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STKM18B

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STKM18A STKM18C
#STKM18B

Description

China CNS STKM18B China Taiwan Structural steel and STKM18B Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: STKM18B
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel STKM18B CNS China China Taiwan Structural steel
STKM14A
STKM14B
STKM14C
STKM15A
STKM15C
STKM16A
STKM16C
STKM17A
STKM17C
STKM18A

Chemical composition(mass fraction)(wt.%) of the STKM18B

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

Mechanical Properties of steel grade STKM18B

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)
296 (≥) 164 (≥) 24 31 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 141

Physical Properties of steel grade STKM18B

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
33 - -     0.33 -  
697 264 - 11.3 244   -  
488 - 14 12.2   333 134

Heat Treatment of steel grade STKM18B

Heat treated : 1197°C - 1132°C

Technological Curves of steel grade STKM18B

Cross Reference Table (Equivalent Grade) of STKM18B

Grade Standard Country Application
STKM18B CNS China China Taiwan Structural steel
STKM18A STKM18C
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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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