4720

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#4720

Description

4720 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: 4720

Category	Type	Steel Grade
Steel Grades	Carbon Steel	4720
		4140
		4150
		5140
		5150
		6150
		440C
		440C Mod.
		3310
		4320
		4620

Chemical composition(mass fraction)(wt.%) of the 4720

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.17-0.22	0.15-0.35	0.5-0.7	0.015	0.015	0.35-0.55	0.9-1.2
Mo	Al	Cu	Nb	Ti	V	Ce
0.15-0.25		≤0.35
N	Co	Pb	B	Other

Mechanical Properties of steel grade 4720

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)
864 (≥)	484 (≥)	24	12	41	Solution and Aging, Annealing, Ausaging, Q+T,etc	444

Physical Properties of steel grade 4720

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
11	-	-			0.44	-
175	557	-	41.3	424		-
393	-	34	14.2			412	214

Heat Treatment of steel grade 4720

Heat treated : 1331°C - 1996°C

Technological Curves of steel grade 4720

No Curve

Cross Reference Table (Equivalent Grade) of 4720

Grade	Standard	Country	Application
1.4720	DIN	Germany	Stainless steel

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Stainless Steels

Tube/Pipe

Steel Profiles

Cold rolled/hot rolled

Wire rod

Quality special steel

Superalloy & High Temperature Alloy