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40SiNiCr250 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 40SiNiCr250

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STAS/SR 40SiNiCr250

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This page is mainly introduced the 40SiNiCr250 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 40SiNiCr250,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
40SiNiCr250

Steel Garde:40SiNiCr250
Type:Special Alloy
Country:Romania
Standard:STAS/SR
Application:Stainless steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	731～433	σb/MPa
Yield Strength	583	σ 0.2 ≥/MPa
Elongation	87	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	375～609	-
HRC	30	-

Physical Properties

Thermal expansion	53-79	e-6/K
Thermal conductivity	84-62	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	5821-5376	째C
Density	8732-0228	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)
40SiNiCr250 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