Here is the chemical composition of the mentioned alloys:
- Alloy 200: Nickel (99.0% min)
- Alloy 400: Nickel (63.0-70.0%), Copper (28.0-34.0%)
- Alloy 600: Nickel (72.0% min), Chromium (14.0-17.0%)
- Alloy 601: Nickel (58.0-63.0%), Chromium (21.0-25.0%)
- Alloy 625: Nickel (58.0 min), Chromium (20.0-23.0%), Molybdenum (8.0-10.0%)
- Alloy 800: Nickel (30.0-35.0%), Chromium (19.0-23.0%), Iron (39.5% min)
- Alloy 800H: Nickel (30.0-35.0%), Chromium (19.0-23.0%), Iron (39.5% min), Carbon (0.05-0.10%)
- Alloy 800HT: Nickel (30.0-35.0%), Chromium (19.0-23.0%), Iron (39.5% min), Carbon (0.06-0.10%)
- Alloy 803: Nickel (30.0-35.0%), Chromium (19.0-23.0%), Iron (39.5% min), Molybdenum (2.2-3.2%), Copper (1.5-3.0%)
- Alloy 825: Nickel (38.0-46.0%), Chromium (19.5-23.5%), Iron (22.0 min), Molybdenum (2.5-3.5%), Copper (1.5-3.0%)
- Alloy C-276: Nickel (55.0 min), Chromium (14.5-16.5%), Molybdenum (15.0-17.0%), Iron (4.0-7.0%)
- Alloy 20: Nickel (32.0-38.0%), Chromium (19.0-21.0%), Molybdenum (2.0-3.0%), Iron (29.85-34.0%)
Please note that these compositions are approximate ranges and may vary slightly depending on the specific manufacturer or product specification.