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A 240/A 240M – 04

Chromium and Chromium-Nickel Stainless Steel Plate,
Sheet, and Strip for Pressure Vessels and for General
Applications

This standard is issued under the fixed designation A 240/A 240M; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.

UNS Designation B
Type C
Carbon D
Manganese
Phos phorus
Sulfur
Silicon
Chromium
Nickel
Molybdenum
Nitrogen
Copper
Other Element E,F
Austenitic (Chromium-Nickel) (Chromium-Manganese-Nickel)
S30100
301
0.15
2.00
0.045
0.030
1.00
16.0-18.0
6.0-8.0
- 0.10
-
-
S30103
301L G
0.03
2.00
0.045
0.030
1.00
16.0-18.0
6.0-8.0
-
0.20
-
-
S30153
301LN G
0.03
2.00
0.045
0.030
1.00
16.0-18.0
6.0-8.0
-
0.07-0.20
-
-
S30200
302
0.15
2.00
0.045
0.030
0.75
17.0-19.0
8.0-10.0
-
0.10
-
-
S30400
304
0.08
2.00
0.045
0.030
0.75
18.0-20.0
8.0-10.5
-
0.10
-
-
S30403
304L
0.03
2.00
0.045
0.030
0.75
18.0-20.0
8.0-12.0
-
0.10
-
-
S30409
304H
0.04-0.10
2.00
0.045
0.030
0.75
18.0-20.0
8.0-10.5
-
-
-
-  
S30415
-
0.04-0.06
0.80
0.045
0.030
1.00-2.00
18.0-19.0
9.0-10.0
-
0.12-0.18
-
Ce 0.03-0.08
S30451
304N
0.08
2.00
0.045
0.030
0.75
18.0-20.0
8.0-10.5
-
0.10-0.16
-
-
S30452
XM-21 J
0.08
2.00
0.045
0.030
0.75
18.0-20.0
8.0-10.5
-
0.16-0.30
-
-
S30453
304LN
0.03
2.00
0.045
0.030
0.75
18.0-20.0
8.0-12.0
-
0.10-0.16
-
-
S30500
305
0.12
2.00
0.045
0.030
0.75
17.0-19.0
10.5-13.0
-
-
-
-
S30600
-
0.018
2.00
0.020
0.020
3.7-4.3
17.0-18.5
14.0-15.5
-
-
0.50
-
S30601
-
0.015
0.50-0.80
0.030
0.013
5.0-5.6
17.0-18.0
17.0-18.0
-
0.05
0.35
-
S30615
-
0.16-0.24
2.00
0.030
0.030
3.2-4.0
17.0-19.5
13.5-16.0
-
-
-
AI 0.80-1.50
S30815
-
0.05-0.10
0.80 0.040
0.030
1.40-2.00
20.0-22.0
10.0-12.0
-
0.14-0.20
-
Ce 0.03-0.08
S30908
309 S
0.08
2.00 0.045
0.030
0.75
22.0-24.0
12.0-15.0
-
-
-
-
S30909
309H G
0.04-0.10
2.00
0.045
0.030
0.75
22.0-24.0
12.0-15.0
-
-
-
-
S30940
309Cb G
0.08
2.00
0.045
0.030
0.75
22.0-24.0
12.0-16.0
-
-
-
Cb 10xC min

1.10 max
S30941 309HCb G 0.04-0.10 2.00 0.045 0.030 0.75 22.0-24.0 12.0-16.0 - - - Cb 10xC min1.10 max
S31008 310S 0.08 2.00 0.045 0.030 1.50
24.0-26.0 19.0-22.0 - - - -
S31009 310H G 0.04-0.10 2.00 0.045 0.030 0.75 24.0-26.0 19.0-22.0 - - - -
S31040 310Cb G 0.08 2.00 0.045 0.030 1.50
24.0-26.0 19.0-22.0 - - - Cb 10xC min1.10 max
S31041 310HCb G 0.04-0.10 2.00 0.045 0.030 0.75 24.0-26.0 19.0-22.0 - - - Cb 10xC min1.10 max
S31050 310
MoLN G 		0.02 2.00 0.030 0.010 0.50
24.0-26.0 20.5-23.5 1.60-2.60 0.09-0.15 - -
S31060 0.05-0.10 1.00 0.040 0.030 0.50
22.0-24.0 10.0-12.5 0.18-0.25 Ce + La 0.025-0.070

B 0.001-0.010
S31254 0.02 1.00 0.030 0.010 0.80
19.5-20.5 17.5-18.5 6.00-6.50 0.18-0.22 0.50-1.00
S31266 0.03 2.0-4.0 0.035 0.020 1.00 23.0-25.0 21.0-24.0 5.20-6.20 0.35-0.60 1.00-2.50 W 1.50-2.50
S31277 0.02 3.00 0.030 0.010 0.50 20.5-23.0 26.0-28.0 6.50-8.00 0.30-0.40 0.50-1.50 -
S31600 316 0.08 2.00 0.045 0.030 0.75
16.0-18.0 10.0-14.0 2.00-3.00 0.10 - -
S31603 316L 0.03 2.00 0.045 0.030 0.75
16.0-18.0 10.0-14.0 2.00-3.00 0.10 - -
S31609 316H 0.04-0.10 2.00 0.045 0.030 0.75
16.0-18.0 10.0-14.0 2.00-3.00 0.10 - -
S31635 316TiG 0.08 2.00 0.045 0.030 0.75
16.0-18.0 10.0-14.0 2.00-3.00 0.10 - Ti 5 x (C+N) min, 0.70 max
S31640 316CbG 0.08 2.00 0.045 0.030 0.75 16.0-18.0 10.0-14.0 2.00-3.00 0.10 - Cb 10xC min1.10 max
S31651 316N 0.08 2.00 0.045 0.030 0.75 16.0-18.0 10.0-14.0 2.00-3.00 0.10-0.16 - -
S31653 316LN 0.03 2.00 0.045 0.030 0.75 16.0-18.0 10.0-14.0 2.00-3.00 0.10-0.16 - -
UNS Designation
Type A
Tensile Strength,min
Yield Strength,Bmin
Elongation in 2in. or 50mm
Hardness, max C
Cold Bend °D
ksi
MPa
ksi
MPa
min, %
Brinell
Rockwell B
S30100
301
75
515
30 205 40 217
95
not required
S30103
301L F
80 550
32 220 45 241 100 not required
S30153
301LN F
80 550
35 240 45 241 100 not required
S30200
302
75
515
30 205 40
201
92
not required
S30400
304
75
515
30 205 40
201
92
not required
S30403
304L
70 485
25 170 40
201
92
not required
S30409
304H
75 515 30 205 40
201
92
not required
S30415

87 600 42 290 40
217
95 not required
S30451
304N
80 550 35 240 30 217
95 not required
S30452
XM-21 K
90 620 50 345 30 241
100 not required
S30453
304LN
75 515 30 205 40
217
95 not required
S30500
305
70 485 25 170 40
183 88 not required
S30600

78 540 35 240 40
217
95
not required
S30601

78 540 37 255 30 217
95
not required
S30615

90
620
40
275
35
217
95
not required
S30815

87
600
45
310
40 217
95
not required
S30908
309S
75
515
30
205
40
217
95
not required
S30909 309H F 75 515 30 205 40 217 95 not required
S30940 309Cb F 75 515 30 205 40 217 95 not required
S30941 309HCb F 75 515 30 205 40 217 95 not required
S31008 310S 75 515 30 205 40 217 95 not required
S31009 310HF 75 515 30 205 40 217 95 not required
S31040 310CbF 75 515 30 205 40 217 95 not required
S31041 310HCbF 75 515 30 205 40 217 95 not required
S31050 310 MoLNF
t≤0.25in. 84 580 39 270 25 217 95 not required
t＞0.25in. 78 540 37 255 25 217 95 not required
S31060 87 600 41 280 40 217 95 not required
S31254Sheet and Strip
Plate
100
95
690
655
45
45 		310
310
35
35 		223
223 		96
96 		not required
S31266 109 750 61 420 35 217 95 not required
S31277 112 770 52 360 40 217 95 not required
S31600 316 75 515 30 205 40 217 95 not required
S31603 316L 70 485 25 170 40 217 95 not required
S31609 316H 75 515 30 205 40 217 95 not required
S31635 316TiF 75 515 30 205 40 217 95 not required
S31640 316CbF 75 515 30 205 30 217 95 not required
S31651 316N 80 550 35 240 35 217 95 not required
S31653 316LN 75 515 30 205 40 217 95 not required