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B20H

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China 宝钢Q/BQB B20H 塑模用钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: B20H / B20H
Category Grade Standard Region/Area Standard Content
Metals B20H Q/BQB 135 China 塑模用钢

Chemical composition(mass fraction)(wt.%) of the B20H

Element Min Max Similar
Mo 0.0800 0.5000 -
Cr 0.9000 1.6000 -
S - 0.0150 -
P - 0.0200 -
Mn 0.9000 1.7000 -
Si 0.2500 0.7000 -
C 0.2900 0.3800 -
V 0.0400 0.2000 -
Mo 0.0800 0.5000 -
Cr 0.9000 1.6000 -
P - 0.0200 -
S - 0.0150 -
Mn 0.9000 1.7000 -
Si 0.2500 0.7000 -
C 0.2900 0.3800 -

Mechanical Properties of steel grade B20H

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)
437 (≥) 691 (≥) 33 13 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical Properties of steel grade B20H

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
43 - -     0.14 -  
191 586 - 44.3 234   -  
127 - 44 23.2   113 312

Heat Treatment of steel grade B20H

Heat treated : 1747°C - 1661°C

Technological Curves of steel grade B20H

Cross Reference Table (Equivalent Grade) of B20H

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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Jiangyou Longhai Special Steel Co.,Ltd.

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