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Specifications

AISI H13 Tool Steel: moulds with high polishing and long life time competitivce price large stocks

 

Steel Grade

GB	AISI	DIN	JIS
4Cr5MoSiV1	H13	X40CrMoV51 (1.2344)	SKD61

Advantages:

High resistance to heat checking. Excellent resistance to thermal shock. Good size stability. Good red hardness.

It’s used as dies for hot squeezing mold, forging mold and embedded lomp, hot forming steels, brass, aluminium and its alloys, hot work shear blades, etc.

Mechanical Property

Annealed Hardness: HB≤241

Quenching Hardness: HRC 56~58

Delivery Condition

Forged + Annealed + Machining (Peeled/Turned)

 

Chemical Composition (%):

 

Grade	C	Si	Mn	P	S	Cr	Mo	V
1.2344	0.35-0.42	0.80-1.20	0.25-0.50	≤0.030	≤0.020	4.80-5.50	1.20-1.50	0.85-1.15
H13	0.32-0.45	0.80-1.20	0.20-0.50	≤0.030	≤0.030	4.75-5.50	1.10-1.75	0.80-1.20
4Cr5MoSiV1	0.32-0.42	0.80-1.20	0.20-0.50	≤0.030	≤0.030	4.75-5.50	1.10-1.75	0.80-1.20

 

 

 

Properties:

Hot work tool steel with high level of resistance to thermal shock and fatigue, excellent hot tensile strength properties, high hot wear resistance, good machinability and polishability, fine grain size with high level toughness, dimensional stability, extra fine structure without grain boundary carbide, nitridable, contains low P and S alloys, admits water cooling.

 

Applications:

Highly stressed hot work tools and dies, pressure casting dies for light metals, mandrels, dies, liners, dieholders, bolsters, stems, punches, dummy blocks and containers for metal tube and rod extrusion tools, hot shear blades, hot forming and forging dies for steels, brass and aluminum, tools and dies for the manufacture of hollow bodies, screws,nuts, rivets and bolts, moulds, worms and cylinders for the processing of plastics, press dies and die inserts, rolls for profiling tools,hot extrusion equipments, trimming tools, plastic moulding dies, severe cold punching, scrap shears, shrink rings, wear

resisting parts, cold heading die casings, hot gripper and header dies, nitrided ejectors.

 

Heat Treatment:

Annealing: 750 - 800 °C

Hardness after annealing: Max. 205 HB

Stress relieving: 600 - 650 °C

Hot forming: 900 - 1100 °C

Hardening: 1020 - 1080 °C

Quenching media: Oil, Salt bath ( 500 - 550 °C ), Air

Hardness after quenching: 52 - 56 HRC Oil, Salt bath; 50 - 54 HRC Air

Hardness after tempering:

Tempering °C	400	500	550	600
HRC	54	55	54	50

 

H13 STEEL