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D3 Steel Properties

D3 steel, also know as 1.2080 (Werkstoff), is an air hardening, high-carbon, high-chromium tool steel. It displays excellent abrasion/wear resistance and has good dimensional stability and high compressive strength.

It is heat treatable and will offer a hardness in the range 58-64 HRC. Due to its abrasion resistance in the hardened condition, D3 machining should be limited to finished grinding.

Typical applications for D3 Steel:

  • Blanking and forming dies
  • Forming rolls
  • Press tools
  • Punches
  • Bushes

Typical chemical composition of AISI D3 Steel

C

SI

Cr

Mn

Ni

2.10%

0.30%

11.50%

0.40%

0.31%

Annealing:

Heat uniformly to 850-870°C, soak thoroughly, then slow furnace cool at a rate of not more than 25°C per hour to 650°C. The parts may then be air cooled. This should result in a maximum hardness of brinell 248.

Hardening:

D3 tool steel is extremely sensitive to overheating during hardening – do not overheat.

Pre heat slowly to 800-850°C, the raise rapidly to 950-970°C and soak until completely equalised. Quench in oil.

Stress Relieving:

Heat to 650-700ºC. Soak for 2-4 hours then furnace cool.

Tempering:

Heat uniformly and thoroughly to the desired temperature and hold for 25 minutes per cm of thickness. D3 can be double tempered after intermediate cooling to room temperature.

Tempering D3 Steel

Tempering °C

150

200

250

300

350

400

HRC

64/63

63/61

62/60

61/60

60/59

59/58

 

D3 steel is available from stock in flats and squares, hot rolled rounds, bright drawn rounds in imperial and metric sizes.


Disclaimer:
The information presented here are typical or average values and are not a guarantee of maximum or minimum values. Uses described are made only for the purpose of illustration to enable the reader to make their own evaluation and are not intended as warranties, either express or implied, of fitness for these or other purposes.

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Steel Express

Based in Wolverhampton, West Midlands, Steel Express are steel suppliers and stockholders. Stock is delivered on our own fleet of vehicles locally and nationally quickly and efficiently on the day we say we will.

We also provide a free issue cutting service, press braking, fabrication and forging.

 



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