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CHEMICAL COMPOSITION                    MECHANICAL COMPOSITION
Grade Designation Chemical Composition Per Cent Nearest Environment Specification
AISI C Max Mn Max P Max S Max SI Max Cr N MO Other element I.S En
201 0.15 5.50/7.50 0.06 0.03 1 16.0/18.0 3.5/5.5 - N-25 Max I.S -
202 0.15 7.50/10.0 0.06 0.03 1 17.0/19.0 4.0/6.0 - N-25 Max - -
301 0.15 2.0 max 0.045 0.03 1 16.0/18.0 6.0/8.0 - - 10Cr17Ni7 -
302 0.15 2 0.045 0.03 1 17.0/19.0 8.0/10.0 - - 07Cr18Ni9 En-58A
303 0.15 2 0.045 - 1 17.0/19.0 8.0/10.0 - - 15Cr18Ni9 En-58M
304 0.08 2 0.045 0.03 1 18.0/20.0 8.0/10.0 - - 04Cr18Ni10 En-58E
304L 0.03 2 0.045 0.03 1 18.0/20.0 8.0/10.0 - - 02Cr18Ni11 -
308 0.08 2 0.04 0.03 1 10.0/21.0 10.0/12.0 - - - -
309 0.2 2 0.045 0.03 1 22.0/24.0 12.0/15.0 - - 20Cr24Ni12 -
309S 0.08 2.0 max 0.045 0.03 1.5 22.0/24.0 12.0/15.0 - - - -
310 0.25 2 0.045 0.03 1.5 to 3 24.0/26.0 19.0/22.0 - - 10Cr25Ni12 -
310S 0.08 2 0.045 0.03 1 24.0/26.0 19.0/22.0 - - - -
314 0.25 2 0.04 0.03 1 25.0/26.0 19.0/22.0 - - - -
316 0.08 2 0.045 0.03 1 16.0/18.0 10.0/14.0 2.0/3.0 - 04Cr17Ni12M02 En-58H
316L 0.03 2 0.045 0.03 1 16.0/18.0 10.0/14.0 2.0/3.0 - 03Cr17Ni12M03 -
317 0.08 2 0.045 0.03 1 18.0/20.0 11.0/15.0 3.0/4.0 - 04Cr17Ni12M04 -
317L 0.03 2 0.045 0.03 1 18.0/20.0 11.0/15.0 3.0/4.0 - Tly5cmin -
316TI 0.08 2 0.045 0.03 1 16.0/18.0 10.0/14.0 2.0/3.0 Ti5 x Cmin - -
321 0.08 2 0.045 0.03 1 17.0/19.0 9.0/12.0 - Ti5 x Cmin 04Cr18Ni10Ti20 En-58C
347 0.08 2 0.045 0.03 1 17.0/19.0 9.0/12.0 - Nb/Ta10 x Cmin 04Cr18Ni10Nb-40 En-58C
430 0.12 1 0.04 0.03 0.75 14.0/18.0 0.6 - - 07Cr17 En-60
446 0.2 1.50 max 0.04 0.03 1 23.0/27.0 0.60 Max - N-25 Max - -
403 0.15 1 0.04 0.03 0.5 11.5/13.5 0.6 - - - -
410 0.15 1 0.04 0.03 1 11.5/13.5 0.6 - - 12Cr13 En-58A
410S 0.08 1 0.04 0.03 1 11.5/13.5 0.60 Max - - - -
414 0.15 1.0 max 0.04 0.03 1 11.5/13.5 1.25/2.50 0.75 Max - - -
420 Over.15 1 0.04 0.03 1 12.0/14.0 0.6 - - 22Cr13 En-56C&D
431 0.2 1.0 max 0.04 0.03 1 15.0/17.0 1.25/2.50 0.75 Max - 15Cr16Ni2 En-57
440 A 0.60/0.70 1 0.04 0.03 1 16.0/18.0 - - - - -
440B 0.75 1 0.04 0.03 1 16.0/18.0 - 0.75 Max - - -
- 0.95 - - - - 16.0/18.0 - - - - -
440 C 0.95 1 0.03 0.03 1 23.0/27.0 - - - No25 Max -
- 1.2 - - - - - - - - - -
446 0.2 1.5 0.03 0.03 1 - - - - - -

 


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