Composition and Properties of Eutectic High Chromium Cast Iron

Table 1 shows the composition and properties of Eutectic high chromium cast iron.

Table 1 the composition and properties of eutectic high chromium cast iron

Main Composition							Properties
C	Si	Mn	Cr	Ni	P	S	Quenching Hardness（HRC）	Annealing Hardness（HRC）	Impact toughness（J）
2.5-3.2	≦2.0	≦2.0	25-28	≦1.0	≦0.08	≦0.08	≥ 56	35-45	≥ 6

Note: 1.The size of the impact specimen is 20x20x110 (without notch)

May also contain low% o f Mo, Cu, Nb, B, etc.

Fig 1 shows the microstructure of eutectic high chromium cast iron.

Fig 1 the microstructure of eutectic high chromium cast iron: (a): Low magnification; (b): High magnification

The microstructure of the alloy consists of a network of iron/chromium eutectic carbides, supported by an austenitic/martensitic matrix, with precipitated secondary carbides.