Optional Size Welded Steel Tube Carbon Steel E355 Precision Steel Tube

EN10305 E355 Cold Drawn Precision Welded Carbon Steel Tube For Automative Application

Application: automotive industry, machine and equipment building

Size(mm): O.D.:6.0-224.0 W.T.:1-15 L:max 12000

Delivery State: + C (BK drawn for shine/hard)

+ N (NBK normalized)

Surface: phosphatized, non-phosphatized, electrolytic zinc coated and chromated

Marking: Running marking along whole tube

Additional Testing: Eddy Current Testing, Ultrasonic Testing.

Precision steel tubes are characterized by:special dimensional accuracy of outer and inner diameters or wall thickness smooth surface resulting from drawing technology defined mechanical properties large dimensional variety

Process:

The cold rolled welded tube is produced by drawing ERW (electric resistance welded tube).During this process the sizing (wall thickness, inside and outside diameter), as well as weld integrity and surface finish is closely controlled to produce tube of the required size and mechanical property characteristics.

Packaging Details:

Original packaging according to the customers Export standard package in bundled or as required.
It both ends protected with plastic net Or wooden boxes according to length and destination
Oiled inside / outside Marking,oil-coating,varnish,end-protection by plastic caps to be confirmed.

Mill Test Certificate:

The product is supplied with 3.1.B inspection certificate,according to the standards EN 10204 and ISO 10474.

Jiangsu Hongbao Group (Pipe) Co., Ltd. (Zhangjiagang Hongda Pipe Co., Ltd.) is a high-tech company in Jiangsu province. The company has a registered capital of RMB 89 million, covers an area of 130,000 square meters, employs 600 staff, and has annual sales of RMB 400 million. The company is specialized in producing and selling high-end bearing tubes, auto alloy tubes, titanium and titanium alloy tubes, nickel and nickel-based alloy tubes, refrigerator condenser tubes, aluminum and aluminum alloy tubes and the like.
The company focuses on the development of new products, and has successively developed high diameter-wall ratio titanium-molybdenum-nickel alloy seamless steel tubes, nuclear power plant reactor driving mechanism used martensite stainless steel seamless steel tubes, auto critical components used alloy steel tubes, high-end refrigerator used corrosion-resistance galvanized condenser tubes, marine engineering and complex environment oilfield used high-strength corrosion-resistance G3 tubes, among which, nuclear power plant reactor driving mechanism used martensite stainless steel seamless steel tube has obtained high-tech product certificate of the province.
At present, the company has obtained authorization for 7 patents for invention, and 8 patents for utility model.