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SACM645

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SCM822 SMn420
#SACM645

Description

China CNS SACM645 China Taiwan Structural steel and SACM645 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: SACM645
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel SACM645 CNS China China Taiwan Structural steel
SCM415
SCM418
SCM420
SCM421
SCM430
SCM432
SCM435
SCM440
SCM445
SCM822

Chemical composition(mass fraction)(wt.%) of the SACM645

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) Al(%)
0.40-0.50 0.15-0.50 Max 0.60 0.030 0.030 1.30-1.70 — 0.15-0.30 0.70-1.20

Mechanical Properties of steel grade SACM645

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)
917 (≥) 883 (≥) 13 11 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical Properties of steel grade SACM645

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
24 - -     0.24 -  
641 983 - 22.3 222   -  
489 - 21 23.2   211 322

Heat Treatment of steel grade SACM645

Heat treated : 1551°C - 1352°C

Technological Curves of steel grade SACM645

Cross Reference Table (Equivalent Grade) of SACM645

Grade Standard Country Application
SACM645 CNS China China Taiwan Structural steel
SCM822 SMn420
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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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