Chilled Cast Iron

Chilled Cast Irons with Flake Graphite

Indefinite Chilled

The microstructure of Indefinite Chilled Cast Irons has a carbide-rich yet tough material. The presence of flake graphite enhances chipping resistance and fire-cracking resistance, making Indefinite Chilled Cast Irons suitable for products that require an excellent surface finish. The material is ideal for rolling flats, sections, and similar products with deeper grooves.

The microstructure of Indefinite Chilled Cast Irons has a carbide-rich yet tough material. The presence of flake graphite enhances chipping resistance and fire-cracking resistance, making Indefinite Chilled Cast Irons 

 suitable for products that require an excellent surface finish. The material is ideal for rolling flats, sections, and similar products with deeper grooves.

HS Range C Mn Si Ni Cr Mo UTS Kgf/mm²
50 – 60
Min
3.0
0.6
1.0
1.5
0.7
0.2
35
Max
3.5
0.9
1.5
2.0
1.2
0.4
45
60 – 70
Min
3.0
0.6
1.0
1.5
0.8
0.2
35
Max
3.5
0.9
1.5
2.5
1.2
0.4
45
70 – 80
min
3.1
0.6
0.9
1.5
0.8
0.2
35
Max
3.6
0.9
1.5
2.5
1.2
0.4
45

Double Poured Chilled

The microstructure of DPIC has a gradual transition from a carbide-rich surface containing a small amount of graphite to a grey core. The surface is intermediate between white and grey iron, with the amount of graphite reducing in harder grades towards the centre of the roll. The presence of flake graphite enhances chipping resistance and fire-cracking resistance, making DPIC suitable for products that require an excellent surface finish. The material is ideal for rolling flats, sections, and similar products with deeper grooves.

The microstructure of DPIC has a gradual transition from a carbide-rich surface containing a small amount of graphite to a grey core. The surface is intermediate between white and grey iron, with the amount of graphite 

 reducing in harder grades towards the centre of the roll. The presence of flake graphite enhances chipping resistance and fire-cracking resistance, making DPIC suitable for products that require an excellent surface finish. The material is ideal for rolling flats, sections, and similar products with deeper grooves.

HS Range C Mn Si Ni Cr Mo UTS Kgf/mm²
70 – 75
Min
3.1
0.6
0.7
2.2
1.2
0.2
38
Max
3.6
0.9
1.1
3.0
1.6
0.4
43
75 – 80
Min
3.1
0.6
0.7
2.2
1.2
0.2
38
Max
3.6
0.9
1.1
3.0
1.8
0.4
43
80 – 85
min
3.2
0.6
0.7
2.5
1.3
0.2
38
Max
3.6
0.9
1.0
3.5
1.9
0.4
43

Indefinite Chilled Double Poured

Our standard ICDP made specifically for hot strip mills has a microstructure that includes M3C type eutectic carbides and free graphite embedded in a tempered bainitic martensitic matrix, providing excellent resistance to wear and mill accidents. The work rolls for the late finishing stands of conventional HSM or Steckel mills are made of double-poured indefinite chill iron with carbide additions, manufactured through horizontal spin casting. The microstructure of the roll consists of homogeneously dispersed MC-carbides,Fe3C-carbides, and free graphite flakes embedded in a bainitic/martensitic matrix. The rolls are heat-treated at low temperatures to ensure favourable stress levels and the required hardness range.

Our standard ICDP made specifically for hot strip mills has a microstructure that includes M3C type eutectic carbides and free graphite embedded in a tempered bainitic martensitic matrix, providing excellent resistance to wear 

and mill accidents. The work rolls for the late finishing stands of conventional HSM or Steckel mills are made of double-poured indefinite chill iron with carbide additions, manufactured through horizontal spin casting. The microstructure of the roll consists of homogeneously dispersed MC-carbides,Fe3C-carbides, and free graphite flakes embedded in a bainitic/martensitic matrix. The rolls are heat-treated at low temperatures to ensure favourable stress levels and the required hardness range.

ICDP-Enhanced Carbide

ICDP-EC’s superior wear resistance and uniform surface finish are achieved through a controlled microstructure comprising small, well-distributed, and harder carbide reinforcement throughout the roll’s life. This unique microstructure comprises a balance of primary M3C carbide and graphite within a matrix of fine-tempered martensite and bainite, with the addition of small niobium carbides throughout the structure. Moreover, the controlled spherical graphite morphology ensures even distribution and prevents differential wear and improves crack propagation resistance, making ICDP-EC ideal for rolling operations.
Material HS Range C Mn Si Ni Cr Mo V W Nb UTS Kgf/mm²
ICDP
70 – 83
Min
3
0.6
0.8
4
1.3
0.2
41
Max
3.6
1.3
1.2
4.9
2
0.5
45
ICDP-CE
75 – 85
Min
3.2
1
0.7
1.5
4
0.2
0.1
41
Max
3.6
1.7
1.5
3
6
3
3
1
1
45

Core Materials

The microstructure o indefinite Chilled Cast irons has a carbide-rich yet tough material. The presence of flake graphite enhances chipping resistance and fire-cracking resistance, making DPIC suitable for products that require an excellent surface finish. The material is ideal for rolling flats, sections, and similar products with deeper grooves.

Material HS Range C Mn Si Ni Cr Mo UTS Kgf/mm²
Lamellar Core
36 – 44
Min
2.5
0.4
1.2
0.2
0.3
0.1
18
Max
3.4
1.0
2.9
2.0
1.3
0.3
20
Nodular Core
36 – 44
Min
2.6
0.3
2.0
0.0
0.0
0.0
36
Max
3.5
1.1
3.0
1.5
0.6
0.3
40

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Deem Roll Tech Limited is one of the leading manufacturers of steel and alloy rolls in India, which constitute the building blocks of the iron and steel rolling mill industry.

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Head Office

  • C-1212, Swati Trinity, Nr. Applewoods Township, S. P. Ring Rd., Ahmedabad, Gujarat 380054
  • +91 79 4009 9474
  • +91 79 4002 7481
  • +91 99251 96196

Deem Roll Tech Limited is one of the leading manufacturers of steel and alloy rolls in India,
which constitute the building blocks of the iron and steel rolling mill industry.

Linkedin Youtube

Useful Links

Head Office

  • C-1212, Swati Trinity, Nr. Applewoods Township, S. P. Ring Rd., Ahmedabad, Gujarat 380054
  • +91 79 4009 9474
  • +91 99981 32220

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