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Specifications : C I Alloy Rings |
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Chemical composition |
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C |
3.5 - 4.0 % |
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Si |
2.4 - 3.0 % |
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Mn |
0.5 - 0.8 % |
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P |
0.4 - 0.6 % |
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S |
0.12 % max. |
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Cr |
0.30 % max. |
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Cu |
0.30 % max. |
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Microstructure |
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Graphite |
Preferably lamellar & uniformly
distributed.
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ASTM Flake Types |
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AB |
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90% |
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C |
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Nil |
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DE |
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10 % max. |
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Size (ASTM)
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5 to 8 |
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Matrix |
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Pearlite |
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Sorbite |
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Ferrite |
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5 % |
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Cementite |
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Traces |
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Phosphide Eutectic |
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Reticular |
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Physical Properties |
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Hardness
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95 - 105 HRB |
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Bending Strength |
Min. 35 kp/sq. mm. |
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Modulus of Elasticity |
8500 - 11500 kp/sq. mm. |
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Density |
7.3 gm./cu. cm. |
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