Z-Tuff PM Steel

Z-Tuff PM Steel

Steel name: Z-Tuff PM
Diagram No.: 2860
> Chemical composition in weight %: 0.70% C, 7.50% Cr, 2.00% Mo, 1.50% Ni, 1.00% V
Steel group: PM tool steels
Properties: Z-Tuff PM is a powder metallurgy tool steel designed with toughness as the primary criteria.
Applications: General tool and die, stamping and forming, punches, powder compaction, fine blanking.
Reference: Not shown in this demo version.

Heat Treatment
Hardening: Methods include use of high pressure gas (minimum 4 bar preferred), salt bath, or oil. Quench rate from the hardening temperature range down to 1300°F (700°C) is critical to the development of optimum structure and properties. Part temperature can then be equalized at 1000-1100°F (540-595°C) after which cooling can continue to below 150°F (66°C) or “hand warm”. Step quenching in this manner will help to minimize distortion in larger section sizes.
Tempering: Tempering should be performed immediately after quenching. Temperatures in the range of 1000°F (540°C) to 1050°F (595°C) are generally used depending on the hardness required. Heat uniformly to the selected temperature and soak for 2 hours. Double tempering is absolutely necessary while triple tempering is recommended when hardening at 1950°F (1093°C) and over. Tempering temperatures of less than 1000°F (540°C) should not be used, and care must be taken to cool parts fully to room temperature between each temper.
Diagram note: No data

Tempering Diagram

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Other Steel Data links
Carbides in Steel
CCT and TTT Diagrams of Steels
CCT and TTT Diagram Calculating Service
Hardenability Diagrams of Steels
Hardenability Calculating Service
Macro Defects in Steel
Metal Etchants
Non-Metallic Inclusions in Steel
Semiconductor Etchants

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