D-7 Steel

D-7 Steel

Steel name: D-7
Diagram No.: 1768
UNS designation: T30407
AISI/SAE designation: D7
Chemical composition in weight %: 2.15-2.50% C, 0.10-0.60% Si, 0.10-0.60% Mn, 11.50-13.50% Cr, 0.70-1.20% Mo, 3.80-4.40% V
Steel group: Tool steels
Properties: No data
Applications: Burnishing tools, can dies, ceramic dies, coining dies, draw dies, extrusion dies, forming rolls, lamination dies, lathe centers, paper knives, punches, slitters.
Reference: Not shown in this demo version.

Heat Treatment
Hardening: 1900-2000° F/air. Allow to cool to 125-150° F before tempering. Soak time is 15 minutes per inch of thickness. Minimum of 30 minutes.
Tempering: Complete equalization of temperature throughout the tool is essential for good results. Double temper. Recommended temperature is 400-1000° F. Temper 1 hour per inch of thickness, 2 hours minimum.

Tempering Diagram

Price: 20.00 US $
Buy Online Tempering Diagram

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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