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Automative Application Precision Steel Tube 34MnB5 SR / N Condition Welded
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|Thickness||0.5-15mm||Processing||Cold Drawn, Cold Rolled|
precision steel pipe,
erw precision tubes
Condition SR N LC Welded Steel Pipes ERW High Precision Steel Tube For Automative Application
|Technique||Cold drawn & cold rolled|
|Application||1. Automotive and mechanical pipes|
|2. Petroleum cracking pipes|
|3. High Pressure Boiler Pipe|
|4. Low and middle pressure fluid transportation pipeline|
|5. Chemical fertilizer equipment pipes|
|6. Heat exchanger pipes|
|1. BK (+C)||No heat treatment after last cold forming process.|
|2. BKW (+LC)||After last heat treatment there is a light finishing pass (cold drawing)|
|3. BKS (+SR)||After the final cold forming process the tubes are stress relieve annealed.|
|4. GBK (+A)||After the final cold forming process the tubes are annealed in a controlled atmosphere.|
|5. NBK (+N)||
After the final cold forming process the tubes are annealed above the upper transformation
point in a controlled atmosphere.
|Package||1. Bundle Packing.|
|2. Plain end or vanished as per customer's request.|
|3. Wrapped in waterproof paper.|
|4. Sackcloth with several steel strips.|
|5. Pack in heavy tri-wall boxes.|
Certificates: according to EN 10204 3.1
Inspection Items: Tensile stength, Yield stength, Elongation, Flattenging, Flaring
Eddy Current Test 100%, Size and surface checking 100%
Other test item can be arranged as per request
The tubes can be produced in the following delivery conditions:
BK (+C) Cold finished/hard (cold finished as drawn).
No heat treatment after the last cold forming process.
BKW (+LC) Cold finished/soft (lightly cold worked)
After the last heat treatment there is a light finishing pass (cold drawing).
BKS (+SR) Cold finished/stress relieve annealed.
After the final cold forming process the tubes are stress relieve annealed.