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303 Stainless Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Stainless Steel: 303

Category	Type	Steel Grade
Steel Grades	Stainless Steel	303
		301
		S30100
		301L
		S30103
		301LN
		S30153
		302
		S30200
		302B
		S30215

Chemical composition(mass fraction)(wt.%) of the 303

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.15	1.00	2.00	0.20	≥0.15	17.0-19.0	8.00-10.0
Mo	Al	Cu	Nb	Ti	V	Ce
≤0.60
N	Co	Pb	B	Other

Mechanical Properties of steel grade 303

Yield R_p0.2 (MPa)	Tensile R_m (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
537 (≥)	326 (≥)	24	43	44	Solution and Aging, Annealing, Ausaging, Q+T,etc	333

Physical Properties of steel grade 303

Temperature (°C)	Modulus of elasticity (GPa)	Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and	Thermal conductivity (W/m·°C)	Specific thermal capacity (J/kg·°C)	Specific electrical resistivity (Ω mm²/m)	Density (kg/dm³)	Poisson’s coefficient, ν
41	-	-			0.11	-
543	597	-	31.3	341		-
985	-	24	14.2			231	232

Heat Treatment of steel grade 303

Heat treated : 1582°C - 1869°C

Technological Curves of steel grade 303

No Curve

Cross Reference Table (Equivalent Grade) of 303

Grade	Standard	Country	Application
303S42			austenitic special steel
303S31			austenitic special steel
1.4303	AFNOR	France	Austenite
CNS 303		China	CNS standard stainless steel austenite size
CNS 303Se		China	CNS standard stainless steel austenite size
STS303			KS standard austenite stainless steel bars(KS D3706-1992)
STS303Se			KS standard austenite stainless steel bars(KS D3706-1992)
SS 2303	SS	Sweden	Swedish SS standard stainless steel and heat resistant steel
S30317		China	Stainless steel bars
S30327		China	Stainless steel bars
413030			The Czech republic Structural steel
13030			The Czech republic Structural steel
303			Australia Stainless steel
V-303			Brazil Stainless steel
A30304		China	China structural steel and alloy steel
A30354		China	China structural steel and alloy steel
CNS 303		China	China Taiwan Stainless steel
CNS 303Se		China	China Taiwan Stainless steel
CNS 303		China	China Taiwan Stainless steel
CNS 303Se		China	China Taiwan Stainless steel

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Rfq.: sales@longhaisteel.com

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