DIN 17179 Seamless Circular Steel Tubes For Special Requirements

Tianjin Wanlei Steel Pipe Co., Ltd. is one of the leading manufacturers and suppliers of din 17179 seamless circular steel tubes for special requirements in China, featured by quality products and low price. If you're going to wholesale durable din 17179 seamless circular steel tubes for special requirements made in China, welcome to get pricelist and free sample from our factory.

DIN 17179 Seamless Circular Steel Tubes For Special Requirements

DIN17179 standard applies to seamless circular tubes subject to special requirements and made from the fine grain structural steels. These tubes are predominantly used in construction of pressure vessels,chemical plant, pipework and for general mechanical engineering purposes. They are designed for operating temperatures not exceeding 400℃ and normally exhibit a minimum yield strength of between 255MPa and 460MPa. But steel tubes under this standard is not used to conveying combustible liquids and gas.

Manufacturing process of DIN 17179 seamless circular steel tubes 

The tubes in DIN 17179 specification shall be manufactured by hot or cold rolling, hot pressing, hot or cold drawing. The steel shall be produced either by the basic oxygen process, the open hearth process or in the electric furnace. Subject to agreement with the purchaser, an alternative equivalent process may also be used. But the manufacturer or seller shall inform the purchaser on the steelmaking process used. The steel shall be fully killed, shall have sufficient elements for nitrogren control and shall be fine grained. Unless otherwise agreed at the time of ordering, the process used to manufacture the tubes is left to the manufacturer's discretion. Besides, we can offer the coating service on the surface of steel tubes according to customers' requirements. Such as black painting, hot dipped galvanized, 3PE...

Symbols of steel grade of DIN 17179 seamless circular steel tubes

StE255, WStE255, TStE255, EStE255, StE285, WAtE285, TStE285, EStE285, StE355, WStE355, TStE355, EStE355, StE420, WStE420, TStE420, EStE420, StE460, WStE460, TStE460, EStE460.

Visual inspection

Steel tubes we supplied are as circular as possible and straight to the eye. The wall thickness of tubes are uniform. The tube ends shall be cut perpendicular to the tube axis and shall be free from burr.

Our equipment

Our company has introduced sophisticated facilities and a complete set of testing system such as X-ray flaw detection, ultrasonic flaw detection, hydrostatic pressure testing machine, tensile testing machine, metallographic analyzer, physics and chemistry laboratory and other detection system. Our high quality manufacturing testing procedures enable our production and testing meet the required standard and satisfied our customers well.

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