What is stainless steel 301L

What is stainless steel 301L

Stainless steel grade 301L has a low carbon is preferred for improved ductility, and another variant 301LN with higher nitrogen content has a higher work hardening rate than standard 301.

Grade 301L has the same chemical contents with grade 301. The difference is the content of C in 301 stainless steel is lower than 0.15 and content in 301L SS is lower 0.03. The next difference is content of N in 301 SS is lower 0.1 and in 301L SS is lower 0.2

Chemical contents
Fe

C
<0.03 %
Cr
16 - 18 %
Ni
6 - 8 %
Mn
< 2 %
Si
< 1 %
P
< 0.045 %
Si
< 0.03 %
N
<0.2


Only stainless steel grade 301 is specified in ASTM A666, but 301L is covered by JIS G4305 and 301LN is in EN10088-2 as grade 1.4318.

301L stainless steel pipe
301L stainless steel pipe