钢筋连接套筒国标标准

1、         钢筋连接套筒原材料应该是45号碳结钢

2、         钢筋直螺纹连接套筒外径长度应满足以下尺寸

规格                   三级钢外径×长度                   四级钢级钢外径×长度

Φ12                           18×28                                   19×32

Φ14                            21×32                                  22.5×36

Φ16                            24×36                                  25.5×40

Φ18                           27×41                                  28.5×46

Φ20                           30×45                                  31.5×50

Φ22                           32.5×49                               34.5×54

Φ25                             37×56                               39.5×62

Φ28                           41.5×62                                 44×68

Φ32                           47.5×70                                50.5×76

Φ36                            53×78                                  56.5×84

Φ40                            59×86                                  62.5×92

Φ50                             74×106                               78×112