Color Code: BLUE WITH WHITE STRIPE
Ameralloy-60 is an air hardening, cold work die steel that shows less distortion during heat treatment than water or oil hardening steels, and most high alloy air hardening die steels. A 6-inch cube of Ameralloy-60 will harden to Rockwell C 60 in still air. A major advantage is its low hardening temperature range of 1500°–1600°F, usually available only with oil hardening steels.
The minimum distortion characteristics of Ameralloy-60 make it perfectly suited for dies and punches in blanking and forming operations, or for tools where close size tolerance is critical.
Typical Analysis
- Carbon .70
- Manganese 2.10
- Silicon .30
- Chromium 1.00
- Molybdenum 1.35
- Sulfur .09
Heat Treatment
- Forging Ameralloy-60 should be heated slowly to the forging temperature of 2000°– 2025°F. Do not hot work below 1600°F. Cool slowly in the furnace or bury in Sil-o-cel, fine dry ashes, lime, expanded mica, or other insulating material.
- Annealing Ameralloy-60 may be annealed in either a controlled atmosphere furnace or packed in spent pitched coke, spent cast iron chips, lime, fine dry ashes, sand, or ground mica with approximately 10% burned charcoal added. Heat to 1325°–1375°F and hold approximately 4 hours for each inch of thickness. Cool very slowly at a rate of 20°F per hour to approximately 1000°F. Annealed hardness range is normally Brinell 235 to 245
- Hardening The hardening temperature range for Ameralloy-60 is 1500°–1600°F. Tools with simple shapes may be heated to the hardening temperature directly from room temperature. A preheat of 1200°–1250°F should be used for tools with intricate shapes. A slightly oxidizing furnace atmosphere should be used for hardening. Cool in still air or in an air blast.
- Tempering To obtain high hardness with minimum distortion, Ameralloy-60 should be tempered at temperatures between 300°–400°F. Tempering time varies with the size of the piece being hardened, but even the smallest tools should be tempered for a minimum of 1 hour. Refer to the hardening and tempering table to determine approximate hardness obtained from various tempering temperatures.
| Hardened from 1500°F | ||
|---|---|---|
| Tempering Temperature (F°) | Energy-Absorbed Hardness (Ft-Lb) | Rockwell C |
| As Quenched | 78 | 59 |
| 300° | 81 | 58.5 |
| 350° | 56 | 58 |
| 400° | 52 | 57 |
| 450° | 45.5 | 57 |
| 500° | 63.5 | 56 |
| 600° | 52 | 54 |
| 800° | 99.5 | 49.5 |
| 1000° | Beyond Machine Capacity | 45 |
| Hardened from 1600°F | ||
| As Quenched | 51 | 63 |
| 300° | 66 | 61 |
| 350° | 106 | 60 |
| 400° | 81 | 59 |
| 450° | 80.5 | 58 |
| 500° | 38 | 57 |
| 600° | 100 | 55 |
| 800° | 83.5 | 51 |
| 1000° | Beyond Machine Capacity | 48 |
Typical results. Actual data may vary. Not to be construed as maximum or minimum values for final design specification.
Available Shapes And Size
- Rounds
- Squares
- Flats
ROUNDS: Lengths precut to any size desired, or 10′-12′ R/L lengths. FLATS & SQUARES: Standard 8′ – 10′ R/L lengths. Wider widths and non-standards available upon request. Prompt forging service available.
Rounds Decarb Free Or Hot Rolled Annealed
| Hot Rolled Annealed | Pre-Machined | |||
|---|---|---|---|---|
| 1/2 | 1 | 2 | 4 | 7 |
| 5/8 | 1-1/8 | 2-1/4 | 4-1/2 | 7-1/2 |
| 3/4 | 1-1/4 | 2-1/2 | 5 | 8 |
| 7/8 | 1-3/8 | 2-3/4 | 5-1/2 | 9 |
| 1-1/2 | 3 | 6 | 10 | |
| 1-5/8 | 3-1/4 | 6-1/2 | ||
| 1-3/4 | 3-1/2 | |||
| 1-3/4 | 3-1/2 | |||
| 1-7/8 | 3-3/4 | |||
| 6 | ||||
| 6-1/2 | ||||
| 10 | ||||
Flats & Squares Decarb-Free Plus .015/.035
| 1/2 | 5/8 | 3/4 | 7/8 | 1 |
|---|---|---|---|---|
| x 1/2 | x 5/8 | x 3/4 | x 7/8 | x 1 |
| x 1 | x 1 | x 1 | x 1 | x 1-1/4 |
| x 1-1/2 | x 1-1/2 | x 1-1/2 | x 1-1/8 | x 1-1/2 |
| x 2 | x 2 | x 2 | x 1-1/4 | x 1-3/4 |
| x 2-1/2 | x 2-1/2 | x 2-1/2 | x 1-1/2 | x 2 |
| x 3 | x 3 | x 3 | x 1-3/4 | x 2-1/4 |
| x 4 | x 4 | x 4 | x 2 | x 2-1/2 |
| x 5 | x 5 | x 5 | x 2-1/2 | x 2-3/4 |
| x 6 | x 6 | x 6 | x 3 | x 3 |
| x 8 | x 8 | x 8 | x 3-1/2 | x 3-1/2 |
| x 10 | x 10 | x 10 | x 4 | x 4 |
| x 12 | x 12 | x 12 | x 5 | x 4-1/2 |
| x 6 | x 5 | |||
| x 8 | x 6 | |||
| x 10 | x 8 | |||
| x 12 | x 10 | |||
| x 12 | ||||
| 1-1/8 | 11-1/4 | 1-3/8 | 1-1/2 | 1-3/4 |
| x 1-1/8 | x 1-1/4 | x 1-3/8 | x 1-1/2 | x 1-3/4 |
| x 1-1/4 | x 1-1/2 | x 1-1/2 | x 1-3/4 | x 2 |
| x 1-1/2 | x 1-3/4 | x 1-3/4 | x 2 | x 2-1/4 |
| x 1-3/4 | x 2 | x 2 | x 2-1/4 | x 2-1/2 |
| x 4 | x 2-1/4 | x 2-1/4 | x 2-1/2 | x 2-3/4 |
| x 2-1/4 | x 2-1/2 | x 2-1/2 | x 2-3/4 | x 3 |
| x 2-1/2 | x 2-3/4 | x 2-3/4 | x 3 | x 3-1/2 |
| x 2-3/4 | x 3 | x 3 | x 3-1/2 | x 4 |
| x 3 | x 3-1/2 | x 3-1/2 | x 4 | x 4-1/2 |
| x 3-1/2 | x 4 | x 4 | x 4-1/2 | x 5 |
| x 4 | x 4-1/2 | x 5 | x 5 | x 6 |
| x 5 | x 5 | x 6 | x 6 | x 8 |
| x 6 | x 6 | x 8 | x 8 | x 10 |
| x 8 | x 8 | x 10 | x 10 | x 12 |
| x 10 | x 10 | x 12 | x 12 | |
| x 12 | x 12 | |||
| x 18-1/4 | ||||
| 2 | 2-1/2 | 3 | 4 | 5–6 |
| x 2 | x 2-1/2 | x 3 | x 4 | 5 x 5 |
| x 2-1/4 | x 2-3/4 | x 3-1/2 | x 4-1/2 | 5 x 6 |
| x 2-1/2 | x 3 | x 4 | x 5 | 5 x 8 |
| x 2-3/4 | x 3-1/2 | x 4-1/2 | x 6 | 5 x 10 |
| x 3 | x 4 | x 5 | x 8 | 6 x 6 |
| x 3-1/2 | x 4-1/2 | x 6 | x 10 | 6 x 8 |
| x 4 | x 5 | x 8 | x 12 | 6 x 10 |
| x 4-1/2 | x 6 | x 10 | ||
| x 5 | x 8 | x 12 | ||
| x 6 | x 10 | |||
| x 8 | x 12 | |||
| x 10 | ||||
| x 12 | ||||
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