Color Code: BLACK
Dura-Form is a heat treated tooling alloy which is oil-quenched and tempered to develop a full balance of mechanical properties. Dura-Form heat treated alloy has every requisite for excellent brake die service, high wear resistance, adequate toughness, high resistance to impact, and good machinability. Dura-Form is stress relieved before the final gag straightening process to ensure a minimum of residual stresses, and to eliminate warping and bowing.
Applications
- Bead-forming dies
- Bending dies
- Corrugating dies
- Double-decker dies
- Flanging dies
- Multi vee dies
- Offset dies
- Seaming dies
Typical Analysis
- Carbon .48/.51
- Manganese .87/1.05
- Chromium 1.00/1.25
- Vanadium .20/.30
- Silicon .24/.35
- Molybdenum .25/.35
Features And Advantages
- Heat treated–ready to use
- Free machining
- Machine straightened
- High compressive strength
- Controlled analysis
- Hardened to Brinell 248–293
- High carbon content insures greater resistance to wear
- Machines to a smooth finish without grinding
Heat Treatment
- Forging 1900°–2100°F, cool slowly
- Annealing 1400°–1450°F, Brinell 185–195
- Normalizing 1600°–1650°F
- Hardening 1500°–1600°F, oil-quench
- Tempering 300°– 1300°F, average hardness after heat treatment Brinell 241–601
Typical Mechanical Properties
| Draw | 300°F | 500°F | 800°F | 1200°F | 1300°F |
| Tensile | 340,000 | 295,000 | 231,000 | 141,500 | 120,000 |
| Yield | psi 327,000 | 256,000 | 214,000 | 129,000 | 112,000 |
| Elongation | 9% | 12% | 11% | 21% | 24% |
| Red. area | 24% | 31% | 33% | 56% | 60% |
| BHN | 601 | 560 | 462 | 275 | 248 |
| Rockwell C | 58 | 56 | 47 | 28 | 25 |
Dura-Form Shapes And Sizes Available For Immediate Shipment
| Squares | Flats | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 3 | 1/2 | 3/4 | x 3-1/2 | x 4 | x 4 | x 4-1/2 | 3 | |
| 5/8 | 3-1/2 | x 2 | x 1 | x 4 | x 4-1/2 | x 4-1/2 | x 5 | x 4 | |
| 1-1/8 | 4 | x 3 | x 2 | x 4-1/2 | x 5 | x 5 | x 6 | x 5 | |
| 1-1/4 | 4-1/2 | x 4 | x 3 | x 5 | x 6 | x 6 | x 8 | x 6 | |
| 1-1/2 | 5 | 5/8 | x 4 | x 6 | x 8 | x 8 | 2-1/2 | 4 | |
| 1-3/4 | 5-1/2 | x 2 | 1 | 1-1/4 | 1-1/2 | 2 | x 3 | x 5 | |
| 2 | 6 | x 2-1/2 | x 1-1/2 | x 2 | x 2 | x 2-1/2 | x 3-1/2 | x 6 | |
| 2-1/4 | 8 | x 4 | x 2 | x 2-1/2 | x 2-1/2 | x 3 | x 4 | x 8 | |
| 2-1/2 | 10 | x 4-1/2 | x 2-1/2 | x 3 | x 3 | x 3-1/ | x 5 | ||
| 2-3/4 | x 3 | x 3-1/2 | x 3-1/2 | x 6 | |||||
Lengths: 20’ R/L. Available for immediate shipment.