A leading manufacturer, exporter, suppliers & stock holder of Tube & we provide a comprehensive range of Tube.
We manufacture Tube in India for export all around the world.
Ovality of steel tubes
(out of roundness), is the difference between max. and min. diameters readings taken in the same given section. Ovality shall be within OD tolerance.
O = ODmax – ODmin (absolute value in mm)
O = 100.(ODmax – ODmin) / OD (in %)
Marking system for steel pipes according to EN
EN 10027 – 1 system of reduced marking, the basic symbols.
EN ECISS IC10 additional symbols.
EN 10027 – 2 system of numerical marking.
Types of Tubes:
Packaging of steel tubes and pipes
Packaging rolled seamless tubes
Bundle of circular cross section with a diameter of max. 800 mm, max. weight of 3500 kg. Upon agreement bundle with hexagonal cross-section.
Bundle tied by wire
Bundle tied by a steel tape
Steel tape underlined by tapaten
The ends of the tubes (bundles) are wrapped in PE film or a film and tapaten
After agreement protection of the inner surface of tubes by plastic caps.
Types of tests and documentation
By testing the proving is done which proves that the properties of tubes are identical to the requirements of the order and the relevant standards.
The process is divided into three parts:
Steel Tube available with us
seamless tubes acc. to EN, DIN, BS, UNI, NFA, STN, CSN, PN-H
seamless tubes acc. to GOST and TU
seamless tubes according to ANSI/ASME B36.10M
seamless tubes according to ASTM A450/A450
seamless tubes according to JIS (tubes)
seamless tubes according to JIS (pipes)
seamless cold drawn tubes acc. to STN, EN, DIN, BS, UNI, NF, GOST
Cold drawn heat exchangers tubes with minimum wall thickness (sizes in inches)
Cold drawn heat exchangers tubes with minimum wall thickness (sizes in mm)
tubes with internal riffling
casing and tubing
precision tubes according to European standards
precision steel tubes with small tolerances
cold drawn tubes according to ASTM A450/A450M
precision tubes for bearing rings
welded tubes according to GOST 20295
welded tubes according to DIN 24585
welded tubes according to EN 10220
welded tubes according to API 5L
Available materials for Tube