stocked in flats, squares, and rounds
A high carbon-high chromium type tool steel, D2 combines exceptional wear resisting properties with maximum toughness at high hardness in sections of all sizes. Minimum tendency to distort during heat treatment makes D2 popular where intricate die designs are involved, or in any application requiring extreme stability during heat treatment. D2 is widely used in long run, high production applications where long die life is desired.
| Chemical Analysis |
| Carbon |
1.45/1.50 |
| Manganese |
.60
Max. |
| Phosphorus |
.030
Max. |
| Sulfur |
.030
Max. |
| Silicon |
.60
Max. |
| Chromium |
11.00/13.00 |
| Vanadium |
1.10
Max. |
| Tungsten |
~ |
| Molybdenum |
.70/1.20 |
| Cobalt |
1.00
Max. |
Slitter knives, planer knives, shear blades, plastic granulator knives, punches, dies, form rolls, rolls, thread roll dies.
Preheat to 1250° F and soak thoroughly. Then raise to 1950° F - 2050° F. Do not forge or roll below 1700° F. Cool slowly from the forging or rolling temperature. Do not normalize.
Heat slowly to 1600° F - 1650° F, and hold for uniformity. Cool at a rate of 20° F per hour to 900° F. Furnace cool slowly. Expected Brinell Hardness 229 max.
Preheat to 1200° F – 1250 °F, soak until uniformly heated, and either transfer or raise furnace temperature to 1850° F, and hold one hour per inch of greatest thickness. Quench into 150° F oil.
Temper immediately after quenching, before the part has cooled to below 150° F. D-2 parts should always be double tempered and the parts should be held a minimum of two hours per inch of greatest thickness. For most applications the tempering range for the D-2 analysis is 900° F - 960° F. The following tempering table may be used as a guide. However, since ½” diametric specimens were used for this test, it may be found that heavier sections are several points lower.
| Tempering Temp. °F |
Hardness Rc |
| As-quenched |
64.0 |
| 400 |
60.0 |
| 500 |
58.0 |
| 600 |
58.0 |
| 700 |
58.0 |
| 800 |
57.0 |
| 900
–960 |
58.0/60.0 |
| 1000 |
56.0 |
| 1100 |
48.0 |
| 1200 |
40.0 |
Please
note: Technical data is compiled from various sources and is for
reference only and not intended for design purposes. Tennessee Die Supply Co., Inc.
makes no claim as to the accuracy to the data contained in this web site. Tennessee Die Supply Co., Inc.'s liability will only be
the replacement cost of the steel.