KeyLos 2738 MHH Steel

KeyLos 2738 MHH Steel

Steel name: KeyLos 2738 MHH
Diagram No.: 2586
DIN designation: ~26MnCrNiMo7
Chemical composition in weight %: 0.22-0.32% C, 0.15-0.55% Si, 1.20-1.60% Mn, 1.20-1.60% Cr, 0.45-0.70% Mo, 0.80-1.50% Ni, 0.10-0.20% V
Steel group:Plastic mould steels
Properties: KeyLos 2738 MHH represents the latest improvement of Lucchini RS steel grades traditionally dedicated to the plastic injection and compression moulds, developed with specific focus on the big sized blocks. Thanks to the accurate design of its chemical composition and to the special heat treatment procedure, KeyLos 2738 MHH is characterized by excellent hardenability across the block, minimizing the decrease of the hardness from surface to core, excellent ratio of hardness to toughness, very high thermal conductivity and excellent finishing properties.
Applications: Big sized injection and compression moulds for exterior and interior plastic components for automotive sector: in particular cavities for bumpers and dashboards. Home appliances: rear TV housing, copier housing, crates, dustbins, chairs et cetera.
Reference: Not shown in this demo version.

Heat Treatment
Hardening: 950 °C, polymer or water quench.
Tempering: See the diagram.
Diagram note: Tempering curve of a sample which has been austenized at 950 °C.

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.