Manufacturer, Supplier & Exporter of API 5L X65 Spool

API 5L X65 is a high-strength carbon steel grade used extensively in pipeline applications. When supplied as a spool, it refers to a pre-fabricated pipeline segment that includes pipe, fittings, and welded joints, ready for installation. Spools simplify field assembly, reduce on-site welding, and ensure quality-controlled fabrication. X65 grade offers a minimum yield strength of 450 MPa, making it suitable for medium- to high-pressure pipelines such as oil and gas transmission, industrial fluid transport, and infrastructure projects..

While API 5L X65 line pipes are produced by several Indian manufacturers, such as Piyush Steel, Trident Steel, Kanak Metal & Alloys, Rexal Tubes, and Multi Metals India, Riddhi Siddhi Impex primarily acts as a supplier or distributor rather than a manufacturer of X65 spools. They have an established presence in metals trading and can source these spools through their network of trusted manufacturers. Buyers should confirm supply capacity and documentation before placing an order.

API 5L X65 spools can be delivered across India due to a well-established network of suppliers. Major metropolitan and industrial cities such as Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, Nagpur, Indore, Bhopal, Jaipur, Kanpur, and Lucknow are frequently served. Regional and emerging industrial hubs like Agra, Varanasi, Amritsar, Chandigarh, Mysuru, Udaipur, Jodhpur, Visakhapatnam, Coimbatore, Madurai, Kochi, Thiruvananthapuram, and Mangalore also receive deliveries from leading distributors..

X65 spools offer a superior strength-to-weight ratio compared to lower-grade pipes, enabling thinner walls while maintaining pressure capacity. This reduces material cost and overall pipeline weight. Spools fabricated from X65 steel ensure higher durability, better stress handling, and consistent mechanical properties. The prefabricated nature of spools allows for complex configurations and reduces field welding, enhancing safety and installation speed..

API 5L X65 spools are widely used in oil and gas pipelines, petrochemical plants, chemical transport systems, water pipelines, and industrial infrastructure. They are particularly suitable for high-pressure systems where structural integrity is critical. Industrial EPC (Engineering, Procurement, and Construction) projects prefer X65 spools for their efficiency, reduced field installation time, and lower risk of weld defects in high-stress applications..

API 5L X65 Spool

Specification

Product Name	API 5L X65 Spool
Manufacturer / Supplier	Riddhi Siddhi Impex
Base Material	Carbon Steel
Grade	X65
Standard	API 5L / ASTM / EN / DIN
Size Range	1/2” NB to 48” NB
Wall Thickness	Sch 20 to Sch 160 / XXS
Length	Single Random, Double Random, Cut Lengths
Form	Seamless, ERW, LSAW, Spiral Welded
Applications	Oil & Gas Pipelines, Water Transport, Chemical & Petrochemical Industries

Chemical Composition (X65 Carbon Steel)

Element	Content (%)
Carbon (C)	0.12 – 0.28
Manganese (Mn)	0.60 – 1.40
Phosphorus (P)	≤ 0.03
Sulfur (S)	≤ 0.03
Silicon (Si)	0.15 – 0.45
Nickel (Ni)	≤ 0.40
Chromium (Cr)	≤ 0.30

Mechanical Properties

Property	Value
Yield Strength	≥ 450 MPa
Tensile Strength	485 – 620 MPa
Elongation	≥ 20%
Hardness	≤ 248 HB
Impact Resistance	High, suitable for high-pressure pipelines

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	Equivalent Grade
API	5L X65
ASTM	A106 Gr. B / A333 Gr. 6
EN	EN 10208-2 L450
DIN	St 52-3

Equivalent Standards

Standard	Description
API 5L	Specification for Line Pipe
ASTM A106 / A333	Carbon Steel Pipe for High-Temperature and Pressure Service
EN 10208-2	Steel Pipes for Pipelines

Other Types of Steel Pipes

Type	Description
API 5L X52	Medium strength pipeline pipe for moderate pressure applications
API 5L X70	High-strength pipeline pipe for high-pressure systems
3LPE Coated Pipes	Polyethylene-coated pipes for corrosion protection
FBE Coated Pipes	Fusion bonded epoxy coating for external corrosion resistance

The demand for API 5L X65 spools in India is increasing due to expanding oil, gas, and water infrastructure projects. Suppliers actively cater to both PSL1 and PSL2 grades, providing both seamless and welded options. Established distributors like Trident Steel and Piyush Steel have nationwide delivery capabilities, making X65 spools accessible to multiple industrial cities. This ensures timely procurement for large-scale projects and reduces downtime.

Frequently Asked Questions (FAQs)

Q1: What are the common applications of API 5L X65 Spool?

A1: It is widely used in oil & gas pipelines, water transport systems, chemical industries, and industrial pipelines.

Q2: Can I order custom lengths and diameters?

A2: Yes, Riddhi Siddhi Impex supplies custom-length spools based on project requirements.

Q3: Is API 5L X65 suitable for high-pressure pipelines?

A3: Yes, X65 grade has high yield strength (≥ 450 MPa) suitable for medium- to high-pressure pipelines.

Q4: Which cities in India are supplied by Riddhi Siddhi Impex?

A4: Major cities include Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, and more across India.