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D2
D2 Product Guide
Applications | Specifications | Mechanical and Chemical Data | Tolerances
Overview
High-carbon, air-hardening tool steel that provides good resistance to wear. D-2 provides a good blend of toughness, strength, and affordability. Typically used in rolls, punches, shear knives, food processing knives,
Common Trade Names
UNS T30402, AISI Type D2, High Carbon Tool Steel, High Chromium Tool Steel, Aristocrat
Other Resources
Weight Calculator | Mill Test Reports
Products
D2 Drill Rod | D2 Rectangle Bar | D2 Square Bar
| D-2 Tool Steel Heat Treatment | ||||
Hardness | Heat Treat Temp. | Quench Medium | Applications | Advantages |
|---|---|---|---|---|
As Shipped: Rockwell 97-102B
After Heat Treating: Rockwell 59-62C | 1600°-1650°F | Air or Oil | D2 can be used in the same applications as both O1 and W1. | D2 has high wear resistance, good toughness, and low distortion. It is often chosen when long tool life is required. |
| Physical Properties D2 | |||||
| | |||||
|---|---|---|---|---|---|
| Density | 0.278 lb/in3 | ||||
| Ultimate Tensile Strength | 110 ksi | ||||
| Yield Tensile Strength | 68 ksi | ||||
| Shear Modulus | 11,000 ksi | ||||
| Shear Strength | 67 ksi | ||||
| Fatigue Strength | 45 ksi | ||||
| Hardness Rockwell | Brinell | B97-102 | 220-255 | ||||
| Elongation at Break Percentage | 16% | ||||
| Reduction of Area(remove) | % | ||||
| Modulus of Elasticity | 30,000 ksi | ||||
| Poisson's Ratio | 0.29 | ||||
| Machinability Percentage | 50% | ||||
| Melting Point | 2,540-2,650 °F | ||||
| Specific Heat | 1.1 x 10^-1 BTU/lb-°F | ||||
| Thermal Conductivity | 216 BTU-in/hr-ft^2-°F | ||||
| Electrical Conductivity | 4.3% IACS | ||||
|
Chemistry Information
|
|
Element |
Percentage |
| C | 1.4 - 1.6 |
| Cr | 11 - 13 |
| Co | 1 max |
| Mn | 0.6 max |
| Mo | 0.7 - 1.2 |
| P | 0.03 max |
| Si | 0.6 max |
| S | 0.03 max |
| V | 1.1 max |
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