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STS630 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS630

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KS STS630

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This page is mainly introduced the STS630 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS630,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
STS630

Steel Garde: STS630
Type:Special Alloy
Country:Korea
Standard:KS
Application:precipitation hardened steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
STS630	KS	Korea

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	523～345	σb/MPa
Yield Strength	832	σ 0.2 ≥/MPa
Elongation	99	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	988～211	-
HRC	30	-

Physical Properties

Thermal expansion	56-31	e-6/K
Thermal conductivity	92-15	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	8722-4214	째C
Density	2567-2767	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)
STS630 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