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420J2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 420J2

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CNS 420J2

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This page is mainly introduced the 420J2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 420J2,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Stainless steel wire rods

Steel Garde:420J2
Type:Stainless Steels
Country:China
Standard:CNS

Standard Number:

ITEM	Standard Number	Descriptions
1	G3067	Stainless steel bars
2	G3076	Stainless steel wires
3	G3077	Stainless steel wire rods

Metallographic Structure:Martensite
Application:Stainless steel wire rods

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
SUS 420J2 FB	JIS	Japan
SUS 420J2TKA	JIS	Japan
X45Cr13	DIN	Germany
1.3541	DIN	Germany
STS420J2	KS	Korea
STS420J2TKA	KS	Korea
STS420J2FB	KS	Korea
420J2CPS	CNS	China
420J2TKA	CNS	China

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
Ni		0.60
Cr	12.00	14.00
Mo

Mechanical Properties

Tensile strength	998～917	σb/MPa
Yield Strength	632	σ 0.2 ≥/MPa
Elongation	97	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	826～534	-
HRC	30	-

Physical Properties

Thermal expansion	83-48	e-6/K
Thermal conductivity	78-59	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	9762-1900	째C
Density	8339-3877	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)
420J2 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