Manufacturer, Supplier & Exporter of Inconel 718 Spool

Inconel 718 Spool is a high-performance nickel-chromium alloy spool assembly designed for applications that demand superior strength, heat resistance, and corrosion stability. Known for its outstanding mechanical properties at temperatures ranging from cryogenic levels to around 700°C, Inconel 718 is widely used in demanding industrial environments. The combination of excellent tensile strength, fatigue resistance, creep resistance, and corrosion performance makes these spools an essential component in high-pressure piping networks, aerospace systems, and petrochemical operations. Their reliability and long-term durability make them a preferred choice for critical fluid handling and structural piping tasks..

Riddhi Siddhi Impex, a trusted and well-established manufacturer, fabricates Inconel 718 Spool assemblies with extreme precision and adherence to global quality standards. The company ensures that each spool meets the stringent requirements of ASTM, ASME, and other international guidelines. Using high-grade Inconel 718 alloy, advanced welding techniques, and accurate CNC machining, Riddhi Siddhi Impex produces spools that deliver exceptional performance in environments involving high temperature fluctuations, corrosive chemicals, and extreme mechanical stress. Their engineering expertise allows them to offer both standard and fully customized spool configurations.

As a leading supplier in India, Riddhi Siddhi Impex maintains an extensive inventory of Inconel 718 spool assemblies to support industries requiring quick, reliable, and consistent supply. They cater to a wide range of sectors including oil & gas, aerospace engineering, chemical processing, nuclear power generation, offshore equipment manufacturing, and high-temperature industrial furnaces. Their robust supply chain ensures timely delivery, material traceability, and complete documentation including MTCs, test certificates, and fabrication drawings..

The company has a strong domestic distribution network covering major cities across India such as Mumbai, Delhi, Bengaluru (Bangalore), Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, Nagpur, Indore, Bhopal, Jaipur, Kanpur, Lucknow, Agra, Varanasi, Amritsar, and Chandigarh. Industries in these cities rely on Riddhi Siddhi Impex for consistent and high-quality Inconel 718 spool supplies that meet complex engineering demands and project deadlines. Their presence in these metropolitan hubs ensures technical support, timely shipments, and access to ready stock..

In addition to Tier-1 cities, Riddhi Siddhi Impex also supplies Inconel 718 Spool assemblies to fast-developing industrial regions such as Mysuru (Mysore), Udaipur, Jodhpur, Visakhapatnam, Coimbatore, Madurai, Kochi, Thiruvananthapuram, Mangalore, Nashik, Kolhapur, Chandrapur, and Akola. These cities host significant engineering, petrochemical, and manufacturing activities where high-performance nickel-based spools are frequently required. The company's ability to supply both small-scale and large-volume orders gives them an edge in serving diverse industry segments..

Inconel 718 Spool

Specification

Product Name	Inconel 718 Spool
Manufacturer	Riddhi Siddhi Impex
Material Grade	Inconel Alloy 718 (UNS N07718)
Standards	ASTM B637, AMS 5662, AMS 5596
Forms	Welded Spool, Fabricated Spool, Custom Spool Assemblies
Size Range	1/2” NB to 24” NB (Custom Available)
Spool Length	Up to 12 meters or as per drawing
End Connections	BE, PE, Flanged Ends, Weld Ends
Applications	Aerospace, Oil & Gas, High-Temperature Piping, Chemical Plants

Chemical Composition

Element	Content (%)
Nickel (Ni)	50.0 – 55.0
Chromium (Cr)	17.0 – 21.0
Iron (Fe)	Balance
Niobium (Nb) + Tantalum (Ta)	4.75 – 5.50
Molybdenum (Mo)	2.80 – 3.30
Titanium (Ti)	0.65 – 1.15
Aluminium (Al)	0.20 – 0.80
Cobalt (Co)	1.0 Max
Carbon (C)	0.08 Max
Manganese (Mn)	0.35 Max
Silicon (Si)	0.35 Max

Mechanical Properties

Property	Value
Tensile Strength	≥ 1375 MPa
Yield Strength	≥ 1035 MPa
Elongation	12% – 20%
Hardness	≤ 40 HRC
Operating Temperature	-250°C to 705°C
Impact Strength	High (Excellent Toughness)

Dimension Chart (Typical Inconel 718 Spool)

Nominal Size (NB)	Outside Diameter (mm)	Wall Thickness (mm)	Length
1"	33.4	3.38	Up to 6 m
2"	60.3	4.78	Up to 6 m
4"	114.3	6.02	Up to 8 m
6"	168.3	7.11	Up to 10 m
10"	273.1	9.27	Up to 12 m
12"	323.9	9.53	Up to 12 m

Equivalent Grades

Standard	Equivalent Grade
UNS	N07718
Werkstoff Nr.	2.4668
AMS	5662, 5663, 5596
BS	NA 51

Equivalent Standards

Standard	Description
ASTM B637	Standard Specification for Precipitation-Hardened Alloy 718
AMS 5662 / 5663	High-Strength Heat-Treated Alloy Standards
ASME SB637	Boiler & Pressure Vessel Standard for Inconel 718

Other Types of Nickel Alloy Spools

Type	Description
Inconel 625 Spool	Excellent for high-corrosion and marine environments
Incoloy 800/800H Spool	High temperature structural stability
Monel 400 Spool	Superior resistance to seawater and alkalis
Hastelloy C276 Spool	Best suited for highly corrosive chemical plants

Western India, particularly Gujarat and Maharashtra, represents one of the strongest markets for Inconel 718 spool applications. Riddhi Siddhi Impex supplies regularly to industrial areas like Vilayat, Somnath, Dahej, Vadodara, Narmada, Surat, Ankleshwar, Navsari, Valsad, and Rajpipla, which are well-known hubs for petrochemical plants, refineries, chemical production units, and fabrication workshops. The harsh chemical environments and high-temperature process conditions in these regions make Inconel 718 the ideal material for spool assemblies..

Frequently Asked Questions (FAQs)

Q1: What is an Inconel 718 Spool used for?

A1: It is widely used in aerospace systems, gas turbines, oil & gas piping, and high-temperature chemical processing.

Q2: Do you provide custom fabrication for Inconel 718 Spools?

A2: Yes, Riddhi Siddhi Impex offers fully customized spools based on drawings, size requirements, and end connections.

Q3: Is Inconel 718 suitable for high-temperature service?

A3: Yes, Inconel 718 performs exceptionally well from cryogenic temperatures up to 705°C, maintaining strength and stability.

Q4: Are test certificates provided?

A4: Yes, MTCs as per EN 10204 3.1/3.2, NDT reports, and hydro test certificates are provided on request.