300 Series Austenitic
Type
C
Mn
P
S
Si
Cr
Ni
Mb
302
0.15
2.00
0.045
0.030
1.00
17.00/19.00
8.00/10.00
-
304
0.08
2.00
0.045
0.030
1.00
18.00/20.00
8.00/10.50
-
304L
0.03
2.00
0.045
0.030
1.00
18.00/20.00
8.00/12.00
-
309
0.20
2.00
0.045
0.030
1.00
22.00/24.00
12.00/15.00
-
309S
0.08
2.00
0.045
-
1.00
22.00/24.00
-
-
310
0.25
2.00
0.045
0.030
1.5
24.00/26.00
19.00/22.00
-
310S
0.08
2.00
0.045
0.030
1.5
24.00/26.00
19.00/22.00
-
316
0.08
2.00
0.045
0.030
1.00
16.00/18.00
10.00/14.00
2.00/3.00
316L
0.03
2.00
0.045
0.030
1.00
16.00/18.00
10.00/14.00
2.00/3.00
317
0.08
2.00
0.045
0.030
1.00/1.00
18.00/20.00
11.00/15.00
3.00/4.00
317L
0.03
2.00
0.045
0.030
0.75
18.00/20.00
11.00/15.00
3.00/4.00
321
0.08
2.00
0.040
0.030
1.00
17.00/19.00
9.00/12.00
0.75/0.75
347
0.08
2.00
0.040
0.030
0.5/1.00
17.00/19.00
9.00/12.00
0.5/0.75
400 Series Martensitic
Type
C
Mn
P
S
N
Si
Cr
Ni
Mb
410
0.15
1.00
0.040
0.030
-
1.00
11.5 / 13.5
-
-
410S
0.08
0.30/0.65
0.030
0.010
0.060
0.15/0.50
12.00 / 12.60
0.20/0.55
0.20/0.55
416
0.15
1.25
0.060
0.15 min
-
1.00
12.00 / 14.00
-
-
420
0.15 min
1.00
0.040
0.030
-
1.00
12.00 / 14.00
-
-
430
0.15
1.00
0.040
0.030
-
1.00
16.00 / 18.00
-
-
440C
0.95/1.20
1.00
0.040
0.030
-
1.00
16.00 / 18.00
-
0.75
Notes :
This table is intended for estimating purposes only and lists typical
chemical properties for a variety of 300 and 400 series stainless
steel grades. All values shown indicate the maximum percentage
unless otherwise noted.