403

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403 High Alloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:High Alloy: 403

Category	Type	Steel Grade
Steel Grades	High Alloy	403
		405
		S40500
		S40976
		430
		S43000
		S44400
		446
		S44600
		S44700
		S44800

Chemical composition(mass fraction)(wt.%) of the 403

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.15	0.5	1	0.04	0.03	11.5-13
Mo	Al	Cu	Nb	Ti	V	Ce

N	Co	Pb	B	Other

Mechanical Properties of steel grade 403

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)
944 (≥)	779 (≥)	31	42	32	Solution and Aging, Annealing, Ausaging, Q+T,etc	411

Physical Properties of steel grade 403

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	-	-			0.33	-
576	975	-	33.3	324		-
652	-	14	32.2			421	224

Heat Treatment of steel grade 403

Heat treated : 1789°C - 1852°C

Technological Curves of steel grade 403

No Curve

Cross Reference Table (Equivalent Grade) of 403

Grade	Standard	Country	Application
T30403	UNS	USA	Alloy tool steel
SUS403	JIS	Japan	Martensitic special steel
SUS403FB	JIS	Japan	austenite and ferrite special steel
403S17			austenitic special steel
1.4031	AFNOR	France	Martensite And Precipitation Hardening
1.4034	AFNOR	France	Martensite And Precipitation Hardening
STS403			martensitic steel
STS403			martensitic steel
UNS J93403	AISI	USA
CNS 403		China	CNS standard martensite stainless steel
S30403		China	Stainless steel bars
4037			Australia Structural steel
X4036			Australia Structural steel
U40302		China	China structural steel and alloy steel
U40352		China	China structural steel and alloy steel
CNS 403		China	China Taiwan Stainless steel
CNS 403		China	China Taiwan Stainless steel
GH4033		China	Age hardening type iron base alloy
GH4037		China	Age hardening type iron base alloy
K403		China	Age hardening type Nickel base alloy

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403