Manufacturer, Supplier & Exporter of Cement Mortar Lined Pipes (CML)

Cement Mortar Lined Pipes (CML) are a widely used solution in water transmission and distribution systems, known for their excellent corrosion resistance, smooth internal surface, and long service life. These pipes consist of a steel or ductile iron base lined internally with a layer of cement mortar, which provides both mechanical protection and chemical stability. The cement mortar lining acts as a barrier that prevents the pipe metal from coming into contact with water or corrosive agents, thereby reducing internal corrosion and enhancing flow efficiency. This makes CML pipes ideal for use in potable water, irrigation, sewage, and industrial pipeline systems...

Riddhi Siddhi Impex is a leading manufacturer, exporter, and domestic supplier of Cement Mortar Lined Pipes (CML) in India. The company has built a strong reputation for delivering high-quality pipeline solutions that meet international standards such as IS, ASTM, and AWWA specifications. With state-of-the-art production facilities, Riddhi Siddhi Impex ensures precision in the cement lining process through controlled mixing, uniform coating, and curing methods that guarantee durability and adherence of the lining. Their CML pipes are designed to withstand high internal pressures, ensuring reliability in both underground and above-ground applications..

The manufacturing process of CML pipes by Riddhi Siddhi Impex involves multiple stages of inspection and quality control. After the steel pipe is fabricated, it is thoroughly cleaned to remove rust, scale, and oil residues. A cement-sand mortar mixture is then centrifugally applied to the internal surface of the pipe to form a dense, uniform lining. Once applied, the lining is cured under controlled humidity and temperature to achieve maximum hardness and bonding strength. This process results in a smooth interior surface that minimizes friction losses and maintains water purity over time..

One of the key advantages of Cement Mortar Lined Pipes supplied by Riddhi Siddhi Impex is their cost-effectiveness. Compared to other anti-corrosion coatings such as epoxy or polyethylene, cement mortar linings are more economical while still offering comparable performance in most water supply conditions. Moreover, CML pipes require minimal maintenance during their service life, reducing operational costs for municipal and industrial users. They are also environmentally friendly since the materials used—cement, sand, and water—are natural and non-toxic...

Riddhi Siddhi Impex caters to a wide domestic network across India, supplying Cement Mortar Lined Pipes to major cities such as Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, and Nagpur. The company also provides efficient supply and logistics support to industrial zones and municipal projects in Indore, Bhopal, Jaipur, Kanpur, Lucknow, Agra, Varanasi, Amritsar, Chandigarh, Mysuru, Udaipur, Jodhpur, Visakhapatnam, Coimbatore, Madurai, Kochi, Thiruvananthapuram, Mangalore, Nashik, Kolhapur, Chandrapur, Akola, Vilayat, Somnath, Dahej, Narmada, Ankleshwar, Navsari, Valsad, and Rajpipla. Their strong distribution network ensures prompt delivery and on-site support.

Cement Mortar Lined Pipes (CML)

Specification

Product Name	Cement Mortar Lined Pipes (CML)
Manufacturer	Riddhi Siddhi Impex
Base Material	Carbon Steel / Mild Steel / Ductile Iron
Lining Material	Cement Mortar (Portland Cement + Sand + Water Mixture)
Standard	IS 3589 / AWWA C205 / ASTM A53 / API 5L
Size Range	100 mm NB to 2600 mm NB
Wall Thickness	Sch 20 to Sch 160 / Custom
Length	Single Random, Double Random, or Custom Cut Lengths
Lining Thickness	3 mm to 25 mm (Depending on Diameter and Application)
Pipe Ends	Plain End (PE), Beveled End (BE), or Flanged
Form	Seamless, ERW, Spiral Welded (SAW/LSAW)
Applications	Water Transmission, Irrigation, Sewage, Cooling Water, and Industrial Pipelines

Chemical Composition (Base Carbon Steel)

Element	Content (%)
Carbon (C)	0.23 Max
Manganese (Mn)	0.30 – 1.06
Phosphorus (P)	0.05 Max
Sulfur (S)	0.045 Max
Silicon (Si)	0.10 – 0.35
Copper (Cu)	0.40 Max
Nickel (Ni)	0.40 Max
Chromium (Cr)	0.40 Max

Mechanical Properties

Property	Value
Tensile Strength	≥ 415 MPa
Yield Strength (0.2% offset)	≥ 240 MPa
Elongation	≥ 20%
Hardness	≤ 95 HRB
Impact Resistance	Excellent (Due to Cement Mortar Lining)
Lining Adhesion	Strong Bond per AWWA C205

Dimension Chart (Nominal)

Nominal Pipe Size (NB)	Outside Diameter (mm)	Lining Thickness (mm)	Length
100	114.3	3 – 5	Up to 12 m
200	219.1	5 – 8	Up to 12 m
300	323.9	6 – 10	Up to 12 m
500	508.0	8 – 12	Up to 12 m
800	813.0	10 – 15	Up to 12 m
1000	1016.0	12 – 20	Up to 12 m
1600	1626.0	15 – 25	Up to 12 m

Equivalent Grades

Standard	Grade
ASTM	A106 Grade B / A53 Grade B
API	5L Grade B / X42 / X52
EN	EN 10224 / EN 10217
DIN	St 37.0 / St 52.3
IS	IS 3589 / IS 1239

Equivalent Standards

Standard	Description
AWWA C205	Standard for Cement–Mortar Protective Lining and Coating for Steel Water Pipe
IS 3589	Steel Pipes for Water and Sewage
ASTM A53 / A106	Carbon Steel Pipe for High-Temperature and Pressure Service
API 5L	Specification for Line Pipe

Other Types of Lined and Coated Steel Pipes

Type	Description
Epoxy Coated Pipes	Internal epoxy coating for enhanced flow and corrosion protection
3LPE Coated Pipes	Three-layer polyethylene coated pipes for underground corrosion resistance
FBE Coated Pipes	Fusion bonded epoxy coated pipes for chemical and water industries
Bitumen Coated Pipes	External bitumen coating for soil and moisture resistance

In these cities, Riddhi Siddhi Impex has become a trusted name for infrastructure projects, municipal water boards, and private contractors. Their CML pipes are extensively used in water transmission pipelines, cooling water systems in power plants, desalination projects, and wastewater treatment facilities. The combination of high mechanical strength, durability, and ease of installation has made their products a preferred choice for engineers and project planners nationwide..

Q1: What are Cement Mortar Lined Pipes (CML)?

A1: Cement Mortar Lined Pipes (CML) are steel or ductile iron pipes internally lined with a layer of cement mortar to prevent corrosion, improve water flow, and enhance durability in water and wastewater systems.

Q2: What are the main applications of Cement Mortar Lined Pipes?

A2: CML pipes are commonly used in potable water supply systems, irrigation networks, sewage lines, industrial water transportation, desalination plants, and cooling water systems in power and chemical industries.

Q3: What are the advantages of using Cement Mortar Lined Pipes?

A3: The key benefits include superior corrosion resistance, low maintenance, long service life, smooth internal surface for better flow efficiency, and cost-effectiveness compared to other lining methods.

Q4: Does Riddhi Siddhi Impex supply Cement Mortar Lined Pipes across India?

A4: Yes, Riddhi Siddhi Impex is a leading domestic supplier providing CML pipes to major cities such as Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Jaipur, and many more across India.

Q5: Can Riddhi Siddhi Impex provide custom sizes and specifications for CML pipes?

A5: Absolutely. We offer customized dimensions, thicknesses, and cement mortar grades based on specific project and client requirements, ensuring compliance with IS, ASTM, and AWWA standards.

Q6: How are Cement Mortar Lined Pipes manufactured?

A6: The manufacturing process involves cleaning the steel pipe surface, centrifugally applying a cement-sand mortar mixture, and curing it under controlled conditions to achieve a dense, durable, and well-adhered lining.

Q7: Are CML pipes suitable for corrosive or saline water environments?

A7: Yes, CML pipes perform well in mildly to moderately corrosive and saline environments due to the cement lining’s protective nature, though additional coatings can be applied for highly aggressive conditions.

Q8: What quality standards does Riddhi Siddhi Impex follow for CML pipes?

A8: Riddhi Siddhi Impex adheres to international and Indian standards such as IS 3589, ASTM A53/A106, and AWWA C205, ensuring high-quality, durable, and tested products for every application.

Q9: Why choose Riddhi Siddhi Impex as your Cement Mortar Lined Pipe supplier?

A9: With years of industry experience, advanced manufacturing facilities, and a robust distribution network, Riddhi Siddhi Impex guarantees high-quality CML pipes, timely delivery, and exceptional customer support across India.