1.1 These test methods cover the chemical analysis of ferrochrome-silicon having chemical compositions within the following limits:
| Element | Concentration,% |
| Aluminum | 0.50 max |
| Antimony | 0.005 max |
| Arsenic | 0.005 max |
| Bismuth | 0.005 max |
| Boron | 0.005 max |
| Carbon | 0.15 max |
| Chromium | 34.0 to 47.0 |
| Cobalt | 0.10 max |
| Columbium | 0.050 max |
| Copper | 0.050 max |
| Lead | 0.005 max |
| Manganese | 0.75 max |
| Molybdenum | 0.050 max |
| Nickel | 0.50 max |
| Nitrogen | 0.050 max |
| Phosphorus | 0.030 max |
| Silicon | 30.0 to 45.0 |
| Silver | 0.005 max |
| Sulfur | 0.030 max |
| Tantalum | 0.050 max |
| Tin | 0.005 max |
| Titanium | 0.50 max |
| Vanadium | 0.50 max |
| Zinc | 0.005 max |
| Zirconium | 0.050 max |
1.2 The test methods appear in the following order:
| Sections | |
| Arsenic by the Molybdenum Blue Photometric Method | 8-18 |
| Chromium by the Acid Dissolution Titrimetric Method | 19-25 |
| Silicon by the Sodium Peroxide Fusion-Perchloric Acid Dehydration Method | 26-33 |
1.3This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For precautions to be observed in these test methods, refer to Practices E50, and to precautions included in the individual methods.
Product Details
- Published:
- 01/01/2000
- Number of Pages:
- 6
- File Size:
- 1 file , 58 KB
