outer  diameter  (φ)

wall thickness  tolerance(mm)

wall thickness(mm)

diameter tolerance (mm)

  weight (g/m)

  weight   Zinc(g/m)

weight  PVF (g/m)

resistance to pressure (Mpa)

length(m/ton)

4.75(3/16″)

+0.05

0.7

±0.12 common And ± 0.08 Higher

70

71

72

88

13889

6

±0.05

91

92

93

70

10753

6.35(1/4″)

±0.05

97

98

99

64

10101

8(5/16″)

±0.05

125

127

128

51

7813

9.52(3/8″)

±0.10

152

153

154

43

6494

10

±0.10

160

162

163

41

6135

12

±0.10

194

196

198

34

5051

8

±0.05

1

172

174

175

72

5714

10

±0.10

220

222

223

58

4484

12

±0.10

270

272

274

48

3650

15

±0.10

346

349

351

36

2849

Mechanical Property  

Yield Strength 6s ≥180Mpa   

Elongation δ≥25% 

Tensile Strength 6s ≥290Mpa       

Test item 

Flaring Test  / Bending Test /  Flattening Test /  Pressure Test / Salt mist Test