Hydraulic Control Lines depending on the length of the application are subjected to raw materials. Orbital welds have become unnecessary in our industry as well completions are often greater than the standard yield of a mill produced coil. Our seam-welded tubing production uses Tungsten Inert Gas (TIG) welding machines. This process gives the operator the tools to perform a repeatable, high-quality weld. Our current equipment, together with cold-drawing machines allow us to produce OD Size ranges of 1/8” – 1” and Wall Thicknesses of 0.028” -0.095”. Common alloys for tubing products are 316L, 2205, 2507, 825, 625, and Monel 400.
Characteristics
Excellent resistance to reducing and oxidizing acids.
Good resistance to stress-corrosion cracking.
Satisfactory resistance to localized attack like pitting and crevice corrosion.
Very resistant to sulfuric and phosphoric acids.
Good mechanical properties at both room and elevated temperatures up to approximately 1020° F.
Permission for pressure-vessel use at wall temperatures up to 800°F.
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% |