JB/T 981-1977 Nuts for welding pipe joints
Basic Information
Standard ID:
JB/T 981-1977
Standard Name: Nuts for welding pipe joints
Chinese Name:
焊接管接头用螺母
Standard category:Machinery Industry Standard (JB)
state:in force
Date of Implementation:2000-01-01
standard classification number
Standard Classification Number:Machinery>>General Parts>>J15 Pipe Accessories
Publication information
other information
Introduction to standards:
JB/T 981-1977 Nuts for welded pipe joints JB/T981-1977 Standard download decompression password: www.bzxz.net
Some standard content:
Standard of the First Machinery Industry Department of the People's Republic of China Nuts for Welded Pipe Joints
D,>0. 95S
Marking example:
Nut with thread diameter d27mm and pitch 1.5mm: Nut M27×1.5JB981-77
The First Machinery Industry Ministry of the People's Republic of China issued JB981--77 proposed by the First Machinery Industry Standardization InstitutewwW.bzxz.Net
Replaced JB98167
Implemented on May 1, 1977
Jinan Foundry and Forging Machinery Research Institute and others drafted 347
Pipe outer diameter
M12×1.25
M27×1,5
M36×2
M42×2
M52×2
M60×2
Technical conditions shall comply with the provisions of JB1003-~77. 348
JB 981-17
Nominal size
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