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40CrNi12S chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 40CrNi12S

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STAS/SR 40CrNi12S

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This page is mainly introduced the 40CrNi12S chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 40CrNi12S,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
40CrNi12S

Steel Garde:40CrNi12S
Type:Special Alloy
Country:Romania
Standard:STAS/SR
Application:Alloy structural steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	398～638	σb/MPa
Yield Strength	297	σ 0.2 ≥/MPa
Elongation	44	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	606～872	-
HRC	30	-

Physical Properties

Thermal expansion	28-96	e-6/K
Thermal conductivity	60-17	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	9174-9469	째C
Density	1302-4821	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)
40CrNi12S 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