Steel epansion shield anchor bolts

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Astm a193 grade b7 is a standard material specification for chromium-molybdenum alloy steel fasteners for use in high tensile, high temperature and special purpose applications. grade b7 is a heat-treated chromium-molybdenum alloy steel with minimum tensile requirement of 100 ksi, yield of 75 ksi and maximum hardness of 35 hrc.

Astm a193 grade b7 bolts and threaded studs are manufactured from a chromium-molybdenum steel and are quenched and tempered (heat treated) to develop the desired mechanical properties (strength). grade b7 is the most common grade of a193 bolts used in construction. b7 threaded studs and short, headed bolts are readily available in the marketplace.

A193 b7 alloy steel round bar the asme a193 designation covers fasteners intended for use in pressure vessels, valves, flanges, and fittings. heat treated chromium-molybendum (aisi 4140) high-yield bolting steel for high pressure applications.

To produce hex bolts, manufacturers most commonly employ a method called cold-forming. a cold-forming machine usually has a series of three or four dies that progressively shape a metal blank into the final shape and dimensions that its manufacturer desires.

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