Seamless: pierced, redrawn, annealed (multi-pass circulation process)
Welded: longitudinally welded, redrawn, annealed (multi-pass circulation process)
Packing: Tubing is level wound coiled on the metal / wooden drums or spools.
All drums or spools are packed in wooden crates for easy logistic operation.
Incoloy alloy 825 is a nickel-iron-chromium alloy with additions of molybdenum and copper. This nickel steel alloy’s chemical composition is designed to provide exceptional resistance to many corrosive environments. It is similar to alloy 800 but has improved resistance to aqueous corrosion. It has excellent resistance to both reducing and oxidizing acids, to stress-corrosion cracking, and to localized attack such as pitting and crevice corrosion. Alloy 825 is especially resistant to sulfuric and phosphoric acids. This nickel steel alloy is used for chemical processing, pollution-control equipment, oil and gas well piping, nuclear fuel reprocessing, acid production, and pickling equipment.
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. |
|
Incoloy 825 |
0.375 |
0.035 |
241 |
586 |
30 |
209 |
4,906 |
19,082 |
6,510 |
Incoloy 825 |
0.375 |
0.049 |
241 |
586 |
30 |
209 |
7,040 |
27,393 |
8,711 |
Incoloy 825 |
0.375 |
0.065 |
241 |
586 |
30 |
209 |
9,653 |
37,556 |
11,024 |
Incoloy 825 |
0.375 |
0.083 |
241 |
586 |
30 |
209 |
12,549 |
48,818 |
13,347 |
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% |