D2 Steel Composition | Chemical composition of steel | D2 Die Steel

D2 steel composition | chemical composition of steel | D2 steel.

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D2 steel composition | chemical composition of the steel.

What is AISI D2 Die Steel?

AISI D2 steel is an air and oil hardening cold work tool steel, D2 Steel Composition, Chemical composition of steel, D2 Die Steel

which offer great dimensional stability during heat treatment with good hardness and abrasion resistance.

It is normally supplied in the annealed condition. die steel composition, steel composition, the density of high carbon steel, d2 alloy steel, tool

                  AISI- D2 die steel

ClassHigh Carbon High chromium Steel
TypeTool steel
CategoryCold Work Tool Steel
Grades

U.S              ASTM A681, SAE J437, SAE J438, AISI D2.

Germany      DIN 1.2379

U.K              B.S,  BD2

AvailabilityIn Stock

 

What are the applications of D2 die steel?

The main application of  D2 die steel based on the type of required work is as follows:-

  • Forming rolls. D2 Steel Composition, Chemical composition of steel, D2 Die Steel
  • Tools, Molds for plastic mold industries.
  • Punches. D2 Steel Composition, Chemical composition of steel, D2 Die Steel
  • Knives. die steel composition, steel composition, the density of high carbon steel, d2 alloy steel, tool
  • Shear blades. die steel composition, steel composition, the density of high carbon steel, d2 alloy steel, tool
  • Stamping dies. die steel composition, steel composition, the density of high carbon steel, d2 alloy steel, tool
  • Blanking dies.

What is the D2 steel composition or chemical composition of steel?

The d2 steel composition or chemical composition of steel is as given below:-

                       D2 steel composition elements.
Elements           Weight in %
Carbon               1.55
Chromium                12.0
Molybdenum               0.80
Vanadium               0.90
Iron              Balance
Silicon               0.25
Manganese               0.35

What are the physical properties of D2 die steel?

The physical properties of d2 steel are as follows:-

Physical Properties:

Density          0.278 lb/in3 (7696 kg/m3)
Specific Gravity                      7.75
Modulus of Elasticity             30 x 106 psi (207GPa)
Thermal conductivity       24 Btu/ft/hr/°F  41.5 W/m/°K
Machinability      55% to 65% of a 1% carbon steel

What is the coefficient of thermal expansion of d2 die steel?

                                     Coefficient Of Thermal Expansion 58-60HRC
Temperature   ºFin/inºF x106Temperature  ºCmm/mmºCx106
    100-500    5.72    38-260   10.30
    100-800    6.63    38-428   11.90
    100-1000    6.82    38-535   12.30
    100-1200    6.85    38-650   12.35
    100-1500    6.90    38-815   12.40

What about tempering temperature of d2 tool steel?

d2 die steel tempering:

  Temperature           D2 tool steel
   ºF ºC                  HRC
 280 150                63 – 64
 375 200                61 – 62
 410 220                57 – 62
 560 300                58 – 60
 750 400                55 – 58

How is the heat treatment of d2 die steel done with the right d2 composition?

There are the various process involved during the heat treatment of d2 die steel with the right d2 composition, is as:-

  1. Hardening:- Preheat at 650 °C – 850 °C raise to 1000 °C -1050°C and Cool in the Air, or oil or into a salt bath held at Hot 500 °C – 550 °C and then Cool Air Up.
  2. Forging:- Forge at 900°C to 1100°C, cool slowly, and Anneal immediately.
  3. Annealing:- Anneal at 820°C to 865°C and then cool in furnace.
  4. Tempering:- Normally three times tempering is recommended. Temper at 150°C to 400°C and cool in air up.
  5. Stress Relieving:- Stress Relieve at 650°C to 700°C and cool in air or furnace.

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