4B is a manufacturer of drop forged chains for agricultural and industrial applications. 4Bs drop forged chain is made of a special heat-treated alloy steel case hardened to Rockwell C57 - C62 with a ductile core hardness of Rockwell C40.
4Bs superior heat treatment technique provides the optimum chain link with a more resilient ductile core for shock resistance and an extremely hard exterior surface for superior wear resistance.
4Bs drop forged chain is backed by an international network of companies with over 125 years of experience, and a global team of engineers and sales professionals that can provide you with practical solutions for all your material handling applications.
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