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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 annealed condition. die steel composition, steel composition, density of high carbon steel, d2 alloy steel, tool

AISI- D2 die steel
Class	High Carbon High chromium Steel
Type	Tool steel
Category	Cold Work Tool Steel
Grades	U.S ASTM A681, SAE J437, SAE J438, AISI D2. Germany DIN 1.2379 U.K B.S, BD2
Availability	In 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, density of high carbon steel, d2 alloy steel, tool Shear blades, die steel composition, steel composition, density of high carbon steel, d2 alloy steel, tool Stamping dies and die steel composition, steel composition, 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	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 is 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 ºF	in/inºF x10⁶	Temperature ºC	mm/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 heat treatment of d2 die steel is done with right d2 composition?

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

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.
Forging :- Forge at 900°C to 1100°C, cool slowly and Anneal immediately.
Annealing :- Anneal at 820°C to 865°C and then cool in furnace.
Tempering :- Normally three times tempering recommended.Temper at 150°C to 400°C and cool in air up.
Stress Relieving :- Stress Relieve at 650°C to 700°C and cool in air or furnace.

d2 Steel Composition