Dievar Steel

Dievar Steel

Steel name: Dievar
Diagram No.: 2735
Chemical composition in weight %: 0.35% C, 0.20% Si, 0.50% Mn, 5.00% Cr, 2.30% Mo, 0.60% V
Steel group: Hot work tool steels
Properties: Uddeholm Dievar is a high performance chromium-molybdenum-vanadium alloyed hot work tool steel which offers a very good resistance to heat checking, gross cracking, hot wear and plastic deformation.
Applications: The steel is suitable in high demand hot work applications like die casting, forging and extrusion. The property profile makes it also suitable in other applications, e.g. plastics and High Performance Steel.
Reference: Not shown in this demo version.

Heat Treatment
Hardening: Preheating temperature: 600–900°C (1110– 1650°F). Normally a minimum of two preheats, the first in the 600–650°C (1110– 1200°F) range, and the second in the 820– 850°C (1510–1560°F) range. When three preheats are used the second is carried out at 820°C (1510°F) and the third at 900°C (1650°F). Austenitizing temperature: 1000–1030°C (1830– 1890°F). Quenching media: High speed gas/circulating atmosphere. Vacuum (high speed gas with sufficient positive pressure). An interrupted quench is recommended where distortion control and quench cracking are a concern. Martempering bath or fluidized bed at 450– 550°C (840–1020°F), then cool in air. Martempering bath or fluidized bed at 180–220°C (360–430°F) then cool in air. Warm oil.
Tempering: Choose the tempering temperature according to the hardness required by reference to the tempering graph below. Temper minimum three times for die casting dies and minimum twice for forging and extrusion tools with intermediate cooling to room temperature. Holding time at temperature minimum 2 hours. Tempering in the range of 500–550°C (930– 1020°F) for the intended final hardness will result in a lower toughness.
Diagram note: No data.

Tempering Diagram

Price: 20.00 US $
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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

Disclaimer: The material data is a central depository of information based on global actual tests and calculated software data that is available to the public for a fee. The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other puposes. There is no representation that the recipient of this literature will receive updated editions as the become available.