ERW STEEL PIPES

ERW STEEL PIPES/ERW CARBON STEEL PIPES  ERW STEEL PIPES

Usage: Used for low pressure liquid delivery, such as water, gas, and oil.

Process:
ERW (Electric Resistance Welded)
HFI (High Frequency Induction)
EFW(ELECTRIC FUSION WELDED TUBE)
HFW(High-Frequency Welding)

Quality Standard:
ERW HFI , EFW,:
IS: 3589 Steel tubes for water and *age
IS : 1978-1982? Steel tubes for use in transportation of oil; gas & Petroleum products?
BS: 1387 Steel Tubes for use for Water, Gas, Air and Steam
ASTM A53 Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and 

Seamless
DIN 2458 WELDED STEEL PIPES AND TUBES
EN10217 Welded steel tubes for pressure purposes. Technical delivery conditions. Non-alloy 

steel tubes with specified room temperature properties
API 5L Line Pipe
Coating Standard:
ANSI/AWWA C104/A21.4 American National Standard for Cement-Mortar Lining for Ductile-Iron Pipe 

and Fittings for Water
ISO 21809 Petroleum and natural gas industries -- External coatings for buried or submerged 

pipelines used in pipeline transportation systems
DIN 30670 Polyethylen coatings of steel pipes and fittings