Manufacturer, Supplier & Exporter of API 5L X42 Spool

API 5L X42 Spool represents a high-performance steel piping component designed specifically for pipeline systems that demand excellent mechanical strength, good weldability, and long-term reliability. The “X42” grade under API 5L relates to its minimum yield strength, making it suitable for demanding oil & gas, water transport, and industrial fluid transmission systems. Riddhi Siddhi Impex, a leading steel fabrication company in India, manufactures these spools with best-in-class precision and quality control, establishing itself as a trusted API 5L X42 Spool domestic supplier..

At Riddhi Siddhi Impex’s manufacturing facilities, API 5L X42 Spools are fabricated from seamless and welded pipes using state-of-the-art CNC cutting, automatic welding systems, and robust quality assurance processes. The company offers various spool configurations—straight runs, elbows, tees, reducer spools, and custom-designed spool assemblies—all tested through hydrostatic pressure testing and non-destructive evaluation to ensure compliance with API and project-specific standards.

In industrially significant cities such as Mumbai, Delhi, and Bengaluru (Bangalore), Riddhi Siddhi Impex’s X42 spools are widely used for pipeline infrastructure projects, city gas distribution networks, and transmission lines. The company’s strong domestic presence ensures quick turnaround of spool orders, minimizing downtime in construction schedules and making it a go-to API 5L X42 Spool domestic supplier in these regions..

The southern and eastern Indian markets—including Hyderabad, Chennai, and Kolkata—also rely on Riddhi Siddhi Impex for supply of X42 spool assemblies. These spools are used in refinery lines, petrochemical plants, and cross‑country pipeline segments. The fabricator’s capability to deliver precisely welded, dimensionally accurate spool assemblies makes it a preferred choice among engineering contractors and EPC firms in these cities...

In the western and central industrial belts like Pune, Ahmedabad, Surat, Vadodara, Rajkot, Nagpur, Indore, and Bhopal, Riddhi Siddhi Impex caters to large‑scale infrastructure and pipeline construction projects. The API 5L X42 Spools supplied in these areas support long-distance pipeline transport of natural gas or water, as well as process piping in manufacturing units, thereby reducing reliance on imported spool assemblies..

API 5L X42 Spool

Specification

Product Name	API 5L X42 Spool
Manufacturer	Riddhi Siddhi Impex
Material	Carbon Steel (API 5L X42)
Form	Seamless / Welded
Size Range	1/2" NB to 48" NB
Wall Thickness	Sch 10 to XXS
Length	Single Random, Double Random, Cut Lengths
Applications	Oil & Gas, Water Transmission, Industrial Piping

Chemical Composition

Element	Content (%)
Carbon (C)	0.28 Max
Manganese (Mn)	0.80 – 1.20
Phosphorus (P)	0.030 Max
Sulfur (S)	0.030 Max
Silicon (Si)	0.10 – 0.35

Mechanical Properties

Property	Value
Minimum Yield Strength	42,000 psi (≈ 290 MPa)
Minimum Tensile Strength	60,000 – 72,000 psi (≈ 415 – 495 MPa)
Elongation	≥ 20%
Hardness	≤ 95 HRB

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
EN	EN 10216-1 / P235GH
DIN	St 35.8 / St 37.0

Equivalent Standards

Standard	Description
API 5L	Specification for Line Pipe
ASTM A106 / A53	Carbon Steel Pipe for High Temperature & Pressure Service
EN 10216	Seamless Steel Tubes for Pressure Purposes

Other Types

Type	Description
API 5L X46 / X52 / X60	Higher strength line pipe grades for pressure pipelines
Seamless Spool	Manufactured without welds for high-pressure applications
Welded Spool	ERW, SAW, or LSAW welded spools suitable for long pipelines

In key port‑based and industrial corridor regions such as Kochi, Thiruvananthapuram, Mangalore, and in the strategic petrochemical belts of Dahej, Vilayat, Somnath, Narmada, Ankleshwar, Navsari, Valsad, and Rajpipla, Riddhi Siddhi Impex’s API 5L X42 Spools are instrumental in pipeline projects for process industries, gas transport, and export-oriented pipelines. Their domestic manufacturing reduces lead time and logistical complexities, proving them to be a reliable domestic supplier..

Frequently Asked Questions (FAQs)

Q1: What are the primary applications of API 5L X42 Spool?

A1: Used in oil & gas pipelines, water transmission systems, chemical piping, and industrial process lines.

Q2: Can Riddhi Siddhi Impex provide custom spool lengths?

A2: Yes, we supply spools in single random, double random, and cut lengths as per project requirements.

Q3: Is API 5L X42 Spool suitable for high-pressure pipelines?

A3: Yes, X42 grade provides adequate yield and tensile strength for medium to high-pressure pipelines.

Q4: Which Indian cities can Riddhi Siddhi Impex supply API 5L X42 Spools to?

A4: Major cities include Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, Nagpur, and other industrial hubs.