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303 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 303

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AS 303

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This page is mainly introduced the 303 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 303,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
303

Steel Garde:303
Type:Special Alloy
Country:Australia
Standard:AS
Application:Australia Stainless steel

Relevant products:

GH3039 round bar

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
303S42		UK
303S31		UK
1.4303	AFNOR	France
CNS 303	CNS	China
CNS 303Se	CNS	China
STS303	KS	Korea
STS303Se	KS	Korea
SS 2303	SS	Sweden
S30317	GBT	China
S30327	GBT	China
413030	CSN	Czech Republic
13030	CSN	Czech Republic
V-303	ABNT	Brazil
A30304	GBT	China
A30354	GBT	China
CNS 303	CNS	China
CNS 303Se	CNS	China
CNS 303	CNS	China
CNS 303Se	CNS	China
EN X2CrNiMo191303KE	EN	Euronorm
GH3030	GBT	China
GH3039	GBT	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	799～649	σb/MPa
Yield Strength	854	σ 0.2 ≥/MPa
Elongation	53	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	190～781	-
HRC	30	-

Physical Properties

Thermal expansion	61-82	e-6/K
Thermal conductivity	11-26	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	8527-6694	째C
Density	4100-7703	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)
303 Special Alloy	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