钢结构的普通螺栓与高强螺栓的区别?
发布时间：2015-8-27 11:02:18 浏览次数:1109普通螺栓一般用普通碳素结构钢制造，不经热处理，高强螺栓一般用优质碳素结构钢或合金结构钢制造，需要经过调质热处理提高综合机械性能。 高强度分为，8.8级，10.9级，12.9级。
从强度等级: 高强螺栓常用8.8S和10.9S两个强度等级。 普通螺栓一般有4.4级，4.8级 5.6级8.8级。
从受力特点高强螺栓施加预拉力和靠摩擦力传递外力，普通螺栓靠栓杆抗剪力和孔壁承压来传递剪力。
Ordinary bolt generally made of ordinary carbon structural steel, without heat treatment, high strength bolt generally made from high quality carbon structural steel and alloy structural steel, need after tempering heat treatment to improve comprehensive mechanical properties. High strength is divided into, 8.8, 10.9, and 12.9 on the Richter scale are unlikely.
From the strength grade: commonly used high strength bolts 8.8 S and 10.9 S two strength grade. Ordinary bolt generally have a magnitude of 4.4, 4.4 on the Richter 5.6 magnitude 5.6 on the Richter scale are unlikely.
From mechanical characteristics, high strength bolt and pre-tensioning passed by friction force, ordinary bolt by bolt rod under pressure to deliver shear resistance to shear and hole wall.
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