The Solutions Guide
Unitor Maintenance and Repair Welding
PROBLEM STEEL
Cast steel machine bases/supports Cast steel cargo pipes
UNALLOYED & LOW ALLOYED STEEL
Pipes <30mm Capillary joints Large welds in flat position, mild steel
STAINLESS STEELS
Pipes with capillary joints small dia. Larger constructions
CAST IRON
Large size components, cold welding Rebuilding worn or broken parts
ALUMINIUM
Repair of castings Repair of castings
COPPER ALLOYS
Copper pipes <30mm Capillary joint Yorcalbro pipes <100mm Capillary joint
HARDFACING & OVERLAYING
Stainless overlay on mild steel Spark proof overlays on tools
38 39
13
4 13
38 39 + 34
10 29 + 34
Duplex steel used in tanks, cargo loading pipes, heating coils and ladder material. Also for welding duplex to mild steel
14
14 37 Replacing missing parts with steel plate
16 26
33
26 33
38
39
38
11
36
Pipes <160mm t<3mm, butt joint unalloyed
Main parts of the ships construction
Mechanical structures with high loads
Machine parts of U.S. T1 steel
Butt welded thin walled pipes
Oil impregnated or old cast iron
Rebuilding worn or broken areas
Cracks in larger parts
Larger size copper pipes
Yorcalbro pipes <100mm butt welds/patches
Hardfacing rope or chain handling equipment
Rebuilding shaft ends
24 27 28
13
13
10
21 + 34
12 + 34
14
14
17
33
26
16 26 33
35
22 31
17
13 36
Pipes >160mm t>3mm unalloyed
Weld subject to high loads
Rebuilding worn edges and engine parts
Joining tool parts
Thin walled constructions
Compound steel first layer, or mild steel to stainless steel
Small parts preheated
Reassembling broken parts
Reassembling broken parts
Plate or tube constructions
Rebuilding pump impeller wear edge (bronze)
Constructions of Yorcalbro
Anchor winch wheels and guides
Cargo grab wear surfaces
+ 34 1 3 27 28 3 4 13 13 17 38 39 10 21 38 39 11 30 + 34 37 14 26 33 16 26 33 15 30 39 31 22 31 17 17
Galvanized pipes and plates
Weather resistant steel used for flue gases and sea water
Rebuilding gear teeth
Rebuilding machine parts
Rebuilding impeller blades
Cunifer pipes <100mm
CUTTING & GOUGING
15 30 31 All unalloyed/low alloyed steels, cutting, gouging applications, thickness up to 100mm. UTC-500 Cutting, gouging or flushing plates, all conductive materials Removing welds or other excess material Preparing grooves, opening cracks, small cuts, in all conductive materials All applications on electrically conductive materials, thickness up to 38mm 38
Hardfacing/ rebuilding wear surfaces on machine parts
Spot welds on ladder steps
35
13 17
13 17
13
17
13
17
Large welds in flat Cast steel repairs position on ships quality steel
Gear wheel welded to shaft
Tool repairs (building up drill shank)
Fractures in pump housing bronze/ brass
Cunifer pipes >100mm
Rebuilding exhaust valve seats
Rebuilding gear teeth
UNITOR UTC-500
UNITOR PLASMA CUTTER
13
13
13
Acetylene and Oxygen supply 20 20 19
Clean compressed air and mains power supply
15 31
23
32
18
36 13
Thin plate constructions
General repairs and tack welding
Joining of spring steel
Cracks in bearings housings
HOW TO USE THE SOLUTIONS GUIDE FOR UNITOR PRODUCTS
ALUMINIUM
Repair of castings Holes or fractures in smaller parts
Filling pittings in valve housing bronze/brass
Repair of sliding surface brass/ bronze
Steel valve closing surface
Rebuilding worn feeder screws
24 27
27
28
13
13
Ice class hull plates and plate/ pipe material used for low temperature cargo
Boiler plates and tubes of chrome/ molly alloyed steel
Joining of tool steel
Fuel injector pipes
Repair of castings
26 -235 A magnesium alloyed 16 -351N Sea water resistant
ALUMAG
15 35 36
31
15 36 Light constructions e.g. electrical components
17 18
13 17
ALUMIN
16 26 33 33
25
13
13 17
Identify base material in headings
Find the closest related problem
-235 Solid sea water resistant
ALUMAG-W
Still in doubt? See the Wilhelmsen Ships Service Welding Handbook
Rebuilding threads on fittings brass/ bronze
Rebuilding closing surfaces on butterfly valve
Cargo grab teeth
Study the alternative solutions
35
40
36
13 17
COATED ELECTRODES FOR ARC WELDING/CUTTING
1
GPO-302N
GPR-300H
SPECIAL-303N
LH-314N
LHH-314H
LHV-316N
LHT-318N
LHL-319N
LHR-320N
10
18/8-321N
Versatile general purpose electrode type organic rutile, for unalloyed steels
DIA. 2.5mm 3.2mm 4.0mm AMP. 60100 80150 100200 DC AC
High recovery (180%) rutile electrode for downhand welding of large deposits on unalloyed steel
DIA. 3.2mm 4.0mm 5.0mm AMP. 130170 180230 250340 DC AC
Double coated electrode for unalloyed and ship quality steel
DIA. 2.0mm 2.5mm 3.2mm 4.0mm AMP. 4080 5090 90150 120190 DC+ AC
Low hydrogen type basic electrode for unalloyed steels, ship quality steel and cast steel
DIA. 2.5mm 3.2mm 4.0mm AMP. 75105 95155 125210 DC
High recovery (160%) basic electrode for down-hand welding of large deposit on unalloyed and ship quality steel
DIA. 4.0mm 5.0mm AMP. 170240 225355 DC AC
Low hydrogen type basic electrode especially for welding of unalloyed steels, ship quality steel and cast steel vertical down
DIA. 3.2mm 4.0mm AMP. 110150 180220 DC+
Basic type electrode for heat resistant low alloy steels, used e.g. for boilers and boiler tubes
DIA. 2.5mm 3.2mm 4.0mm AMP. 60100 80150 100200 DC AC
Low hydrogen type basic electrode for low temperaturesteel with up to 2.7% Ni. Ice class hull plates. Plates and pipes used for low temperature cargo DIA. 2.5mm 3.2mm AMP. 70110 105150 DC+ AC
Low hydrogen type basic electrode for weathering steel. Corrosion resistant to sea water and flue gases
DIA. 2.5mm 3.2mm AMP. 80115 100150 DC+ AC
AWS type 316L electrode for all position welding of most stainless steels found on board
DIA. 1.6mm 2.5mm 3.2mm AMP. 3550 6090 80125 DC+ AC
11
23/14-322N
12
DUPLEX-325N
13
TENSILE-328N
14
High alloy electrode for clad steel, stainless to steel and corrosion resistant overlays on mild steel
DIA. 2.5mm 3.2mm 4.0mm AMP. 5090 90120 130180 DC+ AC
A rutile basic duplex stainless steel welding electrode for all welding positions. For welding duplex to duplex, duplex to stainless steel and duplex to mild steel
DIA. 2.5mm 3.2mm 80120 AMP. 5090 DC+ AC
High alloy electrode for joining or overlaying. For all problem repairs of steels where other electrodes fail
DIA. 2.5mm 3.2mm AMP. 5085 80125 DC+ AC
General purpose cast iron electrode for rebuilding, joining cast iron to cast iron or for joining cast iron to other materials. On old, oil- contaminated cast iron use NICKEL-333N as buffer layer DIA. 3.2mm 4.0mm AMP. 75100 85160 DC AC
NIFE-334N
15
ALBRONZE-344
16
ALUMIN-351N
17
WEARMAX-327
18
IMPACT-329S
19
CH2-382
20
ACA-384
Electrode for welding of copper alloys and also joining of these to steel and cast iron
DIA. 3.2mm AMP. 80160 DC+ AC
Sea water resistant aluminium electrode for joining or rebuilding rolled, drawn or cast aluminium
DIA. 3.2mm AMP. 70110 DC+
Electrode for repair of worn winch and anchor windlass wheels, dredger and cargo handling equipment and equipment subject to metal earth or metal to metal wear
DIA. 2.5mm 3.2mm 4.0mm AMP. 75140 90170 120240 DC+ AC
Cobalt alloyed electrode for overlaying steel surfaces subject to impact, corrosion or wear at high temperature
DIA. 3.2mm 4.0mm AMP. 70120 90150 DC+ AC
Gouging electrode for cutting or preparing grooves in steels, cast iron, stainless steels and copper alloys. Use ordinary electrode holder
DIA. 3.2mm AMP. 160280 DC AC
Carbon graphite electrode for cutting, flushing, gouging conductive materials. Use special holder, 69 bar air supply
DIA. 6.3mm 8.0mm 16 x 5mm flat AMP. 200350 200450 400600 DC+
RODS FOR TIG & GAS WELDING
21
WIRES FOR WIRE WELDING
27
RODS FOR SOLDERING/BRAZING
S309M-GF-222
35
18/8MO-221
22
IALBRO-237MF
23
ICUNI-30-239
GPS-W-200
28
MS-W-201
29
S316M -GF
30
FC-BRONZE-261
36
FC-WEARBRO-262
37
FC-CAST IRON-268
ID No 804005 Designed and produced by Voice reklame. Printer: Grafia - Norway. 02.10 5K. Country of origin Norway.
Molybdenum alloyed welding rod for corrosion resistant and acid resistant steels
TIG: No flux needed Argon shielding gas Current DCDIA. 2mm
Flux-coated aluminiumbronze for welding of Yorcalbro. Anneal at 350C after welding
TIG: Flux: I flux 238 PF Argon shielding gas Current DCDIA. 2.4mm
Copper-nickel alloyed rod for Cunifer 70/30 and 90/10
TIG: No flux needed Argon shielding gas Current DCDIA. 2.5mm
General purpose solid wire for unalloyed steels including sheet metal. Welds in all positions including vertical down
GMAW: Current: DC+ Shielding gas: Argon 80% CO2 20% (0r CO2 100%) DIA. 0.8mm Spool: O.D. 200mm, 5kg
Self shielded fluxcored wire for low alloyed + unalloyed steels, all thicknesses.Handles poor fitup. All positions including vertical down
FCAW: Current: DCShielding gas: None DIA. 0.8mm Spool: 200mm, 4,5kg
Gas shielded fluxcored wire for welding stainless and acid resistant steels of 316 type. Welds in all positions including vertical down
FCAW: Current: DC+ Shielding gas: Argon 80% CO2 20% DIA. 0.9mm Spool: 200mm, 2.5kg
Gas shielded fluxcored wire for welding stainless steels AISI 309 + repairs of AISI 317. Welding of mild steel stiffeners to stainless steel and repairs of clad steel (compound steel) FCAW: Current: DC+ Shielding gas: Argon 80% CO2 20% DIA. 0.9mm Spool: 200mm, 2.5kg
Fluxcoated bronze rod with low melting point.
Flux-coated bronze rod for surfacing or rebuilding
FC-CAST IRON-268
Flux: Bronze flu-261PF Flame: Neutral, Ox-surplus for brass or galvanized steel DIA. 2mm, 3mm
Flux: Wearbroflux-262PF Flame: Neutral, Ox-surplus for brass or galvanized steel DIA. 3mm, 5mm
Flux:
No additional flux needed Flame: Ox-surplus DIA. 4mm
24
IMS/MS-210 -200
25
ICROMO-216
26
ALUMAG-235
31
IALBRO-W-237
32
ICUNI-W-239
33
ALUMAG-W-235
34
PICKLING GEL
38
AG-60-252
39
AG-45-253
40
TIN-240
General purpose rod for GAS or TIG welding of unalloyed steel
TIG: Use IMS-210 current DCArgon shielding gas DIA. 2mm GAS: Use MS 200Neutral flame DIA. 2mm, 3mm
Chrom-molybdenum alloyed rod for heat resistant steels
TIG: No flux needed, DCArgon shielding gas DIA. 2.5mm
A magnesium alloyed aluminium rod for gas welding of cast, rolled or drawn aluminium
GAS: Use Aluflux 234F Flame: Slight AC surplus DIA. 3mm
Solid copper based wire for bronzes, brasses and aluminium brass alloys, e.g. Yorcalbro. Also wear resistant and corrosion resistant overlays on steel GMAW: Current: DC+ Shielding gas: Pure Argon DIA. 0.8mm Spool: O.D. 200mm, 2kg
Solid copper based wire for copper-nickel alloys, e.g. Cunifer 90/10 and 70/30 which are used in a.o. cooling water systems on board GMAW: Current: DC+ Shielding gas: Pure Argon DIA. 0.8mm Spool: OD. 200mm, 2kg
Solid seawater resistant aluminium wire for repair welding of practically all aluminium alloys found onboard, including cast part GMAW: Current: DC+ Shielding gas: Pure Argon DIA. 1.0mm Spool: O.D. 200mm, 2kg
Pickling gel is used to remove oxides and discolouration after welding of stainless steel. Apply with brush. Remove with water after 1 hour Container: 2 litre, 2,5kg (incl.brush)
Exceptionally easy flowing flux-coated capillary solder containing 56% silver
Flux: AG-60/45 flux 252 For Yorc Albro use Albro Flux-263PF Flame: Neutral DIA. 2mm
Silver solder for capillary joints, containing 45% silver
Flux: AG-60/45 flux 252 Flame: Neutral DIA. 2mm
Soft solder on a spool. Flux is included in the wire. No additional flux needed
Flux: Soldering iron or indirect heating with AC-surplus flame 1.6mm
DIA.
For more information regarding Unitor welding products please visit our website
www.wilhelmsen.com/shipsservice
