Hot Dip Galvanized ASTM A193 B7M Stud Bolt

China Manuafacturer of Hot Dip Galvanized ASTM  A193 B7M Stud Bolt Full thread HDG ASTM F2329 What is A193 B7M Stud Bolt? ASTM A193 B7M is an alloy steel grade typically for Stud bolt or thread rod used in the oil and gas industries where the bolting could be exposed to the environments containing H2S.Our stud bolt A193 B7M is NACE MR 0175 complied. A193 B7M ,the same as B7 ,which is made from AISI 4140/4142 low Carbon Alloy Steel Grades followed by quencing & tempering. ASTM A193 Grade B7M bolts and studs are identical in chemistry to Grade B7 (quenched and [...]