Stavax ESR Steel

Stavax ESR Steel

Steel name: Stavax ESR
Diagram No.: 2017
Mat.No. (Wr.Nr.) designation: 1.2083 ESR
AISI/SAE designation: 420 mod.
JIS designation: SUS 420J2
Chemical composition in weight %: 0.38% C, 0.90% Si, 0.50% Mn, 13.60% Cr, 0.30% V
Steel group: Plastic mould tool steels
Properties: No data
Applications: Moulding of corrosive plastics, e.g., PVC, acetates, and for moulds subjected to humid working/storage conditions. Moulding abrasive/ filled materials, including injection moulded thermosetting grades. Stavax ESR is recommended for moulds with long production runs, e.g., disposable cutlery and containers. Production of optical parts, e.g., camera and sunglass lenses. Moulding of medical components, e.g., syringes and analysis vials.
Reference: Not shown in this demo version.

Heat Treatment
Hardening: 1000–1050°C, but usually 1020°C–1030°C/Vacuum with sufficient positive pressure. High speed gas/circulating atmosphere. Fluidised bed or salt bath at 250–550°C, then cool in air blast. Warm oil, approx. 80°C.
Tempering: Temper at least twice with intermediate cooling to room temperature. The preferred tempering temperature is 250°C minimum. On exceptional occasion, the lowest temperature of 180°C is used for small simple inserts that require a hardness of 52-54 HRC.
Diagram note: The curves as shown in the tempering graph are valid for small samples. Actual hardness achieved after hardening and tempering depends on the mould size.

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

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.