Composition and Properties of Eutectic High Chromium Cast Iron (A217)
- Table 1 shows the composition and properties of hypereutectic high chromium cast iron.
Table 1 the composition and properties of hypereutectic high chromium cast iron
| Main Composition | Properties | ||||||||||
| C | Si | Mn | Cr | Ni | Mo | Ti | P | S | Hardness（HB） | Impact toughness（J） | Wear resistance |
| 4.4-5.2 | ≦1.0 | 0.6-3.0 | 34-38 | ≦1.0 | ≦3.0 | ≦2.1 | ≦0.08 | ≦0.08 | ≥ 600 | ≥ 4 | 1.5-2.5 |
Note: 1.The size of the impact specimen is 20x20x110 (without notch)
- Wear resistance is the result compared to Alloy A05 ( Warman )
- May also contain low% o f Cu, Nb, B, etc.
- Fig 1 shows the microstructure of hypereutectic high chromium cast iron.
Fig 1 the microstructure of hypereutectic high chromium cast iron: (a): Low magnification; (b): High magnification
Preliminary analysis shows that the organization consists of significantly refined M7C3, martensite, and a small amount of austenite and pearlitic.
