| Identification Symbol | Grade | Elements | Composition % |
|---|---|---|---|
| Alloy 200 | 26 chromium, 6 nickel, 3.5 molybdenum with nitrogen and copper 255 |
Nickel, minA | 99.0 |
| Copper, max | 0.25 | ||
| Iron, max | 0.40 | ||
| Manganese, max | 0.35 | ||
| Carbon, max | - | ||
| Silicon, max | 0.35 | ||
| Sulfur, max | 0.01 |
| Condition and Diameter or Distance Between Parallel Surfaces, in. (mm) | Tensile Strength, min, psi (MPa) | Yield Strength (0.2 % offset), min. psi (MPa)A | Elongation in 2 in. or 50 mm or 4D,min % |
|---|---|---|---|
| Cold-worked (as worked): | |||
| Rounds, 1 (25.4) and under | 80 000 (550) | 60 000 (415) | 10B |
| Rounds over 1 to 4 (25.4 to 101.6) incl. | 75 000 (515) | 50 000 (345) | 15 |
| Squares, hexagons, and rectangles, all sizes | 65 000 (450) | 40 000 (275) | 25B |
| Hot-worked: | |||
| All sections, all sizes | 60 000 (415) | 15 000 (105) | 35C |
| Rings and disksD | - | - | - |
| Annealed: | |||
| Rods and bars, all sizes | 55 000 (380) | 15 000 (105) | 40B |
| Rings and disksE | - | - | - |
| Forging quality | |||
| All sizes | F | F | F |