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1J87

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1J91 1J88
#1J87

Description

China GBT 1J87 non-retentive alloy and 1J87 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: 1J87
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy 1J87 GBT China non-retentive alloy
1J87
1J88
1J89
1J90
1J91
1J87
1J88
1J89
1J90
1J91

Chemical composition(mass fraction)(wt.%) of the 1J87

C(％) Si(％) Mn(％) P(％) S(％) Ni(％) Mo(％) Nb(%) Fe(%)
0.03 ≤0.30 0.30-0.60 0.020 0.020 78.5-80.5 1.6-2.2 6.5-7.5 Bal

Mechanical Properties of steel grade 1J87

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)
234 (≥) 829 (≥) 42 24 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 324

Physical Properties of steel grade 1J87

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
14 - -     0.14 -  
936 529 - 23.3 222   -  
221 - 34 14.2   441 431

Heat Treatment of steel grade 1J87

Heat treated : 1285°C - 1834°C

Technological Curves of steel grade 1J87

Cross Reference Table (Equivalent Grade) of 1J87

Grade Standard Country Application
1J87 GBT China non-retentive alloy
1J87 GBT China non-retentive alloy
1J87 GBT China non-retentive alloy
1J91 1J88
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Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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