Hot Work Tool Steel H13

$2500 - $2850

Norms: ASTM A681;
Size range: round bar dia13mm - dia 600mm;
flat 10 - 400mm x 100 - 800mm;
Surface condition: round bar, gound / rough
turned / polished;
flat, black / rough machined;
Packing: seaworthy packing.

Standard	Grade
AISI/SAE	H13
W.Nr/DIN	1.2344
JIS	SKD61
GB	4Cr5MoSiV1

H13 Tool Steel Chemical Composition (%)

C	Si	Mn	P	S	Cr	Mo	V
0.35-0.45	0.80-1.20	0.20-0.50	≤0.03	≤0.03	4.80-5.50	1.10-1.75	0.80-1.20

Hot Forming

Forging: 1100 to 900℃, slowing cooling in furnace.

Heat Treatment

Annealing: 750 to 800℃, slow cooling in furnace (10-20℃/hr), down to 600℃, cooling in air. Hardness after annealing: max. 230 HB.

Stress relieving: 600 to 650℃, slow cooling in furnace. Hold in neutral atmosphere for 1 to 2hours.

Hardening: 1020 to 1080℃, oil/air, hold 20 to 30 minutes. Hardness , 52 to 56 HRC in oil, 50 to 54 HRC in air.

Tempering: 560 to 580℃. Slowly heating to tempering temperature right after hardening. Recommended to temper at least twice. The second tempering temperature shall be approx. 20 to 30℃ lower than the first tempering.

Tempering ℃	300	400	500	600
HRC	53	54	55	50

* Hardening temperature: 1050℃, specimen size: dia50mm

Surface treatment

Nitriding: Suited for both bath and gas nitriding.

Properties

Excellent hot tensile properties, high hot wear resistance, good machinability, high toughness and heat checking resistance. Recommended working temperature under than 540℃.

H13 Tool Steel Applications

Heavy duty hot work tools and dies: mandrels, dies, and containers for metal tube and rod extrusion; hot extrusion equipment; tools and dies for the manufacture of hollow bodies, screws, rivets, nuts, and bolts. Die casting equipment, forming dies, die inserts, hot shear blades, and plastic moulding dies.

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