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Crucible Steel 21-12N (JIS SUH37) Martensitic Steel

Category Metal , Ferrous Metal , Austenitic , Stainless Steel
Manufacturer Crucible Steel
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Crucible Steel 21-12N (JIS SUH37) Martensitic Steel.pdf
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Material Notes:
Information provided by Crucible Specialty Metals.
Mechanical Properties Metric English Comments
Hardness, Brinell <= 248
<= 248
Hardness, Rockwell C <= 40
<= 40
Tensile Strength, Ultimate >= 785 MPa
>= 114000 psi
Tensile Strength, Yield >= 392.3 MPa
>= 56900 psi
Elongation at Break >= 35 %
>= 35 %
Reduction of Area >= 35 %
>= 35 %
Component Elements Properties Metric English Comments
Carbon, C 0.15 - 0.25 %
0.15 - 0.25 %
Chromium, Cr 20.5 - 22.5 %
20.5 - 22.5 %
Iron, Fe >= 62.35 %
>= 62.35 %
As Remainder
Manganese, Mn 1.0 - 1.6 %
1.0 - 1.6 %
Nickel, Ni 10 - 12 %
10 - 12 %
Nitrogen, N 0.15 - 0.30 %
0.15 - 0.30 %
Silicon, Si <= 1.0 %
<= 1.0 %
Descriptive Properties Value Comments
Heat Treatment, °C 1150-1200 W.Q.; 750-850 A.C.
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