Stainless Steel - Grade 308L (UNS S30880)

Topics Covered

Chemical Composition
Mechanical Properties


Grade 308L stainless steel is a low carbon version of grade 308. It is particularly used to perform submerged arc welding of grade 304 stainless steel. It can also be used for welding the stabilized grades 321 and 347 in non-corrosive conditions.

The following datasheet provides an overview of grade 308L stainless steel.

Chemical Composition

The chemical composition of grade 308L stainless steel is outlined in the following table.

Element Content (%)
Iron, fe Balance
Chromium, Cr 19-21
Nickel, Ni 10-12
Manganese, Mn 2
Silicon, Si 1
Phosphorous, P 0.045
Carbon, C 0.03
Sulfur, S 0.03

Mechanical Properties

The mechanical properties of grade 308L stainless steel are displayed in the following table.

Properties Metric Imperial
Tensile strength 593 MPa 86000 psi
Yield strength 207 MPa 30022 psi
Elastic modulus 190-210 GPa 27557- 30457 ksi
Poisson’s ratio 0.27-0.30 0.27-0.30
Elongation at break (in 50 mm) 48% 48%


Grade 308L stainless steel can be used for cryogenic applications as it has excellent notch toughness.

Tell Us What You Think

Do you have a review, update or anything you would like to add to this article?

Leave your feedback
Your comment type