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5/2

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5/1 Grade 7
#5-1 #5-2

Description

UK B.S. 5/2 Steel for cold forged fasteners and similar components and 5/2 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: 5/2
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy 5/2 B.S. UK Steel for cold forged fasteners and similar components
0/3
0/4
1/1
1/2
1/3
2/1
2/2
3/1
3/2
5/1

Chemical composition(mass fraction)(wt.%) of the 5/2

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Mo(％)
0.38-0.43 0.15-0.40 0.70-0.90 0.035 0.035 0.90-1.10 0.15-0.25

Mechanical Properties of steel grade 5/2

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)
689 (≥) 959 (≥) 14 11 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 421

Physical Properties of steel grade 5/2

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
43 - -     0.12 -  
237 288 - 12.3 323   -  
977 - 44 12.2   322 231

Heat Treatment of steel grade 5/2

Heat treated : 1617°C - 1592°C

Technological Curves of steel grade 5/2

Cross Reference Table (Equivalent Grade) of 5/2

Grade Standard Country Application
X63CrMoV5-1 DIN Germany Cold working alloy tool steel
X100CrMoV5-1 DIN Germany Cold working alloy tool steel
X35CrMoV5-1-1 DIN Germany Hot working alloy tool steel
X38CrMoV5-1 DIN Germany Hot working alloy tool steel
X40CrMoV5-1 DIN Germany Hot working alloy tool steel
X50CrMoV5-1 DIN Germany Hot working alloy tool steel
30WCrV15-1 DIN Germany Hot working alloy tool steel
X37CrMoW5-1 DIN Germany Hot working alloy tool steel
X37CrMoV5-1 ISO Carbide for cutting tools
X37CrMoV5-1 ISO Carbide for cutting tools
X2CrNiMnMoNbN25-18-5-4 DIN Germany Stainless steel
X6NiCrTiMoVB25-15-2/X5NiCrTi26-15 DIN Germany The high-temperature and high-strength steel
X4CrNiMo16-5-1 AFNOR France Martensite And Precipitation Hardening
Z5CTDV25-15B AFNOR France Stainless Steel Plate & Steel Strip
Z6NCTDV25-15B AFNOR France Hot-Rolled stainless steel bar and wire rod (NF A 35-574 (1990))
Z8NCTDV25-15BFF AFNOR France Cold drawn stainless steel bar and wire rod(NF A 35-577(1990))
X6NiCrTiMoB25-15-2 AFNOR France Fasteners with stainless steel and nickel alloy for high temperature and low temperature (NF-EN 10269(1999))
X10CrNiMoMnNbVB15-10-1 AFNOR France Fasteners with stainless steel and nickel alloy for high temperature and low temperature (NF-EN 10269(1999))
X15CrMo5-1 AFNOR France Fasteners with stainless steel and nickel alloy for high temperature and low temperature (NF-EN 10269(1999))
M-35-1 AISI USA
5/1 Grade 7
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