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2Cr21Ni12N

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5Cr21Mn9Ni4N 2Cr23Ni13
#2Cr21Ni12N

Description

China GB GB/T 1221 (1992) , GB/T 12773 (1991) , 2Cr21Ni12N Specialsteel Heat-resisting steel bars and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 2Cr21Ni12N
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel 2Cr21Ni12N Austenite GB China Heat-resisting steel bars

Chemical composition(mass fraction)(wt.%) of the 2Cr21Ni12N

C Si Mn P S Ni Cr N
0.15 -0.28 0.75 -1.25 1.00 -1.60 ≤0.35 ≤0.03 10.50 -12.50 20.00 -22.00 0.15 -0.30

Mechanical Properties of steel grade 2Cr21Ni12N

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
776 (≥) 316 (≥) 14 23 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 424

Physical Properties of steel grade 2Cr21Ni12N

Temperature
(°C)		 Modulus of elasticity
(GPa)		 Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)		 Specific thermal capacity
(J/kg·°C)		 Specific electrical resistivity
(Ω mm²/m)		 Density
(kg/dm³)		 Poisson’s coefficient, ν
33 - -     0.44 -  
783 287 - 21.3 311   -  
952 - 31 41.2   112 214

Heat Treatment of steel grade 2Cr21Ni12N

Heat treated : 1367°C - 1295°C

Technological Curves of steel grade 2Cr21Ni12N

Relevant standard of 2Cr21Ni12N

GB/T 1221 (1992) Heat-resisting steel bars GB-T-1221--(1992)--.pdf
GB/T 12773 (1991) Valve steel bars for internal combustion engines - Technical requirements GB-T-12773--(1991)-.pdf
5Cr21Mn9Ni4N 2Cr23Ni13
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Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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