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28MnB

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China 舞钢Q/WTB 28MnB 28MnB钢板技术条件及生产工艺方案 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 28MnB / 28MnB
Category Grade Standard Region/Area Standard Content
Metals 28MnB WKZ 508 China 28MnB钢板技术条件及生产工艺方案

Chemical composition(mass fraction)(wt.%) of the 28MnB

Element Min Max Similar
B 0.0010 0.0030 -
S - 0.0200 -
P - 0.0250 -
Mn 1.2000 1.6000 -
Si 0.4000 0.8000 -
C 0.2400 0.3200 -

Mechanical Properties of steel grade 28MnB

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)
944 (≥) 348 (≥) 22 22 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 434

Physical Properties of steel grade 28MnB

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 - -     0.44 -  
937 456 - 34.3 144   -  
525 - 23 23.2   122 413

Heat Treatment of steel grade 28MnB

Heat treated : 1717°C - 1833°C

Technological Curves of steel grade 28MnB

Cross Reference Table (Equivalent Grade) of 28MnB

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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