Comparison Various Specifications Of En Bs 530a30 Alloy Steel And 4130 Materials - China

A comprehensive comparison of EN BS 530A30 alloy steel and 4130 alloy steel: Key differences:

- 4130 contains molybdenum (0.15-0.25%), while 530A30 does not.

- EN BS 530A30 alloy steel has a higher manganese content (0.70-0.90% vs.

0.40-0.60%).

- Both have similar chromium and carbon contents.

Heat Treatment Comparison EN BS 530A30 Heat Treatment

- Melting Point Range: 1450-1510°C

- Limited information available on specific heat treatment processes.

AISI 4130 Heat Treatment

- Normalizing Temperature: 871-927°C, Air Cooling

- Annealing Temperature: 829-857°C, Furnace Cooling

- Quenching Temperature: 843-871°C, Water Cooling

- Tempering Temperature: Adjust according to desired properties (204-649°C) Key Performance Comparison EN BS 530A30 Advantages

- High manganese content provides excellent strengthening

- Moderate strength range, suitable for a wide range of applications

- Good fatigue performance AISI 4130 Advantages

- Molybdenum significantly improves hardenability and strength

- Excellent weldability, less susceptible to weld cracking

- Good low-temperature toughness

- Excellent heat treatment responsiveness, achieving a wide range of properties

- Unaffected by temper embrittlement

- Nitriding treatment is possible to improve wear resistance Summary

EN BS 530A30 alloy steel, due to its molybdenum content, surpasses 530A30 in hardenability, weldability, strength, and toughness, making it particularly suitable for high-end applications such as the aerospace and automotive industries.

530A30, as a traditional chromium alloy steel, offers a good price-performance ratio in general machinery manufacturing and is suitable for applications with less demanding performance requirements.

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