GB/T 3098.2-2015 Translated English of Chinese Standard (GBT 3098.2-2015, GB/T3098.2-2015, GBT3098.2-2015): Mechanical properties of fasteners - Nuts
https://www.chinesestandard.net, 2015. márc. 18. - 34 oldal
This part of GB/T 3098 specifies the mechanical and physical properties of the nuts with coarse thread and fine pitch thread made of carbon steel or alloy steel when tested at ambient temperature range of 10C to 35C. Nuts conforming to the requirements of this part may not retain the specified mechanical and physical properties at elevated and/or lower temperature.
Design of bolt and nut assemblies
Appendix A Informative Design principles of nuts
Appendix B Informative Thread dimensions for the test mandrel
3098.1 Mechanical properties accordance with GB/T Alternative marking Appendix bearing surface bolt and nut bolted joint Brinell hardness test Carbon steel class in accordance Clause 9 coarse thread design principles External thread grip Hardness determined hexagon nuts high nut style hot dip galvanized identification mark left-hand thread loadability Metallic materials Minimum hardness value Ningbo nominal diameters nut assemblies nut or high nuts with coarse pitch thread Prevailing torque type principles of nuts proof load test Proof load values properties of fasteners QT e Carbon quenched and tempered Ranges of nominal Regular nut style Rockwell hardness test screws and studs specified in GB/T specified in Table steel d Carbon style and property symbol for property Table 9 Table A.1 temperature testing machines thin nuts style Thread dimensions Thread stripping load thread tolerance class types of nuts value for high Vickers hardness test Width across flats