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>

Chemical Analysis

Designation of rolls

C

Si

Mn

P

S

Ni

Cr

Mo

V

W

Nb

CrMo indefinite chilled cast iron rolls

2.9/3.6

0.6/1.2

0.4/1.2

≤0.2

≤0.1

0.6/1.2

0.2/0.6

NiCrMo indefinite chilled cast iron rolls (I)

2.9/3.6

0.6/1.2

0.4/1.2

≤0.2

≤0.1

0.5/1.0

0.7/1.2

0.2/0.6

NiCrMo indefinite chilled cast iron rolls (II)

2.9/3.6

0.6/1.2

0.4/1.2

≤0.2

≤0.1

1.0/2.0

0.7/1.2

0.2/0.6

NiCrMo indefinite chilled cast iron rolls (III)

2.9/3.6

0.6/1.2

0.4/1.2

≤0.2

≤0.1

2.0/3.0

0.7/1.2

0.2/1.0

NiCrMo indefinite chilled cast iron rolls (IV)
2.9/3.6

0.6/1.5

0.4/1.2

≤0.1

≤0.05

3.0/4.8

1.0/2.0

0.2/1.0

NiCrMo indefinite chilled cast iron rolls (V)
2.9/3.6

0.6/1.5

0.4/1.2

≤0.1

≤0.05

3.0/4.8

1.0/2.0

0.2/2.0

0.2/2.0

0/2.0

0/2.0

Physical Properties

Designation of rolls	Barrel hardness (HSD)	Neck hardness (HSD)	Tensile strength (MPa)
CrMo indefinite chilled cast iron rolls	55~70	35~55	＞160
NiCrMo indefinite chilled cast iron rolls (I)	60~72	35~55	＞160
NiCrMo indefinite chilled cast iron rolls (II)	62~72	35~55	＞160
NiCrMo indefinite chilled cast iron rolls (III)	65~75	35~55	＞350
NiCrMo indefinite chilled cast iron rolls (IV)	70~83	35~55	＞350
NiCrMo indefinite chilled cast iron rolls (V)	77~85	35~55	＞350

Microstructure

Designation of rolls

Microstructure

CrMo indefinite chilled cast iron rolls

Pearlite + cementite + small percentage graphite

NiCrMo indefinite chilled cast iron rolls (I)

Pearlite + cementite + small percentage graphite

NiCrMo indefinite chilled cast iron rolls (II)

Fine pearlite + cementite + small percentage graphite

NiCrMo indefinite chilled cast iron rolls (III)

Sorbite + cementite + small percentage graphite

NiCrMo indefinite chilled cast iron rolls (IV)
Sorbite + cementite + small percentage graphite

NiCrMo indefinite chilled cast iron rolls (V)
Tempered martensite + small percentage bainite + cementite + small percentage graphite

Application

Designation of rolls

Application

CrMo indefinite chilled cast iron rolls

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

NiCrMo indefinite chilled cast iron rolls (I)

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

NiCrMo indefinite chilled cast iron rolls (II)

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

NiCrMo indefinite chilled cast iron rolls (III)

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

NiCrMo indefinite chilled cast iron rolls (IV)
Work roll for finishing stands of hot strip mill, Intermediate plate mill, tempered mill

NiCrMo indefinite chilled cast iron rolls (V)
Work roll for finishing stands of hot strip mill, Intermediate plate mill, tempered mill