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Czech Republic CSN 42 2740 The Czech republic Structural steel and 42 2740 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: 42 2740
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel 42 2740 CSN Czech Republic The Czech republic Structural steel
42 2715
42 2719
42 2723
42 2724
42 2726
42 2731
42 2733
42 2735
42 2736
42 2739

Chemical composition(mass fraction)(wt.%) of the 42 2740

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) V(%) Cu(%)
0.11-0.19 0.20-0.50 0.60-1.00 0.035 0.035 1.00-1.50 0.30 0.40-0.60 0.50-0.70 0.30

Mechanical Properties of steel grade 42 2740

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)
293 (≥) 272 (≥) 23 43 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 323

Physical Properties of steel grade 42 2740

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
41 - -     0.32 -  
891 125 - 23.3 234   -  
457 - 44 41.2   114 414

Heat Treatment of steel grade 42 2740

Heat treated : 1831°C - 1664°C

Technological Curves of steel grade 42 2740

Cross Reference Table (Equivalent Grade) of 42 2740

Grade Standard Country Application
H42 ASTM USA Alloy tool steel
T20842 UNS USA Alloy tool steel
M42 ASTM USA Molybdenum series High-speed tool steel
T11342 UNS USA Molybdenum series High-speed tool steel
CPM Rex M42 AISI USA Powder metallurgy high-speed tool steel
X42Cr13 DIN Germany Cold working alloy tool steel
1.2242 DIN Germany Cold working alloy tool steel
81MoCrV42-16 DIN Germany Cold working alloy tool steel
1.2442 DIN Germany Cold working alloy tool steel
1.2542 DIN Germany Cold working alloy tool steel
142WV13 DIN Germany Cold working alloy tool steel
1.2842 DIN Germany Cold working alloy tool steel
1.3342 DIN Germany High-speed tool steel
BT42 UK Carbide for cutting tools
BM42 UK Carbide for cutting tools
BM42 UK Carbide for cutting tools
42CrMo4 AFNOR France Carbide for cutting tools
42CrMo4 AFNOR France Carbide for cutting tools
X80MoCrV42-16 AFNOR France Carbide for cutting tools
X80MoCrV42-16 AFNOR France Carbide for cutting tools

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