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Seamless tubes suitable for threading and welding

Standard:

EN 10224 Steel pipes, joints and fittings for the conveyance of aqueous liquids including potable water.
EN 10255 Non-alloy steel tubes suitable for welding or threading.
DIN 2440 Steel tubes; medium-weight suitable for screwing.
DIN 2441 Steel tubes; heavy-weight suitable for screwing.

Steel grades:

according to EN 10224: L235, L275, L355
according to EN 10255: S195T, S235JRH
according to DIN 2440: St33-2
according to DIN 2441: St33-2
according to DIN 1629: St37.0, St52.0

Applications

Threaded tubes have a wide range of use especially in the construction field. They are used for water transfer and distribution of all kinds of liquids and gasses. The limits for using this group of tubes concerning the level of pressure and the type of media transfered are given by the appropriate directives valid for pipeline, construction and pipes.

Production

The tubes for threading according to standard EN 10255 are preferential delivered as hot finished.
For technological reasons and to achieve the required dimensional tolerances are as cold drawn and normalized delivered by agreement the following tubes:
– all dimensions with OD 10,2 mm, 13,5 mm, 17,2 mm
– at type L and L1 also 76,1 mm, 88,9 mm, 101,6 mm
– at type L 114,3 mm
– all dimensions at type L2

Dimensions

The tubes for threading in the range from 1/8″ (outside diameter 10,2 mm) to 4″ (outside diameter 114,3 mm) are produced according to EN 10255 standard.

Dimensions for threaded tubes according to EN 10255

The tubes for threading can be also produced according to other standards, e.g. DIN or EN 10224.

See also: WELDED tubes (line pipes) according to EN 10255 standard.

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