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CARBON STEEL WELDED TUBES
Product range
diameter (mm): min 12.70 - max 171.45
thickness (mm): min 0.60 - max 8.00
Production lines:
- Round carbon steel welded tubes
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Square carbon steel welded tubes
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Rectangular carbon steel welded tubes
- Elliptical carbon steel welded tubes
- Oval carbon steel welded tubes
- Semioval carbon steel welded tubes
Standard lengths
- Tubes standard length is 6000 mm (other dimensions upon request)
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Cut to length tubes - minimum length 70 mm; bevelled edges upon request (according to availability of size and thickness)
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Tubes are supplied in bundles (quantities according to Marcegaglia standards)
Manufacturing standard
- NBR 6591
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EN 10305-3 (former DIN 2394)
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EN 10305-5 (former DIN 2395)
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NBR 5580
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EN 10255 (former DIN 2440)
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ASTM A 53 (SCH40 and SCH80)
Optional processing
| Eddy Current non destructive testing (EC) |
Standard in line |
| Weld seam removed (RIR) |
Upon request according to machine availability |
| Bevelled edges (BI) |
Upon request according to machine availability |
| Marked (MA) |
According to norm requirements |
| Metallizated (MT) |
For galvanized tubes upon request |
Technical characteristics
| Product range |
Profile: round, square, rectangular and especial shapes
(elliptical, oval, semioval) |
| Steel grades |
FF - cold rolled steel, FQ -
hot rolled steel and QD - pickled steel.
According to SAE 1006 / 1010
(other grades upon request)
ZC - galvanized steel according
to NBR 7008 |
| Welding |
High frequency (HF)
Weld seam position: for square, rectangular and special shaped tubes - upon request |
Supply conditions
- Dimensional tolerances according to manufacturing standard
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Upon request: tubes can be supplied with dimension/thickness
not included in tables and/or with special shapes
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Additional requests not included in the above mentioned standards must be analysed and agreed beforehand
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Destructive tests including expansion test,
weld test and flattening test are performed on all lots, even if not specifically required
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