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S40C chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of S40C

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CNS S40C

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This page is mainly introduced the S40C chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of S40C,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
S40C

Steel Garde:S40C
Type:Special Alloy
Country:China
Standard:CNS
Application:China Taiwan Structural steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
S40CrMnlSil	STAS/SR	Romania

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	758～390	σb/MPa
Yield Strength	841	σ 0.2 ≥/MPa
Elongation	48	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	601～254	-
HRC	30	-

Physical Properties

Thermal expansion	57-81	e-6/K
Thermal conductivity	57-90	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	5537-7623	째C
Density	6381-6646	kg/m³
Resistivity	0.50-0.60	Ohm.mm²/m

Heat Treatment Regime

Annealing	Quenching	Tempering	Normalizing	Q & T
√	√	√	√	√

Size Availability

Steel Grade	Specification	Processing range(mm)
S40C Special Alloy	Round Bar and Hollow Bar	Φ1 to Φ2000
	Square and Flat Steel	Φ10 to Φ100
	Plate and Sheet	0.08-800(Thickness)10-1500(Width)Length
	Tube or Pipe	OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
	Coil and Strip Steel	THK:0.1mm Width:1500mm
	Forged	Ring/Cylindrical/Disk