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415221

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415217 415222
#415221

Description

Czech Republic CSN 415221 The Czech republic Structural steel and 415221 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: 415221
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel 415221 CSN Czech Republic The Czech republic Structural steel
415112
415121
415124
415127
415128
415130
415131
415142
415147
415217

Chemical composition(mass fraction)(wt.%) of the 415221

C(％) Si(％) Mn(％) P(％) S(％) Cr(％)
0.12-0; 20 0.17-0.37 0.80-1.20 0.04 0.04 0.80-1.20

Mechanical Properties of steel grade 415221

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)
995 (≥) 394 (≥) 12 14 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 414

Physical Properties of steel grade 415221

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
12 - -     0.31 -  
343 477 - 31.3 422   -  
555 - 11 44.2   433 244

Heat Treatment of steel grade 415221

Heat treated : 1564°C - 1527°C

Technological Curves of steel grade 415221

Cross Reference Table (Equivalent Grade) of 415221

Grade Standard Country Application
415221 CSN Czech Republic The Czech republic Structural steel
415217 415222
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Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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