1.2379 Tool Steel 

 

Standards	DIN	AISI	JIS	ГОСТ
X155CrVMo12-1	1.2379	D2	SKD11	Х12МФ

 

ALTA SPECIAL STEEL supply DIN 1.2379 / AISI D2 in round bar, plate, square, sheet and block.

Chrome-molybdenum-vanadium steel with big hardenability for hardening in oil and in air, especially high resistance to the wear (higher than by 1.2080), good cutting power, very good firmness in the pressure, lower toughness (but higher than by 1.2080). This steel shows good dimensional stability at the heat treatment, suitable for hardening to the secondary hardness (the possibility of nitriding). Further the steel is very difficult to sharpen, it works at the heat with difficulties and has a rather difficult workability in the annealed state.

 

We welcome your inquiries for tool steel, please contact us for quotation sales@altaspecialsteel.com

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Chemical Composition

C	Si	Mn	P	S	Cr	Mo	V
1.45-1.60	0.10-0.40	0.15-0.45	≤0.030	≤0.030	11.0-13.0	0.70-1.00	0.70-1.10

 

 

Product Range

 

Round bars : Dia 8mm - 450mm

Flat bars : Thick 8mm - 400mm, width up to 810mm

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Applications : cutting, punching, stamping tools, shear blades, thread rolling dies, drawing and bending tools, flanging and straightening rolls, deep drawing tools, plastic mould for abrasive polymers, cold extrusion dies, dawing dies etc.

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Heat Treatment

Way	Temperature[℃]	Remark
Forging	850 - 1050
Soft annealing	800 - 850	Max. 250HB after annealing
Quenching	1000 - 1090	Cool in oil, air or salt bath at the temperature of about 500-550°C
Tempering	150 - 540

 

℃	100	200	300	400	500	600
HRC	63	61	59	58	57	52