4140 Annealed is fine quality alloy steel used for brake die tooling, support tooling, die holders, short run stamping and bending dies.
4140 Annealed is fine quality alloy steel used for brake die tooling, support tooling, die holders, short run stamping and bending dies.
| C | CO | CR | MN | MO | NI | P | S | SI | V | W |
|---|---|---|---|---|---|---|---|---|---|---|
| 0.38 – 0.43 | 0.80 – 1.10 | 0.75 – 1.00 | 0.15 – 0.25 | 0.04 Max. | 0.04 Max. | 0.14 – 0.35 |
Flats • Hollowbar • Metric • Non-Standard • Rounds • Squares • Standard
| Bending Dies | Brake Die Tooling | Die Holders |
| Short Run Stamping | Support Tooling |
AFNOR 42 CD 4-France
DIN 1.7225-Germany
JIS SCM 4-Japan
JIS SCM 4 H-Japan
B.S. 708 M 40-United Kingdom
B.S. 709 M 40-United Kingdom
ASTM A322-US
ASTM A331-US
ASTM A505-US
ASTM A519-US
ASTM A547-US
MIL SPEC MIL-S-16974-US
SAE J404-US
UNS G41400-US
AISI 4140 Alloy Steel-US
AFNOR 40 CD 4-France
UNI 38 CrMo 4 KB-Italy
UNI 40 CrMo 4-Italy
UNI G 40 40 CrMo 4-Italy
SS 2244-Sweden
B.S. 708 A 42-United Kingdom
ASTM A646-US
SAE J412-US
SAE J770-US
| Treatment | Temperature Range | Cooling/Quenching | Notes |
|---|---|---|---|
| Annealing | 1100-1300° F | Air cool, | Hold 2 hrs, air cool. |
| Preheating | 1250-1300° F | Equalize | |
| Hardening | Atmosphere or Vacuum Furnace. | ||
| Tempering | (See Chart) | Tempering at 400-1200F (205-650C) for 1 hour per inch (25mm) of thickness at temperature is recommended (2 hrs min). Air cool to room temperature. |