Title: identification marks for hex and heavy hex nuts author: fastener mart created date: 8/12/2006 10:47:21 pm
Astm a193 b7 is a bolting specification for medium-high temperature applications. it is a heat treated chromium molybdenum steel and is considered for applications up to 450° celsius (840° fahrenheit). astm a320 l7 has the same chemical and physical properties as b7, with additional charpy v notch tests taken at -101° celsius (-150° fahrenheit) for low temperature applications.
There are 302 suppliers who sells aluminium black anodized bolts on alibaba, mainly located in asia. the top countries of suppliers are china, taiwan, china, from which the percentage of …
Hardened super-corrosion-resistant316 stainless steel threadedrods—grade b8m. these hardened 316 stainless steel threaded rods are 40% stronger than standard grade b8m threaded rods. they meet the pressure and temperature requirements of astm a193 and are often used to secure pressure tanks, valves, and flanges.
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