CrMo is a combined steel containing chromium and molybdenum.

CrMo composition

Chromium Cr: 0.90～1.20

Molybdenum Mo: 0.15～0.25

CrMo bonded steel classification

Steel used as mechanical parts and various engineering components and containing one or several certain amounts of alloying elements.

It can be divided into ordinary alloy structural steel and special-purpose alloy structural steel. The former includes low-alloy high-strength steel, low-temperature steel, ultra-high-strength steel, carburized steel, quenched and tempered steel and non-quenched and tempered steel; the latter includes spring steel, ball bearing steel, free-cutting steel, cold stamping steel, etc.

CrMo bonded steel properties

Require high yield strength, tensile strength and fatigue strength, as well as sufficient plasticity and toughness.

Generally, electric arc furnaces and oxygen top-blown converters are used for smelting. For demanding applications, out-of-furnace refining, electroslag remelting or vacuum treatment, vacuum induction furnace smelting or double vacuum smelting, and appropriate heat treatment are used.

This type of steel has a very high alloying element content and mainly includes corrosion-resistant steel, heat-resistant steel, wear-resistant steel, magnetic steel and special steel with other special physical and chemical properties.

Uses of CrMo bonded steel

Alloy structural steel is widely used in structures such as ships, vehicles, aircraft, missiles, weapons, railways, bridges, pressure vessels, machine tools, etc.

Alloy structural steel has better mechanical properties than carbon steel, especially excellent heat treatment properties.