Camet Metallurgical Technologies Co., Ltd. rolling mill rolls / rings Rod and Bar Mills/Section Mills/Beam & Rail Rolling/Flat Products Rolling/Narrow HSMs/Cold Mills/Seamless P&T Rolling/Tungsten Carbide Rings /Furnace rolls/bearing housings/slag pot/ingot mold/hearth rolls/table rolls/refractories/Copper mould tube/Universal coupling<BR>

Designation of rolls

C

Si

Mn

P

S

Ni

Cr

Mo

Mg

CrMo semi-chilled SG cast iron rolls

2.9/3.6

0.8/2.5

0.4/1.2

≤0.25

≤0.03

0.2/0.6

0.2/0.6

＞0.04

CrMo indefinite chilled SG cast iron rolls

2.9/3.6

0.8/2.5

0.4/1.2

≤0.25

≤0.03

0.2/0.6

0.2/0.6

＞0.04

NiCrMo indefinite chilled SG cast iron rolls (I)

2.9/3.6

0.8/2.5

0.4/1.2

≤0.25

≤0.03

0.5/1.0

0.2/0.6

0.2/0.6

＞0.04

NiCrMo indefinite chilled SG cast iron rolls (II)

2.9/3.6

0.8/2.5

0.4/1.2

≤0.25

≤0.03

1.0/2.0

0.3/1.2

0.2/0.8

＞0.04

Pearlitic nodular cast iron rolls (I)

2.9/3.6

1.4/2.2

0.4/1.0

≤0.15

≤0.03

1.5/2.0

0.1/0.6

0.2/0.8

＞0.04

Pearlitic nodular cast iron rolls (II)

2.9/3.6

1.2/2.0

0.4/1.0

≤0.15

≤0.03

2.0/2.5

0.2/1.0

0.2/0.8

＞0.04

Pearlitic nodular cast iron rolls (III)

2.9/3.6

1.0/2.0

0.4/1.0

≤0.15

≤0.03

2.5/3.0

0.2/1.2

0.2/0.8

＞0.04

bainitic nodular cast iron rolls (I)

2.9/3.6

1.2/2.2

0.2/0.8

≤0.10

≤0.03

3.0/3.5

0.2/1.0

0.5/1.0

＞0.04

bainitic nodular cast iron rolls (II)

2.9/3.6

1.2/2.0

0.2/0.8

≤0.10

≤0.03

3.5/4.5

0.3/1.5

0.5/1.0

＞0.04

Physical Properties

Designation of rolls	Barrel hardness (HSD)	Neck hardness (HSD)	Tensile strength (MPa)
CrMo semi-chilled SG cast iron rolls	40~55	32~50	＞300
CrMo indefinite chilled SG cast iron rolls	55~70	35~55	＞300
NiCrMo indefinite chilled SG cast iron rolls (I)	48~70	35~55	＞320
NiCrMo indefinite chilled SG cast iron rolls (II)	48~70	35~55	＞320
Pearlitic nodular cast iron rolls (I)	45~55	35~55	＞450
Pearlitic nodular cast iron rolls (II)	55~65	35~55	＞450
Pearlitic nodular cast iron rolls (III)	62~72	35~55	＞450
bainitic nodular cast iron rolls (I)	55~78	32~45	＞350
bainitic nodular cast iron rolls (II)	60~80	32~45	＞350

Microstructure

Designation of rolls

Microstructure

CrMo semi-chilled SG cast iron rolls

Pearlite + cementite + SG + small percentage fermite

CrMo indefinite chilled SG cast iron rolls

Pearlite + cementite + SG

NiCrMo indefinite chilled SG cast iron rolls (I)

Pearlite + cementite + SG

NiCrMo indefinite chilled SG cast iron rolls (II)

Fine pearlite + cementite + SG

Pearlitic nodular cast iron rolls (I)

pearlite + cementite + small percentage fermite

Pearlitic nodular cast iron rolls (II)

pearlite + cementite + small percentage fermite

Pearlitic nodular cast iron rolls (III)

pearlite + cementite + small percentage fermite

bainitic nodular cast iron rolls (I)

bainite + cementite + SG

bainitic nodular cast iron rolls (II)

bainite + cementite + SG

Application

Designation of rolls

Application

CrMo semi-chilled SG cast iron rolls

Section mill, bar mill, roughing stands of wire-rod mill, work roll of rail mill

CrMo indefinite chilled SG cast iron rolls

Section mill, bar mill, intermediate and finishing stands of wire-rod mill

NiCrMo indefinite chilled SG cast iron rolls (I)

Section mill, bar mill, intermediate and finishing stands of wire-rod mill

NiCrMo indefinite chilled SG cast iron rolls (II)

Section mill, bar mill, intermediate and finishing stands of wire-rod mill

Pearlitic nodular cast iron rolls (I)

roughing stands of bar mill and wire-rod mill

Pearlitic nodular cast iron rolls (II)

roughing stands of bar mill and wire-rod mill

Pearlitic nodular cast iron rolls (III)

roughing stands of bar mill and wire-rod mill

bainitic nodular cast iron rolls (I)

roughing stands of bar mill and wire-rod mill

bainitic nodular cast iron rolls (II)

roughing stands of bar mill and wire-rod mill