| Customization: | Available |
|---|---|
| Type: | Round |
| Standard: | AISI, ASTM, DIN, JIS, GB, BS |
|
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S7 Tool Steel
S7 is recommended forapplications that require a high level of shock resistance, medium
hot-work properties and/or ease of machining. Short-run dies used in cold-forming, blanking
and bending also use S7.
Heat Treatment
This is the process of heating metal to an elevated temperature to obtain change in properties
of metallurgical structure. The heat treatment for S7 is as follows:
| Forging | Annealing | Preheating | Hardening | Tempering |
| 1800-2100°F | 1500-1600°F | 1725-1850°F | 400-1150°F |
Temper S7 Tool Steel
Temper S7 for 1 ½ - 2 hours for each inch of greatest cross-section. Base your tempering
temperature on the end use of the metal: 400°F for cold-working and similar applications,
and 900°-1000°F for hot-work applications. Tempering at temperatures less than 400°F
is not recommended.
Hardness of S7 Tool Steel
Hardness tests determine the various properties of a specific metal, which includes its resistance
to wear, toughness, and formability. Two widely used tests are Rockwell C and Brinell. Rockwell C
is measured in the unit HRC, which is the measurement used below.
S7 Tool Steel Supplier Stocks S7 in the Following:
Decarb Free*: S7 - Rounds, Flats, Squares, & Plate
Drill rod in standard 36" lengths
*Decarb Free is material that has been ground top and bottom and is oversized to finish on the
thickness or diameter. (Thickness or diameter oversize approx +.015 to +.030. Thinner material,
less than 1 inch, could have more stock on the thickness. Width oversize approx +.030 to +.090,
depending on the vendor.)
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