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COLD WORK STEEL

  

Shape : Grade :

HCHCR-D3 Steel

Standards : X210Cr12

HCHCR-D3

DIN 2080
AISI D3

AFNOR Z210CW12-01

C Si Mn P S Cr V
2.00 - 2.35 0.10 - 0.60 0.10 - 0.60 0.03 0.03 11.0 - 13.0 1.00
Virat Special Steels HCHCR-D3

 

Grade Brief:

Virat Special Steels is the largest Supplier & Stockiest of HCHCR-D3 Steel in India.
D3 Steel Having 12 % ledeburitic chromium tool steel with great wears resistance . Basically utilized as cutting tools for sheets up to 4 mm thickness, trimming dies, blanking dies for paper and plastics, shear cutting edges and rotational shear edges for sheet thicknesses up to 2 mm.


Mode of Supply

Virat Special Steels is the largest stockiest and supplier of HCHCR D3 Steel in flat, square and round bar. We provide steel in all sizes as your requirements. HCHCR D3 die steel is available in flat, square and round shape. Consult our team who will assist you for HCHCR D3 steel query.

 

hchcr-d3-steel

Steel Properties

D3 Steel having properties of High Carbon 2% and High chromium 12 % tool steel with high wear resistance. Its supply condition is normally annealed to easy machining which recommended hardness is 57-58 HRC after making the dies & tools.

 

Mechanical Properties:

 

Impact Toughness 28 J/cm2
Hardness 58-64 HRC
Poisson’s Ratio 0.27-0.30
Modulus of elasticity 190-210 GPa

 

Physical Properties

The physical properties can vary slightly depending on the specific composition and heat treatment of the D3 steel. Its always recommended to refer to the manufacturer’s specifications for precise information.

 

Coefficient of thermal expansionat °C 20-100 20-200 20-300 20-400 20-500 20-600 20-700
10-6 m/(m*K) 10.7 11.6 12.3 12.6 12.9 13.2 13.3

 

Thermal Conductivity at °C 20 350 700
W/(m*K) 16.6 20.5 24.3

 

Heat Treatment & Processes:

Heat Treatment

Heat treatment Process includes the parameters like temperatures, the rate of heating, cooling, soaking time ,the type of furnace, quenching medium, and workpiece transfer facilities.

 

Forging:

D3/ DIN 2080 / AISI D3 should be pre-heated at 900-950°C, then increase to 1050-1100°C. Soak until evenly warm. At high temperatures, D3/ DIN 2080 / AISI D3 tool steel becomes quite hard. As a result, the initial hammer blows must be mild, and the temperature must not go below 1020°C until the metal begins to flow. The final forging temperature should not be less than 900°C.

 

Stress Relieving:

The Stress relieving must be done after rough machining. To stress relief, heat the component to approx 600-650°C in the case of D3/ DIN 2080 / AISI D3 steel. Then it should be Soaked well and cool in the furnace or in the air.

 

Normalizing:

The hardness after normalization is 55 HRC. The specimen gets tougher after normalizing than after annealing. This is because a higher number of undissolved carbide particles develop, causing the specimen to become brittle.

 

Annealing:

It is necessary to heat gently and consistently to 900°C for the annealing of D3/ DIN 2080 / AISI D3 steel. Then it must be soaked for three to four hours before cooling in the furnace till room temperature. Reheat to 800–1040°C, then soak for another three–four hours. Allow the furnace to drop to room temperature.

 

Welding:

D3/ DIN 2080 / AISI D3 tool steel Welding process should be avoided, if possible Due to the high risk of crack formation welding. However when welding is essential, the following guides must be followed:
- Welding of soft annealed D3/ DIN 2080 / AISI D3 tool steel (Preheat to 300 – 500°C, Weld at 300-500°C, Immediately stress relieve) Electrode: Cr-Mo alloy electrode for welding structural steel.
- Welding in connection with hardening of soft annealed D3/ DIN 2080 / AISI D3 tool steel.(Heat to austenitizing temperature, Cool to approx. 500°C, Weld at approx. 500°C, Cool to approx. 100°C in the same way as at normal hardening, then temper to desired hardness). Double tempering will reduce the risk of crack formation. Electrode: Hard-facing electrode.)
- Repair welding of D3/ DIN 2080 / AISI D3 tool steel is hardened and tempered in condition.(Preheat to the tempering temperature (min. 200°C) previously used, Weld at tempering temperature, Heat immediately to tempering temperature, but max. 300°C. Soaking time 3 hours, Cool in the air to approx. 80°C, Heat to tempering temperature. Soaking time 2 hours.) Electrode: Hard-facing electrode.

 

Soft annealing °C Cooling Hardness HB
810 - 850 Furnace max. 250

 

Stress-relief annealing °C Cooling
approx. 670-720 Furnace

 

Hardening °C Quenching Hardness after quenching HRC
940 – 970 Oil 64.5
950-980 Air (up to 30 mm thickness) 64.5

 

Tempering °C after Quenching 100 200 300 400 500 600
HRC 63.5 61.5 58 57.5 55 47

D3 Steel
DIN 2080

 

Application

HCHCR D3 is used in cold Dies & tooling application that required the achievement of high degree of accuracy in hardening & tempering, such as dies drawing, forming cold rolls, powder metal tooling and blanking and trimming dies, blanking dies for paper and plastics, shear blades , cold die punches , Ejector pins etc.


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Addition to other Grades:

HCHCR-D2 Steel , HCHCR-D3 Steel , P20+Ni Steel , P20 Steel , DB6 Steel , H13 Steel, H11 Steel, H21 Steel, H10 Steel, H12 Steel, M2 Steel, M35 Steel, M42 Steel, T1 Steel, DIN 2379 Steel, DIN 2080 Steel, DIN 2738 Steel, DIN 2311 Steel, DIN 2714 Steel, DIN 2344 Steel , DIN 2343 Steel, DIN 2581 Steel, DIN 2365 Steel, DIN 2606 Steel, DIN 3343 Steel, DIN 3243 Steel, DIN 3247 Steel, DIN 3355 Steel AISI D2 Steel, AISI D3 Steel, AISI P20+Ni Steel, AISI P20 Steel, AISI L6 Steel, AISI H13 Steel, AISI H11 Steel, AISI H21 Steel, AISI H10 Steel, AISI H12 Steel, AISI M2 Steel , AISI M35 Steel, AISI M42 Steel , AISI T1 Steel

Products

 

  • C-545, Sector-37, Pace City - II, Gurgaon 122001 (Haryana) India
  • C-146, Focal Point, Phase - V, Ludhiana 141010 (Punjab) India

 

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