B7 Studbolts - B7 Threaded Tods - 2H Hexagon Nuts

For The Petrochemical - and Off-Shore Industry

Grades: Studbolts and threaded rods grade B7 according to the American Standard ASTM A 193 and associated hexagon nuts grade 2H according to ASTM A 194 are the most popular grade and available form stock. Grade (ASTM) is an American designation covering the chemical composition as well as the mechanical properties.

Temperature Range: From min. - 46° C to max. + 538° C (for guidance)

Certificates: Ooccasionally with the delivery of studbolts a 3.1B certificates according to DIN 50049 is required. This is an inspection certificate of the manufacturer comprising the composition of the material and the mechanical properties per heatnumber. In order that the customers can be assured of a correct relationship between product and the testing document, the labels carry the heatnumber. The Dutch 'Dienst voor het Stoomwezen' accepts this certificate for the sizes up and including 2 inch resp. M52, delivery with a 3.1 C certificate is also possible on request.

Specials: Less usual grades like B16 for the higher temperatuire application, the austenitics stainless steel B8 and ASTM A 320 grade L7 for lower temperatures can be supplied on request. Studbolts and nuts with a PTFE flour carbon coating (teflon coating, blue coating, etc.) can also be supplied on request.

Mechanical Properties