D2 steel is an air hardening, high-carbon, high-chromium tool steel. It has high wear and abrasion resistant properties. It is heat treatable and will offer a hardness in the range 55-62 HRC, and is machinable in the annealed condition. D2 steel shows little distortion on correct hardening. D2 steel’s high chromium content gives it mild corrosion resisting properties in the hardened condition.
If you need better machinability then consider A2 tool steel which has a chromium content of 5% and is more readily machinable.
1.Applications for D2 Steel:
- Stamping or Forming Dies
- Punches
- Forming Rolls
- Knives, slitters, shear blades
- Tools
- Scrap choppers
- Tyre shredders
2.Typical chemical composition of AISI D2 Steel
| Grade | C | Si | Mn | P | S | Cr | Mo | V |
| H13 | 0.32~0.45 | 0.80~1.20 | 0.20~0.50 | 0.030Max | 0.030Max | 4.75~5.50 | 1.10~1.75 | 0.80~1.20 |
| SKD61 | 0.35~0.42 | 0.80~1.20 | 0.25~0.50 | 0.030Max | 0.020Max | 4.80~5.50 | 1.00~1.50 | 0.80~1.15 |
| 4Cr5MoSiV1 | 0.32~0.42 | 0.80~1.20 | 0.20~0.50 | 0.030Max | 0.030Max | 4.75~5.50 | 1.10~1.75 | 0.80~1.20 |
| STD61 | 0.32~0.42 | 0.80~1.20 | ≤0.50 | 0.030Max | 0.030Max | 4.50~5.50 | 1.00~1.50 | 0.80~1.20 |
| X40CrMoV5-1 | 0.36~0.44 | 0.80~1.20 | 0.20~0.50 | 0.030Max | 0.030Max | 4.80~5.50 | 1.20~1.50 | 0.85~1.15 |
3. Supply of ASTM D2 Tool Steel round bar and steel plate
OTAI SPECIAL Steel is a Chinese D2 tool steel stockholders and suppliers. And we supply D2 Tool Steel | 1.2379 |Cr12Mo1V1 | SKD11 cold Work Steel |X160CrMoV12 Special tool steel round bar and flat sections(D2 steel round bar and steel plate) which can be sawn cut to your required sizes. What’s more, ground steel bar can be supplied, providing a high quality tool steel precision ground tool steel bar to your required tolerances. D2 Tool Steel | 1.2379 |Cr12Mo1V1 | SKD11 cold Work Steel |X160CrMoV12 Special tool steel is also available produced as Ground Flat Stock / Gauge Plate, in standard and non standard sizes.
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- Round
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- sheet
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- Square
4. Forging of ASTM D2 Tool Steel | 1.2379 |Cr12Mo1V1 | SKD11 cold Work Steel |X160CrMoV12 Special steel plate material
Heat slowly and uniformly to 700°C then more rapidly to 900/1040°C. Do not continue to forge D2 below 925°C. Reheat as often as necessary to maintain proper forging temperature. After forging cool slowly. This is not an annealing process. After the forging is cold, it must be annealed as described below.
5. Annealing of D2 Steel
Heat uniformly to 843/871°C, then slow furnace cool at a rate of not more than 10°C per hour. After annealing D2 a maximum hardness of 240 Brinell may be achieved.
6. Hardening of D2 Steel
D2 tool steel is extremely sensitive to overheating during hardening – do not overheat.
Pre heat slowly to 750/780°C and soak. Continue heating to the final hardening temperature of 1000/1030°C and allow the component to equalise. Quench in oil or cool in air.
7. Tempering of D2 Tool Steel | 1.2379 |Cr12Mo1V1 | SKD11 cold Work Steel |X160CrMoV12 Special steel plate material
Tool steels can be tempered at 204ºC (400ºF) for achieving Rockwell C hardness of 61 and at 537ºC (1000ºF) for a Rockwell C hardness of 54. The second tempering should be a repetition of the first. And all data only for your reference.
8. Processing of D2 Tool Steel | 1.2379 |Cr12Mo1V1 | SKD11 cold Work Steel |X160CrMoV12 Special steel plate
Steel round bar and flat sections can be cut to your required sizes. steel ground bar can also be supplied, providing a high quality tool steel precision ground tool steel bar to your required tolerances. And tool Steel is also available as Ground Flat Stock / Gauge Plate, in standard and nonstandard sizes.
9.More Technical Details of D2 Steel
Contact our experienced sales team who will assist you with your tool steel enquiry by email or Telphone. ASTM/AISI/SAE D2 steel questions and enquiry will be reply in 24 hours.[/vc_column_text][/vc_column][/vc_row]
Email: jack@otaisteel.com
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