Exploring 30CrMo Steel

Concept of 30CrMo

30CrMo is a medium-carbon, low-alloy steel designed for enhanced strength and heat resistance. Belonging to the chromium-molybdenum family, it is engineered to perform under moderate thermal and mechanical stress, making it a versatile choice for industrial applications requiring durability and reliability.

Advantages of 30CrMo

30CrMo offers notable benefits, including high tensile strength, good fatigue resistance, and excellent hardenability. Its ability to maintain stability at temperatures up to 500°C ensures longevity in demanding conditions. Additionally, it provides decent weldability and machinability, allowing for efficient processing and fabrication into complex components.

Chemical Composition

The steel’s performance is rooted in its composition:

Carbon (C): 0.26-0.34%, contributing to hardness.

Silicon (Si): 0.17-0.37%, enhancing elasticity.

Manganese (Mn): 0.40-0.70%, improving toughness.

Chromium (Cr): 0.80-1.10%, increasing wear and corrosion resistance.

Molybdenum (Mo): 0.15-0.25%, boosting heat strength.

Phosphorus (P) and Sulfur (S): ≤0.035% each, kept low to preserve ductility.

This mix optimizes its mechanical properties for diverse uses.

Dimensions

30CrMo is available in plates (thickness 2-80 mm, width 1000-2500 mm, length 2000-12,000 mm), bars (diameter 10-350 mm), and pipes (outer diameter 6-530 mm), meeting various design requirements.

In summary, 30CrMo stands out as a robust, adaptable steel, ideal for engineering solutions needing strength and thermal endurance.