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7402-4

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Japan JIS 7402-4 外科植入物用钴基合金 - 第4部分 : 锻造钴-铬-镍-钼铁合金 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 7402-4 / 7402-4
Category Grade Standard Region/Area Standard Content
Metals 7402-4 JIS T7402-4 Japan 外科植入物用钴基合金 - 第4部分 : 锻造钴-铬-镍-钼铁合金

Chemical composition(mass fraction)(wt.%) of the 7402-4

Element Min Max Similar
C - 0.1500 -
Mn 1.0000 2.5000 -
P - 0.0150 -
S - 0.0150 -
Si - 1.0000 -
Ni 14.0000 18.0000 -
Cr 18.5000 21.5000 -
Mo 6.5000 8.0000 -
Fe - - -
Co 39.0000 42.0000 -
Be - 0.0010 -

Mechanical Properties of steel grade 7402-4

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)
857 (≥) 248 (≥) 42 41 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 334

Physical Properties of steel grade 7402-4

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
43 - -     0.24 -  
457 472 - 11.3 234   -  
336 - 23 11.2   423 441

Heat Treatment of steel grade 7402-4

Heat treated : 1338°C - 1646°C

Technological Curves of steel grade 7402-4

Cross Reference Table (Equivalent Grade) of 7402-4

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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