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BZ451ESR Hot Work Mould Steel
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BZ451ESR Hot Work Mould Steel

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STEEL GRADE OF VARIOUS COUNTRIES

GB

AISI

DIN

JIS

BOHLER

4Cr5MoSiV1
H13ESR
1.2344ESR
SKD61
W302

CHEMICAL COMPOSITION

C
Mn
Si
Cr
Mo
V
BZ451ESR
0.38
0.50
1.005.001.30
1.00


BZ451ESR HOT WORK MOULD STEEL/MOLD STEEL/ALLOY STEEL/DIE CASTING MOLD STEEL


BZ451ESR is a premium hot work mould steel, designed to provide outstanding performance in demanding applications such as die casting moulds, aluminum extrusion moulds, and other alloy steel components. With its superior heat resistance, excellent toughness, and durability, BZ451ESR is widely used for the production of molds that require resistance to high thermal stresses and erosion. This versatile steel is ideal for industries such as automotive, motorcycle manufacturing, and aluminum alloy extrusion.


Chemical Composition

  • Carbon (C): 0.38%

  • Manganese (Mn): 0.50%

  • Silicon (Si): 1.00%

  • Chromium (Cr): 5.00%

  • Molybdenum (Mo): 1.30%

  • Vanadium (V): 1.00%

The composition of BZ451ESR steel is specially designed to enhance its resistance to thermal fatigue and wear. The high chromium and molybdenum content provides exceptional heat resistance and durability, making it the ideal choice for high-performance molds and tools exposed to extreme operating conditions.


Conventional Smelting Process

The manufacturing process of BZ451ESR steel involves advanced smelting techniques such as EF+LF+VD+ESR, ensuring a uniform material structure with minimized impurities. This advanced processing results in superior mechanical properties, making it suitable for a wide range of hot work applications.


Delivery Status

  • Spheroidizing Annealing: Hardness ≤ HB235

The steel is delivered in a spheroidized annealed condition, providing excellent machinability while retaining superior toughness and strength.


Delivery Size Options

BZ451ESR is available in a variety of sizes, making it highly versatile for different industrial needs:

  • Thickness: 20-500mm

  • Width: 400-1200mm

  • Length: 2000-3000mm

  • Diameter: φ20-φ800mm

  • Length for Large Diameters: 2000-6000mm

These size options allow you to find the right fit for your specific molding requirements, reducing lead times and improving efficiency in your production processes.


Main Applications

  1. Aluminum Extrusion Moulds: BZ451ESR is perfect for aluminum extrusion moulds, offering the ideal combination of heat resistance and durability for aluminum processing.

  2. Die Casting Moulds: This steel is widely used in the production of die casting molds, including molds for automobile engine shells and motorcycle parts, ensuring long-lasting performance and high precision.

  3. Complex-Shaped Molds: BZ451ESR is ideal for creating complex-shaped aluminum alloy extrusion molds, such as sunflower series products, which require precision and high wear resistance.

  4. Extended Mold Life: The steel's enhanced properties provide mold life of 30,000-80,000 cycles, capable of producing 5-10 tons of aluminum in aluminum extrusion moulds before showing signs of wear.

  5. Enhanced Durability Over H13/1.2344: BZ451ESR solves common issues such as early erosion and cracking in conventional hot work steels like H13/1.2344, offering a more reliable and cost-effective solution.


Key Features

  • High-Heat Resistance: With high chromium and molybdenum content, BZ451ESR offers superior resistance to thermal fatigue, making it ideal for high-temperature applications.

  • Longer Mold Life: BZ451ESR significantly extends the life of molds, making it an excellent choice for industries requiring consistent performance over thousands of cycles.

  • Improved Toughness and Durability: The steel's composition ensures outstanding toughness and resistance to wear and tear, even in the most demanding conditions.


Conclusion

BZ451ESR hot work mould steel is a high-performance material ideal for die casting, aluminum extrusion moulds, and other critical applications. Its enhanced heat resistance, toughness, and corrosion resistance ensure reliability and durability in production environments with extreme temperatures. If you are looking for a versatile, high-quality steel for your next project, BZ451ESR is the perfect solution.


Contact Us Today

If you are ready to optimize your manufacturing processes with the best quality hot work mould steel, contact us at Guangdong Beizhong. We offer customized solutions to meet your specific needs and deliver exceptional products. Reach out to us today to discuss your requirements and receive a tailored quote.


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 E-mail:bondyu@beizhongsteel.com
 Phone+86-18665533972
 
 
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industrial zone,Beijiao town, ShunDe district, 
FoShan city GuangDong China
Depend to the rigorous quality management, high standard production requirements and professional technical team supervision, We produce high-quality tooling materials、mould base、mechanical parts processing and professional heat treatment.
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