Ratnamani Metals And Tubes Limited


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	Carbon Steel
-	HFW / ERW Pipes
-	SAW Pipes
		- Mobile Plant
-	Coating Lines
	Stainless Steel
-	Seamless Tubes and Pipes
-	Welded Tubes and Pipes
-	Electric Fusion Welded (EFW)

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Home > Products > Carbon Steel

Carbon Steel

:: Electric Resistence Welded Pipes

RATNAMANI has diversified into manufacturing of Carbon Steel High Frequency Welded (HFW) / Electric Resistance Welded (ERW) Pipes with an annual installed capacity of 150,000 MT. HFW pipes are made from hot rolled flat steel strip, formed into tubular shape and the longitudinal seam is welded by the application of heating the edges through High Frequency Induction coil and by squeezing the edges. The weld joint is achieved without addition of any filler metal.

Products manufactured:

High Frequency Welded (HFW) Pipes / Electric Resistnce Welded (ERW) Pipes

Product Range:

Products	Size / Range	Thickness	Specification
HFW / ERW Pipes	6” NB to 16” NB	3.20 MM to 12.70 MM	ASTM A-53 A-135, A- 500, A-513, A-523, A- 847, A-984 API 5L IS-1161, 1239, 1978, 3589, 3601, 4270
Click on Products to View Process Chart.

Salient Features


	Capability to manufacture pipes upto Grade API X-70 and equivalent.

	Online Seam Annealing.

	Online Ultrasonic Testing of the weld line and whole body of the pipe.

	All testing facilities in-house to meet International Standards.

Application:

Oil and Gas Pipeline

Plumbing

Heating

Water Supply Systems

General purpose applications

Structural Pipe