Standard Classification: Performance Standard System: Chemical Industry (HG) Shape Classification: Detailed Description: This standard specifies the structural dimensions and technical requirements for large straight nuts for flange and manhole flange connection of pressure vessel equipment. Nut types are R type, H type, HR type, HI type. Stud surface phosphating treatment.
Standard Classification: Performance Standard System: Chemical Industry (HG) Shape Classification: Detailed Description: This standard specifies the structural dimensions and technical requirements of spherical gaskets for flange and manhole flange connection of pressure vessel equipment. Spherical washer type A and B. Stud surface phosphating treatment.
Standard classification: size standard standard system: mechanical (JB) shape classification: stud detailed description: the standard instead of JB/T4707-2000
Standard classification: size standard standard system: mechanical (JB) shape classification: stud detailed description:
Standard classification: size standard standard system: chemical (HG) shape classification: stud detailed description:
Standard classification: size standard standard system: chemical (HG) shape classification: gasket detailed description:
Standard Classification: Material Standard Standard System: American Standard (ASME/ASTM) Shape Classification: Nickel Base Alloy Steel Detailed Description: The standard materials are UNSN07718(718), UNSN07080(80A), UNSN07252(689) and UNSN07001(685). Fastener delivery status: solid volume treatment precipitation hardening; or solid volume treatment stabilized precipitation hardening.
Standard Classification: Performance Standard Standard System: American Standard (ASME/ASTM) Shape Classification: Detailed Description: The standard materials are UNSN07718(718), UNSN07080(80A), UNSN07252(689) and UNSN07001(685). Fastener delivery status: solid volume treatment precipitation hardening; or solid volume treatment stabilized precipitation hardening.
Standard classification: size standard standard system: chemical (HG) shape classification: nut detailed description: parameter diagram:
The thread size, tolerance and chamfer at both ends of the full thread stud 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.
The type of nut used with full thread studs shall conform to HG/T20634-2009 heavy hex nut size. (Special Nut) The performance level is the mechanical performance requirements of the special level. Available 30CrMo,35CrMo,0 Cr18Ni9,0 Cr17Ni12Mo2,A1948,A1948M,A1947 and other materials. Special nut for pipe flange with thread specification M14 ~ M90 * 3.
The nut type is heavy-duty hexagon nut can be made of 25#,35CrMoA,40Cr,25 Cr2MoVA,0Cr18Ni9 and other materials. The thread size is M10 ~ M90 * 3 heavy-duty hexagon nut.