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Chemical compositions should accord with the regulation of the form :
NO. Steel grade Chemical compositions %
C Si Mn P S Ni Cr Mo N Other
1 1Cr18Ni9 ≒0.15 ≒1.00 ≒2.00 ≒0.035 ≒0.030 8.0‵10 17‵19. - - -
2 1Cr18Ni9Ti ≒0.12 ≒1.00 ≒2.00 ≒0.035 ≒0.030 8‵11.0 17‵19. - - 5(C%-0.02)‵0.08%
3 1Cr17Ni7 ≒0.15 ≒1.00 ≒2.00 ≒0.035 ≒0.030 6‵8.0 16‵18. - - -
4 0Cr18Ni10
Ti		 ﹛ ﹛ ﹛ ﹛ ≒0.030 9‵12.0 17‵19. - - Ti≡5℅C%
5 0Cr17Ni12 ﹛ ﹛ ﹛ ﹛ ≒0.030 10‵14. 16‵18. 2‵3 - -
6 00Cr17Ni
14MO2		 ﹛ ﹛ ﹛ ﹛ ≒0.030 12‵15. 16‵18. 2‵3 - -
7 00Cr19
Ni10		 ﹛ ﹛ ﹛ ﹛ ≒0.030 8‵12.0 18‵20. - - -
8 0Cr18Ni
16Mo5		 ≒0.045 ≒1.00 ≒2.00 ≒0.035 ≒0.030 15‵17.0 16‵18.0 4‵6 - -
9 0Cr18Ni
16Mo6		 ≒0.045 ≒1.00 ≒2.00 ≒0.035 ≒0.030 15‵17.0 16‵18.0 4‵6 - -
10 C15                    

The mechanics performance after dissolve and deal with carelessly should accord with the regulation of the form:
NO. Trade mark Pull test The hardness testing
Surrender  intensity
考0.2MPa
Not smaller than		 Tensile strength
考bMPa
Not smaller than		 Extending rate考5%
Not smaller than		 HRB
Not max than		 HV
Not max than
1 1Cr18Ni9 205 520 40 90 200
2 1Cr18Ni9Ti 205 540 40 90 200
3 1Cr17Ni7 205 520 40 90 200
4 0Cr18Ni10Ti 205 520 40 90 200
5 0Cr17Ni12Mo2 205 520 40 90 200
6 00Cr17Ni14Mo2 175 480 40 90 200
7 00Cr19Ni10 175 480 40 90 200

Harden by different cold-working mechanics performance of steel band that state deliver should accord with the regulation of the form:
NO. Trade mark State symbol Pull test
Surrender the intensity
考0.2MPa
Not small than		 Tensile strength考b MPa
Not small than		 Extending rate 考5% Not smaller than
Thickness ˉ0.4 Thickness
≡0.4‵0.8		 Thickness ˇ0.8
1 1Cr17Ni7 DY 510 865 25 25 25
BY 755 1030 9 10 10
Y 930 1205 3 5 7
TY 960 1275 3 4 5
2 1Cr18Ni9 BY ﹛ 785 20
Y ﹛ 980 10
TY ﹛ 1130 5
3 1Cr18Ni9Ti BY ﹛ 735 20
Y ﹛ 885 7