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18H2N4MA

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Russia GOST 18H2N4MA Structural alloy steel bars. Specifications and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 18H2N4MA / 18H2N4MA
Category Grade Standard Region/Area Standard Content
Metals 18H2N4MA GOST 4543 Russia Structural alloy steel bars. Specifications

Chemical composition(mass fraction)(wt.%) of the 18H2N4MA

Element Min Max Similar
Si 0.1700 0.3700 -
Ni 4.0000 4.4000 -
Mo 0.3000 0.4000 -
Mn 0.2500 0.5500 -
Cr 1.3500 1.6500 -
C 0.1400 0.2000 -

Mechanical Properties of steel grade 18H2N4MA

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)
622 (≥) 547 (≥) 14 12 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical Properties of steel grade 18H2N4MA

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
22 - -     0.11 -  
462 297 - 14.3 143   -  
892 - 11 11.2   113 144

Heat Treatment of steel grade 18H2N4MA

Heat treated : 1726°C - 1596°C

Technological Curves of steel grade 18H2N4MA

Cross Reference Table (Equivalent Grade) of 18H2N4MA

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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