FREE OF ORBITAL WELDS
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.
| ASTM A789 / ASME SA789, Super Duplex 2507, UNS S32750 | ||
| Size OD | Tolerance OD | Tolerance WT |
| <1/2’’ (<12.7 mm) | ±0.005’’ (±0.13 mm) | ±15% |
| 1/2’’ ≤OD≤1’’ (12.7≤OD≤25.4 mm) | ±0.005’’ (±0.13 mm) | ±10% |
| Meilong Standard | ||
| Size OD | Tolerance OD | Tolerance WT |
| <1/2’’ (<12.7 mm) | ±0.004’’ (±0.10 mm) | ±10% |
| 1/2’’ ≤OD≤1’’ (12.7≤OD≤25.4 mm) | ±0.004’’ (±0.10 mm) | ±8% |
| Alloy |
O.D. |
W.T. |
Yield Strength |
Tensile Strength |
Elongation |
Hardness |
Working Pressure |
Burst Pressure |
Collapse Pressure |
|
inch |
inch |
MPa |
MPa |
% |
HV |
psi |
psi |
psi |
|
|
|
|
min. |
min. |
min. |
max. |
min. |
min. |
min. |
|
| Duplex 2507 |
0.250 |
0.035 |
550 |
800 |
15 |
325 |
13,783 |
33,903 |
13,783 |
| Duplex 2507 |
0.250 |
0.049 |
550 |
800 |
15 |
325 |
19,339 |
41,341 |
18,190 |
| Duplex 2507 |
0.250 |
0.065 |
550 |
800 |
15 |
325 |
25,646 |
52,265 |
22,450 |