M1, T1 Steels

Steel name: M1, T1
Diagram No.: 2817
AISI/SAE designation: T1
Chemical composition in weight %:
Steel T1: 0.72% C, 0.39% Si, 0.27% Mn, 4.09% Cr, 1.25% V, 18.59% W
Steel M2: 0.85% C, 0.30% Si, 0.28% Mn, 4.15% Cr, 5.00% Mo, 1.85% V, 6.15% W
Steel group: High speed steels
Properties: No data
Applications: No data
Reference: Not shown in this demo version.

Heat Treatment
Hardening: No data
Tempering: See the diagram.
Diagram note: Influence of tempering temperature on hardness and unnotched Izod impact strength of grade T1 high-speed steel, austenitized at 1200°C (2350°F), and grade M2, austenitized at 1220°C (2225°F), respectively (after Grobe and Roberts).

Tempering Diagram

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