Alloy shall conform to the chemical composition requirements prescribed. Hardness tests, proof of load tests, and cone proof load tests shall be made to all nuts to meet the requirements specified. Grades Covered Under ASTM A194. Carbon steel heavy hex nuts. Quenched & tempered carbon steel heavy hex nuts. TECHNICAL INFORMATION. HEX NUT MARKINGS AND PROPERTIES. Grade 2, 2H, 4 and 7. (Mechanical Properties). AN Standard 818.2.2. For high-temperature, high-pressure in combination These nuts are tapped UNC-2B in sizes of 111 and with alloy studs and bolts. Under or BUN-2B. Jul 14, 2016 - HHN.2H.HDG. Heavy Hex Nuts, ASTM A194 2H, Hot Dip Galvanized. The information below lists the required dimensional, chemical and physical. Specification Requirements: • Dimensions: ASME B18.2.2. • Material &. Mechanical Properties: Grade 2H of ASTM A194/A194M. Sizes larger.

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View previous versions of standard - proposed revisions of this standard Abstract This specification covers a variety of carbon, alloy, and martensitic and austenitic stainless steel nuts. These nuts are intended for high-pressure or high-temperature service, or both. Bars from which the nuts are made shall be hot-wrought. The material may be further processed by centerless grinding or by cold drawing. Austenitic stainless steel may be solution annealed or annealed and strain-hardened. Each alloy shall conform to the chemical composition requirements prescribed. Hardness tests, proof of load tests, and cone proof load tests shall be made to all nuts to meet the requirements specified.

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