MAN Truck & Bus AG WORKS STANDARD March 2012

Bent tubes
M 3005-1
Documentation

Dimensions in mm

This English version is a translation. In case of doubt or conflict the valid German-language original will govern.

Contents
1 Scope and purpose
2 Documentation of tubes
1 Scope and purpose
The standard defines the types of documentation for cold-bent tubes (as a rule conduits).
In addition to production of bends, the tubes may also be worked by means of forming (e. g. beads or
flanges), welding (welded in tube bends or welded-on parts) or machining.
The purpose of the standard is to ensure uniform documentation, thereby guaranteeing unambiguous
definition of the tubes, even in the event of production relocations or external manufacturing.
The standard does not apply to tubes in load-carrying welded structures. For further information on this,
refer to M 3005-2.

2 Documentation of tubes
2.1 Tubes according to sample (without drawing)
Tubes according to sample may be used in tube systems if they are manufactured as in-house
components and their processing comprises only bending and, if necessary, production of standardised
tube connections (section 2.4). In order to avoid the necessity for subsequent production of drawings in
the event of production relocation (e. g. to another MTB plant or in-house component becomes
purchased part), tubes should be defined according to sample only in special cases.
Assy. pipelines (composite tubes, tubes with welded parts) may be defined according to sample only in
special cases.
Provisional definition by sample for assy. tubes/pipelines is permissible only if the coordinates and
bending data are not yet known. Once the bending data is available (e.g. in a measurement report), the
production drawing shall be produced from the design according to Section 2.2 and a parts list created if
necessary in the case of definition according to 2.2.2.
Item definition
The item definition is via the sample tube (including measurement report), the item number and the item
designation.
In addition to the tube designation, the item designation also contains the cross-section of the tube (the
cross-section of the main tube in special assy. cases) and the code letter for the function-specific semi-
finished product standardised according to Table 1.
Example for specification in item master data:
- Item number: 81.06302-0519
- Item designation: COOLANT PIPE 1) B – 60x1,5
Code letter of the semi-finished tube according to Table 1
Tube cross-section
- Definition and identification type (DI): M
- Document/standard number (DOC NO.): M 3005
1)
Coolant pipes shall be beaded at both ends according to M 3103-1.

Continued on Page 2 to 17

Prepared by: Lapper Release EAS: Replaces: 2011-05 Material group no.:
2012-05, englisch

MAN Truck & Bus Aktiengesellschaft, Munich works - Dept. Standardization (EAS)  All rights reserved according to ISO 16016.
Distribution and use of the contents are not allowed without written permission from MAN Truck & Bus Aktiengesellschaft.
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M 3005-1 : 2012-03
Table 1 Metallic semi-finished products for pipes
When assigning item numbers for tubes according to sample, the code letter for the function-specific semi-finished product is to be specified in agreement with the number
requester. New semi-finished products will be added to Table 1 by the Standards Department on request. The use of higher quality materials is permissible if functionally suitable
without changing the item master data and is to be documented in the corresponding work plans. See also explanations.
Code letter (is to be specified – see explanations)
Pipe function Designation Part type Application instructions
Standard semi-finished products (not to be specified)
Selection by Production Preparation
A M 3313 Ro C-E235+N Not for new designs
1)
Normal case: M 3313 Ro C-E235+N A7D To be preferred.
Oil cooling/oil lubrication, engine, for 3)
Oil pipe XX.057XX- Provide pipes with corresponding top
Truck+Bus D
coating.
Special case: M 3313 Ro C-E235+N
To be used only if A7D-coated semi-
finished product not available.
Ro 60x1,5 in CE235+N-IG, execution
as per M 3304
Normal case:
M 3313 Ro C-E235+N Pipes coated in accordance with
Water cooling, engine/gearbox, for Coolant pipe XX.063XX- B drawing entry. Normal case M 3018-
Truck 1.
Pipes coated in accordance with
Special case: M 3313 Ro C-E235+N A7D 1) drawing entry. Normal case M 3018-
1.
C DIN 1755 Ro CuZn 37 F29/37
To be preferred for new bus
designs.
Normal case:
Water cooling, engine/gearbox, for Pipes coated in accordance with
Coolant pipe XX.063XX- M 3313 Ro C-E235+N
Bus drawing entry. Normal case M 3018-
B 1.
Pipes coated in accordance with
Special case: M 3313 Ro C-E235+N A7D 1) drawing entry. Normal case M 3018-
1.
Normal case: M 3313 Ro C-E235+N A7D 1) To be preferred.
Suction, pressure, Provide pipes with corresponding top
Hydrostatic fan drive for Truck XX.066XX- D coating.
return pipes Special case: M 3313 Ro C-E235+N
To be used only if A7D-coated semi-
finished product is not available.
Normal case: M 3313 Ro C-E235+N A7D 1)
Suction, pressure, D
XX.066XX- Special case: M 3313 Ro C-E235+N
Hydrostatic fan drive for Bus
return pipes Currently in the qualification
U M01.942 Ro X6CrNiTi 1810K phase for bus new designs 2)

Continuation of Table 1 on Page 3

Footnotes see Page 5
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Table 1 continued
Code letter (is to be specified – see explanations)
Pipe function Designation Part type Application instructions
Standard semi-finished products (not to be specified)
Selection by Production Preparation
To be preferred.
Normal case: M 3313 Ro C-E235+N Pipes provided with corresponding
Air intake, engine, for Intake pipe XX.082XX- top coating.
Charge-air pipe XX.094XX- E To be used only if semi-finished
Truck+Bus Special case: M 3304 Ro C-St/M 3200+N opt. +A, optionally product in accordance with M 3313 is
DC01-A in acc. with drawing not available. Pipes provided with
corresponding top coating.
Normal case: M 3313 Ro C-E235+N A7D 1) To be preferred.
Pipes provided with corresponding
Fuel pipe, diesel, for Truck Fuel pipe XX.123XX- F top coating.
Special case: M 3313 Ro C-E235+N
To be used only if A7D-coated semi-
finished product not available.

Fuel pipe, diesel, for Bus Fuel pipe XX.123XX- V M01.942 Ro X6CrNiTi 1810K

Rigid fuel lines for CNG and LPG

G M 3512 Ro NSTG
systems
Fuel pipe, gas, for Bus Gas pipe XX.123XX-

CNG, hydrogen vent pipes

T DIN 1755 Ro CuZn 37 F29/37
(unpressurised)
Material: Ro X6 CrNiMoTi 17 12 2 (1.4571) optionally

CNG, hydrogen
Gas pipes Bus;
Ro X2 CrNiMo 18 14 3 (1.4435)
Semi-finished product Dimensions (outside diameter x wall thickness) CNG, hydrogen pipe
Fuel pipe, gas, for Bus Gas pipe XX.123XX- W number
01.93270-5453 3x0,7
01.93270-5464 12x2
Hydrogen pipe
01.93281-5474 3/4“x0,065“

Exhaust/exhaust system for H M 3304 Ro C-St/M 3200+N opt. +A

Exhaust pipe XX.152XX- Y M 3435 Ro NST e.g. for vertical exhaust system.
Truck+Bus Z M 3305 Ro DX54D+AS120
Urea system for Truck + Bus Heating pipe XX.154XX- N M01.942 Ro X6CrNiTi 1810K Heating pipe with coolant as medium

Continuation of Table 1 on Page 4

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M 3005-1 : 2012-03
Footnotes see Page 5

Table 1 continued

Code letter (is to be specified – see explanations)

Pipe function Designation Part type Application instructions
Standard semi-finished products (not to be specified)
Selection by Production Preparation
Hydraul. clutch actuation Hydraulic line XX.311XX- K DIN 74234 Ro B St Fe/Zn 20B Not for new designs.
A M 3313 Ro C-E235+N 2) Not for new designs.
Normal case: M 3313 Ro C-E235+N A7D 1) To be preferred.
Oil cooling, gearbox
Oil pipe XX.325XX- Provide pipes with corresponding top
Truck+Bus D coating.
Special case: M 3313 Ro C-E235+N
To be used only if A7D-coated semi-
finished product not available.
Not for new designs. Use version
Normal case (previously): M 3313 Ro C-E235+N A7D 1)
D J for new designs.
Special case: M 3313 Ro C-E235+N
Hydrostatically driven front axle Normal case: M 3313 Ro C E355+N A7D 1) To be used for new designs.
Hydraulic line XX.360XX-
Truck Provide pipes with corresponding top
J coating.
Special case: M 3313 Ro C E355+N
To be used only if A7D-coated semi-
finished product is not available.
Lubrication for control arm
Lubrication pipe XX.442XX- L M01.942 Ro X6CrNiTi 1810K
Truck+Bus
Normal case: M 3313 Ro C-E235+N A7D 1) To be preferred.

XX.473XX- Provide pipes with corresponding top

Hydraulic steering booster Truck Suction line D coating.
Pressure line Special case: M 3313 Ro C-E235+N
To be used only if A7D-coated semi-
Return line finished product not available.
Hydraulic steering booster for
XX.473XX- S M01.942 Ro X6CrNiTi 1810K
Bus
Brake pipe, air
Compressed-air pipe, auxiliary Brake pipe Application-related additional
Compressed-air pipe XX.512XX- M M01.942 Ro X6CrNiTi 1810K specifications are permitted.
systems for Truck + Bus

Continuation of Table 1 on Page 5

Footnotes see Page 5
Table 1 continued
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Code letter (is to be specified – see explanations)

Pipe function Designation Part type Application instructions
Standard semi-finished products (not to be specified)
Selection by Production Preparation
Normal case: M 3313 Ro C-E235+N A7D 1) To be preferred.
Provide pipes with corresponding top
Heating pipe D coating. To be used only if A7D-
Special case: M 3313 Ro C-E235+N
coated semi-finished product not
available.
N M01.942 Ro X6CrNiTi 1810K Only if expressly required.
Heating for Truck To be preferred.
Normal case: M 3304 Ro C-St/M 3200+N opt. +A Provide pipes with corresponding top
XX.619XX- coating where appropriate.
To be used only if semi-finished
Exhaust pipe R product in accordance with M 3304 is
Special case: M 3313 Ro C-E235+N not available.
Provide pipes with corresponding top
coating where appropriate.
Air-conditioning system, refrigerant Optionally permitted:
Refrigerant pipe X M 3313 Ro C-E195+N / M 3313 Ro C-E235+N Provide pipes with corresponding top
for Truck M 3308 Ro C-E195+N / M 3308 Ro C-E235+N coating.
Hydr. cab tilt mechanism for Pressure and return Q M01.942 Ro X6CrNiTi 1810K
XX.417XX-
Truck pipes O M 3313 Ro C-St 37.4+N A7D
Material quality St 37.4N in
Pressure line XX.675XX- O M 3313Ro C-St 37.4+N A7D accordance with DIN 1630 for
especially high pressure loads.
Hydraulics for attached parts and
bodies Normal case: M 3313 Ro C-E235+N A7D 1) To be preferred.
Suction line
(working hydraulics) for Truck Provide pipes with corresponding top
Pressure line XX.675XX- D
coating.
Return line Special case: M 3313 Ro C-E235+N
To be used only if A7D-coated semi-
finished product not available.
Heating for Bus Heating pipe XX.779XX- C DIN 1755 Ro CuZn 37 F29/37
Air-conditioning system, refrigerant
Refrigerant pipe XX.779XX- P DIN 1786 Ro SF-Cu F22
for Bus
1
) Alternative use of semi-finished pipes with A4C coating is permitted only in tested individual cases.
2
) In the qualification phase – use version "D" for the time being
3
) Code letter D also applies in the special case of use of steel pipes for oil filler tubes XX.058XX- and XX.018XX- (use only if oil filler is in hot zone)
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2.2 Tubes with drawing

If tubes in pipe systems are defined by drawings, the code letter for the function-specific semi-finished product,
standardised according to table 1, shall be entered in the drawing text box in accordance with the following
example: M 3005 - D - 10x1.
Plain text specifications for semi-finished products are permissible only following agreement with the
Standardization Department. The use of the code letter outside the function groups according to Table 1 is not
permitted.
Tubes that cannot be bent out of one piece according to sample and that must be welded out of tube pieces
shall be defined in accordance with Section 2.2.1. Joints are not to be specified in the drawing, but the
requirements for the weld seam shall be specified.
Tube pieces themselves are not assigned an item number.
If prefabricated tube bends are used, please note Section 2.2.2. The sequence of document creation shall
comply with Section 2.2.3 in the case of shift rods for which the installation conditions are not yet known at the
time of documentation creation.

2.2.1 Representation with coordinates and bending table

Tubes that cannot be defined by sample, e.g. tubes with welded parts, functional bores etc., shall be
dimensioned in drawings, preferably by means of coordinates and bending tables.
The dimensions "overall" and the coordinate system at the start of the tube shall be specified in the drawing.
Example, see Appendix 1

POINT ELONGATED LENGTH: DEFINITION ACCORDING TO M 3005-1

or COORDINATES FOR DRAWN POSITION BENDING DATA FOR SELECTED
BEND RADIUS:
X Y Z AZB VDW BW
0 0,0 0,0 0,0 --- --- ---
1 ---
2
3
4
5
6

+ VDW
R = Radius in bend
AZB = Distance from the preceding point or bend
R
BW = Bending angle (degrees) AZB
VDW = Twist angle (degrees) AZB
Important: Pay attention to direction of rotation - VDW
of the bending machine for production!

Figure 1: Tube representation with coordinates and BW

bending table
Viewing
direction
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2.2.2 Tubes with welded-in tube bends

If individual bends cannot be produced on the bending machine (e.g. bending radii too small), prefabricated,
weldable tube bends shall be specified in the drawing.
The requirement determined on the initial sample shall be specified in the parts list.
Dimensioning shall be preferably to be carried out using coordinates and bending data.
If deviating bending data is required in special cases, this shall be specified on the bend.
Conventionally created drawings shall be dimensioned in accordance with Appendix 3.

2.2.3 Documentation of shift rods with the cooperation of other specialist departments
When designing shift rods for which the installation conditions are not yet known at the time of documentation
creation (e.g. shift rods which are designed, manufactured and assembled in association between several MTB
plants), the following procedure shall be followed:
- The design engineer allocates an item number and releases the shift rod assy. drawing. This preprinted
drawing is filed under TCN_M_U54MS_MODEL item no.:81.32660.XXXX.
Content of the preprinted drawing:
Symbolic representation of the assy. shift rod (without specification of the bending data for the tube
and the coordinates for the position of the welded-on parts),
Numbering of the assy. shift rod,
Reference to the continuation sheet of the assy. drawing (as a rule, sheet 2) with measurement
report,
Numbering of the individual parts of the assy.,
Specification of the elongated length of the tube as approx. dimension,
Deviations from the illustration are to be corrected insofar as they are known.
- Creation of the parts list and preparation of the assy. drawing in EZIS.
- With the first vehicle with the correct equipment, a sample shift rod is produced from the test of the relevant
plant on the basis of the released assy. drawing, test installation carried out and the shift rod functionally
released.
- The sample shift rod is sent for measurement and a test report is compiled with the item number of the
released assy. drawing.
- The measurement data is released as soon as possible as a continuation sheet to the released assembly
drawing and forwarded to production, and if necessary, to the fixture construction department.
- Fixture construction (such as cutting and welding fixtures) takes place in accordance with all sheets of the
released assy. drawing and the sample shift rod.

2.2.4 Conventional representation of tubes

The conventional representation of tubes should only be used for simple deformations (e.g. only one bend),
see Appendix 3, or in cases in which the drawing is not created using CAD.
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2.3 Bending radii/tolerances

Bending radii in accordance with M 3153 are preferably to be used when cold bending the tubes. If the radius
is less than the permissible bending radius, standard commercially available tube bends or bends
manufactured in accordance with the MAN drawing must be used. In this case, the initial sample shall be
produced correspondingly and the design represented in the measurement report.
The general tolerances according to Table 2 and Table 3 apply, unless otherwise specified in the component
drawing.
M 3199 must be entered in the field “General tolerances and/or TL” in the component drawing.
The positional tolerances specified in Table 2 relate to the axis distances between two coordinate points
(01,12,…) and their radii transitions (see Figure 2). Table 3 specifies the permissible deviation of the end
surface of the tubes, based on the overall length of the bent tube, as a positional tolerance (see Figure 2).
The coordinate dimensions stated in the bending table apply as “theoretically accurate dimensions” in the
sense of DIN EN ISO 1101.

Table 2: General tolerances of the axis distances for bent tubes

Tube type/diameter range General tolerance Tolerances for tube ends 3)

Support Shape and positional tolerances Shape and positional tolerances
e.g.: mudguard support according to drawing according to drawing
Conduits
Ø ≤ 30 mm Ø4 ^ ± 2 mm
= Ø2 ^ ± 1 mm
=
1)

Wall thickness ≤ 1,5 mm

1)
Ø ≤ 30 mm
Wall thickness > 1,5 mm Ø4 ^ ± 2 mm
= Ø2 ^ ± 1 mm
=
2)

30 mm < Ø ≤ 60 mm
Existing tubes Ø3 ^ ± 1,5 mm
= Ø2 ^ ± 1 mm
=
1)

New designs 4) Ø4 ^ ± 2 mm
= Ø2 ^ ± 1 mm
=
1)

Ø > 60 mm
Existing tubes Ø3 ^ ± 1,5 mm
= Ø2 ^ ± 1 mm
=
1)

New designs 4) Ø4 ^ ± 2 mm
= Ø2 ^ ± 1 mm
=
1)

1)
Clamping positions (or deviations in general) with narrower tolerances are to be specified in the drawing with
marking of the neuralgic distances (see Figure 3)
2)
Additional test/installation dimensions, including tolerances, must be specified in the drawing (see Figure 3)
3)
The positional tolerance applies for a length of max. 100 mm of the first and last part distance, measured from
the respective tube end (see Figure 2).
4)
New designs are drawings with issue dates after 01.12.2007.

Table 3: General tolerance for the end surface of the bent tubes

Nominal dimension range of the up to 400 mm above 400 to 1000 mm above 1000 mm
overall length
Positional tolerance of the end
3 4 6
surface
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(
)
( )

( )

Figure 1: Drawing representation

( )
100
100
Ø4

Ø2 Ø2

Figure 2: Meaning of the positional tolerances according to Table 2 and Table 3

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Depending on functional requirements, the positional tolerance for each individual distance and the tolerance
for the test/installation dimensions can be restricted by an explicit comment in the component drawing
(see Figure 3).

Ø2

M 3005-B-50x2

Figure 3: Drawing example with additional specifications

For pipes with compression fittings with cutting rings, the specifications according to DIN 3859-2 apply for the
tolerances of the tube ends in addition to this standard.

Checking the dimensional accuracy

When inspecting the bent tubes, the bent tube is generally recorded using an adequate number of
measurement points (to be agreed, if required) and compared with the theoretically exact tube (CAD model)
+ tolerance band (according to Table 2) using the best fit method.

The pictorial representation of weld seams and semi-finished products is omitted in order to give production the
option to continually optimise the production process without changing drawings.
Exception: Weld seams on brackets and flanges

2.4 Pipe connection or end

Depending on the function of the pipeline (table 1), tube connections are to be designed as a rule with the
following connections according to works standard M 3057:
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- Pipelines for hose connections with beads according to M 3103-1.

- Pipelines with flare connection with male fittings according to DIN 74233 – ES and with flare
DIN 74234 – Shape E.
- Pipelines for cutting ring connection with cutting rings according to MAN 195 or DIN 3861 and with male
fitting according to WF DIN 3870 – Shape A. See also overview standard M 3093.
- The end of the exhaust pipes shall be produced according to manufacturing instruction M 30-1530.
Line connections or ends of tubes according to sample (without drawing) shall be designed analogously to the
sample tube, corresponding to the respective standard.

2.5 Hard-soldered joints on pipelines

The requirements in accordance with M 3520 apply to hard-soldered joints on media-carrying pipelines in order
to guarantee the quality of these joints.

Standards quoted
DIN 1630 Seamless circular steel tubes made of unalloyed steels subject to especially high requirements;
technical terms of delivery
DIN 1755 Tubes made of copper alloys, seamlessly drawn; dimensions and tolerances
DIN 1786 Installation tubes of copper, seamlessly drawn
DIN 2462 Seamless tubes of stainless steels
DIN 3859-2 Compression couplings, Part 2: Assembly instruction for non-soldering compression couplings
with cutting rings according DIN 2353 and DIN EN ISO 8434-1
DIN 3861 Non-soldering compression fittings - Compression rings - Design
DIN 3870 Works version: union nuts
DIN 74233 Hydraulic braking systems; fittings for brake pipes; male fittings for brake pipes
DIN 74234 Hydraulic braking systems; brake pipes, flares
DIN EN ISO 1101 Geometrical Product Specifications (GPS) - Geometrical tolerancing - Tolerances of form,
orientation, location and run-out
M 01.942 Welded precision tubes made from austenitic stainless steels; dimensions and quality
regulations
M 3005-2 Sections of hollow and solid profiles in welded structures; documentation without item number
and individual part drawing
M 3057 Fluid conduit systems in commercial vehicles; functional design
M 3093 Pipelines with compression fittings with cutting rings as per DIN 2353
M 3103-1 Bead profiles and beads for hose connections; beaded
M 3153 Cold bending of tubes with circular cross-section; design dimensions
M 3199 Shape accuracy, general tolerances for MTB, selection, drawing data
M 3200 Material quality for precision steel tubes for exhaust and intake systems, quality standard
M 3304 Precision steel tubes; welded and size-rolled tubes
M 3305 Welded tubes made of low-carbon steels with aluminium-silicon coating for exhaust systems
M 3313 Precision steel tubes; Seamless cold drawn tubes
M 3435 Welded tubes made of stainless steels for exhaust systems
M 3520 Hard-soldered joints on media-carrying pipelines. Quality assurance.
MAN 195 Cutting rings; design and bore shape W

Previous issues: M 3005 / 07.84

M 3005-1 / 07.94 / 11.94 / 02.95 / 11.95 / 04.97 / 07.98 / 12.99 / 04.2000 / 04.2001/
2002-07 / 2005-05 / 2006-08 / 2007-01 / 2007-08 / 2007-11/ 2008-07 / 2009-09 /
2010-04/2010-11/2011-05
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Changes: Compared to issue 1997-04 the following changes have been made:
- Code letter C in part type 81.123XX- fuel pipe, gas - added

Compared to issue 1998-07 the following changes have been made:

- The code letter C in the part type 81.123XX-Fuel pipe, gas was changed to T. Item
master data was adapted.
- Preliminary documentation on shift rods in special cases included (Section 2.2.3)
- Explanations (page 6) added.

Compared to issue 1999-12 the following changes have been made:

- In table 1 for tubes according to DIN 2391, as per new painting concept
- optional surface protection A4D included.

Compared to issue 2000-04 the following changes have been made:

- Section 2.2.3 – Documentation of shift rods: Sheet 2 introduced.

Compared to issue 2001-04 the following changes have been made:

- In Table 1 for tubes according to DIN 2391 surface protection A7D included.
- Coolant pipes, truck, optionally A7D, was A4D
- Hydrostatic fan drive A7D, was A4D
- Fuel pipes optionally A7D, was A4D
- Hydraulic steering booster in A7D, was A4C/A4D
- Heating pipes, truck, optionally A7D, was A4D
- Cab tilt mechanism in A7D was not specified
- Working hydraulics optionally A7D, was A4D
- Clutch actuation application information "Not for new designs" added.

Compared to issue 2002-07 the following changes have been made:

- In Table 1 for tubes material S (X6CrNiTi1810K) extended for all buses.
- Use of the tubes according to sample (Section 2.1) restricted.

Compared to issue 2005-05 the following changes have been made:

- In Table 1, footnote 2 added. Material change (Table 1, DC01-A was St12O3) for air
intake engine/intake pipe.

Compared to issue 2006-08 the following changes have been made:

- In Table 1, Fuel pipe version "V" Ro X6CrNiTi1810K M01.942 added
Compared to issue 2007-01 the following changes have been made:
- In Table 1: Fuel pipes, gas; versions "W" for hydrogen bus added.
Semi-finished product item numbers for versions G, W added
Application instructions G, T, W added
Compared to issue 2007-08 the following changes have been made:
- Section 2.3 completely revised: General tolerances for bent tubes added
Compared to issue 2007-11 the following changes have been made:
- In Table 1: Exhaust pipe in stainless steel version "Y" according to M 3435 added
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Compared to issue 2008-07 the following changes have been made:

- Omission of Appendix 2 (parts list example)
- Table 1:
- M 3313 as replacement for DIN 2391
- M 3304 as replacement for DIN 2394
- Change in material designations E235+N, was St35NBK
- Exhaust pipe with aluminium-silicon coating “Z” in accordance with M 3305 added
- Return line of cab tilt mechanism in stainless steel version “Q” added
- Steel cooling water lines (version “B”) for water cooling, bus (engine/gearbox) added
as preferred variant
- Oil cooling/oil lubrication, engine; version “D” added; version “A” not for new designs
- Air intake, engine; charge air pipe added under part type 81.094 and version “E”
- Hydrostatically driven front axle/hydraulic line added under part type 81.360 in version
“D”
- Section 2.5 added
Compared to issue 2009-09 the following changes have been made:
Table 1:
- Omission of electroplated coating A4C.
- Hydrostatic fan drive in stainless version "U" added for Bus.
- Application instructions supplemented.
Compared to issue 2010-01 the following changes have been made:
Table 1:
- In the area "Coolant pipe" (code letter B), deletion of the semi-finished product variant
M 3304 Ro C-St/M 3200+N
- In the areas "Air intake, engine" (code letter E) and "Exhaust/exhaust system" (code
letter H), addition of the treatment condition (+A) as an optional variant, M 3304 Ro C-
St/M 3200+N opt. +A was M 3304 Ro C-St/M 3200+N
Compared to issue 2010-04 the following changes have been made:
Table 1:
- Urea system heating pipes with code letter N added
- Introduction of works standard M 3512 for definition of fuel-gas lines (code letter G),
deletion of explicit specification of semi-finished product item numbers and
dimensions of gas pipes
Compared to issue 2010-11 the following changes have been made:
Table 1:
- Hydrostatically driven front axle
Code letter J: New normal case: M 3313 Ro C E335+N A7D added
- Hydrostatic fan drive for Bus
Code letter U in qualification phase – use code letter D until further notice
Compared to issue 2011-05 the following changes have been made:
Table 1:
- Hydrostatically driven front axle
Code letter D (M 3313 Ro C E235+N A7D) identified as previously valid normal case.
Note that new designs must use code letter J (M 3313 Ro C E355+N A7D) added.
- Code letter X for use for refrigerant pipes in truck applications added
Table 1 Footnote 3 for oil filler tubes added
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Explanations - Use of semi-finished product code letters for pipelines according to sample
Determination of the code letter
Function, production and routing of a pipeline require a specific semi-finished tube product. This semi-finished
product is assigned a code letter.
Similar semi-finished products and, if necessary, different surface treatments can be designated the same
code letter if these may optionally be used without restriction in this function group.
Semi-finished tube products from materials of a completely different quality receive a different code letter.

Use of a code letter already allocated in other function groups of table 1

The same semi-finished product or the same semi-finished product selection is designated with the same
(already allocated for this semi-finished product) code letter, if the pipelines fulfil identical or similar
requirements regarding function, manufacture and routing.

Assigning a new code letter

New code letters are to be assigned:
- to semi-finished products made from materials of a completely new quality not yet listed in Table 1.
- If the same semi-finished product or the same semi-finished product selection is used for pipelines which
fulfil different requirements regarding function, manufacture and routing.

Reason
Semi-finished product changes or reorganisations for pipelines defined a thousandfold according to sample
(without drawing) cannot be carried out cost-effectively at item number level, but must take place via the works
standard M 3005-1. In these cases, the new semi-finished tube products are assigned to the code letter. For
this reason, only pipelines with identical or similar function, manufacture and routing may be designated with
the same code letter.
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M 3005-1 : 2012-03
Appendix 1

M 3005-H-80x2
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M 3005-1 : 2012-03
Appendix 2

M 3005-H-120x2
 Page 17
M 3005-1 : 2012-03

Appendix 3

M 3005-H-90x2