1.4340

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#1.4340

Description

1.4340 Mould Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Mould Steel: 1.4340

Category	Type	Steel Grade
Steel Grades	Mould Steel	1.4340
		1.4136
		GX120CrMo29-2
		1.4138
		GX2CrNi19-11
		1.4309
		GX10CrNi18-8
		1.4312
		GX4CrNi13-4
		1.4317
		GX40CrNi27-4

Chemical composition(mass fraction)(wt.%) of the 1.4340

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.30-0.50	2.00	1.50	0.045	0.030	26.0-28.0	3.50-5.00
Mo	Al	Cu	Nb	Ti	V	Ce

N	Co	Pb	B	Other

Mechanical Properties of steel grade 1.4340

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)
397 (≥)	489 (≥)	14	11	44	Solution and Aging, Annealing, Ausaging, Q+T,etc	433

Physical Properties of steel grade 1.4340

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
32	-	-			0.31	-
471	498	-	13.3	132		-
994	-	21	34.2			332	221

Heat Treatment of steel grade 1.4340

Heat treated : 1295°C - 1112°C

Technological Curves of steel grade 1.4340

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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