These nuts have good chemical resistance and may be mildly magnetic. they maintain their strength in high-pressure and high-temperature environments and are used with astm a193 bolts to fasten pressure tanks, valves, and flanges. also known as heavy hex nuts, they are about 10% wider and taller than standard hex nuts and distribute the load over a large area.
One side inch, one side metric, and a hex in the middle— these handy fasteners connect two female-threaded parts, such as coupling nuts, adapting from inch threads to metric. tighten with a standard wrench.
Astm a193 grade b7 specification covers requirements for high tensile alloy steel bolting material for use in high temperature or high-pressure service and other special purpose applications. it is a standard specification defining typical chemical composition, mechanical properties, hardness requirement, preferential heat treatment, product marking, certification and other requirements, …
Astm a193 grade b7. astm a193 grade b7 is a standard specification for high tensile chromium molybdenum alloy steel bolting material for use in high temperature or high-pressure service and other special purpose applications. it covers material specification for bolting used in pressure vessel service, valves, flanges and fittings. astm a193 defines both si (metric) and inch-pound …
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