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25MnB

Favorite Datasheet

China GB 25MnB 合金结构钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 25MnB / 25MnB
Category Grade Standard Region/Area Standard Content
Metals 25MnB GB/T 3077 China 合金结构钢

Chemical composition(mass fraction)(wt.%) of the 25MnB

Element Min Max Similar
B 0.0008 0.0035 -
Mn 1.0000 1.4000 -
Si 0.1700 0.3700 -
C 0.2300 0.2800 -

Mechanical Properties of steel grade 25MnB

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)
155 (≥) 173 (≥) 23 23 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 422

Physical Properties of steel grade 25MnB

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
21 - -     0.23 -  
729 551 - 41.3 242   -  
668 - 22 13.2   314 242

Heat Treatment of steel grade 25MnB

Heat treated : 1992°C - 1587°C

Technological Curves of steel grade 25MnB

Cross Reference Table (Equivalent Grade) of 25MnB

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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