| DESCRIPTIONS | MIG – MELEWAR BS EN 10255 : 2004 (BS 1387 :1985) welded steel tube is produced in three series : Type L2 (Light Series), Medium, Heavy & Type L1. The tubes are available in black finished or hot-dipped galvanised finished in 6 meter or 6.4 meter uniform standard lengths. | |
| APPLICATIONS | For ordinary conveyance of steam, gas, air, water, etc. | |
| END FINISH AND PROTECTION | Plain-end square-cut (PE) or Threaded and socketed (T/C). PE tubes are chipped without any protection on both ends.T/C tubes are supplied screwed with taper threads to BS EN 10226 – 1 (BS 21) and fitted with one parallel-threaded malleable iron socket, as required under this specification. | |
| IDENTIFICATION MARKING | Tubes are marked by colour bands about 50mm wide, about 300mm from each end, as follow: | |
| Type L2 (Light) – Brown | Medium – Blue | |
| Heavy – Red | Type L1 – White | |
| CHEMICAL COMPOSITION | The chemical composition of the steel, by cast analysis, shall comply with the below: | |
| Carbon, C | 0.20% max | |
| Manganese, Mn | 1.40% max | |
| Phosphorus, P | 0.035% max | |
| Sulphur, S | 0.030% max | |
| MECHANICAL PROPERTIES | The mechanical properties at room temperature shall be as given below: | |
| Yield Strength (MPa) | 195 min | |
| Tensile Strength (MPa) | 320 to 520 | |
| Elongation on gauge length Lo = 5.65 √ So (%) | 20% min | |
| TOLERANCES ON DIMENSION AND MASS | Outside Diameter | As shown in Table on page 16 – 19 |
| Wall thickness | Type L2 (Light tubes) – 8% | |
| Medium and Heavy tubes ± 10% | ||
| Type L1 – 8% | ||
| Mass | + 10% or – 8% on individual tubes for Type L1 & L2 | |
| ± 7.5% on bundles of 10 tons or more, for Medium and Heavy tubes | ||
| BEND TEST | The bend test shall applied to bare tubes with specified outside diameter (D) of 17.2mm up to and including 60.3mm and shall be carried out in accordance with EN 10232 to an angle of 90°. The groove in the forming tool shall have a width that fits the tube diameter accurately and a depth not less than 0.5 D. | |
| FLATTENING TEST | The flattening test shall applied to bare tubes with specified outside diameter (D) greater than 60.3mm and shall be carried out in accordance with EN 10233. Welded tubes shall be flattened with the weld placed alternately at 0 or 90° (12 or 3 o’clock) to the direction of the flattening. The tube shall be flattened in a press until the distance between platens, measured under load, reaches 75% of the original outside diameter of the tube. The tube shall show no cracks or flaws visible without magnifying aids.No cracks or flaws visible without magnifying aids shall occur in the metal other than in the weld until the distance between platens, measured under load, reaches 60% of the original outside diameter | |
| LEAK TIGHTNESS TEST | At the discretion of the manufacturer, the test can be either a hydrostatic test at a minimum of 50 bar for at least 5 s , or an automatic electromagnetic testing. | |
Galvanised Iron Welded Steel Pipe Socket End 25MM – 100MM (6M Length), MIG MELEWAR
RM97.00 – RM711.00
Galvanized pipe is mainly used for carrying water to supply home and commercial buildings; it may also serve as scaffolding frames because of its rust prevention. Galvanized pipe has a zinc coating, as a result, G.I pipe is more durable.
Standard: MS863:2010/BS EN 10255:2004/BS1387:1985
Application: Conveyance of water
Catalogue: MIG MELEWAR Pipe & Fitting
Brand: MIG-MELEWAR
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