Pearlitic ductile cast iron roll

Pearlitic ductile cast iron roll

Chemical Analysis

Designation

Matenal code

C

Si

Mn

Ni

Cr

Mo

Mg

Pearlitic ductile cast iron rollⅠ

SGPⅠ

3.00-3.40

1.40-1.90

0.40-0.80

 1.50-2.00

0.20-0.60

0.20-0.60

≥0.04

Pearlitic ductile cast iron rollⅡ

SGP Ⅱ

3.00-3.40

1.40-1.90

0.40-0.80

2.01-2.50

0.20-1.00

0.20-0.60

≥0.04

Pearlitic ductile cast iron rollⅢ

SGPⅢ

3.00-3.40

1.40-1.90

0.40-0.80

1.10-2.00

0.20-1.20

0.20-0.60

≥0.04

Physical Properies

Designation

Matenal code

Barrel hardness HSD

Neck hardness HSD

Tensile Strength Mpa

Pearlitic ductile cast iron rollⅠ

SGPⅠ

45-55

35-55

>450

Pearlitic ductile cast iron rollⅡ

SGPⅡ

55-65

35-55

>450

Pearlitic ductile cast iron rollⅢ

SGPⅢ

65-72

35-55

>450

Microstructure

Designation

Material code

Microstructure

Pearlitic ductile cast iron rollⅠ

SGPⅠ

Pearlite + cementite + small graphite
Pearlitic ductile cast iron rollⅡ

SGPⅡ

Pearlite + cementite + small graphite
Pearlitic ductile cast iron rollⅢ

SGPⅢ

Globular pearlite+carbide+graphite or a small amount of pearlite+bainite+carbide+spherical graphite

Application

Designation

Matenal code

Application

Pearlitic ductile cast iron rollⅠ

SGPⅠ

Profile , rods , wire and narrow strip mill thick ,in the rolling mill stand
Pearlitic ductile cast iron rollⅡ

SGPⅡ

Profile , rods , wire and narrow strip mill thick ,in the rolling mill stand
Pearlitic ductile cast iron rollⅢ

SGPⅢ

Profile , rods , wire and narrow strip mill thick ,in the rolling mill stand