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cast rolls

More cast iron rolls

Alloy indefinite chilled cast iron roll, Alloy chilled cast iron roll

Alloy SG ductile cast iron roll, Pearlitic ductile cast iron roll

Bainite ductile cast iron roll, Centrifugal cast iron roll

Alloy indefinite chilled cast iron roll
Alloy chilled cast iron roll
Alloy SG ductile cast iron roll
Pearlitic ductile cast iron roll
Bainite ductile cast iron roll
Centrifugal cast iron roll

Alloy indefinite chilled cast iron rolls

Chemical Analysis

Designation of rolls

Material code

C

Si

Mn

Ni

Cr

Mo

CrMo indefinite chilled cast iron rolls

IC

3.1-3.4

0.6-0.9

0.5-1.0

 

0.7-1.1

0.2-0.6

NICrMo indefinite chilled cast iron rolls（Ⅰ）

IC（Ⅰ）

3.1-3.4

0.6-0.9

0.5-1.0

0.6-0.8

0.7-1.1

0.2-0.6

NiICrMo indefinite chilled cast iron rolls(Ⅱ)

IC(Ⅱ)

3.1-3.4

0.6-1.0

0.5-1.0

2.2-2.8

0.7-1.1

0.2-0.6

NiCrMo indefinite chilled cast iron rolls（Ⅲ）

IC（Ⅲ）

3.1-3.4

0.6-1.0

0.5-1.0

2.2-2.8

0.8-1.3

0.2-1.0

NiCrMo indefinite chilled cast iron rolls（Ⅳ）

IC（Ⅳ）

3.1-3.4

0.6-1.0

0.5-1.0

3.1-4.3

1.0-1.3

0.2-1.0

NiCrMo indefinite chilled cast iron rolls（Ⅴ）

IC（Ⅴ）

3.1-3.4

0.6-1.2

0.5-1.0

3.8-4.5

1.4-2.0

0.2-1.2

Physical Properties

Designation of rolls

Material code

   Barrel hardness（HSD）

Neck hardness (HSD)

Tensile strength (Mpa

CrMo indefinite chilled cast iron rolls

IC

50-70

35-55

＞160

NICrMo indefinite chilled cast iron rollsⅠ)

IC（Ⅰ）

55-72

35-55

＞160

NiICrMo indefinite chilled cast iron rolls(Ⅱ)

IC(Ⅱ)

55-72

35-55

＞160

NiCrMo indefinite chilled cast iron rolls（Ⅲ）

IC（Ⅲ）

65-78

35-55

＞350

NiCrMo indefinite chilled cast iron rolls（Ⅳ）

IC（Ⅳ）

70-83

35-55

＞350

NiCrMo indefinite chilled cast iron rolls（Ⅴ）

IC（Ⅴ）

77-82

35-55

＞350

Microstructure

Designation of rolls

Material code

Microstructure

CrMo indefinite chilled cast iron rolls

IC

Pearlite+ cementite+ small percentage graphite

NICrMo indefinite chilled cast iron rollsⅠ)

IC（Ⅰ）

Pearlite+ cementite+ small percentage graphite

NiICrMo indefinite chilled cast iron rolls(Ⅱ)

IC(Ⅱ)

Fine Pearlite+ cementite+ small percentage graphite

NiCrMo indefinite chilled cast iron rolls（Ⅲ）

IC（Ⅲ）

Sorbite cementite + small percentage graphite

NiCrMo indefinite chilled cast iron rolls（Ⅳ）

IC（Ⅳ）

Sorbite tempered bainite+ carbide +graphite + A small amount of martensite or bainite + carbide +graphite

NiCrMo indefinite chilled cast iron rolls（Ⅴ）

IC（Ⅴ）

Sorbite tempered bainite+ carbide +graphite + A small amount of martensite or bainite + carbide +graphite

Application

Designation of rolls

Material code

Application

CrMo indefinite chilled cast iron rolls

IC

Section mill、bar mill、intermediate and finishing stands of wire–rod mill

NICrMo indefinite chilled cast iron rollsⅠ)

IC（Ⅰ）

Section mill、bar mill、intermediate and finishing stands of wire–rod mill

NiICrMo indefinite chilled cast iron rolls(Ⅱ)

IC(Ⅱ)

Section mill、bar mill、intermediate and finishing stands of wire–rod mill

NiCrMo indefinite chilled cast iron rolls（Ⅲ）

IC（Ⅲ）

Section mill、bar mill、intermediate and finishing stands of wire–rod mill

NiCrMo indefinite chilled cast iron rolls（Ⅳ）

IC（Ⅳ）

Profile, rod and wire, narrow strip mill finishing stand, Plate fiat rack, strip finishing

NiCrMo indefinite chilled cast iron rolls（Ⅴ）

IC（Ⅴ）

Plate. flat rack, strip finishing

Alloy chilled cast iron rolls

Chemical Analysis

Designation of rolls

Material code

C

Si

Mn

Ni

Cr

Mo

NICrMo chilled cast iron rolls (Ⅰ)

CC (Ⅰ)

3.00-3.40

0.30-0.80

0.20-1.00

0.50-1.00

0.20-0.60

0.20-0.60

NICrMo chilled cast iron rolls (Ⅱ)

CC (Ⅱ)

3.00-3.40

0.30-0.80

0.20-1.00

1.10-2.00

0.30-1.20

0.20-0.60

NICrMo chilled cast iron rolls (Ⅲ)

CC (Ⅲ)

3.00-3.40

0.30-0.80

0.20-1.00

2.10-3.00

0.50-1.50

0.20-0.60

NICrMo chilled cast iron rolls（Ⅳ）

CC（Ⅳ）

3.00-3.40

0.30-0.80

0.20-1.00

3.10-4.00

0.50-1.70

0.20-0.60

Physical Properties

Designation of rolls

Material code

   Barrel hardness（HSD）

Neck hardness (HSD)

Tensile strength (Mpa

NICrMo chilled cast iron rolls (Ⅰ)

CC (Ⅰ)

60-70

32-50

＞150

NICrMo chilled cast iron rolls (Ⅱ)

CC (Ⅱ)

62-75

35-52

＞150

NICrMo chilled cast iron rolls (Ⅲ)

CC (Ⅲ)

65-80

32-45

＞350

NICrMo chilled cast iron rolls（Ⅳ）

CC（Ⅳ）

70-85

32-45

＞350

Microstructure

Designation of rolls

Material code

Microstructure

NICrMo chilled cast iron rolls (Ⅰ)

CC (Ⅰ)

Pearlite + cementite

NICrMo chilled cast iron rolls (Ⅱ)

CC (Ⅱ)

Fine pearlite + cementite

NICrMo chilled cast iron rolls (Ⅲ)

CC (Ⅲ)

Fine pearlite cementite

NICrMo chilled cast iron rolls（Ⅳ）

CC（Ⅳ）

sorbite+ cementite

Application

Designation of rolls

Material code

Application

NICrMo chilled cast iron rolls (Ⅰ)

CC (Ⅰ)

Section mill、bar mil. wire-rod mill narrow strip mill、finishing stand

NICrMo chilled cast iron rolls (Ⅱ)

CC (Ⅱ)

Section mill、bar mil. wire-rod mill narrow strip mill、finishing stand

NICrMo chilled cast iron rolls (Ⅲ)

CC (Ⅲ)

Section mill、bar mil. wire-rod mill narrow strip mill、finishing stand

NICrMo chilled cast iron rolls（Ⅳ）

CC（Ⅳ）

Section mill、bar mil. wire-rod mill narrow strip mill、finishing stand

Alloy SG ductile cast iron roll

Chemical Analysis

Designation of rolls

Material code

C

Si

Mn

Ni

Cr

Mo

Mg

CrMo indifinite chilled SG cast iron rolls

SG Ⅱ

3.00-3.40

1.40-1.90

0.20-0.80

 

0.20-0.60

0.20-0.60

≥0.04

NiCrMo indifinite chilled SG cast iron rolls (Ⅰ)

SG Ⅳ

3.00-3.40

1.40-1.90

0.40-0.80

0.50-1.00

0.20-0.60

0.20-0.60

≥0.04

NiCrMo indifinite chilled SG cast iron rolls (Ⅱ)

SG Ⅴ

3.00-3.40

1.40-1.90

0.40-0.80

1.10-2.00

0.30-1.00

0.20-0.60

≥0.04

Physical Properties

Designation of rolls

Material code

   Barrel hardness（HSD）

Neck hardness (HSD)

Tensile strength (Mpa

CrMo indifinite chilled SG cast iron rolls

SG Ⅱ

50-70

35-55

＞320

NiCrMo indifinite chilled SG cast iron rolls (Ⅰ)

SG Ⅳ

55-70

35-55

＞320

NiCrMo indifinite chilled SG cast iron rolls (Ⅱ)

SG Ⅴ

60-70

35-55

＞320

Microstructure

Designation of rolls

Material code

Microstructure

CrMo indifinite chilled SG cast iron rolls

SG Ⅱ

Pearlite+ cementite+ small Graphite

NiCrMo indifinite chilled SG cast iron rolls (Ⅰ)

SG Ⅳ

Pearlite+ cementite+ small Graphite

NiCrMo indifinite chilled SG cast iron rolls (Ⅱ)

SG Ⅴ

Fine pearlite + cementite + small Graphite

Application

Designation of rolls

Material code

Application

CrMo indifinite chilled SG cast iron rolls

SG Ⅱ

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

NiCrMo indifinite chilled SG cast iron rolls (Ⅰ)

SG Ⅳ

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

NiCrMo indifinite chilled SG cast iron rolls (Ⅱ)

SG Ⅴ

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

Pearlitic ductile cast iron roll

Chemical Analysis

Designation of rolls

Material code

C

Si

Mn

Ni

Cr

Mo

Mg

Pearlitic ductile cast iron rolls (Ⅰ)

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 rolls (Ⅱ)

SGPⅡ

3.00-3.40

1.20-2.00

0.40-0.80

2.01-2.50

0.20-1.00

0.20-0.60

≥0.04

Pearlitic ductile cast iron rolls (Ⅲ)

SGPⅢ

3.00-3.40

1.00-2.00

0.40-0.80

2.51-3.00

0.20-1.00

0.20-0.60

≥0.04

Physical Properties

Designation of rolls

Material code

   Barrel hardness（HSD）

Neck hardness (HSD)

Tensile strength (Mpa)

Pearlitic ductile cast iron rolls (Ⅰ)

SGPⅠ

45-55

35-55

＞450

Pearlitic ductile cast iron rolls (Ⅱ)

SGPⅡ

55-65

35-55

＞450

Pearlitic ductile cast iron rolls (Ⅲ)

SGPⅢ

62-72

35-55

＞450

Microstructure

Designation of rolls

Material code

Microstructure

Pearlitic ductile cast iron rolls (Ⅰ)

SGPⅠ

Pearlite + cementite+ small Graphite

Pearlitic ductile cast iron rolls (Ⅱ)

SGPⅡ

Pearlite + cementite+ small Graphite

Pearlitic ductile cast iron rolls (Ⅲ)

SGPⅢ

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

Application

Designation of rolls

Material code

Application

Pearlitic ductile cast iron rolls (Ⅰ)

SGPⅠ

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

Pearlitic ductile cast iron rolls (Ⅱ)

SGPⅡ

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

Pearlitic ductile cast iron rolls (Ⅲ)

SGPⅢ

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

Bainite ductile cast iron roll

Chemical Analysis

Designation of rolls

Material code

C

Si

Mn

Ni

Cr

Mo

Mg

Bainite ductile cast iron rolls Centrifugal (Ⅰ)

SGA Ⅰ

3.00-3.40

1.20-2.20

0.40-0.80

3.01-3.50

0.20-0.80

0.50-1.00

≥0.04

Bainite ductile cast iron rolls Centrifugal (Ⅱ)

SGA Ⅱ

3.00-3.40

1.00-2.00

0.40-0.80

3.51-4.50

0.20-1.00

0.50-1.00

≥0.04

Physical Properties

Designation of rolls

Material code

   Barrel hardness（HSD）

Neck hardness (HSD)

Tensile strength (Mpa)

Bainite ductile cast iron rolls Centrifugal (Ⅰ)

SGA Ⅰ

55-78

32-45

＞350

Bainite ductile cast iron rolls Centrifugal (Ⅱ)

SGA Ⅱ

60-80

32-45

＞350

Microstructure

Designation of rolls

Material code

Microstructure

Bainite ductile cast iron rolls Centrifugal (Ⅰ)

SGA Ⅰ

Bainite + A small amount of martensite+ Carbide + graphite

Bainite ductile cast iron rolls Centrifugal (Ⅱ)

SGA Ⅱ

Bainite + A small amount of martensite+ Carbide + graphite

Application

Designation of rolls

Material code

Application

Bainite ductile cast iron rolls Centrifugal (Ⅰ)

SGA Ⅰ

Beam, bar, wire rod mil rough rolling, the rolling, pre-finishing mill stand;. seamless steel pipe mill reducing rack set

Bainite ductile cast iron rolls Centrifugal (Ⅱ)

SGA Ⅱ

Beam, bar, wire rod mil rough rolling, the rolling, pre-finishing mill stand;. seamless steel pipe mill reducing rack set

Centrifugal cast iron roll

Chemical Analysis

Designation of rolls

Material code

C

Si

Mn

Ni

Cr

Mo

Centrifugal cast iron rolls (Ⅰ)

HCrⅠ

3.00-3.30

0.30-1.00

0.50-1.20

0.70-1.70

12.00-15.00

0.70-1.50

Centrifugal cast iron rolls (Ⅱ)

HCrⅡ

3.00-3.30

0.30-1.00

0.50-1.20

0.70-1.70

15.01-18.00

0.70-1.50

Centrifugal cast iron rolls (Ⅲ)

HCrⅢ

3.00-3.30

0.30-1.00

0.50-1.20

0.70-1.70

18.01-22.00

1.51-3.00

Physical Properties

Designation of rolls

Material code

   Barrel hardness（HSD）

Neck hardness (HSD)

Tensile strength (Mpa

Centrifugal cast iron rolls (Ⅰ)

HCrⅠ

60-75

32-45

＞350

Centrifugal cast iron rolls (Ⅱ)

HCrⅡ

65-80

32-45

＞350

Centrifugal cast iron rolls (Ⅲ)

HCrⅢ

75-90

32-45

＞350

Microstructure

Designation of rolls

Material code

Microstructure

Centrifugal cast iron rolls (Ⅰ)

HCrⅠ

Bainite +carbide

Centrifugal cast iron rolls (Ⅱ)

HCrⅡ

Bainite +carbide

Centrifugal cast iron rolls (Ⅲ)

HCrⅢ

A small amount of bainite + martensite + carbide

Application

Designation of rolls

Material code

Application

Centrifugal cast iron rolls (Ⅰ)

HCrⅠ

Beam, bar, wire rod mill finishing stand; Tropical rough rolling and rolling and finishing work roll front; Wide plate mill work roll;

Centrifugal cast iron rolls (Ⅱ)

HCrⅡ

Beam, bar, wire rod mill finishing stand; Tropical rough rolling and rolling and finishing work roll front; Wide plate mill work roll;

Centrifugal cast iron rolls (Ⅲ)

HCrⅢ

Beam, bar, wire rod mill finishing stand; Tropical rough rolling and rolling and finishing work roll front; Wide plate mill work roll;

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