EN10305-2 E355 WT0.5 Electrolytic Zinc Welded Steel Tube , Round Steel Tubing

EN10305-2 E355 WT0.5 Electrolytic Zinc Welded Steel Tube Round Steel Tubing

Description:

With high dimension accuracy and fine surface quality, cold drawn precision steel tubing is suitable for using hydraulic and pneumatic systems. Besides seamless cold drawn tubes, welded cold drawn tubes is also used for cylinder with a smooth surface. BS EN 10305, a series of steel tube specification for precision applications, 10305-2 grade E355 is a ideal material for barrel and cylinder.

Chemical composition comparison:

Produced by cold drawing over mandrel and die on the ERW welded steel tube, to achieve better tolerance and good concentricity, both outside and inside weld seam is completely removed during the cold drawing process.

Main Date:

Material: E355

Other material aviable: E235

Standard: EN10305-2

Technique: Cold Drawn

Od:6-80

Wt:0.5-10

Delivery Condition:

+C No heat treatment after the final cold drawing process

+LC After the final heat treatment there is a suitable drawing pass
+SR After the final cold drawing process there is a stress relieve heat treatment in a controlled atmosphere
+A After the final cold drawing process the tubes are annealed in a controlled atmosphere
+N After the final cold drawing operation the tubes are normalized in a controlled atmosphere

Advantage (compare with seamless cold drawn tube):

1.Better shape

2.Improved quality surface

3.Tight Excentricity and wall thickness tolerances

4.Good toughness at low temperature

5.USA Market: 90% of the cylinder in the USA market are produced with welded tubes

6.Cost fix Lengths More Cheaper

Application:

High Precision Steel Tube is Widely Used in

Automobile Parts,Bushing,Sleeving,Fuel Tank;etc,

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.