DI Pipes

Ductile Iron, an advanced evolution of traditional cast iron, was innovated in 1949. Also termed Nodular Cast Iron or Spheroidal Graphite Iron (SGI), this material has become the global standard for water and sewage systems due to its superior engineering properties. Centrifugally cast ductile iron pipes are particularly preferred for their exceptional Pressure-bearing capacity, Impact resistance, Structural resilience against both static and dynamic stresses. These attributes make ductile iron pipes the optimal choice for reliable and long-lasting water infrastructure worldwide.

Advantages of Ductile Iron Pipe

  • Tremendous Tensile Strength
  • Pressure bearing ability
  • Withstands Severe Crushing Loads
  • Great beam Strength
  • Corrosion resistant
  • High Impact Resistance
  • High Bursting Strength
  • Sustains external static/dynamic loading
  • Easy to Install
  • Minimal installation cost
  • Zero Maintenance
  • No Cathodic Protection
  • Low pumping cost
  • Excellent hydraulic features

Rashmi Metaliks: Global Leader in Ductile Iron Pipe Solutions

As a premier global supplier of Ductile Iron (DI) Pipes, Rashmi Metaliks delivers engineered solutions for critical water infrastructure applications, including:

  • Potable water distribution
  • Raw water transmission
  • Wastewater management

Our products meet stringent international and European standards, ensuring compliance with the most demanding specifications. Engineered for excellence, Rashmi DI Pipes offer:

  • Exceptional structural integrity with superior pressure-bearing capacity
  • Long-term durability with proven corrosion resistance
  • Lifecycle cost efficiency through extended service life

With decades of demonstrated performance across global projects, we provide reliable, sustainable piping solutions that combine technical superiority with operational value for industrial and municipal applications worldwide.

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Product Range

Rashmi Metaliks supplies premium A+ grade Ductile Iron (DI) Pipes in diameters ranging from DN 80 to DN 1200, engineered to meet diverse industrial and municipal requirements.

Our DI Pipes offer:

  • Exceptional structural reliability with high safety factors
  • Superior adaptability to accommodate ground movement and stress
  • Versatile performance across multiple demanding applications

Recognized as an ideal pipeline solution, our products combine technical excellence with long-term durability for water transmission, wastewater management, and other critical infrastructure needs.

Product Ductile Iron (DI) Pipes suitable for Push-on-Joints*
Size Range DN 80 to DN 1200
Class of DI Pipes C20, C25, C30, C40, C50, C64, C100, PP, K-7 & K-9
Standard Length (in Meters) 5.5
Types Push-on Joint, Restrained Joint
Internal Linings
  • Cement Mortar Lining of OPC / SRC
  • Cement Mortar Lining with Seal Coat
  • Internal Fusion Bond Epoxy Coating
  • Internal Polyurethane Coating
External Coating - 1
  • Zinc Coating
  • Alloy of Zinc & Aluminium (ZnAl)
  • Blue or Red Epoxy
External Coating - 2
  • Blue or Red Epoxy
  • External Fusion Bond Epoxy Coating
  • External Polyurethane Coating
Conforming Specifications IS 8329/IS 9523, ISO 2531/BS EN 545, ISO 2531, ISO 7186, BS EN 598, ISO 4179 & ISO 8179

Mechanical Properties of DI Pipes by Rashmi Metaliks Limited
Mechanical Properties Ductile Iron (DI) Pipes suitable for Push-on-Joints*
Minimum Ultimate Tensile Strength Min. 420 MPA
Proof Strength Min. 270 MPA
Minimum Elongation DN40 to DN1000- 10%, DN1100 to DN2000-7%
Modulus of Elasticity DN40 to DN1000- 10%, DN1100 to DN2000-7%
Hardness Max. 230 HBW
Density 7,050 Kg per cubic meter
Coefficient of Thermal Expansion 11.5 x 10-6 per degree celsius (°C) (for temperature range 200°C -1000°C)
Impact Strength At Normal Temperature - 7 ft-lb (minimium) & At Low temperature - 3 ft-lb (minimum)

Angular Deflection of DI Pipes by Rashmi Metaliks Limited
Diameter Range (DN) Angular Deflection
DN 80 - DN 150 4°
DN 200 - DN 300 4°
DN 350-DN 600 3°
DN 700 - DN 800 2°
DN 900 - DN 1000 -
DN 1100 - DN 1200 -

At Rashmi Metaliks, we take pride in engineering Ductile Iron Pipes that set benchmarks in strength, durability, and performance. Backed by cutting-edge manufacturing, stringent quality standards, and a commitment to sustainability, our DI Pipes deliver reliable solutions for water and wastewater infrastructure worldwide.

Choose Rashmi Metaliks for:

  • Unmatched Product Quality
  • Global Compliance & Certifications
  • End-to-End Project Support

Explore our range or connect with our experts to find the perfect piping solution for your needs.