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Development Trend of High Strength Bolting Steels - China manufacturer

[ Time:2019-02-21 Click:261 ]

    As everyone knows, strength property class for stud bolts are 8.8, 9.8, 10.9 and 12.9. And the main materials are mostly Quenched and tempered mid-carbon steel or mid-carbon alloy steel.

    As the development of automobile, machinery, construction, renewable energy industries,  Fasteners, including stud, bolt,nut,etc, are required to be more fitable. Fasteners need to have more stress resistance performance, and more lightened at the same time.

    Since fasteners provide the function in machinates as connection, fasten, position, seal, besides simple positioning work, fasteners also need to be tightened. As a result, fasteners bear a static tensile load, which will bring loose or break to the fasteners.

Research and development for high-duty steel stud bolt

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Improve bolts properties


    Reduce sulfur and phosphor composition in steels. Reducing S composition will improve deformation rate, and reducing P composition will improve resistance ability. Especially when S composition less than 0.005%, properties will be much obvious.

    Raw materials of LT bolt are all special composition, with less sulfur and phosphor.Si, Mn, Cr compositions are all more fitable for heat-treatment producers, which will affect on finished bolt with high hardness, and stabilization. 

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Reduce Production Costs


    Promising it's products quality , to be more competitive in the market, Anyang Longteng Heat Treatment Material Company require its self to reduce production costs. We choose 42CrMoA, 35CrMo steel grade as raw materials, which are more efficient on annulling, quenching and tempering. 

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Advanced Heat-treatment Technology


    Anyang Longteng Heat-treatment Material Company has its own special heat-treatment lines which are fitable for different diameters. Our professional team obtain the technique to control and slight change the heating temperatures. All the production lines are generated by electric power from our roof solar panels, that is renewable and green.

    As a  China high quality fastener manufacturer and supplier, Anyang Longteng Heat Treatment Material Co.,Ltd keep one developing it's technology and competitiveness. Ultra-high strength bolt research is one of our most importance studies, and we believe our dedication will bring benefits to the industries.

Written by Ms. Cora Tsao

[email protected] Whats' app:(86)-18317351307




Email:[email protected] Tel:0372 2256782  
Add: Industrial Park, Indu District, Anyang City, Henan Province, P.R.China
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