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S40 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of S40

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AFNOR S40

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This page is mainly introduced the S40 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of S40,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.

Steel Garde:S40
Type:Special Alloy
Country:France
Standard:AFNOR
Application:Carbide for cutting tools

Relevant products:

403(UNS S40300) ...

403Cb Stainless ...

410 Stainless Steel Flat bars

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
S40	AFNOR	France
SUS405	JIS	Japan
SUS403	JIS	Japan
SUS403FB	JIS	Japan
SUS405TP	JIS	Japan
SUS409LTP	JIS	Japan
STS405	KS	Korea
STS405	KS	Korea
STS403	KS	Korea
STS403	KS	Korea
STS405	KS	Korea
STS405	KS	Korea
S40CrMnlSil	STAS/SR	Romania
SS400	CNS	China
S40C	CNS	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	323～308	σb/MPa
Yield Strength	521	σ 0.2 ≥/MPa
Elongation	48	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	306～699	-
HRC	30	-

Physical Properties

Thermal expansion	29-89	e-6/K
Thermal conductivity	54-59	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	8666-4015	째C
Density	1201-8579	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)
S40 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