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AISI M7
Category Steel
Class Tool steel
Type Molybdenum high speed steel
Designations  Germany: DIN 1.3348
United States: ASTM A600 , FED QQ-T-590 , UNS T11307

Composition
ElementWeight %
C  0.97-1.05 
Mn  0.15-0.40 
Si  0.20-0.55 
Cr  3.50-4.00 
Ni  0.3 
Mo  8.20-9.20 
W  1.40-2.10 
V  1.75-2.25 
Cu  0.25 
P  0.03 
S  0.03 

Mechanical Properties
Properties Conditions 
T (°C)Treatment
Density (×1000 kg/m3) 7.95 25  
Poisson's Ratio 0.27-0.30 25  
Elastic Modulus (GPa) 190-210 25  

Thermal Properties
Properties Conditions 
T (°C)Treatment
Thermal Expansion (10-6/ºC) 9.5  20-260 more  
Glossary
Mechanical Engineers Outlook

Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.

STEM Career Outlook

Wages, employment opportunities, and growth projections for STEM jobs.

Selecting the Right 3D Printer

Discover how to choose the right 3D printer for your needs and the key performance attributes to consider.

CNC Machining Design Guide

Optimize your designs, reduce machining time, and lower your costs.