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Technical Data Sheet
Alloy ER 308L is ideal for welding Types 304L, 321 and 347. This classification is the same as alloy ER 308, except for the carbon content. The carbon content is held to a maximum of 0.03% to reduce the possibility of intergranular carbide precipitation. This increases the resistance to intergranular corrosion without the use of stabilizers such as columbium (niobium) or titanium. Strength of this low-carbon alloy, however, is less than that of the columbium (niobium) - stabilized alloys or Type 308H at elevated temperatures.
Typical Mechanical Properties
Availability
Alloy ER 308/308L is a Stainless Steel TIG, MIG and SUB-ARC wire used for welding. For all stock availability contact Sales.
Specifications
AWS 5.9
ASME SFA 5.9
AWS ER 308/308L
UNS S
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Disclaimer
Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.
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 coilApplication
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.
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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
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 25Spray 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 38Other 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 30-35Both 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.
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