Manufacturer, Supplier & Exporter of Food Grade Epoxy Coated Pipes

Riddhi Siddhi Impex is a leading Indian manufacturer and supplier of high-quality metal products, including multi-layer thermal coated pipes. With established manufacturing units in Maharashtra and Gujarat, the company specializes in producing durable and technologically advanced piping solutions. Their expertise spans various industrial applications, allowing them to cater to sectors that require robust, heat-resistant, and corrosion-resistant piping solutions. As a trusted name in the industry, Riddhi Siddhi Impex emphasizes quality, innovation, and customer-centric service in all its operations..

Multi-layer thermal coated pipes are engineered with multiple protective layers to enhance performance and longevity. These pipes typically consist of a corrosion-resistant inner layer, a thermal insulation layer, and a protective outer coating. This multi-layer construction ensures that the pipes can withstand high temperatures, pressure variations, and chemical exposure while minimizing wear and maintenance requirements. Industries such as oil and gas, chemical processing, power generation, petrochemical, and HVAC rely on these pipes for efficient and safe operation.

Riddhi Siddhi Impex follows stringent manufacturing protocols to ensure the quality and durability of multi-layer thermal coated pipes. The process begins with high-grade raw materials such as stainless steel, duplex, or super-duplex alloys. Pipes undergo meticulous surface preparation, followed by the application of thermal coatings using advanced techniques. Every batch is subjected to rigorous quality control tests, including non-destructive testing (NDT), adhesion tests, and thermal cycling, to ensure compliance with industrial standards and long-term reliability...

The company offers a wide range of multi-layer thermal coated pipes in various diameters, wall thicknesses, and material grades to meet diverse project requirements. Riddhi Siddhi Impex provides custom solutions tailored to specific applications, whether it is large-diameter pipes for industrial plants, insulated piping for district heating, or corrosion-resistant tubes for chemical transport. This flexibility allows them to serve multiple industries and adapt to the unique needs of clients across India..

Riddhi Siddhi Impex has an extensive domestic supply network, enabling them to deliver multi-layer thermal coated pipes to almost every major Indian city. Their presence spans Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, Nagpur, 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, Navsari, Valsad, and Rajpipla. This wide reach ensures prompt delivery and on-time support for projects in both metro cities and industrial hubs.

Multi-Layer Thermal Coated Pipes

Specification

Product Name	Multi-Layer Thermal Coated Pipes
Manufacturer	Riddhi Siddhi Impex
Base Material	Carbon Steel / Stainless Steel / Alloy Steel (ASTM A106 / A53 / API 5L / EN 10216)
Coating Material	Thermal Coating – Multi-layer (Corrosion-resistant inner layer + Thermal insulation + Outer protective layer)
Standard	ISO 9001 / ISO 21809-1 / ASTM / API / DIN
Size Range	1/2” NB to 48” NB (Customizable)
Wall Thickness	Sch 20 to Sch 160 / XXS
Length	Single Random, Double Random, or Cut Lengths
Coating Thickness	1.5 mm to 5 mm (Customizable)
Pipe Ends	Plain End (PE), Beveled End (BE), or Threaded
Form	Seamless, Welded, ERW, or LSAW
Applications	Oil & Gas Pipelines, Chemical Transport, Power Plants, HVAC Systems, Water Supply, Marine Projects

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 Multi-Layer Thermal Coating)
Coating Adhesion	Strong Adhesion per ISO 21809-1

Dimension Chart (Nominal)

Nominal Pipe Size (NB)	Outside Diameter (mm)	Wall Thickness (mm)	Length
1/2"	21.3	2.77	Up to 12 m
1"	33.4	3.38	Up to 12 m
2"	60.3	3.91	Up to 12 m
4"	114.3	6.02	Up to 12 m
6"	168.3	7.11	Up to 12 m
10"	273.1	9.27	Up to 12 m
16"	406.4	12.70	Up to 12 m

Equivalent Grades

Standard	Grade
ASTM	A106 Grade B / A53 Grade B
API	5L Grade B / X42 / X52
EN	EN 10216 / EN 10224
DIN	St 37.2 / St 52.3
BS	3601 / 3602

Equivalent Standards

Standard	Description
ASTM A106 / A53	Standard Specification for Carbon Steel Pipe for High-Temperature and Pressure Service
API 5L	Specification for Line Pipe
ISO 21809-1	External Thermal Coatings for Pipelines
DIN 30678	Multi-layer Thermal Coating for Steel Pipes

Other Types of Coated Steel Pipes

Type	Description
3LPE Coated Pipes	Three-layer polyethylene coated pipes for enhanced corrosion protection
FBE Coated Pipes	Fusion Bonded Epoxy coated pipes for superior adhesion and corrosion resistance
Internal Epoxy Coated Pipes	Epoxy-coated internal surfaces for smooth fluid flow
PE Coated Pipes	Polyethylene-coated carbon steel pipes for underground applications

The multi-layer thermal coated pipes supplied by Riddhi Siddhi Impex find applications in numerous sectors. In power plants, they handle steam and condensate lines; in chemical and petrochemical plants, they transport corrosive fluids safely; in oil and gas, they are used in onshore and offshore pipelines; and in HVAC and building services, they provide insulated solutions for chilled water and heating systems. Their adaptability makes them suitable for a broad spectrum of industrial operations.

Frequently Asked Questions (FAQs)

Q1: What are the common applications of Multi-Layer Thermal Coated Pipes?

A1: These pipes are widely used in oil & gas pipelines, chemical transport, power plants, HVAC systems, water supply networks, and marine projects due to their corrosion resistance and thermal insulation.

Q2: Can these pipes be customized in size and coating thickness?

A2: Yes, Riddhi Siddhi Impex provides custom diameters, wall thicknesses, lengths, and coating thicknesses to suit specific industrial requirements.

Q3: What materials are used for the base of these pipes?

A3: The base materials include carbon steel, stainless steel, and alloy steel, complying with standards such as ASTM A106, A53, API 5L, and EN 10216.

Q4: What type of coating is applied to these pipes?

A4: Multi-layer thermal coatings consist of a corrosion-resistant inner layer, a thermal insulation layer, and an outer protective layer, offering excellent resistance against temperature and chemical exposure.

Q5: Are these pipes suitable for both underground and aboveground applications?

A5: Yes, the multi-layer thermal coated pipes are designed for both buried/submerged pipelines and aboveground installations, maintaining durability and performance under varied conditions.

Q6: What standards do these pipes comply with?

A6: They comply with ISO 21809-1, DIN 30678, ASTM, and API standards, ensuring international quality and safety for industrial applications.

Q7: Can Riddhi Siddhi Impex supply these pipes to multiple cities in India?

A7: Yes, they supply across major domestic cities including Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, Nagpur, Indore, Bhopal, Jaipur, Kanpur, Lucknow, and more.