1.2379 Mould Alloy Die Cold Work Tool Steel - Knowledge - Hubei Kaixin Supply Chain Management Co.Ltd

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1.2379 Mould Alloy Die Cold Work Tool Steel

Sep 18, 2017

Basic Info

Product Description

1.2379 mould alloy die cold work tool steel:

Equivalent grades	GB		DIN		AISI		JIS		BS
	Cr12Mo1V1		1.2379		D2		SKD11		BD2
Chemical Composition	C	Si	Mn	Cr	P	S	V	Mo	Other
	1.50-1.60	0.10-0.40	0.15-0.45	11.50-12.50	0.03MAX	0.03MAX	0.90-1.10	0.60-0.80	-
Available size	Round Bar		Diameter				Length
			60-800mm				2000-6000mm
	Flat Bar		Thickness		Width			Length
			25-400mm		200-800mm			2000-6000mm
Surface condition	Black surface/ Grinded/ Machined
Annealed hardness	HB225MAX
Characteristics	Very high resistance against abrasive and adhesive wear due to a high volume of hard carbides in the steel matrix moderate machinability, good dimensional stability, toughness and through harden ability


Applications	Shear blades,Thread rolling dies,Drawing and bending tools Flanging and straightening rolls,Fine cutting tools Deep drawing tools,Plastic mould for abrasive polymers Cold extrusion dies,Drawing dies


Heat treatment	Hardening Harden from a temperature of 1000-1040oC followed by oil, warm bath (500-550oC, cooling bath or air. Hardness after quenching is 62-64 HRC. Tempering Tempering temperature: 150-550oC Tempering Temperature (oC) vs. Hardness (HRC)

	100°C		200°C		300°C		400°C		500°C
	63		61		58		58		59
Mechanical properties	Density				7.7[g/cm3]
	Thermal Conductivity				20.20 W/(m/k)
	Specific heat capacity[J/g.K]				0.46
	Coefficient of Linear Thermal Expansion 10-6 oC-1
	20-100°C		20-200°C		20-300°C		20-400°C		20-500°C
	9.8		11.7		12.1		12.8		12.9