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7Cr17

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1Cr17Ni2 8Cr17
#7Cr17

Description

China GB GB/T 1220 (1992) , GB/T 3280 (2007) , GB/T 4237 (1992) , GB/T 4239 (1991), GB/T 4356 (2002) , 7Cr17 Specialsteel Stainless steel bars and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 7Cr17
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel 7Cr17 Martensite GB China Stainless steel bars

Chemical composition(mass fraction)(wt.%) of the 7Cr17

C Si Mn Ni Cr Mo
0.60 -0.75 ≤1.00 ≤1.00 ≤0.60 16.00 -18.00 ≤0.75

Mechanical Properties of steel grade 7Cr17

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)
112 (≥) 292 (≥) 44 42 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 311

Physical Properties of steel grade 7Cr17

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
44 - -     0.43 -  
987 559 - 14.3 211   -  
338 - 31 23.2   332 121

Heat Treatment of steel grade 7Cr17

Heat treated : 1254°C - 1275°C

Technological Curves of steel grade 7Cr17

Cross Reference Table (Equivalent Grade) of 7Cr17

Grade Standard Country Application
7Cr17
7Cr17
7Cr17

Relevant standard of 7Cr17

GB/T 1220 (1992) Stainless steel bars GB-T-1220--(1992)-.pdf
GB/T 3280 (2007) Cold rolled stainless steel sheets and plates GB-T-3280--(2007)-.pdf
GB/T 4237 (1992) Hot rolled stainless steel sheets and plates GB-T-4237--(1992)-.pdf
GB/T 4239 (1991) Cold rolled stainless steel and heat resisting steel strips GB-T-4239--(1991).pdf
GB/T 4356 (2002) Stainless steel wire rods GB-T-4356--(2002)-.pdf
1Cr17Ni2 8Cr17
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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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