En Din 25crmo4 Steel Excellent Heat And Fatigue Resistance - China

EN DIN 25CrMo4 steel is a widely used alloy structural steel.

Its heat resistance and fatigue resistance are outstanding under medium and high temperature conditions.

It is especially suitable for key components that bear alternating loads and certain temperature environments.

The following analyzes its characteristics from a professional perspective: Heat resistance: Adapt to medium and high temperature working environments

EN DIN 25CrMo4 steel contains about 0.9%-1.2% chromium (Cr) and about 0.15%-0.3% molybdenum (Mo).

The synergistic effect of these two elements is the core of its heat resistance:

Chromium (Cr) forms a dense oxide film, improves the steel's oxidation resistance, and delays oxidation corrosion at high temperatures;

Molybdenum (Mo) significantly improves the steel's high temperature strength and creep resistance, inhibits grain growth at high temperatures, and enables the steel to maintain stable mechanical properties in the range of 300-500℃.

???? Anti-fatigue performance: "Toughness" to withstand alternating loads

After proper heat treatment (such as quenching and tempering treatment: quenching + high temperature tempering), 25CrMo4 steel can obtain a uniform tempered troostite structure, which has both high strength and toughness, and has significant advantages in anti-fatigue performance:

- Its tensile strength can reach 650-850MPa, and its yield strength is ≥400MPa.

When subjected to alternating loads such as repeated stretching and bending, it can effectively resist the initiation and expansion of micro cracks; If its performance needs to be further improved, the surface hardness and wear resistance can be enhanced through surface quenching, nitriding and other processes, thereby extending the service life under complex working conditions.

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• Posted By: Dongguan Songshun Mould Steel Co., Ltd.

• Phone: 0086 0769 85475596

• Address: 1st Floor, No. 1, Dongda Fourth Street, Shatou Community, Chang'an Town, Dongguan , GuangDong , China

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• Business Description: Established in 2009,Songshun Steel supplies a wide range of carbon, alloy and tool steel products, including high speed tool steel, cold work tool steel, hot work tool steel, plastic mould steel, engineering steel and machine structural steel etc.
  
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