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 |