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Roll Bending Products
ERW Photo Gallert

Safa Rolling Roll Bending Products

 

 

This Mill, was commissioned at 2004 and produces pipes with 12.5 m. length with longitudinal seam welding in 20 to 64 in. dia. and up to 38.1 mm. thickness. Mill’s products include steel pipes according to international standards such as: API 5L and ISO 3183 and customer requirement such as: IPs-M-PI-190 which is used in sensitive and important applications specifically for high pressure oil and gas transmission lines (sour & sweet system). In production process of the mill, longitudinal edge of steel plates is chamfered with milling machine, then is passing through three-roller bending and post bending stations, and proceeding through continuous root welding, then longitudinal seam is welded by submerged-arc welding (SAW) internally and externally. In order to achieve perfect roundness of pipe and required mechanical properties, entire length of the pipe up to maximum 1.5% of its diameter, is expanded by expander machine and after beveling of two pipe ends, production process is completed.
During production process, welding quality and pipe body is evaluated in accordance with desired standard and requirement defined by the customer. This evaluation is performed through different stations including non destructive tests (two ultrasonic stations), fluoroscopy, MPT and hydrostatic stations. If the results of these tests are acceptable then pipes can be delivered to the customer.
 

 

 

 

Size (in.) Thickness (mm.) Weight (kg/m.)
20 6.4 69.38  
7.1 87.7  
8.7 107.12  
22 5.6 76.42  
7.1 96.63  
8.7 118.06  
24 6.4 95.26  
11.1 163.93  
14.3 210.07  
26 6.4 103.15  
10.3 165.02  
14.3 227.7  
28 6.4 111.2  
11.1 191.58  
14.3 245.68  
30 6.4 119.25  
11.9 220.12  
20.6 376.63  
32 6.4 127.3  
11.9 235.09  
20.6 402.54  
34 6.4 135.35  
14.3 299.64  
25.4 525.27  
36 6.4 143.24  
14.3 317.27  
25.4 556.59  
38 7.9 186.46  
19.1 445.52  
31.8 731.80  
40 7.9 196.39  
19.1 469.55  
31.8 771.8  
42 8.7 227.05  
20.6 531.57  
31.8 811.79  
44 8.7 237.99  
20.6 557.47  
31.8 851.79  
46 8.7 248.72  
20.6 528.87  
31.8 890.99  
48 8.7 529.66  
20.6 608.78  
31.8 930.99  
52 9.5 307.25  
22.2 711.03  
31.8 1010.98  
56 9.5 330.91  
22.2 766.32  
31.8 1090.18  
60 9.5 354.8  
22.2 822.16  
31.8 1170.17  
64 9.5 387.8  
22.2 878  
38.1 1250.15  

 

  Minimum Thickness
  Middle Thickness
  Maximum Thickness


These values are based on X70 grade,
Lower grades could be produced with higher thickness.