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

Datasheet for: Steel Grades:High Alloy: 434

Category	Type	Steel Grade
Steel Grades	High Alloy	434
		S41050
		S41500
		S42035
		S42900
		429
		S43000
		430
		S43035
		439
		S43400

Chemical composition(mass fraction)(wt.%) of the 434

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.12	1	1	0.04	0.03	16-18	0.75-1.25
Mo	Al	Cu	Nb	Ti	V	Ce

N	Co	Pb	B	Other

Mechanical Properties of steel grade 434

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)
861 (≥)	177 (≥)	22	12	13	Solution and Aging, Annealing, Ausaging, Q+T,etc	333

Physical Properties of steel grade 434

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
12	-	-			0.44	-
244	818	-	41.3	213		-
875	-	33	23.2			213	422

Heat Treatment of steel grade 434

Heat treated : 1166°C - 1628°C

Technological Curves of steel grade 434

No Curve

Cross Reference Table (Equivalent Grade) of 434

Grade	Standard	Country	Application
SUS434	JIS	Japan	ferritic stainless steels
SUS434	JIS	Japan	ferritic stainless steel
434S17			austenitic special steel
434S20			austenitic special steel
1.4434	AFNOR	France	Austenite
STS434			Ferritic Steel
STS434			Ferritic Steel
ICI 4340	AISI	USA
CNS 434		China	CNS standard ferritic stainless steel
414340			The Czech republic Structural steel
414341			The Czech republic Structural steel
14340			The Czech republic Structural steel
14341			The Czech republic Structural steel
419434			The Czech republic tool steel
4340			Australia Structural steel
4340 H			Australia Structural steel
4340			Australia Structural steel
CNS 434		China	China Taiwan Stainless steel
4340		USA	Carbon and Low Alloy Steel for General Application, and Cobalt Alloy for High Strength at Elevated Temperatures
4340		USA	Carbon and Low Alloy Steel for General Application, and Cobalt Alloy for High Strength at Elevated Temperatures

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