Metal Udyog India

Ductile Iron Pipes

Class of Pipe

C20, C30, C25, C40, C50, C64, C 100 & Class K7, K9 & K12


Electro Therm
Tata Metaliks


Metal Udyog (India) is a pioneer supplier and stockist of Ductile Iron Pipes.  By treating the molten low-sulphur base iron with magnesium under closely regulated conditions, ductile iron is made. The surprising shift in the metal is marked by the spheroidal or nodular deposition of free graphite in ductile iron, leading to optimum continuity of the metal matrix, creating a stronger and tougher ductile substance with high ductility and heavy effects. When it’s built, it takes relatively little maintenance and is planned to last at least 100 years.

In addition to high longevity and efficiency, Ductile Iron (DI) Pipes have strong mechanical properties that make them suitable for high-pressure requirements. In networks carrying potable water, waste water, drainage water and pressure waste, Ductile Iron Pipes are used extensively. The spheroidal form of its graphite owes its extraordinary mechanical properties to Ductile Iron: fracture toughness, high elastic limit, structural rigidity, strong elongation. By regulating the chemical analysis and hot pressing of the metal matrix, these properties are further improved.

The Ductile Iron Pipes provided by Metal Udyog (India) cover a range of measurements from DN 80 to DN 2200, with a normal length of 5.5 metres to 6 metres. The product complies with the ISO: 9001 and ISO: 14001 certified Indian Standard IS: 8329 and International Standards ISO: 2531 and BSEN 545 and BSEN 598, allowing the organisation to appeal to national and export markets.

Ductile Iron Pipe is itself a 100% recyclable material, having as much as 98 percent recycled content. During the life of the pipe in operation, reduced costs from increased flow capacity contribute to substantial energy savings. Money saves Ductile Iron. From high-pressure applications, to heavy ground and traffic loads, to unstable soil environments, it is strong enough to survive the most extreme conditions. The conventional qualities of cast iron, arising from the large concentration of carbon, are preserved by ductile iron: casting power, abrasion resistance, machinability, compression strength, fatigue strength. Elasticity, impact strength, elongation, etc. are some impressive mechanical properties of ductile iron pipes. We at Metal Udyog (India) make sure to deliver quality services at affordable and value for money prices.

Ductile Iron Pipes at a Glance


  • Ductile Iron Pipes are formed using ductile cast iron commonly used for water transportation.
  • It has an estimated lifespan of over 100 years.
  • Its size ranges from DN 80mm to DN 2200mm.
  • Standard length in meters is 5.5 or 6.0 of the provided pipes.
  • Metal Udyog (India) supplied Ductile Iron Pipes are immune to internal corrosion in potable water and less aggressive forms of sewage.
  • It is environmentally friendly and is normally developed from recycled material including scrap steel and recycled iron.
  • It possesses high ductility with very little maintenance.
Ductile Iron Pipe for Water and Other Liquids
4" through 64"
ANSI/AWWA C150/A21.50
ANSI/AWWA C151/A21.51

Ductile Iron Gravity Sewer Pipe
4" through 64"

Ductile Iron Culvert Pipe
14" through 64"

Ductile and Gray Iron Fittings for Water and Other Liquids
4" through 48"

Coatings and Linings
ANSI/AWWA C110/A21.10
ANSI/AWWA C115/A21.15
ANSI/AWWA C151/A21.51
ANSI/AWWA C153/A21.53
Cement Lining
ANSI/AWWA C104/A21.4
Fusion-Bonded Epoxy
ANSI/AWWA C116/A21.16
Ceramic Epoxy Lining
ASTM A716/A746
Coal Tar Epoxy Lining
Polyethylene Encasement
ANSI/AWWA C105/A21.5

Properties of Ductile Iron Pipes

Ductile Iron Pipes
Tensile Strength
Min. 420 MPa
Elongation at Break
10% Max.
230 BHN
Elastic Co-efficient
1.7 x 104 Kg/mm2
7050 Kg/m2
Bending Strength
Over 50 Kg/m3
Yield Strength
300 MPa

Tolerances for iron thickness

Type of piece
Nominal wall thickness
Tolerance in mm
Spun pipes
class 40
and class 30
≤ 5.0
– 1.3
> 5.0
– (1.3 + 0.001 DN)
Spun pipes
class K
≤ 6.0
– 1.3
> 6.0
– (1.3 + 0.001 DN)
≤ 7.0
– 2.3
> 7.0
– (2.3 + 0.001 DN)


Specification:ASTM A377 Ductile Iron, AASHTO M64 Cast Iron Culvert Pipe
Main Products:Di, Dci, Pipe, Ductile Cast Iron Pipe, Dci Pipe, Di Pipe
Brand:Jindal, Srikalahasthi, Electro Therm, Tata Metaliks, Rashmi
Material:Ductile Iron GGG 50
Standard:ISO2531, EN545, EN598
Class of Pipe:C20, C30, C25, C40, C50, C64, C 100 & Class K7, K9 & K12
Standard Sizes:DN 80 mm to DN 2000 mm (including DN 125 & DN 750)
External Coating:Red / Blue Epoxy or Black Bitumen, Zn & Zn-AI Coatings, Metallic Zinc (130 gm/m2 or 200 gm/m2 or 400 gm/m2 as per the customer’s requirements) complying to relevant ISO, IS, BS EN standards with a finishing layer of Epoxy Coating / Black Bitumen(minimum thickness 70 micron) as per the customer’s requirements.
Available joint method:T type; Mechanical joint k type; Self-anchor
Internal Coating:Cement Lining of OPC/ SRC/ BFSC/ HAC Cement mortar lining as per requirement with ordinary Portland Cement and Sulphate Resisting Cement conforming to relevant IS, ISO, BS EN standards.
Application:Ductile cast iron Pipe are mainly used for transferring waste water, drinkable water and for irrigation.
Coating:Metallic zinc spray with Bituminous Coating (Outside) Cement mortar lining (Inside).

Industries We Serve

Metal Udyog India