ER308L – Washington Alloy

ER308L is similar to ER308 but contains an average .02% carbon producing a weld deposit with good resistance against intergranular
corrosion caused by carbide precipitation. ER308L is commonly used for welding AISI types 304L, 308L, 321 and 347.

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Class: ER308L

AWS: A5.9

Conforms to Certification: AWS A5.9           ASME SFA A5.9

Weld Process Used for Mig (GMAW) and Submerged Arc (SAW)

AWS Chemical Composition
C = 0.03 max
Cr = 19.5-22.0
Ni = 9.0 &#; 11.0
Mo = 0.75 max
Mn = 1.0 &#; 2.5
Si = 0.30 &#; 0.65
P = 0.03 max
S = 0.03 max
Cu = 0.75 max

Available Sizes

Diameter X Spool Sizes

Diameter X Coil Sizes

.025 x 2#, 10#, 25# 1/16 x 60# & mill coil .030 x 2#, 10#, 25#, 30#, 33# 5/64 x 60# & mill coil .035 x 2#, 10#, 25#, 30#, 33# 3/32 x 60# & mill coil .045 x 2#, 10#, 25#, 30#, 33# 1/8 x 60# & mill coil 1/16 x 10#, 25#, 30#, 33# 3/16 x 60# & mill coil 5/32 x 60# & mill coil

Application
ER308L has the same analysis as type 308 except the carbon content has been held to a maximum of .03% to reduce the possibility of intergranular carbide precipitation. ER308L is ideal for welding Types 304L, 321, and 347 stainless steels. This is a suitable wire for applications at cryogenic temperatures.

Deposited Chemical Composition % (Typical)

C = 0.02 Si = 0.32 Mn = 1.70 P = 0.011 S = 0.009 Cr = 20.0 Ni = 10

 

Mechanical Properties (R.T.)  

Yield Strength 57,000 psi Tensile Strength 87,000 psi Elongation 34% Reduction of Area 56%

Deposited All Weld Metal Properties
Data is typical for ER308L weld metal deposited by Mig using Argon + 2% oxygen as the shielding gas. Data on sub-arc is not presented, as sub-arc is dependent on the type of flux used.

Recommended Welding Parameters

GMAW &#;Mig Process&#;

Reversed Polarity

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Wire Diameter

Wire Feed

Amps

Volts

Shielding Gas

Gas CFH

Short Arc Welding

.030 13-26 40-120 16-20 Argon+2% O2 25 .035 13-26 60-140 16-22 Argon+2% O2 25

Spray Arc Welding

.035 20-39 140-220 24-29 Argon+2% O2 38 .045 16-30 160-260 25-30 Argon+2% O2 38 1/16 10-16 230-350 27-31 Argon+2% O2 38

Other shielding Gases may be used for Mig welding. Shielding gases are chosen taking Quality, Cost, and Operability into consideration

Recommended Welding Parameters

SAW &#;Submerged Arc Welding Process&#;

Reversed Polarity Suggested

Wire Diameter

Amps

Volts

3/32 250-450 28-32 1/8 300-500 29-34 5/32 400-600 30-35 3/16 500-700 30-35

Both Agglomerated and fused fluxes can be used for submerged arc welding.
Note: The chemical composition of the flux mainly affects the chemistry of the weld metal and consequently its corrosion resistance and Mechanical properties.

 

If you want to learn more, please visit our website ER308L wire for pressure vessel welding.