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DIN 1.2767 / AISI 6F7

DIN 1.2767 / AISI 6F7



Product Description

1.2767 / 6F7 Cold Work Tool Steel

Standards

DIN

AISI

JIS

ГОСТ

X45NiCrMo16

1.2767

6F7

SKT6

40Х2Н4МА

 

Chemical composition (typical analysis in %)

C

Si

Mn

P

S

Cr

Mo

Ni

0.40-0.50

0.10-0.40

0.15-0.45

≤0.030

≤0.030

1.20-1.50

0.15-0.35

3.80-4.30

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Steel properties :

Chrome–nickel–tungsten–molybdenum steel for hardening in the airflow with the high hardenability. The steel is characterized by a relatively high hardness after hardening, especially good toughness against the stress by pressure of shocks and hits, very good resistance to the wear and rather good dimensional stability at the heat treatment. It is rather difficult to form the steel at the heat and it shows relatively more difficult workability in the soft-annealed state.

 

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Applications :

 

For tools for hot work such as small dies requiring high toughness at the high hardness. Knives during the cold cutting of materials of thick thicknesses, knives for scrap. Highly stressed tools for cold punching,pressing of plastics,big breeze blocks and harden. Thick plate stamping die, tableware mold, large size blanking die, hot forging dies, embossing dies etc.

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Size range :

Diameter (mm)

Thickness (mm)

Width (mm)

45 - 450

20 - 400

Max 810

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Delivery condition :

Soft annealed to max. 280 HB

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Heat Treatment:

Soft annealing

Temperature(°C)

Cooling

Hardness

610 - 660

furnace

max. 280 HB

 

Forging

Temperature(°C)

Cooling

 

 

850 - 1050

furnace

 

 

Hardening

Temperature(°C)

Cooling

Tempering

 

840 - 870

oil or air

see tempering diagram

usually 100 - 600°C

 

 

 

Remarks: All technicial information is for reference only.

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