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SUS 304 A chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUS 304 A

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JIS SUS 304 A

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This page is mainly introduced the SUS 304 A chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUS 304 A,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Stainless steel for building structure

Steel Garde:SUS 304 A
Type:Stainless Steels
Country:Japan
Standard:JIS
Standard Number:

ITEM Standard Number Descriptions

1 G 4321 (2000) Stainless steel for building structure
Application:Stainless steel for building structure

ITEM	Standard Number	Descriptions
1	G 4321 (2000)	Stainless steel for building structure

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.08
Si		1.00
Mn		2.00
P		0.045
S		0.03
Cr	18.00	20.00
Ni	8.00	10.50
Mo
N

Mechanical Properties

Tensile strength	163～860	σb/MPa
Yield Strength	204	σ 0.2 ≥/MPa
Elongation	78	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	772～676	-
HRC	30	-

Physical Properties

Thermal expansion	44-57	e-6/K
Thermal conductivity	43-71	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	2753-7889	째C
Density	5150-3893	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 304 A 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