ГОСТ 33006.2—2014
Т аб л ица С.12 — Коэффициент прочности на изгиб (КПИ) для КНБК
Размеры в миллиметрах
Маркировка
соединения*
Внутренний
диаметр11
Наружный диаметр при коэффициенте прочности на иэгибс
1.902.252.502.753.20
NC2331.75
73.8276.9978.58
80.9684.14
38.10
71.4474.6176.20
77.7981.36
44.45
68.2670.2571.83
73.4275.80
NC2638.10
84.1487,3189.69
92.0895.65
44.45
81.7684.9386.52
88.9092.47
50.80
77.7980.1782.55
84.1486.92
NC3138.10
102.39106.36109.54
111.92117.08
44.45
100.81104.78107.95
110,33115.09
50.80
99.22103.19105.57
107.95112.32
NC3538.10
114.30119.06122,24
125.41130.97
44.45
125.41118.27121.44
124.62129,78
50.80
111.92116.68119.86
123.03127.79
57.15
110.33114,30117,48
119.86125.02
63.50
106.36110.33113.51
115.89120,25
NC3838.10
123.83129.38132.56
136.53142.08
44.45
123.03128.59131.76
134.94140.89
50.80
122,24127,00130.18
134.14139.70
57.15
120.65125,41128.59
131.76137.32
63.50
118.27122.24125.41
128.59133.75
NC4050.80
130.97136.53140.49
143.67150.02
57.15
130.18134,94138.91
142.08147.64
63.50
127.79132.56136.53
139.70146.05
71.44
124.22128.59132.56
134,94141.29
NC4450.80
143.67149.23153.99
157.16164.31
57.15
142.88148.43153.19
156.37163.51
63.50
141.29146.84150.81
153.99161,13
71.44
139.70143.67147.64
150.81157.16
NC4650.80
151.61157.16161.93
165.89173.04
57.15
150.81156.37161.13
164.31172.24
63.50
149.23154.78159.54
162.72170.66
71.44
146.84152,40157.16
160.34167.48
76.20
145.26150.02154.78
157.96164.31
82.55
142.08146.84150.81
153,99160.34
133