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9/0a

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Grade 7 9/1a
#9-0a

Description

UK B.S. 9/0a Steel for cold forged fasteners and similar components and 9/0a Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: 9/0a
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy 9/0a B.S. UK Steel for cold forged fasteners and similar components
1/1
1/2
1/3
2/1
2/2
3/1
3/2
5/1
5/2
Grade 7

Chemical composition(mass fraction)(wt.%) of the 9/0a

C(％) Si(％) Mn(％) P(％) S(％) B(%)
0.15-0.20 0.40 0.60-0.90 0.035 0.035 0.0008-0.005

Mechanical Properties of steel grade 9/0a

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)
158 (≥) 897 (≥) 24 13 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 433

Physical Properties of steel grade 9/0a

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
12 - -     0.24 -  
227 113 - 12.3 312   -  
313 - 14 31.2   211 343

Heat Treatment of steel grade 9/0a

Heat treated : 1298°C - 1389°C

Technological Curves of steel grade 9/0a

Cross Reference Table (Equivalent Grade) of 9/0a

Grade Standard Country Application
9/0a B.S. UK Steel for cold forged fasteners and similar components
Grade 7 9/1a
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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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