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STKM18A

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STKM17C STKM18B
#STKM18A

Description

China CNS STKM18A China Taiwan Structural steel and STKM18A Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: STKM18A
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel STKM18A CNS China China Taiwan Structural steel
STKM13C
STKM14A
STKM14B
STKM14C
STKM15A
STKM15C
STKM16A
STKM16C
STKM17A
STKM17C

Chemical composition(mass fraction)(wt.%) of the STKM18A

C(％) Si(％) Mn(％) P(％) S(％)
Max 0.18 0.55 Max 1.50 0.04 0.04

Mechanical Properties of steel grade STKM18A

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)
646 (≥) 471 (≥) 33 33 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 143

Physical Properties of steel grade STKM18A

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 - -     0.11 -  
541 465 - 24.3 324   -  
658 - 34 12.2   244 112

Heat Treatment of steel grade STKM18A

Heat treated : 1899°C - 1488°C

Technological Curves of steel grade STKM18A

Cross Reference Table (Equivalent Grade) of STKM18A

Grade Standard Country Application
STKM18A CNS China China Taiwan Structural steel
STKM17C STKM18B
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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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