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20 Mn 5

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EU EN 20Mn5 一般工程用开模钢锻件 - 第2部分：非合金优质钢和特殊钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 20Mn5 / 20 Mn 5
Category Grade Standard Region/Area Standard Content
Metals 20 Mn 5 EN 10250-2 EU 一般工程用开模钢锻件 - 第2部分：非合金优质钢和特殊钢

Chemical composition(mass fraction)(wt.%) of the 20 Mn 5

Element Min Max Similar
Mo - 0.1000 -
Ni - 0.4000 -
Cr - 0.4000 -
P - 0.0350 -
S - 0.0350 -
Mn 1.0000 1.5000 -
Si - 0.4000 -
C 0.1700 0.2300 -
C 0.1700 0.2300 -
Mn 1.0000 1.5000 -
P - 0.0300 -
S - 0.0350 -
Si - 0.4000 -
Ni - 0.4000 -
Cr - 0.4000 -
Mo - 0.1000 -
Al 0.0200 - -
Cr+Mo+Ni - 0.6300 -
Si - 0.4000 -
S - 0.0350 -
P - 0.0350 -
Ni - 0.4000 -
Mo - 0.1000 -
Mn 1.0000 1.5000 -
Cr+Mo+Ni - 0.6300 -
Cr - 0.4000 -
C 0.1700 0.2300 -
Al 0.0200 - -

Mechanical Properties of steel grade 20 Mn 5

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)
949 (≥) 445 (≥) 44 34 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

Physical Properties of steel grade 20 Mn 5

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
12 - -     0.44 -  
647 477 - 12.3 133   -  
244 - 41 42.2   341 323

Heat Treatment of steel grade 20 Mn 5

Heat treated : 1172°C - 1583°C

Technological Curves of steel grade 20 Mn 5

Cross Reference Table (Equivalent Grade) of 20 Mn 5

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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