90 Welding Consumables | Stainless Steel | Afrox Product Reference Manual Back to Contents
Afrox Subarc 904L
Welding Consumables
Subarc 904L consumables give a fully austenitic, low carbon weld
metal with molybdenum and copper, with good resistance to
corrosion in sulphuric, phosphoric and other inorganic and organic
acids. They are not normally chosen for resistance to corrosion
in concentrated nitric acid. For service in severe chloride pitting
media, overmatching nickel-based weld metal is recommended. It
is the preferred weld metal for some lower alloy austenitics such
as Creusot UHB 34L and UHB 734L for wet process phosphoric acid
service. Applications include tanks and process vessels, piping
systems, agitators, rotors, cast pumps and valves for use in the
fertiliser, phosphoric, sulphuric and acetic acid plants, and in salt
and seawater environments. It is also used on mild and low alloy
steels.
Classifications
AWS A5.9 ER385
EN ISO 14343-A S 20 25 5 Cu L
EN ISO 14343-B SS 385
Typical Chemical Analysis
% Carbon 0,01 % Chromium 20,0
% Manganese 1,7 % Nickel 25,0
% Silicon 0,3 % Molybdenum 4,5
% Sulphur 0,001 % Copper 1,5
% Phosphorous 0,01
12
Typical Mechanical Properties (All weld metal)
Tensile Strength 650 MPa
0,2% Proof Stress 490 MPa
% Elongation on 4d 35
Impact Energy at -20°C 210 J
Microstructure In the as welded condition the weld
metal microstructure is fully austenitic
Flux Dependent
Packing Data
SAW Wire (DC+)
Diameter Current Pack Mass Item Number
(mm) Amps (A) Volts (V) (kg)
2,4 350 28 25,0 W078180
Suggested flux: Afrox Flux MK-SS or Oerlikon Flux OP33
Back to Section 12 Afrox Product Reference Manual | Welding Consumables | Stainless Steel 91
Afrox Subarc 2209
Welding Consumables
Subarc 2209 is used on duplex stainless steel pipe, plate, fittings
and forgings having an approximate 50:50 microstructure of
austenite with a ferrite matrix. This, coupled with general alloying
level, confers:
High strength compared with standard austenitic steels,
e.g. type 316L
Good general corrosion resistance in a range of
environments
High resistance to chloride induced stress corrosion
cracking (CSCC)
High resistance to pitting attack in chloride environments,
e.g. sea water.
These alloys are finding widening application in the offshore oil/
gas, chemical and petrochemical process industries, e.g. pipework
systems, flow-lines, risers, manifolds, etc.
Classifications
AWS A5.9 ER2209
EN ISO 14343-A S 22 9 3 NL
EN ISO 14343-B SS 2209
Typical Chemical Analysis
% Carbon 0,015 % Nickel 8,2
% Manganese 1,6 % Molybdenum 3,2
% Silicon 0,5 % Chromium 23,0
% Sulphur 0,001 % Copper 0,1
12
% Phosphorous 0,015 % Nitrogen 0,17
Typical Mechanical Properties (All weld metal)
Tensile Strength 800 - 835 MPa
0,2% Proof Stress 560 - 602 MPa
% Elongation on 4d 28 - 35
Impact Energy at -30°C 85 J
Impact Energy at -50°C 70 J
Microstructure Multi-pass welds in the as welded condition contain about 25 -
50% ferrite depending on dilution and heat input/cooling rate
conditions
Flux Dependent
Packing Data
SAW Wire (DC+)
Diameter Current Pack Mass Item Number
(mm) Amps (A) Volts (V) (kg)
2,4 350 30 25,0 W078176
3,2 400 32 25,0 W078178
Suggested flux: Afrox Flux MK-SS or Oerlikon Flux OP33 or Metrode Flux SSB
92 Welding Consumables | Stainless Steel | Afrox Product Reference Manual Back to Contents
Metrode Subarc Zeron® 100X
Welding Consumables
Subarc Zeron® 100X is a solid electrode for welding Zeron®100
and other super duplex alloys for service in the as welded
condition. This electrode is overmatching with respect to nickel
content to achieve the correct austenite-ferrite microstructural
phase balance.
Classifications
AWS A5.9 ER2594
EN ISO 14343-A S 29 9 4 NL
Typical Chemical Analysis
% Carbon 0,015 % Nickel 9,3
% Manganese 0,7 % Molybdenum 3,7
% Silicon 0,4 % Tungsten 0,6
% Sulphur 0,002 % Copper 0,7
% Phosphorous 0,02 % Nitrogen 0,23
% Chromium 25,0 PREn 41 PREw 42
PREw Cr + 3,3Mo + 1,65W + 16N
Pitting Resistance Equivalent
PREn = Cr + 3,3 Mo + 16N
Typical Mechanical Properties (All weld metal)
0,2% Proof Stress 700 - 750 MPa
Tensile Strength 890 - 950 MPa
Elongation on 5d 24
12 Charpy V-Notch at -50°C 40 J
Hardness 290 HV
Flux Dependent
Packing Data
SAW Wire (DC+)
Diameter Current Pack Mass Item Number
(mm) Amps (A) Volts (V) (kg)
2,4 350 29 25,0 W078502
Recommended flux: Metrode SSB
Back to Section 12 Afrox Product Reference Manual | Welding Consumables | Stainless Steel 93
Metrode Subarc 16.8.2
Welding Consumables
Subarc 16.8.2 is a solid wire for welding 300H series stainless
steel. The consumable has a controlled composition optimised for
performance in structural service at temperatures up to 800°C. It
is essentially a dilute hybrid between 308H and 316H. Rather than
matching any single parent metal, it has applications for welding
all the 3XXH series of stainless steels with up to 0,04 - 0,10%
carbon. Applications include catalytic crackers, cyclones, transfer
lines, furnace parts, thick wall steam piping, superheater headers,
gas and steam turbine components in the petrochemical, chemical
process plants and power generation industries.
Classifications
AWS A5.9 ER16.8.2
EN ISO 14343-A S 16 8 2
EN ISO 14343-B SS 16 8 2
Typical Chemical Analysis
% Carbon 0,06 % Nickel 8,5
% Manganese 1,4 % Molybdenum 1,3
% Silicon 0,4 % Chromium 15,5
% Sulphur 0,01 % Copper 0,1
% Phosphorous 0,02 Ferrite Number 1,0 - 6,0
Typical Mechanical Properties (All weld metal)
0,2% Proof Stress 360 MPa
Tensile Strength 630 MPa
% Elongation on 5d 29 12
Charpy V-Notch at -196°C 30 J
Flux Dependent
Packing Data
(DC+)
Diameter Current Pack Mass Item Number
(mm) Amps (A) Volts (V) (kg)
2,4 350 30 25,0 W078520
Recommended flux: Afrox MK-SS, Metrode SSB or Oerlikon OP33
