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Sales Contact:Ms. Karen Tseng
Skype:Honest Prosper

Seamless Stainless Steel Hollow Bar for Mechanical & Structural Equipment.

Stainless Steel Hollow Bar - Hollow Bar Manufacturers

The Seamless Stainless Steel Hollow Bar suitable for various kinds of Chemical Plant, Petrol-Chemical Plant, Pulp Paper Mill, Beverage Plant, Water Transport System, Power Plant.......etc.


Seamless Precision Steel Tube - Carbon Steel Seamless Hydraulic Tubes

High quality carbon steel seamless tube St35, St37.4, St52, cold drawing, bright heat treatment without oxidation (NBK status), non-destructive testing, cleaning, phosphating, anti-rust oil dipping, the application for machine tools industry, construction machinery, ship building industry hydraulic system, automotive steel tube, and in the occasion where the high precision, brightness, cleanness and mechanical properties of the tube are required.

  • DIN highly accurate, cold drawn and bright seamless steel tube is used as the tube to be phosphated. The phosphated is realized with the imported chemical fluid to form a black film. The antirust oil is absorbed by means of the micropore on the film to prevent from the rust. The caps are covered at two ends of tube to prevent from the dust.
  • High accuracy, excellent brightness, no oxidization on the outer and inner walls after heat treatment, high cleanness inside wall.
  • The steel tube is able to stand high pressure. No deformation after cold bending, no crack after flaring and flattening. The complicated geometrical forming and machining can be realized.
  • The color of NBK tube is Bright Black. Color is homogeneously distributed on the tube surface. The tube has good property of antirust.
Production Standard ¡GDIN 2391/DIN 1629/EN 10305/ASTM A179/JIS G3445 Finished Condition ¡G NBK(+N) / GBK(+A) / BK(+C) / BKW(+LC) / BKS(+SR) Material¡G ST35(E235) / ST45(E255) / ST52(E355) / ST37.4

Stainless Steel Cylinder Tubing - Extra-Thin Seamless Stainless Steel Tube

HOME > Seamless Tubing > Extra - Thin Seamless Stainless Tube

The Stainless Cylinder Tubes suitable for various kinds Auto Machines, Discard Pneumatic Cylinder, Air Cylinder, Chemical Industry Machines, Medical Equipment, and Food Machines, etc.The Extra-Thin style Seamless Stainless Steel Pipes use for Hydraulic Cylinder can be used directly and save your time with money if processed is necessary.
Pneumatic Cylinder Tubes Size List : all dimensions are by metric, and the tolerance per ISO system H10 specification
6 x 7mm
8 x 9mm
10 x 11mm
12 x 13.2mm
ID Tolerance
-0.00 +0.06
-0.00 +0.06
-0.00 +0.06
-0.00 +0.07
16 x 17.4mm
20 x 21.4mm
25 x 26.4mm
32 x 33.4
ID Tolerance
-0.00 +0.07
-0.00 +0.08
-0.00 +0.08
-0.00 +0.10
40 x 41.6mm
ID Tolerance
-0.00 +0.10

TEL: 886-4-7983078 FAX: 886-4-7995061 Email: ,
February 29, 2024 Honest Prosper Industrial Co., Ltd., All Rights Reserved. | Seamless Stainless Steel Pipes Manufacturer