1.7720

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#1.7720

Description

1.7720 Mould Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Mould Steel: 1.7720

Category	Type	Steel Grade
Steel Grades	Mould Steel	1.7720
		1.0625
		G20Mo5
		1.5419
		G17CrMo5-5
		1.7357
		G17CrMo9-10
		1.7379
		GX15CrMo5
		1.7365
		G12MoCrV5-2

Chemical composition(mass fraction)(wt.%) of the 1.7720

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.10-0.15	0.45	0.40-0.70	0.030	0.020	0.30-0.50
Mo	Al	Cu	Nb	Ti	V	Ce
0.40-0.60					0.22-0.30
N	Co	Pb	B	Other
				Sn≤0.025

Mechanical Properties of steel grade 1.7720

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)
843 (≥)	248 (≥)	44	24	42	Solution and Aging, Annealing, Ausaging, Q+T,etc	212

Physical Properties of steel grade 1.7720

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
31	-	-			0.42	-
125	253	-	44.3	134		-
326	-	14	44.2			411	142

Heat Treatment of steel grade 1.7720

Heat treated : 1882°C - 1788°C

Technological Curves of steel grade 1.7720

No Curve

Available Suppliers

Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

Rfq.: sales@longhaisteel.com

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