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1J88

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1J87 1J89
#1J88

Description

China GBT 1J88 non-retentive alloy and 1J88 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

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

Chemical composition(mass fraction)(wt.%) of the 1J88

C(％) Si(％) Mn(％) P(％) S(％) Ni(％) Nb(%) Fe(%)
0.03 ≤0.30 ≤0.60 0.020 0.020 79.5-80.5 7.5-9.0 Bal

Mechanical Properties of steel grade 1J88

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)
717 (≥) 543 (≥) 33 14 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 341

Physical Properties of steel grade 1J88

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
42 - -     0.14 -  
263 594 - 43.3 413   -  
456 - 34 34.2   244 124

Heat Treatment of steel grade 1J88

Heat treated : 1935°C - 1594°C

Technological Curves of steel grade 1J88

Cross Reference Table (Equivalent Grade) of 1J88

Grade Standard Country Application
1J88 GBT China non-retentive alloy
1J88 GBT China non-retentive alloy
1J88 GBT China non-retentive alloy
1J87 1J89
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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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