Metalssteel

Alloy Steel

Quenched and tempered alloy steel used to reach property classes 10.9 and 12.9.

Properties

Family
Metals
Category
steel
Density
7.85 g/cm³ · 7850 kg/m³
Typical property classes
10.9, 12.9

Applicationswhere alloy steel is normally specified

Automotive suspensionHigh-preload jointsPressure vesselsHeavy machinery

Property classesstrength classes used with alloy steel

All classes

Practical notes

  • 12.9 is sensitive to hydrogen embrittlement when plated

Browse