Fasteners for HG/T20634-2009 Steel Pipe Flanges (Class Series)

Standard classification: performance standard standard system: chemical (HG) shape classification: detailed description: this standard specifies the type, size, material, marking, technical requirements and use regulations of fasteners for steel pipe flanges (Class series). The standard type includes: hexagon head bolts, full thread studs and type I hexagon nuts and special nuts. The material and mechanical properties of commercial grade fasteners shall meet the requirements of GB/T3098.1, GB/T3098.2, GB/T3098.6 and GB/T3098.15.

Standard Classification:

Performance criteria

standard system:

Chemical (HG)

Shape classification:

 

Detailed Description:

The standard specifies steel pipe flanges (ClassSeries) type, size, material, marking, technical requirements and use regulations of fasteners.

The standard type includes: hexagon head bolts, full thread studs and type I hexagon nuts and special nuts.

The material and mechanical properties of commercial grade fasteners shall complyGB/T3098.1,GB/T3098.2,GB/T3098.6andGB/T3098.15of the provisions.