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Description

China GBT 20Cr China structural steel and alloy steel and 20Cr Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: 20Cr
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel 20Cr GBT China China structural steel and alloy steel
40MnB
45MnB
20MnMoB
15MnVB
20MnVB
40MnVB
20MnTiB
25MnRiVRE
15Cr
15CrA

Chemical composition(mass fraction)(wt.%) of the 20Cr

C(%) Si(%) Mn(%) Cr(%)
0.18-0.24 0.17-0.37 0.50-0.80 0.70-1.00

Mechanical Properties of steel grade 20Cr

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)
523 (≥) 397 (≥) 22 32 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 443

Physical Properties of steel grade 20Cr

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
32 - -     0.21 -  
658 437 - 24.3 311   -  
758 - 44 34.2   442 233

Heat Treatment of steel grade 20Cr

Heat treated : 1818°C - 1999°C

Technological Curves of steel grade 20Cr

Cross Reference Table (Equivalent Grade) of 20Cr

Grade Standard Country Application
X220CrVMo12-2 DIN Germany Cold working alloy tool steel
X20CrMo13 DIN Germany Hot working alloy tool steel
X20Cr13 AFNOR France Carbide for cutting tools
X20Cr13 AFNOR France Carbide for cutting tools
X20Cr13 AFNOR France Carbide for cutting tools
X20Cr13 AFNOR France Carbide for cutting tools
X20CrMoWV12-1 DIN Germany The high-temperature and high-strength steel
X20Cr13(AFNOR) AFNOR France Martensite And Precipitation Hardening
20CrMnVTiB4-10 AFNOR France Fasteners with stainless steel and nickel alloy for high temperature and low temperature (NF-EN 10269(1999))
20Cr ASTM USA
20Cr-29Ni+Mo+Cu AISI USA
20Cr-18Ni+Mo+Cu AISI USA
20Cr-29Ni+Mo+Cu AISI USA
20Cr-18Ni+Mo+Cu AISI USA
20Cr-25Ni AISI USA
ISO X20Cr13 ISO ISO ISO standard thermal deformation of stainless steel
ISO X20CrMoNiNbV11 1 ISO ISO High temperature bainite and martensite steel ISO standard internal combustion engine
20Cr25Ni20 GBT China Stainless steel bars
20Cr13Mn9Ni4 GBT China Stainless steel bars
20Cr15Mn15Ni2N GBT China Stainless steel bars

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