Products

Centrifugal Casting Alloy Indefinite Chill Cast Iron Roll


Properties

The shell has a remarkable mechanical performance. With virtually no fall of in hardness due to the quantity of graphite remains basically unchanged throughout the working layer. The hardness of roll depends mainly on the type of matrix, namely sorbite, bainite or martensite.       

Mechanical Properties

Hardness of shell

HSD60-85

Hardness of neck

HSD35-48

Tensile Strength of core

≥450Mpa



Chemical Analysis
 

Grade

Hardness(HSD)

C

Si

Mn

Ni

Cr

Mo

IndefiniteⅠ

60-70

3.0/3.5

0.5/1.0

0.5/1.0

0.5/1.0

0.5/1.0

0.2/0.6

IndefiniteⅡ

62-72

3.0/3.5

0.5/1.0

0.5/1.0

1.0/2.0

0.5/1.0

0.2/0.6

IndefiniteⅢ

65-75

3.0/3.5

0.5/1.0

0.5/1.0

2.0/3.0

0.7/1.2

0.2/0.6

IndefiniteⅣ

70-85

3.0/3.5

0.5/1.0

0.5/1.0

3.0/5.0

1.0/2.0

0.2/0.6

  

Applications

For the finishing stands of continuous rolling mill of strip and bar, the pre-finishing stands of high speed wire, the intermediate and the front of finishing stands of small section, also utilized in thin plate and straightening roll.