Austenitic: | 316L | ASTM A-269 |
Duplex: | S31803/S32205 | ASTM A-789 |
S32750 | ASTM A-789 | |
Nickel alloy: | N08825 | ASTM B-704; ASTM B-423 |
N06625 | ASTM B-704; ASTM B-444 | |
CuNi alloy | Monel 400 | ASTM B-730; ASTM B-165 |
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.
Chemical | Flare | Metallurgical |
Corrosion | Flatten | Positive material identification (PMI) |
Dimensional | Grain size | Surface roughness |
Eddy current | Hardness | Tensile |
Elongation | Hydrostatic | Yield |
Incoloy 825 |
||||||||||
Nickel |
Chromium |
Iron |
Molybdenum |
Carbon |
Manganese |
Silicon |
Sulfur |
Aluminum |
Titanium |
Copper |
% |
% |
% |
% |
% |
% |
% |
% |
% |
% |
% |
|
|
min. |
|
max. |
max. |
max. |
max. |
max. |
|
|
38.0-46.0 |
19.5-23.5 |
22.0 |
2.5-3.5 |
0.05 |
1.0 |
0.5 |
0.03 |
0.2 |
0.6-1.2 |
1.5-3.0 |
Norm Equivalence |
|||
Grade |
UNS No |
Euro norm |
|
No |
Name |
||
Alloy |
ASTM/ASME |
EN10216-5 |
EN10216-5 |
825 |
N08825 |
2.4858 |
NiCr21Mo |
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% |