Manufacturer, Supplier & Exporter of API 5L X70 Spool

API 5L X70 Spool refers to prefabricated segments of high-strength API 5L X70 line pipe that are manufactured, cut, beveled, and prepared for installation in pipelines transporting oil, gas, water, and petrochemical fluids. Due to their superior yield strength of approximately 70,000 psi, API 5L X70 spools are widely used in high-pressure and long-distance transmission projects. These spools are produced from carbon-manganese steel with controlled microstructure to ensure high toughness, weldability, corrosion resistance, and low-temperature performance. As pipeline projects continue to expand across India’s energy, petrochemical, and refinery sectors, the demand for ready-to-install X70 spools has grown significantly...

Riddhi Siddhi Impex is one of India’s leading manufacturers, stockists, and suppliers of API 5L X70 spools, offering both PSL-1 and PSL-2 categories depending on project specifications. The company specializes in providing seamless, ERW, LSAW, SSAW, and custom-fabricated spools that meet strict dimensional tolerances and testing requirements. Their manufacturing capability includes spool fabrication with precise welding, NDT inspection, hydrotesting, coating, and end-prep services, ensuring that each API 5L X70 spool is delivered ready for installation. With a reputation for consistent quality, timely delivery, and international-grade packaging standards, Riddhi Siddhi Impex has earned its position as a trusted supplier in the Indian domestic market..

One of the strongest advantages of API 5L X70 Spools supplied by Riddhi Siddhi Impex is the availability of multiple protective coatings such as 3LPE, 3LPP, FBE, galvanized, black-painted, and anti-rust varnish options. These coatings significantly enhance the pipe’s resistance to corrosion, moisture, soil chemicals, and offshore environmental exposure. Their production team ensures strict adherence to API 5L quality norms such as hydrostatic testing, ultrasonic testing, radiography, chemical composition verification, and mechanical property evaluation. Because of their high performance, API 5L X70 spools are preferred for cross-country pipelines, refineries, petrochemical plants, fertilizer units, offshore platforms, and water distribution systems...

Riddhi Siddhi Impex has established itself not only as a manufacturer but also as a leading API 5L X70 spool domestic supplier across major Indian industrial hubs. Their extensive inventory in Mumbai allows them to dispatch X70 spools to project sites with minimal lead time. They cater to orders ranging from small quantities to large turnkey pipeline packages. Their expertise in handling bulk orders with mill test certificates (EN 10204 3.1), third-party inspections, and customized spool fabrication makes them a preferred partner for engineering contractors and EPC companies across the country...

In Western India, Riddhi Siddhi Impex supplies API 5L X70 spools to major industrial cities such as Mumbai, Pune, Ahmedabad, Surat, Vadodara, Rajkot, Nashik, Kolhapur, Ankleshwar, Dahej, Vapi, Navsari, Valsad, Vilayat, Narmada, Bharuch, and Somnath. These regions host numerous pipeline, chemical, and refinery projects, making them high-demand markets. Due to proximity to ports and manufacturing clusters, the company can offer competitive pricing and faster delivery schedules. Their strong logistics network ensures seamless supply to refineries, oil terminals, steel plants, chemical complexes, and natural gas distribution networks located across Gujarat and Maharashtra..

PP Coated Carbon Steel Pipes

Specification

Product Name	PP Coated Carbon Steel Pipes
Manufacturer	Riddhi Siddhi Impex
Base Material	Carbon Steel (ASTM A106 / A53 / API 5L)
Coating Material	Polypropylene (PP) – Single Layer or 3-Layer (3LPP)
Standard	ISO 21809-1 / DIN 30678 / ASTM / API
Size Range	1/2” NB to 48” NB
Wall Thickness	Sch 20 to Sch 160 / XXS
Length	Single Random, Double Random, or Custom Cut Lengths
Coating Thickness	1.8 mm to 4.5 mm (Customizable)
Pipe Ends	Plain End (PE), Beveled End (BE), or Threaded
Form	Seamless, Welded, ERW, or LSAW
Applications	Oil & Gas Pipelines, Water Supply, Chemical Transport, 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 (Enhanced by PP 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	Carbon Steel Pipe for High-Temperature & Pressure Service
API 5L	Specification for Line Pipe
ISO 21809-1	External PP Coatings for Buried/Submerged Pipelines
DIN 30678	3-Layer Polypropylene Coating for Steel Pipes

Other Types of Coated Steel Pipes

Type	Description
3LPE Coated Pipes	Three-layer polyethylene coated pipes for improved corrosion resistance
FBE Coated Pipes	Fusion-bonded epoxy coated pipes with exceptional adhesion and corrosion protection
Internal Epoxy Coated Pipes	Internal epoxy coating for enhanced flow and corrosion protection
PE Coated Pipes	Polyethylene-coated pipes suitable for underground & water pipeline applications

Northern and Central India are also major destinations for Riddhi Siddhi Impex’s API 5L X70 spools. They regularly supply to Delhi, Jaipur, Kanpur, Lucknow, Agra, Amritsar, Chandigarh, Bhopal, Indore, Nagpur, and Jodhpur, supporting multiple city-gas distribution (CGD) networks and industrial pipeline projects. With increasing development of gas grids, fertilizer corridors, and petrochemical expansions in the region, API 5L X70 spools have become essential for high-pressure applications. Riddhi Siddhi Impex’s established stock points and reliable transportation partners play a key role in serving clients across these geographies.

Frequently Asked Questions (FAQs)

Q1: What are the common applications of API 5L X70 Spool?

A1: API 5L X70 Spools are widely used in oil and gas transmission pipelines, petrochemical plants, refinery piping, offshore platforms, water supply networks, and high-pressure industrial pipelines.

Q2: Do you provide custom spool fabrication?

A2: Yes, we offer customized API 5L X70 spool fabrication including custom lengths, diameters, beveling, welding, coating, and project-specific dimensions as per client requirements.

Q3: What testing is performed on API 5L X70 Spool?

A3: Each spool undergoes hydrostatic testing, ultrasonic testing, radiography, chemical analysis, mechanical property testing, and other inspections as per API 5L PSL1/PSL2 standards.

Q4: Are coatings available for API 5L X70 Spool?

A4: Yes, we provide several coating options including 3LPE, 3LPP, FBE coating, black painting, anti-corrosion varnish, and customized coatings based on project specifications.

Q5: Do you supply API 5L X70 Spool across India?

A5: Yes, we supply API 5L X70 Spools to all major Indian cities including Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, Indore, Jaipur, Lucknow, and many more industrial locations.