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DIN 1.2343_AISI H11 Hot Work Tool Steel

Hot work tool steel  DIN 1.2343/AISI H11 


Equivalent Grades of 1.2343 steel                       

Standard

Grade

AISI/SAE

H11

W.Nr/DIN

1.2343

JIS

SKD6

GB

4Cr5MoSiV

 

Typical Chemical Composition (%)

C

Si

Mn

Cr

Mo

V

0.33-0.42

0.80-1.20

0.20-0.50

4.80-5.50

1.10-1.60

0.30-0.60

 

Hot Forming

Forging: 1100 to 900, slowing cooling in furnace.

Heat Treatment of 1.2343/H11 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: 1000 to 1040, oil/air, hold 15 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. 30 lower than the first tempering.

Tempering  

300

400

500

580

HRC

53

53

54

50

* Hardening temperature: 1020, specimen size: dia50mm

 

Surface treatment 

Nitriding: Suited for both bath and gas nitriding.


Properties of 1.2343/H11 steel

High impact strength, excellent hot tensile properties and deep hardening properties, insensitivity to thermal shocks. Water cooling available.

 

Applications of 1.2343/H11 steel

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 Steel 1.2343/H11
Round:Dia   12-50mmhot rolled

Dia   50-600mmforged

Flat/Square:Thickness8-40mmhot rolled


20-350mmhot forged

Width800mm max


IMG_0002.jpg IMG_0315.jpg


Get quotation about tool steel 1.2343/H11 round/flat bars,plate and forged block,please contact us.

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