25% Elongation Cold Drawn Seamless Steel Tube ST35 Material Water Transporting

Round Steel Pipe EN10305 DIN2391 DIN2445 High Precision Seamless Steel Tubes

Main Standard:

DIN2391, DIN2445, EN10305

Main Material

Main characteric

No Oxidation Layer on the outer and inner walls;

No Leakage under high pressure;

No Crake under flating and flattening;

No distortion after cold bending;

High precision high cleanness;

Excellent brightness

cold drawn and hot finished

Superior performance for high pressure and temperature uses

Black finish and hot dip galvanized

Excellent corrosion resistance

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.