Category Archives: FAQ

F1554 Grade 36/55 Substitution Clause

Grade Tensile Strength, ksi (MPa) Description Yield Strength, min, ksi (MPa) Size Range, in. (mm) 36A 58 – 80 (400 – 558) 36 (248) 1⁄4 – 4 (6.4 – 102) 55 75 – 95 (517 – 655) 55 (380) 1⁄4 – 4 (6.4 – 102) 105 125 – 150 (862 – 1034) 105 (724) 1⁄4... Read more

Grade Tensile Strength, ksi (MPa) Description Yield Strength, min, ksi (MPa) Size Range, in. (mm) 36A 58 – 80 (400 – 558) 36 (248) 1⁄4 – 4 (6.4 – 102) 55 75 – 95 (517 – 655) 55 (380) 1⁄4 – 4 (6.4 – 102) 105 125 – 150 (862 – 1034) 105 (724) 1⁄4... Read more

Which Bolt Grades can be Galvanized?

Grade Can I Galvanize? Raw material Nominal Size Minimum Yield Strength Minimum Tensile Strength Minimum Hardness ASTM F1554 Grade 55 Yes Low Alloy Steel 1⁄2” – 4″ 55 75 – ASTM F3125/A325 Yes Medium Carbon Steel, Quenched and Tempered 1⁄2” – 11⁄2“ 92 120 C25 ASTM A449 Yes 1⁄4” – 1″11⁄8” – 11⁄2“15⁄8” – 3″ 928158... Read more

Grade Can I Galvanize? Raw material Nominal Size Minimum Yield Strength Minimum Tensile Strength Minimum Hardness ASTM F1554 Grade 55 Yes Low Alloy Steel 1⁄2” – 4″ 55 75 – ASTM F3125/A325 Yes Medium Carbon Steel, Quenched and Tempered 1⁄2” – 11⁄2“ 92 120 C25 ASTM A449 Yes 1⁄4” – 1″11⁄8” – 11⁄2“15⁄8” – 3″ 928158... Read more