SG IRON ROll (Spheroidal Graphite Iron Roll)

Spheroidal Graphite Iron Rolls are casted from a specific type of iron compound where the free carbon takes the shape of spheroids or nodules, thereby eliminating the notch effect of flake graphite and improving upon the mechanical properties of the cast iron. 

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SPHEROIDAL GRAPHITE IRON ROLL

Spheroidal Graphite Iron Rolls are casted from a specific type of iron compound where the free carbon takes the shape of spheroids or nodules, thereby eliminating the notch effect of flake graphite and improving upon the mechanical properties of the cast iron. These are of mainly following types:

Pearlitic Spheroidal Graphite Iron Rolls:

Pearlitic spheroidal Graphite rolls have a thick layer of cast iron with nodular graphite. The name of such a roll is based on the fact that the material consists of nodular graphite and carbides in a pearlitic matrix. The softest grades have a pearlitic matrix containing ferrite around the graphite nodules, while the higher hardness grades have a complete pearlitic matrix. The Carbide content increases proportionately with the hardness. The hardness is covered in quite a big range, from 40 degrees shore C to 70 degrees shore C depending on the rolled product or as per customer requirement.

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TYPES OF PEARLITIC SG IRON ROLL AND
THERE CHEMICAL COMPOSITION

Grades Grades Si Mn P S Ni Cr Mo
SGP I
2.90~3.60
1.0~2.20
0.20~0.8
≤0.10
≤0.030
3.01~.05
0.20~1.0
0.50~1.0
SGP II
2.90~3.60
1.0~2.0
0.20~0.8
≤0.10
≤0.030
3.51~4.50
0.30~1.5
0.50~1.0
SGP III
2.90~3.60
1.40~2.0
.40~1.0
≤0.15
≤0.030
2.51~3.00
0.20~1.20
0.20~0.80
CORE
2.90~3.70
1.20~2.60
0.50~1.0
≤0.15
≤0.030
≤0.15
≤0.08
0.5
pic 3

Acicular Spheroidal Graphite Iron Rolls:

Acicular spheroidal Graphite Rolls also have a thick layer of Cast Iron with nodular graphite. Here, the name of such a roll is based on the fact that the material consists of nodular graphite and carbides in a pearlitic – bainitic matrix. The carbide content is considerably higher in the harder grades than the softer ones. The hardness range varies from 60 degrees shore to 80 degrees shore.

TYPES OF ACICULAR SG IRON ROLL AND
THERE CHEMICAL COMPOSITION

Grades Grades Si Mn P S Ni Cr Mo
SGP I
2.90~3.60
1.0~2.20
0.20~0.8
≤0.15
≤0.030
1.50~2.00
0.10~0.60
0.20~0.80
SGP II
2.90~3.60
1.40~2.0
0.40~1.0
≤0.15
≤0.030
2.01~2.50
0.20~1.0
0.20~0.80
CORE
2.90~3.70
1.20~2.60
0.50~1.0
≤0.15
≤0.030
≤0.15
≤0.08
≤0.5

Why Choose Us

  • Jay Market Creators Private Limited is a veteran supplier of steel plants.
  • We provide the highest quality Tungsten Carbide rings with laser-sharp precision with the latest generation machinery.
  • Jay Market Creators Private Limited has been an established brand in the steel industry for two decades.
  • We have a dedicated team of Engineers and Tech Support to eliminate issues.
  • Products are manufactured in facilities consisting of auto-presses, Vacuum pressure Sintering Furnaces, wire cutting machines, CNC Machines, CMMs, and EDMs producing accurate products as per customers’ requirements.
  • Our team has a strict quality control system to ensure the inspection process and product quality before shipment.
  • We provide value-added services to our clients.

Inspection Process

  • Raw material inspection is conducted by an Inductive Coupled Plasma Emission Spectrometer (ICP).
  • Experienced and qualified inspectors commence an in-process inspection.
  • Internal Crack check is done by ultrasonic fault detector.
  • Dynamic balance checking is conducted through a digital method.
  • Final dimensional inspection by CMM.
  • Final Metallurgical structural inspection using a Metallographic Microscope.
  • Hardness inspection commenced by Digital hardness checking method before dispatching materials.