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Description

UK B.S. 10/1a Steel for cold forged fasteners and similar components and 10/1a Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: 10/1a
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy 10/1a B.S. UK Steel for cold forged fasteners and similar components
3/1
3/2
5/1
5/2
Grade 7
9/0a
9/1a
9/2a
9/3a
9/3a

Chemical composition(mass fraction)(wt.%) of the 10/1a

C(%) Si(%) Mn(%) P(%) S(%) B(%)
0.32-0.39 0.40 0.70-1.00 0.035 0.035 0.0008-0.005

Mechanical Properties of steel grade 10/1a

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)
232 (≥) 174 (≥) 41 14 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 243

Physical Properties of steel grade 10/1a

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
33 - -     0.24 -  
966 376 - 33.3 341   -  
383 - 13 14.2   211 313

Heat Treatment of steel grade 10/1a

Heat treated : 1877°C - 1354°C

Technological Curves of steel grade 10/1a

Cross Reference Table (Equivalent Grade) of 10/1a

Grade Standard Country Application
10/1a B.S. UK Steel for cold forged fasteners and similar components

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