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Specifications
METAL SPECIFICATIONS
DESCRIPTION: FERRITIC/ PEARLITIC S.G IRON FOR CASTINGS WITH SECTIONS THICKER THAN 3mm.
RELEVANT STANDARDS:
BS2789 GRADE 420/12 SABS 936 GRADE SG 42 ASTM A536 GRADE 65-45-12 DIN 1693 GRADE GGG40
Meehanite SF 420-12
| COMPOSITON | ACCEPTANCE RANGE | |
| MIN% | MAX% | |
| Carbon | 3,7 | 3,90 |
| Silicon | 2,6 | 2,7 |
| Manganese | < 0,30 | |
| Sulphur | < 0,02 | |
| Phosphorus | < 0,02 | |
| Nickel | ||
| Chromium | 0,10 | |
| Molybdenum | ||
| Vanadium | ||
| Copper | ||
| Magnesium | 0,020 | 0,050 |
| MECHANICAL PROPERTIES TABLE | |||
| DUCTILE IRON | TENSILE STRENGTH MPa (MIN) | % ELONGATION (MIN) | BRINELL HARDNESS (BHN) |
| SG 42 | 410 | 12 | < 200 MAX |
| PREPARED BY: P. SINGH | CONTROLLED BY: | Rev 1 | EFFECTIVE DATE: |
| ASSISTED BY: H. JOUBERT | A. MWELASE | 01/02/2013 |
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