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CHEMICAL COMPOSITION OF STAINLESS STEEL
Grade


AISI		 Chemical composition - Per cent

 Nearest
Equivalent specification
C
Max		 Mn
Max		 P
Max		 S
Max		 Si
Max		 Cr Ni MO other
element		 I.S En
201 0.15 5.50/7.50 0.06 0.030 1.0 16.0/18.0 3.5/5.5 - N-25max 10Cr 17 Mn6Ni4 En
202 0.15 7.50/10.0 0.06 0.030 1.0 17.0/19.0 4.0/6.0 - N-25max - -
301 0.15 2.0 max 0.045 0.040 1.0 16.0/18.0 6.0/8.0 - - 10Cr17
Ni7		  
302 0.15 2.0 0.045 0.030 1.0 17.0/19.0 8.0/10.0 - - 07Cr18
Ni9		 -
303 0.15 2.0 0.045 - 1.0 17.0/19.0 8.0/10.0 - - 15Cr18
Ni9		 En-58A
304 0.08 2.0 0.045 0.030 1.0 18.0/20.0 8.0/10.0 - - 04Cr18
Ni10		 En-58M
304L 0.030 2.0 0.045 0.030 1.0 18.0/20.0 8.0/10.0 - - 02Cr18
Ni11		 En-58E
308 0.08 2.0 0.040 0.030 1.0 10.0/21.0 10.0/12.0 - - - -
309 0.20 2.0 max 0.045 0.030 1.0 22.0/24.0 12.0/15.0 - - 20Cr24
Ni12		 -
309S 0.08 2.0 0.045 0.030 1.0 22.0/24.0 12.0/15.0 - - - -
310 0.20 2.0 0.045 0.030 1.50 24.0/26.0 19.0/22.0 - - 10Cr25
Ni12		 -
310S 0.08 2.0 0.045 0.030 1.50 24.0/26.0 19.0/22.0 - - - -
314 0.25 2.0 0.040 0.030 1.5 to 3 25.0/26.0 19.0/22.0 - - - -
316 0.08 2.0 0.045 0.030 1.0 16.0/18.0 10.0/14.0 2.0/3.0 - 04Cr17
Ni12
M02		 En58H
316L 0.030 2.0 0.045 0.030 1.0 16.0/18.0 10.0/14.0 2.0/3.0 - 03Cr17
Ni12
M02		 -
317 0.08 2.0 0.045 0.030 1.0 18.0/20.0 11.0/15.0 3.0/4.0 - - -
317L 0.030 2.0 0.045 0.030 1.0 18.0/20.0 11.0/15.0 3.0/4.0 - Tiy5 c min -
316TI 0.080 2.0 0.045 0.030 1.0 16/18.0 10.0/14.0 2.0/3.0 Ti5xCmin - -
321 0.08 2.0 0.045 0.030 1.0 17.0/19.0 9.0/12.0 - Ti5xCmin 04Cr18
Ni10
Ti20		 En-58C
347 0.08 2.0 0.045 0.30 1.0 17.0/19.0 9.0/12.0 - Nb/Ta10x
Cmin		 04Cr18
Ni10
Nb40		 En-58G
430 0.12 1.0 0.040 0.030 0.75 14.0/18.0 0.60 - - 07Cr17 En-60
446 0.20 1.50 max 0.040 0.030 1.0 23.0/27.0 0.60 max - N-25 Max - -
403 0.15 1.0 0.040 0.030 0.50 11.5/13.0 0.60 - - - -
410 0.15 1.0 0.040 0.030 1.00 11.5/13.5 0.60 - - 12Cr13 En58A
410S 0.08 1.0 0.040 0.030 1.0 11.5/13.5 0.60 max - - - -
414 0.15 1.0 max 0.040 0.030 1.0 11.5/13.5 1.25/2.50 - - - -
420 Over.15 1.0 0.040 0.030 1.00 12.0/14.0 0.60 - - 22Cr13 En56
C&D
431 .20 1.0 max 0.040 0.030 1.0 15.0/17.0 1.25/2.50 0.75 max - 15Cr16
Ni2		 En-57
440A 0.60/0.70 1.0 0.040 0.030 1.0 16/18     -    
440B 0.75 1.0 0.040 0.030 1.0 16.0/18.0 - 0.75 max - - -
  0.95               -    
440C 0.95 1.0 0.040 0.030 1.0 16/18 - 0.75 max - - -
  1.2               -    
446 0.20 1.50 0.040 0.030 1.0 23.0/210 -   - No. 25
Max

-

         

     

NOMINAL CHEMICAL COMPOSITION, % (not for specification purposes)
  NII C Mn Fe S Si Cu Cr Co Mo Ai TI others
Nickel200 99.5 0.08 0.18 0.2 0.005 0.18 0.13 - - - - - -
Nickel201 99.5 0.01 0.18 0.2 0.005 0.18 0.13 - - - - - -
Nickel205 99.5 0.08 0.18 0.10 0.004 0.08 0.08 - - - - 0.03 Mg.0.05
Nickel212 97.7 0.10 2.0 0.05 0.005 0.05 0.03 - - - - - -
Nickel222 99.5 0.01 0.02 0.04 0.0025 0.01 0.01 0.01 0.06 - 0.01 0.01 Mg<0.001
Nickel270 99.98 0.01 0.003 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 - - <0.001 Mg<0.001
MONEL
alloy 400		 63.0 mint 0.15 1.0 2.56
max		 0.024
Max		 0.5
max		 31.0 - - - - - -
MONEL
alloyk-500		 63.0 mint 0.15 1.5max 2.0
max		 0.010
max		 0.5 30.0 - - - 209 0.06 -
Cast MONEL alloy 63.0 mint 0.07 0.75 2.5
max		 0.02
max		 0.04
max		 30.0 0.10 - 0.20 0.05
max		 0.01 -
Pig (grade 0)               max - max   max -
Cast MONEL alloy 63.0 mint 0.03max 0.20
max		 2.5max 0.02
max		 0.04
max		 30.0 0.10 - 0.20 0.05
max		 0.01 -
pig (oxidised)               max - max   max -
 
INCONEL
alloy
625		 72.0 mint 0.15max 1.5max 8.0 0.015
max		 0.5
max		 0.5
max		 15.5 - - - -  
INCONEL
alloy
626		 60.5 0.10max 0.25 5.0max 0.015
max		 0.5
max		 - 21.5 - 9.0 0.25 0.25 NB + Ta
3.65
 
INCOLOY
ALLOY
800		 32.5 0.10
max		 1.5
max		 Bal. 0.015
max		 1.0
max		 0.75
max		 21.0 - - 0.38 0.38 -
INCOLOY
ALLOY
825		 42.0 0.05
max		 1.0
max		 Bal. 0.03
max		 0.5
max		 2.25 21.5 - 3.0 0.20
max		 0.9 -
INCOLOY
ALLOY
904		 32.5 0.025 0.25 Bal. 0.015 0.25 2.25 - 14.5 - 0.1 1.6 -
INCOLOY
ALLOY
DS		 37.0 0.1
max		 1.2 Bal. - 2.3 0.5
max		 18.0 - - - 0.20 -

PHYSICAL AND MECHANICAL PROPERTIES
  Density
kg/dm3		 Melting
range ˚c		 Specific heat at
20˚c
1/kg ˚c		 Thermal
conductivity
at 20˚c
Wm˚c		 Thermal
expansion
10-6/˚c
20-95˚c		 Electircal
resistivity
at 20˚c
microhm cm		 Tensile
strength
N/mm3		 HArdness
HV
Nickel 8.89 1435-1445 456 74.9 13.3 9.5 380-550 90-120
Nickel201 8.89 1435-1445 456 79.2 13.3 7.6 340-41 75-100
Nickel205 8.89 1435-1445 456 74.9 13.3 9.5 340 77
Nickel212 8.89 1435-1445 430 44.1 - 10.9 476 144
Nickel222 8.89 1435-1445 456 74.9 13.3 8.8 340 77
Nickel270 8.89 1445 460 85.7 13.3 7.5 340 80
 
MONEL alloy
400		 8.83 1300-1350 419 21.7 14.1 51.0 480-620 111-151
MONEL alloy
K-500		 8.46      1315-1350 4190 17.4 13.7 61.4 620-760 141-189
 
INCONEL alloy
600		 8.42 1370-1350 461 14.8 13.3 103 550-690 121-173
INCONEL alloy
626		 8.44 1290-1350 410 9.8 12.8 129 830-1040 146-247
 
INCOLOY alloy 800 7.95 1355-1385 502 11.7 14.2 99 520-700 121-188
INCOLOY alloy 825 8.14 1370-1400 441 10.9 14.0 113 590-730 121-183
INCOLOY alloy904 8.12 - 442 14.9 4.6 72 923 -
INCOLOY alloy DS 7.92 1330-1400 452 12.0 14.1 108 680 208