TPT November 2016

AR T I C L E

Uzinexport SA

50 years of designing large diameter longitudinally submerged welded pipes By Uzinexport SA, Romania

The entry point to this market was recorded in early 2000 with the contract placed with them by Man Industries, India, for a mechanical pipe expander meant for its plant in Indore and entirely designed, manufactured, tested and commissioned by Uzinexport as general contractor, in association with several other companies including M/S Iprolam, which designed and provided the hydraulics, electricals and automation system, and M/S Upetrolam as the manufacturer of the mechanical equipment. This first project was followed by repeated orders, which allowed Uzinexport to become the reliable supplier of LSAW pipes to three out of four of the biggest Indian pipe manufacturers – Jindal Saw Ltd, Essar Steel Plant and Man Industries. The reference list in the field has added more machines like the edge milling machine, hydro-tester and bevelling machine, besides the originally offered pipe expander, surpassing the required technical parameters according to the various customers. UZINEXPORT SA is an important Romanian company dealing internationally in the contracting and construction of metallurgical plants and pipe mills. It is proud to be celebrating its 50th anniversary this year. It is one of a small number of engineering companies able to design, manufacture and supply, test and commission equipment and plant for the production of large diameter, longitudinally submerged welded pipes (LSAW pipes).

Figure 2: Mechanical expander 18"-56". Client: Hunan Shengli, China, 2013

Expander range Longitudinally welded steel pipes: Outer diameter:

457 to 1,422mm (18" to 56") 6.4 to 44.5mm for X80

Wall thickness:

Length:

9,000 to 12,200mm

Material grades:

Up to X 120 according to API 5L, 45 th edition

Figure 1: Mechanical expander 16"-60". Client: ESSAR Hazira, India, 2010

Figure 3: Edge milling machine 18"-56". Client: Hunan Shengli, China, 2013

Expander range Longitudinally welded steel pipes: Outer diameter:

Length without tabs: 9,000 to 12,200mm Width: 1,436 to 4,470mm,

406 to 1,524mm (16" to 60") 6.4 to 34.9mm for X80

(Ø457mm (18") to Ø1,422mm (56")

Wall thickness:

Thickness:

6.4 to 60mm

Length:

6,000 to 12,500mm

Material grades:

Up to X 120 according to API 5L, 45 th edition; σc max = min 830 MPa

Material grades:

Up to X 80, according to API 5L, 45 th edition

Cutting speed:

max 300m/min

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N OVEMBER 2016