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AISI H13_DIN 1.2344_SKD61 Hot Work Tool Steel


Hot work tool steel H13 / 1.2344 / SKD61 ---- has air hardening with good toughness, resistance to abrasion and high red hardness. It resists softening to 550°C and has good resistance to heat checking. Will Nitride with a case hardness over 1000 V.P.N. Generally supplied annealed to HB 230 max. 


Equivalent grades of H13 / 1.2344 steel

Standard

Grade

AISI/SAE

H13

W.Nr/DIN

1.2344

JIS

SKD61

GB

4Cr5MoSiV1


Typical Chemical Composition of H13 / 1.2344 /SKD61 (%)

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

1.20-1.75

0.90 -1.20

Hot Forming

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


Heat Treatment of H13 / 1.2344 / SKD61 steel

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 of H13 / 1.2344 / SKD61 steel

Nitriding: Suited for both bath and gas nitriding.


Properties of H13 / 1.2344 / SKD61 steel

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


Applications of hot work tool steel H13 / 1.2344 / SKD61 

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.  


Available size of H13 / 1.2344 / SKD61 steel

Round:Dia 2-12mmcold rolled

Dia 12-50mmhot rolled

Dia 50-600mmforged

Flat/Square:



Thickness:1-2.5mmcold rolled


3-40mmhot rolled


20-350mmhot forged

Width:1000mm max



IMG_9778.jpg   IMG_0793.jpg


Inquiry for AISI H13_DIN 1.2344_JIS SKD61_GB 4Cr5MoSiV1 Hot Work Steel, please contact us.


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