SS2541, THG2000, MCG 4M, QRO90 Steels

SS2541, THG2000, MCG 4M, QRO90 Steels

Steel name: SS2541, THG2000, MCG 4M, QRO90
Diagram No.: 2015
Chemical composition in weight %:
SS2541 steel: 0.37% C, 0.30% Si, 0.70% Mn, 1.40% Cr, 1.40% Ni, 0.20% Mo, 0.06% V
THG2000 steel: 0.39% C, 0.90% Si, 0.40% Mn, 5.30% Cr, 0.15% Ni, 1.20% Mo, 0.90% V
MCG 4M steel: 0.30% C, 0.30% Si, 1.20% Mn, 2.30% Cr, 4.00% Ni, 0.80% Mo, 0.80% V
QRO90 steel: 0.38% C, 0.30% Si, 0.75% Mn, 2.60% Cr, 0.15% Ni, 2.30% Mo, 0.90% V
Steel group: Tool steels
Properties: No data
Applications: No data
Reference: Not shown in this demo version.

Heat Treatment
Hardening: See the table.
Tempering: See the table.
Diagram note: Hardness of the steels, austenitized 30 min at 1020ºC/1030ºC/850ºC (THG2000 and MCG 4M/QRO90/SS2541), air quenched and tempered twice for 2 hours (once for 1 hour for SS2541) at different temperatures.

Tempering Diagram

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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

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