Standard Classification: Dimension Standard System: Chemical Industry (HG) Outline Classification: Stud Details: Thread Size and Tolerance of Full Thread Stud and Chamfer at Both Ends shall be in accordance with GB/T901. The performance level is the mechanical performance requirement of special level. Available 35CrMo,42CrMo,25Cr2MoV,0 Cr18Ni9,0 Cr17Ni12Mo2,A193B8CL2,A193B8MCL2,A320L7,A453660 and other materials. Thread specifications have M10 ~ M56 * 4 special grade full thread stud.
Standard classification: size standard standard system: chemical (HG) shape classification: nut detailed description: nut type used with hexagon head bolt and stud shall meet the requirements of GB/T6170 and GB/T6171. The height of the type I hex nut is about 0.8d, and the height of the type II hex nut is about 1.0d. Performance levels are 6, 8, A2-50,A2-70,A4-50,A4-70. The thread specification has M10 ~ M56 * 4 commercial grade hex nuts.
Standard classification: size standard standard system: chemical (HG) shape classification: nut detailed description: nut used with full thread stud, its type and size according to GB/T6175,GB/T6176 requirements. The performance level is the mechanical performance requirement of special level. Available 30CrMo,35CrMo,0 Cr18Ni9,0 Cr17Ni12Mo2,A1948,A1948M,A1947 and other materials. Special nut for pipe flange with thread specification M10 ~ M56 * 4.
Standard Classification: Size Standard System: Chemical Industry (HG) Shape Classification: Bolt Details: The type and size of hexagon head bolts shall meet the requirements of GB/T5782 (coarse teeth) and GB/T5785 (fine teeth). Performance levels are 5.6, 8.8, A2-50,A2-70,A4-50,A4-70. Commercial grade hexagon head bolts with thread specifications M10 ~ M56 * 4.
Standard classification: material standard standard system: national standard (GB) shape classification: carbon steel detailed description: specifies the chemical composition and mechanical properties of grades Q195, Q215A, Q215B, Q235A, Q235B, Q235C, Q235D, Q255A, Q255B, Q275, etc. Usually used in the manufacture of anchor bolts, performance strength is not too high bolts, nuts, washers, pins, etc.
Standard classification: material standard standard system: national standard (GB) shape classification: carbon steel detailed description: specifies the chemical composition and mechanical properties of 20#, 25#, 35#, 45#, 40Mn and other materials. High-grade high-quality steel in the grade after the "A"; super high-quality steel in the grade after the "E". Can manufacture high performance strength bolts, studs, nuts, gaskets, etc., such as performance level 8.8.
Standard classification: material standard standard system: national standard (GB) shape classification: carbon steel detailed description: provides Q345A, Q345B, Q345C, Q345D, Q345E and other materials of chemical composition and mechanical properties. Q345 material comprehensive performance is good, weldability, cold, hot workability and corrosion resistance are good, C, D, E grade steel has good low temperature toughness. Suitable for anchor bolts and nuts to be welded.
Standard classification: material standard standard system: national standard (GB) shape classification: alloy steel detailed description: specifies the chemical composition and mechanical properties of 40MnB, 40Cr, 15CrMo, 30CrMo, 35CrMo, 42CrMo, 35 Cr2MoVA, 40CrNiMoA and other materials. High-grade high-quality steel in the grade after the "A"; super high-quality steel in the grade after the "E". With high strength, high hardness, high toughness. The hardenability is good, the working temperature can reach 500 ℃, and it is generally used after quenching and tempering treatment. Used to manufacture high strength and high toughness
Standard classification: material standard standard system: national standard (GB) shape classification: stainless steel detailed description: according to the organizational characteristics are divided into austenite, austenite-ferrite type, ferrite type, martensitic type and precipitation hardening type and other five types.
Standard Classification: Material Standard Standard System: American Standard (ASME/ASTM) Shape Classification: Carbon Steel Detailed Description: Alloy Steel and Stainless Steel Bolt Materials for High Temperature Pressure Vessels, Valves, Flanges and Pipe Fittings. The material class includes ferritic steel and austenitic stainless steel. Material grade ferrite: B5, B6, B7, B7M, B16; Austenitic steel: B8, B8A, B8C, B8CA, B8M, B8MA, B8T, etc.
Standard Classification: Material Standard Standard System: American Standard (ASME/ASTM) Shape Classification: Carbon Steel Detailed Description: Alloy Steel Bolt Material Suitable for Pressure Vessels, Valves, Flanges and Pipe Fittings at Low Temperatures. The material class includes ferritic steel and austenitic stainless steel. Material grade ferrite: L7, L7M, L43; Austenitic steel: B8, B8A, B8C, B8CA, B8M, B8MA, B8T, etc.
Standard Classification: Performance Standard Standard System: American Standard (ASME/ASTM) Shape Classification: Detailed Description: Suitable for alloy steel bolts for high temperature pressure vessels, valves, flanges and pipe fittings, with mechanical properties of Grade 8.8. Performance levels are: B5, B6, B7, B7M, B16. Heat treatment method: quenching and tempering