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N
OVEMBER
2016
73
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")
Wall thickness:
6.4 to 44.5mm for X80
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
Expander range
Longitudinally welded steel pipes:
Outer diameter:
406 to 1,524mm (16" to 60")
Wall thickness:
6.4 to 34.9mm for X80
Length:
6,000 to 12,500mm
Material grades:
Up to X 80, according to API 5L,
45
th
edition
Figure 3: Edge milling machine 18"-56". Client: Hunan Shengli,
China, 2013
Length without tabs: 9,000 to 12,200mm
Width:
1,436 to 4,470mm,
(Ø457mm (18") to Ø1,422mm (56")
Thickness:
6.4 to 60mm
Material grades:
Up to X 120 according to API 5L,
45
th
edition; σc max = min 830 MPa
Cutting speed:
max 300m/min