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

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JIS SUS 420J1

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This page is mainly introduced the SUS 420J1 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUS 420J1,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Stainless steel bars

Steel Garde:SUS 420J1
Type:Stainless Steels
Country:Japan
Standard:JIS
Standard Number:

ITEM Standard Number Descriptions

1 G 4303 (2012) Stainless steel bars
Metallographic Structure:Martensite
Application:Stainless steel bars

ITEM	Standard Number	Descriptions
1	G 4303 (2012)	Stainless steel bars

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
SUS 420J 1FB	JIS	Japan
SUS 420J 1TKA	JIS	Japan
SUS 420J1	JIS	Japan
SUS 420J1	JIS	Japan
SUS 420J1	JIS	Japan
SUS 420J1	JIS	Japan
SUS 420J1	JIS	Japan

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.16	0.25
Si		1.00
Mn		1.00
P		0.06
S		0.03
Cr	12.00	14.00
Ni		0.60
Mo
N

Mechanical Properties

Tensile strength	644～861	σb/MPa
Yield Strength	547	σ 0.2 ≥/MPa
Elongation	32	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	262～932	-
HRC	30	-

Physical Properties

Thermal expansion	02-11	e-6/K
Thermal conductivity	28-65	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	1127-1545	째C
Density	8589-4840	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)
SUS 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