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S40940 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of S40940

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AISI S40940

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This page is mainly introduced the S40940 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of S40940,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.

Ferritic Chromium Stainless Steel with Columbium

Steel Garde:S40940
Type:Stainless Steels
Country:USA
Standard:AISI
Metallographic Structure:Ferrite
Application:Ferritic Chromium Stainless Steel with Columbium

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
A 493 S40940	SAE	USA

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.06
Mn		1.00
Si		1.00
P		0.045
S		0.04
Cr	10.50	11.70
Ni		0.50
Mo

Mechanical Properties

Tensile strength	105～002	σb/MPa
Yield Strength	261	σ 0.2 ≥/MPa
Elongation	72	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	292～688	-
HRC	30	-

Physical Properties

Thermal expansion	21-07	e-6/K
Thermal conductivity	17-34	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	0064-7237	째C
Density	9268-3498	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)
S40940 Stainless Steels	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