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GH 903

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China HB GH903 GH 903低膨胀合金环坯和环形件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: GH903 / GH 903
Category Grade Standard Region/Area Standard Content
Metals GH 903 HB 6574 China GH 903低膨胀合金环坯和环形件

Chemical composition(mass fraction)(wt.%) of the GH 903

Element Min Max Similar
Bi - 0.0001 -
Sb - 0.0025 -
Sn - 0.0012 -
As - 0.0250 -
Pb - 0.0010 -
P - 0.0150 -
S - 0.0150 -
Si - 0.2000 -
Mn - 0.2000 -
Fe - - -
B 0.0050 0.0100 -
Co 14.0000 17.0000 -
Ni 36.0000 39.0000 -
Nb 2.7000 4.0000 -
Ti 1.3500 1.7500 -
Al 0.7000 1.1500 -
C - 0.0500 -

Mechanical Properties of steel grade GH 903

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)
568 (≥) 541 (≥) 34 12 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 324

Physical Properties of steel grade GH 903

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
31 - -     0.13 -  
199 128 - 23.3 132   -  
448 - 44 21.2   433 411

Heat Treatment of steel grade GH 903

Heat treated : 1744°C - 1434°C

Technological Curves of steel grade GH 903

Cross Reference Table (Equivalent Grade) of GH 903

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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Jiangyou Longhai Special Steel Co.,Ltd.

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