ASSAB 518 Steel

ASSAB 518 Steel

Steel name: ASSAB 518
Diagram No.: 1990
DIN designation: 40CrMnMo7
Mat.No. (Wr.Nr.) designation: 1.2311
AISI/SAE designation: P20
Chemical composition in weight %: 0.40% C, 0.30% Si, 1.40% Mn, 1.90% Cr, 0.20% Mo
Steel group: Plastic mould tool steels
Properties: ASSAB 518 is a vacuum-degassed Cr-Mo alloy steel, supplied in prehardened condition and normally does not require further heat treatment. This eliminates the risks, cost and waiting time of heat treatment and avoids the associated possibility of distortion or even cracking.
Applications: Injection moulds for thermoplastics, extrusion dies for thermoplastics, blow moulds, mould/die frames and holders, machine and structural components.
Reference: Not shown in this demo version.

Heat Treatment
Hardening: 840-880°C/30-60 min/oil, hot bath (180-220°C)
Tempering: See the diagram.
Diagram note: The curve shown in the tempering graph is valid for Ø25 mm samples, austenitised at 850°C and quenched in oil.

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.