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STS420J1 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS420J1

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KS STS420J1

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This page is mainly introduced the STS420J1 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS420J1,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
STS420J1

Steel Garde:STS420J1
Type:Special Alloy
Country:Korea
Standard:KS
Application:martensitic steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
STS420J1	KS	Korea
STS420J1TKA	KS	Korea

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	675～999	σb/MPa
Yield Strength	309	σ 0.2 ≥/MPa
Elongation	48	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	599～511	-
HRC	30	-

Physical Properties

Thermal expansion	26-93	e-6/K
Thermal conductivity	07-78	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	4828-2500	째C
Density	8904-7322	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)
STS420J1 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