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420J1 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 420J1

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CNS 420J1

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This page is mainly introduced the 420J1 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 420J1,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:420J1
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 420J1 FB	JIS	Japan
SUS 420J1TKA	JIS	Japan
STS420J1	KS	Korea
STS420J1TKA	KS	Korea
STS420J1FB	KS	Korea
420J1TKA	CNS	China

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.16	0.25
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	740～621	σb/MPa
Yield Strength	583	σ 0.2 ≥/MPa
Elongation	29	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	949～728	-
HRC	30	-

Physical Properties

Thermal expansion	17-46	e-6/K
Thermal conductivity	02-51	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	0257-3988	째C
Density	8815-8902	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)
420J1 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