PRODUCT STANDARD AND SIZE
| ASTM B704,Incoloy 825,UNS NO8825 | ||
| ASTM B423 | ||
| Size OD | Tolerance OD | Tolerance WT |
| 1/8”≤OD<3/16”(3.18mm≤OD≤4.76mm) | +0.003“+0.08𝑚𝑚/-0 | ±10% |
| 3/16”≤OD<1/2”(4.76≤OD<12.7mm) | ±0.004“(±0.10 mm)/-0 | ±10% |
| 1/2”≤OD≤1”(12.7≤OD≤25.4 mm) | ±0.005“(±0.13 mm)/-0 | ±10% |
CHEMICAL COMPOSITION
| C | Mn | P | S | Si | Cr | Ni | Mo | Ti | Cu | Fe | AL |
| % | % | % | % | % | % | % | % | % | % | % | % |
| Max | Max | Max | Max | Max | Max | Min | |||||
| 0.05 | 1.0 | 0.02 | 0.03 | 0.5 | 19.5-23.5 | 38-46 | 2.5-3.5 | 0.6-1.2 | 1.5-3.0 | 22 | 0-0.2 |
MECHANICAL PROPERTIES ASTM B704
| Duplex | O.D. | W.T. | Yield strength | Tensile Strength | Elongation |
| Inch | Inch | Psi | Psi | % | |
| Min | Min | Min | |||
| 825 | 1/8 | 0.022 | 35,000 | 85,000 | 30 |
| 825 | 1/8 | 0.028 | 35,000 | 85,000 | 30 |
| 825 | 1/8 | 0.035 | 35,000 | 85,000 | 30 |
| 825 | 1/4 | 0.035 | 35,000 | 85,000 | 30 |
| 825 | 1/4 | 0.049 | 35,000 | 85,000 | 30 |
| 825 | 1/4 | 0.065 | 35,000 | 85,000 | 30 |
| 825 | 3/8 | 0.035 | 35,000 | 85,000 | 30 |
| 825 | 3/8 | 0.049 | 35,000 | 85,000 | 30 |
| 825 | 3/8 | 0.065 | 35,000 | 85,000 | 30 |
| 825 | 3/8 | 0.083 | 35,000 | 85,000 | 30 |
| 825 | 1/2 | 0.035 | 35,000 | 85,000 | 30 |
| 825 | 1/2 | 0.049 | 35,000 | 85,000 | 30 |
| 825 | 1/2 | 0.065 | 35,000 | 85,000 | 30 |
| 825 | 1/2 | 0.083 | 35,000 | 85,000 | 30 |
| 825 | 5/8 | 0.028 | 35,000 | 85,000 | 30 |
| 825 | 5/8 | 0.035 | 35,000 | 85,000 | 30 |
| 825 | 5/8 | 0.049 | 35,000 | 85,000 | 30 |
| 825 | 5/8 | 0.083 | 35,000 | 85,000 | 30 |