IMS SPA SPECIAL STEELS distributes a wide dimensional range of cold-drawn seamless precision tubes used to manufacture hydraulic cylinders, and mechanical seamless tubes, warm drawn, for applications in the mechanics and the construction of machines, tamplus.

Precision seamless tubes for hydraulic cylinders.

They are produced with two dimensional series with limited tolerance values to undergo, on the inner diameter, to peeling and rolling or polishing.
Two different grades of easily weldable steel are used, both of which can be supplied with a treatment of the inclusions so as to guarantee improved tool machinability.
The product can be supplied with two different machining allowances, either the ' 'DL Series ' ' or the ' 'DP Series ' '.
The DL series is characterised by a limited internal machining allowance which make s the tubes suitable for honing and/or lapping operations.
The DP series includes a kind of machining allowance which makes it possible for the tubes to undergo both skiving treatments with detachable chips and roller burnishing on their internal diameter.

Steel grades :The supplied products can be made out of two different types of steel, either the PHC 355 or the PHC 460 type, and they can be supplied in two different supply conditions, either SR (stress relieving thermal treatment after the last cold-drawing operation) or N (normalizing treatment after the last colddrawing operation). Such supply conditions correspond to the following standards : Surface protection : The surface of the supplied products is cold-finished. The tubes are protected with oil both internally and externally, so as to guarantee a temporary protection against oxidation under cover.
Certification : All the supplied products have obtained a 3.1 acceptance test certification, according to the EN 10204 and ISO 10474 standards. IMS SPECIAL STEEL S guarantees the total traceability of its products. The cast number reported on the specific 3.1 acceptance test certification is also written on each tube.


Hot rolled seamless tubes for mechanical applications.

They are in Tenaris in accordance to UNI EN 10297-1. These products are to be used in the fields specified by the ‘’Machinery Directive 98/37/EC’’, as well in mechanics and in the field of machinery construction. Particular applications, such as pressure vessels and structural applications, are not included. These applications refer to other EN standards, EC Directives or national laws in force in the different countries where the products are used.
IMS SPECIAL STEELS has various Service Centers at its disposal, where it is possible to ask for additional machining operations, such as cut to measure, chamfering, drilling and boring, as well to agree on quantities, markings, and packaging.
Steel grades : the following tables contain data on the applications, chemical analysis and mechanical properties of the stocked steel types. The products are designed in accordance with the EN 10297 standard and fulfill all the requirements foreseen by the relevant national regulations.

Catalogue Hot Rolled

Service Centre
IMS S.p.A. has various Service Centres at its disposal, where it is possible to ask for additional machining operations, such as custom-made cuts, chamfering, drilling and boring, as well as to agree on quantities, markings, and packaging different from the ones included in this catalogue.

Authorized distibutor

Consult heat treatments informations.