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1.4903

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EU EN 1.4903 承压钢锻件 - 第2部分：规定高温性能的铁素体和马氏体钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 1.4903 / 1.4903
Category Grade Standard Region/Area Standard Content
Metals 1.4903 EN 10222-2 EU 承压钢锻件 - 第2部分：规定高温性能的铁素体和马氏体钢

Chemical composition(mass fraction)(wt.%) of the 1.4903

Element Min Max Similar
V 0.1800 0.2500 -
Si - 0.5000 -
S - 0.0150 -
P - 0.0250 -
Ni - 0.4000 -
Nb 0.0600 0.1000 -
N 0.0300 0.0700 -
Mo 0.8500 1.0500 -
Mn 0.3000 0.6000 -
Cr 8.0000 9.5000 -
C 0.0800 0.1200 -
Al - 0.0300 -
V 0.1800 0.2500 -
Si 0.2000 0.5000 -
S - 0.0100 -
P - 0.0200 -
Ni - 0.4000 -
Nb 0.0600 0.1000 -
N 0.0300 0.0700 -
Mo 0.8500 1.0500 -
Mn 0.3000 0.6000 -
Cu - 0.3000 -
Cr 8.0000 9.5000 -
C 0.8000 0.1200 -
Al - 0.0400 -

Mechanical Properties of steel grade 1.4903

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)
485 (≥) 323 (≥) 22 33 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 122

Physical Properties of steel grade 1.4903

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
34 - -     0.11 -  
156 368 - 34.3 144   -  
445 - 34 22.2   441 431

Heat Treatment of steel grade 1.4903

Heat treated : 1986°C - 1941°C

Technological Curves of steel grade 1.4903

Cross Reference Table (Equivalent Grade) of 1.4903

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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