| Chemical | Flare | Metallurgical |
| Corrosion | Flatten | Positive material identification (PMI) |
| Dimensional | Grain size | Surface roughness |
| Eddy current | Hardness | Tensile |
| Elongation | Hydrostatic | Yield |
| Round Profiles of Single Line Encapsulation | |
| 1/4’’ OD line tubing | 0.433’’ Dia (11.0 mm) |
| 3/8’’ OD line tubing | 0.535’’ Dia (13.6 mm) |
| 1/2’’ OD line tubing | 0.660’’ Dia (16.8 mm) |
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 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% |