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FS669


Category:

Tool and Die Steel

Relying on Fugang's decades of aerospace and military technology, it was developed by Northeast Special Steel Group, the main drafter of the mold steel standard, and Fugang's national technical center organized the use of internationally cutting-edge production process flow, and its comprehensive performance has reached the world-class level.

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  • Product Description
  • High corrosion-resistant and wear-resistant mirror

    Plastic mold steel

    Relying on Fugang's decades of aerospace and military technology, it was developed by Northeast Special Steel Group, the main drafter of the mold steel standard, and Fugang's national technical center organized the use of internationally cutting-edge production process flow, and its comprehensive performance has reached the world-class level.

    Ingredient Design

    Brand

    chemical composition

    Si Si Mn Cr Ni Mo V

     

     

    Special elements

    FS669

    0.40

    0.35

    0.35

    16.0

    0.9

    0.9

    0.15

    +N

    Add to

    Material characteristics

    Using vacuum degassing + electroslag remelting (quaternary slag system) to make the steel pure and uniform in structure

    Excellent corrosion resistance, wear resistance, polishing performance, hardenability and comprehensive performance

    After heat treatment, the hardness can reach HRC48-52. The quality level is similar to M340.

    Main Applications

    Plastic molds that require higher corrosion resistance and wear resistance; molds that require the production of mirror polished or transparent plastic products. Specific uses:

    Plastic products with flame retardants: terminal blocks, electrical housings, electronics, electrical instruments, electrical switches, electrical box panels, automotive industry, etc.

    Plastic products containing glass fiber: car door lock handles, headlight trims, mirror housings, plastic sports equipment, plastic gears, etc.

    Transparent plastic products: car lamp housings, transparent panels, etc.

    Heat treatment process

    Quenching temperature: 1020℃~1050℃, oil cooling

    Tempering temperature: 500℃-550℃, HRC48-52

    Product Specifications

    Round steel: Maximum diameter 450mm3

    Flat steel: Maximum size 21-120*60-910mm;

    Forgings: Maximum size 100-600*310-810mm; meet user needs.

    Recommended materials:

    When the mold size stability and wear resistance requirements are high, it is recommended to use high temperature tempering. In order to maintain the stability of the mold size, it is recommended to perform deep cooling before tempering.

    It is recommended to select the size of the raw material consistent with the final size of the mold to obtain O. For the parts processed by EDM, if polishing is required, the deteriorated white layer should be completely removed to avoid affecting the polishing effect.

    The stainlessness of stainless steel is relative rather than absolute, and it is necessary to do a good job of social


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