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STS31 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS31

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KS STS31

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This page is mainly introduced the STS31 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS31,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.

Steel Garde:STS31
Type:Special Alloy
Country:Korea
Standard:KS
Application:Carbide for cutting tools

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
STS31	KS	Korea
STS317J5L	KS	Korea
STS317J5L	KS	Korea
STS317LN	KS	Korea
STS310S	KS	Korea
STS316	KS	Korea
STS316L	KS	Korea
STS316LN	KS	Korea
STS316Ti	KS	Korea
STS316J1	KS	Korea
STS316J1L	KS	Korea
STS317	KS	Korea
STS317L	KS	Korea
STS317J1	KS	Korea
STS317J4L	KS	Korea
STS316TKA	KS	Korea
STS316TKC	KS	Korea

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	746～436	σb/MPa
Yield Strength	223	σ 0.2 ≥/MPa
Elongation	72	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	614～645	-
HRC	30	-

Physical Properties

Thermal expansion	76-72	e-6/K
Thermal conductivity	46-63	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	6456-0131	째C
Density	5932-2438	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)
STS31 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