ST52 E355 Hollow Steel Tube Hydraulic Cylinder Honed Pipe

ST52 E355 Hydraulic Cylinder Honed Tube

• It has general corrosion resistance similar to unstable ni-cr304.
• It has high temperature oxidation resistance, but the oxidation rate will be affected by internal factors such as exposure environment and product morphology.
• The total heat transfer coefficient of metal depends on the thermal conductivity of metal, but also on other factors. Stainless steel keeps the surface clean, so it can conduct electricity. Metals with higher thermal conductivity have better heat dissipation than other metals

Description:

Production Process:
Cold rolling by Cold pilger machine and Cold rolling machine
Size: 6-350mm

WT: 1.0-35mm

1. Standard:
EN10305-2 Cold Drawn Precision Seamless Steel Pipes

2. Steel Grade:
E155,E195,E235,E275,E355, other materials upon agreement with customers.

3. Production method:
Cold drawn on the welded steel tubes, to reach high accuracy on the OD and WT tolerance

4. Packing:
In Hexagonal Bundles, with anti-rust oil protection, with seaworthy packing

5. Deliver condition:
1) +C No heat treatment after the final cold drawing process
2) +LC After the final heat treatment there is a suitable drawing pass
3) +SR After the final cold drawing process there is a stress relieve heat treatment in a controlled atmosphere
4) +A After the final cold drawing process the tubes are annealed in a controlled atmosphere
5) +N After the final cold drawing operation the tubes are normalized in a controlled atmosphere

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.