ASTM - American Society for Testing and Materials AMS - Aerospace Material Specification
AISI - American Iron and Steel Institute IC - Investment Casting Institute
MIL - Military Specification SAE - Society of Automotive Engineers
ACI - Alloy Casting Institute IN - International Nickel
  QQ - Federal Specifications

 

Chromium-Nickel Stainless Steels
Alloy Specification Carbon Min-Max Manganese Min-Max Silicon Min-Max Chromium Min-Max Nickel Min-Max Molybdenum Min-Max Phosphorus Min-Max Sulfur Min-Max Iron Other Melting Range 0F
302 AMS 5358B .25 1.50 2.00 17.0 -19.0 8.0 -10.0 .75 .04 .03 Bal. Cu, .75 Max. 2550-2650
MIL-S-81591 IC 302 .15 2.00 1.00 17.0 -19.0 8.0 -10.0   .04 .03 Bal.   2550-2650
ASTM A-743 GR CF20 .20 1.50 2.00 18.0 -21.0 8.0 -11.0   .04 .04 Bal.   2550-2650
ACI-CF-20 .20 1.50 2.00 18.0 -21.0 8.0 -11.0   .04 .04 Bal.   2550-2650
IC CF20 .20 1.50 2.00 18.0 -21.0 8.0 -11.0   .04 .04 Bal.   2550-2650
302B ASTM A-297 GR HF .20- .40 2.00 2.00 18.0 -23.0 8.0 -12.0 .50 .04 .04 Bal.   2530-2630
ACI-HF .20- .40 2.00 2.00 18.0 -23.0 8.0 -12.0 .50 .04 .04 Bal.   2530-2630
303 AMS 5341 B .16 2.00 2.00 18.0 -21.0 9.0 -12.0 .75 .04 .15-.35 Bal. Cu, .75 Max. 2550-2650
MIL-S-81591 IC 303 a)
b)
.16 1.50 2.00 18.0 -21.0 9.0 -12.0 1.50 .17 .04 Bal. Cu, .50 Max.; Se, .20-.35 2550-2650
.40- .80 .04 .20-.40 Cu, .50 Max.
ACI-CF16F .16 1.50 2.00 18.0 -21.0 9.0 -12.0   .04 .04 Bal.   2550-2650
ASTM A-743 GR CF16F .16 1.50 2.00 18.0 -21.0 9.0 -12.0 1.50 .17 .04 Bal. Se, 0.20-0.35 2550-2650
ASTM A-743 GR CF16Fa .40- .80 .04 .20-.40  
IC CF-16F .16 1.50 2.00 18.0 -21.0 9.0 -12.0 .75 .04   Bal. Either: .20-.35 Se, 1.50 Mo or .40-.80 Mo, .20-.40 S 2550-2650
SAE-30303 (Discontinued) .15 2.00 1.00 17.0 -19.0 8.0 -10.0 .60 .20 .15 Bal.   2550-2650
304 AMS 5370C, AMS 5317C .05 1.00-2.00 0.75-1.50 18.0 -21.0 8.0 -11.0 .75 .04 .04 Bal. Cu, .75 Max. 2550-2650
MIL-S-81591 IC 304 .08 2.00 1.00 18.0 -20.0 8.0 -12.0   .04 .03 Bal.   2550-2650
MIL-S-81591 IC 304L .05 1.00-2.00 1.00 18.0 -21.0 8.0 -11.0 .50 .04 .03 Bal. Cu, .50 Max. 2550-2650
MIL-S-867A CL1 (Disc.) .08 1.50 2.00 18.0 -21.0 8.0 -11.0   .05 .05 Bal.   2550-2650
MIL-S-18262A CL1 (Disc.) .08 1.50 2.00 18.0 -21.0 8.0 -11.0   .045 .045 Bal. Co, .20 Max. 2550-2650
ASTM A-743 GR CF3,
ASTM A-744 GR CF3
.03 1.50 2.00 17.0 -21.0 8.0 -12.0   .04 .04 Bal.   2550-2650
ASTM A-743 GR CF8,
ASTM A-744 GR CF8
.08 1.50 2.00 18.0 -21.0 8.0 -11.0   .04 .04 Bal.   2550-2650
ASTM A-351 GR CF3, CF3A .03 1.50 2.00 17.0 -21.0 8.0 -12.0 .50 .04 .04 Bal.   2550-2650
ASTM A-351 GR CF8, CF8A .08 1.50 2.00 18.0 -21.0 8.0 -11.0 .50 .04 .04 Bal.   2550-2650
ACI-CF8 .08 1.50 2.00 18.0 -21.0 8.0 -11.0   .04 .04 Bal.   2550-2650
IC CF-3 .03 1.50 2.00 17.0 -21.0 8.0 -12.0   .04 .04 Bal.   2550-2650
IC CF-8 .08 1.50 2.00 18.0 -21.0 8.0 -11.0   .04 .04 Bal.   2550-2650
SAE 30304L (Discontinued) .03 2.00 1.00 18.0 -20.0 8.0 -12.0   .045 .03 Bal.   2550-2650
SAE 30304 (Discontinued) .08 2.00 1.00 18.0 -20.0 8.0 -10.5   .045 .03 Bal.   2550-2650
ASTM A-351 GR CF 10 .04- .10 1.50 2.00 18.0 -21.0 8.0 -11.0 .50 .04 .04 Bal.   2550-2650
308 ASTM A-297 GR HF,
ACI HF
.20- .40 2.00 2.00 18.0 -23.0 8.0 -12.0 .50 .04 .04 Bal.   2500-2600
SAE 30308 (Discontinued) .08 2.00 1.00 19.0 -21.0 10.0 -12.0

 

.045 .03 Bal.   2550-2650
309 ASTM A-743 GR CG-12 .12 1.50 2.00 20.0 -23.0 10.0 -13.0

 

.04 .04 Bal.

 

2550-2650

 

ASTM A-743 GR CH-20 .20 1.50 2.00 22.0 -26.0 12.0 -15.0

 

.04 .04 Bal.

 

2550-2650

 

ASTM A-297 GR HH .20- .50 2.00 2.00 24.0 -28.0 11.0 -14.0 .50 .04 .04 Bal.

 

2500-2600
ASTM A-567 GR HH-90 (Discontinued - 1987) .80-1.00 2.00 2.00 24.0 -28.0 11.0 -14.0 .50 .04 .04 Bal.

 

2500-2550
ASTM A-351 GR CH10 .10 1.50 2.00 22.0 -26.0 12.0 -15.0 .50 .04 .04 Bal.

 

2550-2650
ASTM A-351 GR CH20 .20 1.50 2.00 22.0 -26.0 12.0 -15.0

 

.04 .04 Bal.

 

2550-2650

 

ASTM A-351 GR HK30 .25- .35 1.50 1.75 23.0 -27.0 19.0 -22.0 .50 .04 .04 Bal.

 

2550-2650

 

ASTM A-351 GR HK40 .35 -.45 1.50 1.75 23.0 -27.0 19.0 -22.0 .50 .04 .04 Bal.

 

2550-2650

 

ASTM A-447 .20 -.45 2.50 1.75 23.00-28.00 10.00-14.00

 

.05 .05 Bal. N2, 0.20 Max. 2550-2650

 

ACI HH .20 -.50 2.00 2.00 24.0 -28.0 11.0 -14.0 .50 .04 .04 Bal.

 

2500-2600
ACI CH20
IC CH20
.20 1.50 2.00 22.0 -26.0 12.0 -15.0

 

.04 .04 Bal.

 

2550-2650

 

SAE 30309 (Discontinued) .20 2.00 1.00 22.0 -24.0 12.0 -15.0

 

.045 .03 Bal.

 

2550-2650

 

SAE 30309S (Discontinued) .08 2.00 1.00 22.0 -24.0 12.0 -15.0

 

.045 .03 Bal.

 

2500-2600
310 AMS 5365C .10- .18 2.00 .50 - 1.50 23.00-26.00 19.0 -22.0 .75 .04 .04 Bal. Cu, .75 Max. 2550-2650
AMS 5366C .18 2.00 .50-1.50 23.0 -26.0 19.0 -22.0 .75 .04 .03 Bal. Cu, .75 Max. 2550-2650
MIL-S-20150 CLA (Disc.) .30 .50-2.00 2.0 23.0 -27.0 19.0 -22.0   .05 .05 Bal.   2550-2650
MIL-S-81591 IC310 .25 2.00 1.50 24.0 -26.0 19.0 -22.0   .04 .03 Bal.   2550-2650
ASTM A-743 GR CK20 .20 2.00 2.00 23.0 -27.0 19.0 -22.0   .04 .04 Bal.   2550-2650
ASTM A-297 GR HK .20- .60 2.00 2.00 24.0 -28.0 18.0 -22.0 .50 .04 .04 Bal.   2500-2600
ASTM A-297 GR HL .20- .60 2.00 2.00 28.0 -32.0 18.0 -22.0 .50 .04 .04 Bal.   2500-2600
ASTM A-351 GR CK20 .20 1.50 1.75 23.0 -27.0 19.0 -22.0 .50 .04 .04 Bal.   2550-2650
ASTM A-567 GR HK-40 (Discontinued - 1987) .35- .45 2.00 2.00 24.0 -28.0 18.0 -22.0 .50 .04 .04 Bal. N2, .05-.15 2550-2600
ASTM A-567 GR HK-50 (Discontinued - 1987) .45- .55 2.00 2.00 24.0 -28.0 18.0 -22.0 .50 .04 .04 Bal. N2, .05-.15 2500-2550
ACI CK 20 .20 2.00 2.00 23.0 -27.0 19.0 -22.0   .04 .04 Bal.   2550-2650
ACI HL .20- .60 2.00 2.00 28.0 -32.0 18.0 -22.0 .50 .04 .04 Bal.   2500-2600
IC CK-20 .20 2.00 2.00 23.0 -27.0 19.0 -22.0   .04 .04 Bal.   2550-2650
SAE 30310 (Discontinued) .25 2.00 1.50 24.0 -26.0 19.0 -22.0   .045 .03 Bal.   2500-2650
SAE 30310S (Discontinued) .08 2.00 1.50 24.0 -26.0 19.0 -22.0   .045 .03 Bal.   2500-2600
311 ASTM A-297 GR HN, ACI HN, SAE 70311 .20- .50 2.00 2.00 19.0 -23.0 23.0 -27.0 .50 .04 .04 Bal.   2500-2600
312 ASTM A-743 GR CE30 .30 1.50 2.00 26.0 -30.0 8.0 -11.0   .04 .04 Bal.   2600-2700
ASTM A-297 GR HE .20- .50 2.00 2.00 26.0 -30.0 8.0 -11.0 .50 .04 .04 Bal.   2600-2700
316 AMS 5360E .15 2.00 .75 16.0 -18.0 12.0 -14.0 1.50-2.25 .04 .03 Bal. Cu, .75 Max. 2500-2550
AMS 5361D .15- .25 2.00 1.00 17.0 -20.0 12.0 -15.0 1.75-2.50 .04 .04 Bal. Cu, .75 Max. 2500-2550
MIL-S-867A CL III (Disc.) .08 1.50 2.00 18.0 -21.0 9.0 -12.0 2.00-3.00 .05 .05 Bal.   2500-2550
MIL-S-81591 IC 316 .08 2.00 1.00 16.0 -18.0 10.0 -14.0 2.00-3.00 .04 .03 Bal.   2500-2550
ASTM A-351 GR CF3M, CF3MA .03 1.50 1.50 17.0 -21.0 9.0 -13.0 2.00-3.00 .04 .04 Bal.   2500-2550
ASTM A-743 GR CF3M,
ASTM A-744 GR CF3M
.03 1.50 1.50 17.0 -21.0 9.0 -13.0 2.00-3.00 .04 .04 Bal.   2500-2550
ASTM A-743 GR CF8M,
ASTM A-744 GR CF8M
.08 1.50 2.00 18.0 -21.0 9.0 -12.0 2.00-3.00 .04 .04 Bal.   2500-2550
ASTM A-351 GR CF8M .08 1.50 1.50 18.0 -21.0 9.0 -12.0 2.00-3.00 .04 .04 Bal.   2500-2550
ACI CF3M .03 1.50 1.50 17.0 -21.0 9.0 -13.0 2.00-3.00 .04 .04 Bal.   2500-2550
IC CF3M .03 1.50 1.50 17.0 -21.0 9.0 -13.0 2.00-3.00 .04 .04 Bal.   2500-2550
ACI CF8M .08 1.50 2.00 18.0 -21.0 9.0 -12.0 2.00-3.00 .04 .04 Bal.   2500-2550
IC CF-8M .08 1.50 2.00 18.0 -21.0 9.0 -12.0 2.00-3.00 .04 .04 Bal.   2500-2550
316 SAE 30316 (Discontinued) .08 2.00 1.00 16.0 -18.0 10.0-14.0 2.00-3.00 .045 .03 Bal.   2500-2550
SAE 30316 L(Discontinued) .03 2.00 1.00 16.0 -18.0 10.0-14.0 2.00-3.00 .045 .03 Bal.   2500-2550
316 MOD. ASTM A-351 GR CF10M .04- .10 1.50 1.50 18.0 -21.0 9.0 -12.0 2.0 -3.0 .04 .04 Bal.   2500-2550
ASTM A-743 GR CF3MN
ASTM A-351 GR CF3MN
.03 1.50 1.50 17.0 -21.0 9.0 -13.0 2.0 -3.0 .04 .04 Bal. N2 ,.10-.20 2500-2550
IC 316F .08 1.50 2.00 18.0 -21.0 9.0 -12.0 2.0 -3.0 .04 .04 Bal. Either .20-.30 Se, or .20-.40 S 2500-2550
317 ASTM A-351 GR CG8M
ASTM A-743 GR CG8M
ASTM A-744 GR CG8M
ACI CG8M, SAE 60317
.08 1.50 1.50 18.0 -21.0 9.0 -13.0 3.00-4.00 .04 .04 Bal.   2500-2550
321 MIL-S-81591 IC 321
IC 321
.08 2.00 1.00 17.0 -19.0 9.0 -12.0   .04 .03 Bal. Ti, 5 X C Min. 2550-2600
327 ASTM A-297 GR HD .50 1.50 2.00 26.0 -30.0 4.0 -7.0 .50 .04 .04 Bal.   2500-2550
ACI HD, SAE 70327 .50 1.50 2.00 26.0 -30.0 4.0 -7.0 .50 .04 .04 Bal.   2500-2550
330 ASTM A-297 GR HT .35- .75 2.00 2.50 15.0 -19.0 33.0 -37.0 .50 .04 .04 Bal.   2400-2500
ACI HT, SAE 70330 .35- .75 2.00 2.50 15.0 -19.0 33.0 -37.0 .50 .04 .04 Bal.   2400-2500
ASTM A-351 GR HT30 .25- .35 2.00 2.50 13.0 -17.0 33.0 -37.0 .50 .04 .04 Bal.   2400-2500
ASTM A-567 GR HT50C
(Discontinued - 1987)
.40- .60 2.00 2.50 13.0 -17.0 33.0 -37.0 .50 .04 .04 Bal. Cb/Ta, .75-1.25 2500-2550
331 ASTM A-297 GR HU, ACI HU .35- .75 2.00 2.50 17.0 -21.0 37.0 -41.0 .50 .04 .04 Bal.   2400-2500
334 ASTM A-297 GR HW, ACI HW, SAE 70334 .35- .75 2.00 2.50 10.0 -14.0 58.0 -62.0 .50 .04 .04 Bal.   2300-2400
335 ASTM A-297 GR HX, ACI HX .35- .75 2.00 2.50 15.0 -19.0 64.0 -68.0 .50 .04 .04 Bal.   2300-2400
347 AMS 5362H .12 2.00 1.50 18.0 -19.5 10.0 -14.0 .75 .04 .03 Bal. Cu, .75 Max.; Cb/Ta, 10 x C-1.5 2550-2600
MIL-S-867A CL II .08 1.50 2.00 18.0 -21.0 9.0 -12.0   .05 .05 Bal. Cb/Ta, 10 x C Min., -1.1 2550-2600
AMS 5364B .08 2.00 1.50 18.0 -21.0 9.0 -12.0 .75 .04 .03 Bal. Cu, .75 Max.; Cb, 8 x C-1.0; Ta .05 Max. 2550-2600
MIL-S-81591 IC 347 .08 2.00 1.00

17.0 -19.5

9.0 -13.0   .04 .03 Bal. Cb/Ta, 10 x C-1.5 2550-2600
ASTM A-743 GR CF8C, ASTM A-744 GR CF8C .08 1.50 2.00 18.0 -21.0 9.0 -12.0   .04 .04 Bal. Cb/Ta, 8 x C-1.0 2550-2600
ASTM A-351 GR CF8C, ACI CF8C, SAE 60347 .08 1.50 2.00 18.0 -21.0 9.0 -12.0 .50 .04 .04 Bal. Cb/Ta, 8 x C-1.0 2550-2600
IC CF-8C .08 1.50 2.00 18.0 -21.0 9.0 -12.0   .04 .04 Bal. Cb, 8 x C-1.0 2500-2600
Misc. ASTM A-743 GR CA6N .06 .50 1.00 10.5 -12.5 6.0 -8.0   .02 .02 Bal.   2550-2625
ASTM A-352 CA6NM
ASTM A-356 CA6NM
.06 1.00 1.00 11.5 -14.0 3.5 -4.5 .40-1.0 .04 .03 Bal. Cu*, 0.50 Max.; W* , 0.10 Max.; V*, 0.03 Max.; Total*0.50 Max. 2700-2790
Misc. ASTM A-743 CA6NM .06 1.00 1.00 11.5 -14.0 3.5 - 4.5 .40-1.0 .04 .03 Bal.   2700-2790
ASTM A-297 HI .20- .50 2.00 2.00 26.0 -30.0 14.0 -18.0 .50 .04 .04 Bal.   2500-2550
ASTM A-297 HP .35- .75 2.00 2.50 24.0 -28.0 33.0 -37.0 .50 .04 .04 Bal.   2450-2550
ASTM A-351 GR CT15C .05- .15 .15-1.50 .50-1.50 19.0 -21.0 31.0 -34.0   .03 .03 Bal. Cb/Ta, .50-1.50 2500-2550
ASTM A-351 GR CN7M,
ASTM A-743 GR CN7M,
ASTM A-744 GR CN7M
.07 1.50 1.50 19.0 -22.0 27.5 -30.5 2.00-3.00 .04 .04 Bal. Cu, 3.0-4.0 2500-2550
ASTM A-743 GR CN7MS,
ASTM A-744 GR CN7MS
.07 1.00 2.50-3.50 18.0 -20.0 22.0 -25.0 2.50-3.00 .04 .03 Bal. Cu, 1.5-2.0 2450-2550
ASTM A-743 GR CN3M .03 2.00 1.0 20.0 -22.0 23.0 -27.0 4.5 -5.5 .03 .03 Bal.   2500-2550
ASTM A-351 GR CF10MC .10 1.50 1.50 15.0 -18.0 13.0 -16.0 1.75-2.25 .04 .04 Bal. Cb/Ta, 10 x C Min., 1.20 Max. 2500-2550
ASTM A-567 GR HI50C (Discontinued 1987) .45- .55 2.00 2.00 26.0 -30.0 14.0 -18.0 .50 .04 .04 Bal. Cb/Ta, .75-1.25; N2, .10-.15 2500-2550
IN 864/856 .15 1.50 2.3 -3.0 17.0 -19.0 10.5 -12.5       Bal. B, .23-.30 2275-2350
AMS 5369C .28- .35 .75-1.50 1.00 18.00-11.00 8.00-11.00 1.00-1.75 .04 .04 Bal. W, 1.00-1.75, Ti, .15-.50 Cb/Ta, .30-.70; Cu, .50 Max. 2550-2650
Misc. ASTM A-351 GR CG 6MMN
ASTM A-743 GR CG 6MMN
.06 4.00-6.00 1.00 20.50-23.50 11.50-13.50 1.50-3.00 .040 .030 Bal. Cb/Ta, .10-.30; N2, .20-.40; V, .10-.30 2550-2650
ASTM A-351 GR CF-10S MnN
ASTM A-743 GR CF-10S MnN
.10 7.00-9.00 3.50-4.50 16.0-18.0 8.0-9.0   .060 .030 Bal. N2, -0.08-0.18  
ASTM A-743 GR CN3MN
ASTMA-744 GR CN3MN
.03 2.00 1.00 20.0-22.0 23.50-25.50 6.0-7.0 .040 .010   Cu, .75 Max.; N2, 0.18-0.26 2440-2530
ASTM A-351 GR CK3MCuN
ASTM A-743 GR CK3MCuN
ASTM A-744 GR CK3MCuN
.025 1.20 1.00 19.5-20.5 17.5-19.5 6.0-7.0

.045

.010 Bal. N2, 0.18-0.24;
Cu, 0.50-1.00
2450-2550
ASTM A-743GR CA-28MWV .20-.28 .50-1.00 1.00 11.0-12.5 0.50-1.00 0.90-1.25 .030 .030 Bal. W, 0.90-1.25
V, 0.20-0.30
 
Duplex Alloy ASTM A-890 GR 1-A CD4MCu .04 1.00 1.00 24.5-26.5 4.75-6.00 1.75-2.25 .040 .040 Bal. Cu, 2.75-3.25 2630-2680
ASTM A-890 GR 2-A
ASTM A-351 GRCE8MN
.08 1.00 1.50 22.5-25.5 8.00-11.00 3.00-4.50 .040 .040 Bal. N2, 0.10-0.30  
ASTM A-890 GR 3-A CD6MN .06 1.00 1.00 24.0-27.0 4.00-6.00 1.75-2.50 .040 .040 Bal. N2, 0.15-0.25  
ASTM A-890 GR 4-A CD3MN .03 1.50 1.00 21.0-23.5 4.5-6.5 2.5-3.5 .040 .020 Bal. Cu, 1.00 Max.;
N2, 0.10-0.30
2630-2680
ASTM A-890 GR 5-A CE3MN .03 1.50 1.00 24.0-26.0 6.0-8.0 4.0-5.0 .040 .040 Bal. N2, 0.10-0.30  
ASTM A-890 GR 6-A CD3MWCuN .03 1.00 1.00 24.0-26.0 6.5-8.5 3.0-4.0 .030 .025 Bal. Cu, 0.5-1.0;
W, 0.5-1.0; N2, 0.20-0.30
 
ASTM A-890 GR 1-B CD4MCuN .04 1.00 1.00 24.5-26.5 4.7-6.0 1.70-2.30 .040 .040   Cu, 2.7-3.3;
N2, 0.10-0.25
 
410 MIL-S-81591 IC 410 .05- .15 1.00 1.00 11.5 -13.5 .50 .50 .04 .03 Bal. Cu, .50 Max. 2700-2790
AMS 5350 G .05- .15 1.00 1.00 11.5 -13.5 .50 .50 .04 .03 Bal. Cu, .50 Max.; Sn, .05 Max.; Al, .05 Max. 2700-2790
MIL-S-16993 CL I (Disc.) .15 1.00 1.50 11.5 -14.0 1.00 .50 .05 .05 Bal.   2700-2790
MIL-S-16993 CL II (Disc.) .15 1.00 .50 11.5 -14.0 .65-1.00 .50- .70 .05 .05 Bal.   2700-2790
ASTM A-487 GR CA15 .15 1.00 1.50 11.5 -14.0 1.00 .50 .04 .04 Bal. Cu*, .50 Max.; W*, .10 Max.; V*.05 Max.; Total Unspec. * .50 Max. 2700-2790
IC CA-15 .05- .15 1.00 1.50 11.5 -14.0 1.00 .50 .04 .04 Bal.   2700-2790
AMS 5351 E .15 1.00 1.50 11.5 -14.0 1.00 .50 .04 .03 Bal. Al, .05 Max.; Cu, .50 Max.; Sn, .05 Max. 2700-2790
ASTM A-217 GR CA15,
ASTM A-743 GR CA15,
ACI CA15, SAE 60410
.15 1.00 1.50 11.5 -14.0 1.00 .50 .04 .04 Bal.   2700-2790
410 MOD. ASTM A-487 GR CA6NM
ASTM A-743 GR CA6NM
.06 1.00 1.00 11.5 -14.0 3.50-4.50 .40- 1.00 .04 .03 Bal. Cu*, .50 Max.; W*, .10 Max.; V*.05 Max.; Total Unspec. * .50 Max. 2700-2790
ASTM A-487 GR CA15M
ASTM A-743 GR CA15M
.15 1.00 .65 11.5 -14.0 1.00 .15- 1.00 .04 .04 Bal. Cu*, .50 Max.; W*, .10 Max.; V*.05 Max.; Total Unspec. * .50 Max. 2700-2790