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Description

UK B.S. 3/1 Steel for cold forged fasteners and similar components and 3/1 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: 3/1
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy 3/1 B.S. UK Steel for cold forged fasteners and similar components
Grade 0
0/1
0/2
0/3
0/4
1/1
1/2
1/3
2/1
2/2

Chemical composition(mass fraction)(wt.%) of the 3/1

C(%) Si(%) Mn(%) P(%) S(%) Cr(%)
0.35-0.40 0.15-0.40 0.70-0.90 0.035 0.035 0.90-1.20

Mechanical Properties of steel grade 3/1

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)
445 (≥) 975 (≥) 12 14 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 123

Physical Properties of steel grade 3/1

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 - -     0.11 -  
683 854 - 31.3 121   -  
351 - 34 24.2   342 322

Heat Treatment of steel grade 3/1

Heat treated : 1216°C - 1597°C

Technological Curves of steel grade 3/1

Cross Reference Table (Equivalent Grade) of 3/1

Grade Standard Country Application
X15CrMoCoV10-10-5 DIN Germany Hot working alloy tool steel
S2-10-1-8 DIN Germany High-speed tool steel
S18-0-1 DIN Germany High-speed tool steel
BL1 UK Carbide for cutting tools
BL1 UK Carbide for cutting tools
W 1.00-1.60 AFNOR France Carbide for cutting tools
W 1.00-1.60 AFNOR France Carbide for cutting tools
HS18-0-1 AFNOR France Carbide for cutting tools
HS18-0-1 AFNOR France Carbide for cutting tools
у10-1 ГОСТ Russia Carbide for cutting tools
у10-1 ГОСТ Russia Carbide for cutting tools
HS1-8-1 ISO ISO Carbide for cutting tools
HS1-8-1 ISO ISO Carbide for cutting tools
X15CrNiSi20-12 Germany Stainless steel
X12CrNiMoNb20-15 DIN Germany Stainless steel
SUS309STP JIS Japan austenitic special steel
X1CrNiM0CUN20-18-7 UK austenitic special steel
X1CrNiMoCuN20-18-7 AFNOR France Austenite
Z17CNS20-12 AFNOR France Stainless Steel Plate & Steel Strip
X10CrNiMoMnNbVB15-10-1 AFNOR France Fasteners with stainless steel and nickel alloy for high temperature and low temperature (NF-EN 10269(1999))

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