公稱外徑 nominal O.D
mm

公稱壁厚（hòu）　Nominal Wall Thickness mm

5.0

5.5

6.0

7.0

8.0

9.0

10.0

11.0

12.0

13.0

14.0

15.0

16.0

18.0

20.0

22.0

219

26.39

28.96

31.51

36.60

41.63

273

33.04

36.28

39.51

45.92

325

39.46

43.33

47.26

54.90

62.54

70.13

377

45.88

50.39

54.89

63.87

72.80

81.67

426

51.91

57.03

62.14

72.33

82.46

92.55

102.59

457

55.73

61.24

66.73

77.69

88.58

99.43

110.23

120.98

131.60

142.34

508

74.28

86.48

98.64

110.75

122.81

134.82

146.78

158.69

529

77.38

90.11

102.78

115.41

127.99

140.51

152.99

165.42

559

81.82

95.29

108.70

122.07

135.38

148.65

161.87

175.04

610

89.37

104.09

118.76

133.39

147.96

162.48

176.96

191.39

630

92.33

107.54

122.71

137.82

152.89

167.91

182.88

197.80

660

96.77

112.72

128.63

144.48

160.29

176.05

191.76

207.42

720

105.64

123.08

140.46

157.80

175.09

192.32

209.51

226.65

820

140.34

160.19

179.99

199.75

219.45

239.10

258.71

276.26

297.77

317.23

256.01

394.58

432.96

914

178.74

200.06

222.93

244.95

266.92

288.84

310.72

332.54

354.31

397.74

440.95

483.96

920

179.92

202.19

224.41

246.58

268.70

290.77

312.79

334.76

356.68

400.40

443.91

486.13