|Model No:||DIN 2391||Technique:||Cold Drawn|
|Surface Treatment:||Oiled||Section Shape:||Round|
|Secondary Or Not:||Non-secondary||Type:||Seamless|
|Usage:||Pipeline Transport, Hydraulic/Automobile Pipe,etc||Length:||5800mm Or 11800mm Or Others|
|Key Word:||DOM Tuebs Pipes||Material:||Carbon Steel|
Torich the steel tubes maker.
Key words :Hydraulic cyliner tubes,DIN2391 steel tubes
ST37 ST35 St37.4 St52 E235 E255 E355 etc material is avaliable.
Pls feel free contact if any special requests on material and sizes.
Production method:Quality carbon steel--Cold drawing--Bright heat treatment without oxidization (NBK status)--nondestructive testing,In the wall honing and inside flushing under the high pressure--Antirust oiling outside surface--plastic capping on both ends.
Main features:High accuracy,excellent brightness,no oxidization on the outer and inner walls after heat treatment.high cleaness 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.Color of tube: gray with white.
Application: to be used in hydraulic system,automobile and in the occasion where the high precision,brightness,cleanness and mechanical properties of the tube are required.
1. Incoming Raw Material Inspection
2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing and Cold Rolling, on line inspection
5. Heat Treatment, +A, +SRA, +LC, +N, Q+T
6. Straightening-Cutting to specified length-Finished Measuring Inspection
7. Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8. Packing and Stocking
100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects