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STS420J2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS420J2

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KS STS420J2

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This page is mainly introduced the STS420J2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS420J2,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Stainless steel bars

Steel Garde:STS420J2
Type:Stainless Steels
Country:Korea
Standard:KS

Standard Number:

ITEM	Standard Number	Descriptions
1	D 3692 (2001)	Cold finished stainless steel bars
2	D 3698 (2008)	Cold rolled stainless steel plates, sheets and strip
3	D 3702 (2008)	Stainless steel wire rods
4	D 3703 (2007)	Stainless steel wires
5	D 3705 (2008)	Hot rolled stainless steel plates, sheets and strip
6	D 3706 (2008)	Stainless steel bars
7	D 3534 (2002)	Cold rolled stainless steel strip for springs

Metallographic Structure:Martensite
Application:Stainless steel bars

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
STS420J2TKA	KS	Korea
STS420J2FB	KS	Korea

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.26	0.40
Si		1.00
Mn		1.00
P		0.040
S		0.030
Cr	12.00	14.00
Ni		0.60
Mo
N

Mechanical Properties

Tensile strength	314～459	σb/MPa
Yield Strength	452	σ 0.2 ≥/MPa
Elongation	69	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	917～378	-
HRC	30	-

Physical Properties

Thermal expansion	35-07	e-6/K
Thermal conductivity	92-96	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	2809-6349	째C
Density	9458-0647	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)
STS420J2 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