Each one tubing coil is a completely continuous length without orbital welds.
Each one tubing coil is hydrostatic tested with a targeted pressure.
The test can be witnessed on site by the third party inspectors (SGS, BV, DNV).
Other tests are eddy current test, chemicals, flattening, flaring, tensile, yield, elongation, hardness for the material quality.
Meilong Tube offers coiled tubing in a wide range of corrosion resistant stainless steels, nickel alloys. We have extensive experience in product supply and innovation in this sector, from the technological advances required for subsea developments in the 1999 to the deepwater challenges of today.
Application
Chemical Processing.
Pollution-control.
Oil and gas well piping.
Nuclear fuel reprocessing.
Components in pickling equipment like heating coils, tanks, baskets and chains.
Acid production.
ASTM B704 / ASME SB704, Incoloy 825, UNS N08825, Inconel 625, UNS N06625 | ||
ASTM B751 / ASME SB751 | ||
Size OD | Tolerance OD | Tolerance WT |
1/8’’≤OD<5/8’’ (3.18≤OD<15.88 mm) | ±0.004’’ (±0.10 mm) | ±12.5% |
5/8≤OD≤1’’ (15.88≤OD≤25.4 mm) | ±0.0075’’ (±0.19 mm) | ±12.5% |
Meilong Standard | ||
Size OD | Tolerance OD | Tolerance WT |
1/8’’≤OD<5/8’’ (3.18≤OD<15.88 mm) | ±0.004’’ (±0.10 mm) | ±10% |
5/8≤OD≤1’’ (15.88≤OD≤25.4 mm) | ±0.004’’ (±0.10 mm) | ±8% |
ASTM B423 / ASME SB423, Incoloy 825, UNS N08825 | ||
Size OD | Tolerance OD | Tolerance WT |
1/8’’≤OD<3/16’’ (3.18≤OD<4.76 mm) | +0.003’’ (+0.08 mm) / -0 | ±10% |
3/16≤OD<1/2’’ (4.76≤OD<12.7 mm) | +0.004’’ (+0.10 mm) / -0 | ±10% |
1/2’’≤OD≤1’’ (12.7≤OD≤25.4 mm) | +0.005’’ (+0.13 mm) / -0 | ±10% |
Meilong Standard | ||
Size OD | Tolerance OD | Tolerance WT |
1/8’’ ≤OD<3/16’’ (3.18≤OD<4.76 mm) | +0.003’’ (+0.08 mm) / -0 | ±10% |
3/16≤OD<1/2’’ (4.76≤OD<12.7 mm) | +0.004’’ (+0.10 mm) / -0 | ±10% |
1/2’’≤OD≤1’’ (12.7≤OD≤25.4 mm) | +0.004’’ (+0.10 mm) / -0 | ±8% |