9/1a

BS 3111-1:1987 - Steel for cold forged fasteners and similar components-Part 1: Specification for carbon and low alloy steel wire

This page provides 9/1a datasheet, 9/1a mechanical properties, chemical element 9/1a, technical specifications of 9/1a steel material properties. 9/1a performance specifications.

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

Chemical composition(mass fraction)(wt.%) of the 9/1a

C(%) Si(%) Mn(%) P(%) S(%) B(%)
0.17-0.23 0.40 0.75-0.95 0.035 0.035 0.0008-0.005

Mechanical properties / Mechanische Eigenschaften / Caracteristiques mecaniques of grade 9/1a

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)
339 (≥) 132 (≥) 13 12 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 131
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
23 - -     0.11 -  
839 371 - 14.3 232   -  
689 - 33 11.2   231 314
Heat treated : 1298°C - 1873°C
Directory is being updated.
The material does not have direct Metallography properties.
Directory is being updated.
The material does not have direct Metallography properties.
Directory is being updated.
Cross Reference Table(Equivalent Grade)
Grade Standard Country Application
Q195 GBT China
Engineering and welding
UNS G10190 UNS USA
General use carbon steel bar
ASTM 1019 ASTM USA
General use carbon steel bar
T9 China
Carbon tool steel
9SiCr China
Alloy tool steel - Measuring tool steel cutting tools
9Cr2 China
Alloy tool steel - Measuring tool steel cutting tools
W2Mo9Cr4V2 China
High-speed tool steel
W2Mo9Cr4VCo8 China
High-speed tool steel
W9Mo3Cr4V China
High-speed tool steel
W9Mo3Cr4V coil China
Saw high-speed tool steel hot-rolled steel strip
H19 ASTM USA
Alloy tool steel
T20819 UNS USA
Alloy tool steel
A9 ASTM USA
Alloy tool steel
T30109 UNS USA
Alloy tool steel
T41902 UNS USA
Alloy tool steel
T41904 UNS USA
Alloy tool steel
T41905 UNS USA
Alloy tool steel
T41906 UNS USA
Alloy tool steel
T41907 UNS USA
Alloy tool steel
CPM H19 AISI USA
Powder metallurgy tool steel Hot work tool steels
Contact Suppliers with your enquiries for 9/1a any of the shape and size.

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9/1a can be supplied as steel plate/ sheet, round steel bar, steel tube/pipe, steel stripe, steel billet, steel ingot, steel wire rods. electroslag, forged ring/ block,etc.
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