1.2379 D2 SKD10 Tool Steel Vacuum Hardened Machined Block
1.2379 D2 SKD10 Tool Steel Vacuum Hardened Machined Block
D2 Tool Steel Introduction:
D2 steel is a high carbon – high chromium air hardening tool steel, heat treatable to 60-62 HRC. D2 offers excellent wear and abrasion resistance, due to large volumes of carbides in the micro-structure. D2 steel is widely used in long production cold work applications requiring very high wear resistance and high compression strength. It is machinable in the annealed condition, and, like other air hardening tool steels, exhibits minimal distortion in heat treat. D2 steel is available in de-carb free rounds, flats, and squares, as well as ground flat stock and drill rod.
D2 Tool Steel Applications:
Typical applications for D2 steel are blanking, forming, and trim dies, gages, slitting cutters, wear parts, lamination dies, thread rolling dies, drawing dies, rotary cutting dies, knurls, bending dies, gages, shear blades, burnishing tools, rolls, machine parts, master parts, injection screw and tip components, seaming rolls, extrusion dies, tire shredders, scrap choppers, Stamping dies, Forming Dies, Punches, Forming Rolls, Knives, slitters, shear blades, Tools, Scrap choppers, Tyre shredders, etc.
D2 Tool Steel All Grades Comparison:
| ASTM | Material No. | DIN | EN | JIS |
| D2 | 1.2379 | X155CrVMo12-1 | X160CrMoV121 | SKD10 |
D2 Tool Steel Chemical Composition(%)
| C | Si | Mn | P | S | Cr | Mo | V |
| 1.40-1.60 | 0.10-0.60 | 0.10-0.60 | 0.030 max | 0.030 max | 11.0-13.0 | 0.70-1.20 | 0.50-1.10 |
D2 Tool Steel Quality Standard:
ASTM A681 – 08 Standard Specification for Tool Steels Alloy.
D2 Tool Steel Size and Tolerance
| Products Data（Unit mm） | |||||||||
| Products | Width | Width Tolerance | Thickness Tolerance | Straightness | Perpendicularity | Flatness | Parallelism | Plate Surface Roughness | Plate Side Roughness |
| Precision Plate | <600 | 0 to +0.1 | 0 to +0.1 | 0.02/100 | 0. 01/100 | 0. 01/100 | 0. 02/100 | Ra <1.6 or Rz<6.3 | Ra<3. 2 or Rz<12.5 |
| 600-1000 | 0 to +0.15 | 0 to +0.1 | |||||||
| 1000-2000 | 0 to +0. 2 | 0 to +0.15 | |||||||
| Polished Plate | <600 | 0 to +0. 5 | 0 to +0.5 | 0. 06/100 | 0. 05/100 | Ra<1.6 or Rz<6.3 | Ra<6. 3 or Rz<25 | ||
| >600 | 0 to +1 | ||||||||
| Polished Plate for Heat-treat | <600 | +0.3 to +0.8 | +0. 3 to +0.6 | 0. 06/100 | 0. 05/100 | Ra<3.2 or Rz<12.5 | |||
| >600 | 0 to +1 | ||||||||
| Grounded Plate | <600 | -1 to +1 | -2 to 0 | / | 0. 05/100 | Ra<3. 2 or Rz<12.5 | Ra<6. 3 or Rz<25 | ||
| >600 | -1 to +1 | -3 to 0 | |||||||
| Other size or requirement please send to info@fushunspecialsteel.com | |||||||||
D2 Tool Steel Heat-Treatment Option
1 Annealed: Heat slowly to 1550°-1600°F, hold until entire mass is heated through, and cool slowly in the furnace (40°F per hour) to about 1000°F, after which cooling rate may be increased.
2 Vacuum heat treatment : Quenched and Tempered:
| Type | Preheat Temperature,°F (°C) | Salt Bath | Controlled Atmosphere Furnaces | Austenitizing Time (minutes) | Quench Medium | Tempering Temperature,°F (°C) | Minimum Hardness,RC |
| D2 | 1500 (816) | 1825 (996) | 1850 (1010) | 10-20 | Air | 400 (204) | 59 |
D2 Tool Steel Surface Option
hot rolled, forged, blasted or pickled, cold drawn, machined, ground, precision ground and polished
D2 Tool Steel Smelting Option
1 EAF+VLF: Electric Arc Furnace +Vacuum Ladle Furnace
2 EAF+ESR: Electric Arc Furnace + Electro Slag Remelting
D2 Tool Steel Delivery Option
Package: Plastic material bundled ; wooden case ; wooden/steel pallet ; client’s requirement
Payment: Paypal / TT
Transport: DHL / FEDEX / UPS / EMS
D2 Tool Steel Mill′s test certificate:
EN 10204/3.1 with all relevant data reg. chem. composition, mech. properties and results of testing.
