Metal Rolls & Rings

We are the leading Rolls & Rings manufacturing company with Ladle Refining & Vacuum Degassing facility in North India, growing at a fast pace since its inception in the year 1985. We are proud of our strategic achievements.

Metal Rolls & Rings
Metal Rolls & Rings
Metal Rolls & Rings

ALLOY STEEL BASE ROLLS & RINGS (ADAMITE)

These Rolls & Rings are alloyed with Nickel, Chromium, Manganese and Molybdenum with Carbon content between 0.50% and 2.00% as well as little amount of Vanadium is also added for the improvement of better microstructure. So, these are capable of a higher mechanical strength with thermal and wear resistance. These Rolls & Rings undergo a sophisticated multi-stage high temperature Heat Treatment (Double Annealing followed by tempering cycle) to give the combination of hardness, toughness and wear resistance required for the particular application. The lower Carbon grades will have a structure consisting of ferrite and fine Pearlite which, as the Carbon content is raised, transitions to a fully Pearlitic Structure and on to one containing free carbide in a matrix of fine Pearlite and even some Bainite for the highest Carbon grades. All rolls of this material are statically tangentially single poured.

Type of Rolls Typical Hardness(Shore°C)
ACS 38 35-40
ACS 43 40-45
ACS 48 45-50
ACS 52 50-55
Range of Chemical Composition
C% Mn% Si% Cr% Ni% Mo% V% S% P%
1.20 0.50 0.30 1.00 0.60 0.20 0.05
1.85 1.00 0.60 1.55 1.25 0.50 0.10 0.045 0.045
Typical Physical Properties
N/sq.mm. Tons/sq.in.
Tensile Strength 400 25
Bending Strength 850 55

SPHEROIDAL GRAPHITE (NODULAR) CAST IRON (S.G.I. PEARLITIC) ROLL & RINGS

These Rolls & Rings are essentially an Indefinite Chill type material, but with the Graphite in Nodular form instead of flake and having alloyed with higher % of Nickel & Molybdenum along with Carbon. So these rolls and rings have a much higher Mechanical Strength and allow the use of Iron Rolls in applications which would re-present too high a duty for a flake iron quality due to internal ‘Notch Effect’ of nodular graphite is relatively small. These rolls are very much suitable for the rolling of row products with wide range of applications due to its hardness penetration, good wear resistance and tough necks, and this material has become a benchmark.

Range of Chemical Composition
C% Mn% Si% Cr% Ni% Mo% Cu% S% P%
3.00 0.20 1.20 0.20 1.50 0.20
4.00 1.00 2.50 1.00 3.00 1.00 0.25 0.015 0.060
Typical Physical Properties
N/sq.mm. Tons/sq.in.
Tensile Strength 400 25
Bending Strength 850 55
Typical Hardness(Shore°C)
SG-PC47 45-50
SG-PC50 48-53
SG-PC53 50-55
SG-PC55 53-58
SG-PC58 55-60
SG-PC60 58-63
SG-PC63 60-65
SG-PC65 62-67
SG-PC67 65-70
SG-PC73 70-75
Application
Product Type of Mill Position
Billets & Sheet Bar 2 & 3 High Finishing
Billets & Sheet Bar Continuous All Positions
Beams Universal Vertical
Medium Sections 2 & 3 High Intermediate & Finishing
Small & Medium Sections Straightening
Bar & Small Sections 2 & 3 High All Positions
Rod 2 & 3 High Roughing & Intermediate
Plate 2 High Finishing
Plate 3 High All Positions
Plate 4 High Roughing & Finishing
Sheet 2 & 3 High Finishing
Wide Strip 2 & 4 High Roughing
TMT & Wire Rod 2 High Roughing & Intermediate

S.G.I. BAINITIC ACCICULAR ROLLS & RINGS

These Rolls & Rings are stronger and more wear resistance with respect of S.G.I. Pearlitic Rolls and Rings are capable of much higher hardness because S.G.I. Bainitic Accicular is more alloyed with very higher % of Nickel and Molybdenum than the S.G.I. Pearlitic and as a result, the acicular roll material has a bainitic matrix with increased carbide. The name of this material is based on its constituents of nodular graphite and carbides (needle-like) bainitic matrix, also called Lower Baintic. These Rolls become a benchmark in the rolling of long product and is suitable for a wide range of applications due to its hardness penetration, good wear resistance and tough necks.

Range of Chemical Composition
C% Mn% Si% Cr% Ni% Mo% Cu% S% P%
3.00 0.20 1.20 0.20 2.50 0.40
4.00 1.00 2.50 1.00 4.50 1.20 0.20 0.015 0.060
Typical Physical Properties
N/sq.mm. Tons/sq.in.
Tensile Strength 570 36
Bending Strength 1000 65
Typical Hardness(Shore°C)
SG-AC 55 53-58
SG-AC 58 55-60
SG-AC 60 58-63
SG-AC 63 60-65
SG-AC 65 63-68
SG-AC 68 65-70
SG-AC 70 68-73
SG-AC 73 68-75
SG-AC 75 72-77
SG-AC 77 75-80
Application
Product Type of Mill Position
Sheet & Coil Temper Back Up Rolls
Sheet & Coil Double Reduction Back Up Rolls
Sheet & Coil 2 High Skin Pass
Rod 2 & 3 High Intermediate & Finishing
Bar 2 & 3 High Finishing
Small Sections 2 & 3 High Roughing & Finishing
Medium Sections 2 & 3 High Finishing
Beams Universal Horizontal Rolls & Sleeves
Small & Medium Sections Straightening
Plate 2 & 3 & 4 High
Sheet 2 & 3 High Finishing
Wide Strip 2 & 4 High Roughing & Finishing
TMT & Wire Rod 2 High Roughing & Intermediate

ALLOY INDEFINITE CHILLED IRON ROLLS

Alloys Indefinite Chill Iron Rolls have a structure consisting of more flake graphite with few carbides in a Pearlitic Matrix. Harder grades have a Bainitic-Martensitic matrix with an increased amount of carbides. The presence of flake graphite improves spalling resistance and also enhances resistance to fire-cracking. All of these properties combined with the excellent surface make AIC Alloy Indefinite Chill very suitable for rolling flats sections and similar products where surface finish is critical. Due to alloy additions, hardness penetration is better than that of a clear chill roll and this material may be used in applications with deeper grooves such as small and medium section rolling and also for finishing billets. All rolls of this material are statically Tangentially Single Poured.

Range of Chemical Composition
C% Mn% Si% Cr% Ni% Mo% V% S% P%
2.80 0.60 0.50 0.80 0.80 0.30
3.80 1.10 1.00 1.20 1.20 0.60 0.10 0.060 0.100
Typical Physical Properties
N/sq.mm. Tons/sq.in.
Tensile Strength 200 12
Bending Strength 320 20
Application
Product Type of Mill Position
Plate 2 & 3 & 4 High Roughing & Finishing
Medium & Narrow Strip 2 High Roughing
Billet & Sheet Bar 2 & 3 High Finishing
Medium Sections Continuous Intermediate & Finishing
Medium Sections 2 & 3 High Intermediate & Finishing
Light Sections 2 & 3 High All Positions
Bar 2 & 3 High All Positions
Rod 2 & 3 High Roughing & Intermediate
Medium & Light Sections Straightening
TMT 2 High Intermediate & Finishing

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