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20MnB4

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EU EN 20MnB4 钢棒，冷镦和冷挤压棒材和线材 - 第4部分：交货技术条件：淬火和回火钢。 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 20MnB4 / 20MnB4
Category Grade Standard Region/Area Standard Content
Metals 20MnB4 EN 10263-4 EU 钢棒，冷镦和冷挤压棒材和线材 - 第4部分：交货技术条件：淬火和回火钢。

Chemical composition(mass fraction)(wt.%) of the 20MnB4

Element Min Max Similar

Mechanical Properties of steel grade 20MnB4

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)
948 (≥) 683 (≥) 13 43 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 412

Physical Properties of steel grade 20MnB4

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
24 - -     0.24 -  
349 764 - 33.3 341   -  
436 - 23 22.2   314 333

Heat Treatment of steel grade 20MnB4

Heat treated : 1323°C - 1454°C

Technological Curves of steel grade 20MnB4

Cross Reference Table (Equivalent Grade) of 20MnB4

Grade Standard Country Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1
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