Description: This classification is the same as AFM ER316, except for the carbon content. Low
carbon (0.03 percent max.) in AFM ER316L reduces the possibility of
intergranular chromium carbide precipitation and thereby increases the
resistance to intergranular corrosion without the use of stabilizers such as
columbium (niobium) or titanium. It is primarily used for welding low-carbon
molybdenum-bearing austenitic alloys. AFM ER316L, however, is not as strong at
elevated temperature as the columbium (niobium)-stabilized alloys or Type
ER316H.
Chemical Composition Requirements for Undiluted Weld Metal: |
(C) |
Carbon |
0.03 |
| (Cr) |
Chromium |
18.0 to 20.0 |
| (Cu) |
Copper |
0.75 |
| (Mn) |
Manganese |
1.0 to 2.5 |
| (Mo) |
Molybtenum |
2.0 to 3.0 |
| (Ni) |
Nickel |
11.0 to 14.0 |
(P) |
Phosphorus |
0.03 |
(S) |
Sulfer |
0.03 |
| (Si) |
Silicon |
0.30 to 0.65 |
All values are considered maximum, unless other-wise noted.
|
