308L For Welding by Precision Hose & Expansion Joints


Description: This classification is the same as 308/308H, except for the carbon content is held to a maximum of .03%. 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.

Application: Used to weld base metal of similar composition such as 304L, 321, and 347.

Specifications: Conforms to AWS A5.9 Classification: ER308L

Tig Welding Rod
Alloy Size
ER308L 1/16″ (0.063″)
ER308L 3/32″ (0.094″)
ER308L 1/8″ (0.125″)
ER308L 5/32″ (0.156″)


Weld Metal – Chemistry
C (max) Cr Ni Mo (max) Mn Si P (max) S (max) Cu (max)
Typical % 0.03 19.5-22.0 9.0-11.0 0.75 1.0-2.5 .30-.65 0.03 0.03 0.75


Weld Metal – Mechanical Properties
Tensile Strength Yield Strength Elongation
Typical 85 ksi 57 ksi 40%