Manufacturer, Supplier & Exporter of Incoloy 800H Spool

Incoloy 800H Spool is a high-performance nickel-iron-chromium alloy spool assembly engineered for applications that demand exceptional high-temperature strength, oxidation resistance, and metallurgical stability. The alloy is specifically designed with controlled carbon, aluminum, and titanium levels, making it ideal for operating temperatures ranging from 600°C to 1100°C. These enhanced metallurgical characteristics provide superior creep and rupture strength compared to standard Incoloy 800, which is why Incoloy 800H Spools are widely used in heat-intensive industrial systems..

Riddhi Siddhi Impex, a trusted and well-established manufacturer, specializes in producing high-quality Incoloy 800H Spools tailored to meet global engineering and metallurgical standards. With advanced fabrication facilities, precise welding techniques, and experienced engineering teams, the company ensures that every spool is manufactured with accuracy, durability, and reliability. Their spools are used in demanding environments such as petrochemical processing, furnaces, heaters, reformer tubes, and heat-treatment plants..

As a leading supplier in India, Riddhi Siddhi Impex maintains a large inventory of Incoloy 800H Spools to support urgent project requirements, shutdowns, and maintenance operations. The company supplies to industries ranging from power generation and refinery operations to chemical processing and high-temperature material handling. Their ability to supply custom spool assemblies—complete with flanges, bends, reducers, elbows, and welded sections—makes them a preferred source for complex piping solutions..

Riddhi Siddhi Impex caters to major Indian industrial hubs, supplying Incoloy 800H Spools to cities 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 regions rely heavily on high-temperature alloys for continuous processing operations, making Incoloy 800H Spools a critical component in their systems...

The company also extends its domestic supply capabilities to developing industrial regions like Mysuru (Mysore), Udaipur, Jodhpur, Visakhapatnam, Coimbatore, Madurai, Kochi, Thiruvananthapuram, Mangalore, Nashik, Kolhapur, Chandrapur, and Akola. These cities include industries such as petrochemical plants, furnace manufacturers, steel processing units, and energy facilities, all of which require heat-resistant spool assemblies for long-term operations..

Incoloy 800H Spool – Specification, Composition & Properties

Specification

Product Name	Incoloy 800H Spool
Manufacturer	Riddhi Siddhi Impex
Material Grade	Incoloy 800H (UNS N08810)
Standard	ASTM B564 / ASME SB564
Size Range	1/2” to 48” (Custom sizes on request)
Form	Pipe Spools, Welded Spools, Fabricated Spools
End Types	Beveled End, Plain End, Flanged End
Applications	Furnace Systems, Petrochemical Plants, Refineries, Heat Exchangers

Chemical Composition

Element	Content (%)
Nickel (Ni)	30.0 – 35.0
Chromium (Cr)	19.0 – 23.0
Iron (Fe)	Balance
Carbon (C)	0.05 – 0.10
Aluminum (Al)	0.15 – 0.60
Titanium (Ti)	0.15 – 0.60
Manganese (Mn)	1.5 Max
Silicon (Si)	1.0 Max
Sulfur (S)	0.015 Max

Mechanical Properties

Property	Value
Tensile Strength	≥ 450 MPa
Yield Strength	≥ 170 MPa
Elongation	≥ 30%
Hardness	≤ 85 HRB
Creep Resistance	Excellent at 600–1100°C

Dimension Chart (Typical)

Nominal Size (NB)	Outer Diameter (mm)	Wall Thickness (mm)	Spool Length
1"	33.4	3.38	Up to 6 m
2"	60.3	3.91	Up to 6 m
4"	114.3	6.02	Up to 6 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
UNS	N08810 / N08811
Werkstoff Nr.	1.4958 / 1.4959
EN	Alloy 800H/800HT
GOST	ЭИ670

Equivalent Standards

Standard	Description
ASTM B407	Specification for Nickel-Iron-Chromium Alloy Seamless Pipes
ASTM B564	Forged Fittings & Flanges
ASME SB407	Nickel-Iron-Alloy Seamless Pipe Standards
ASME SB564	Fittings & Forgings Standard

Other Types of Incoloy Spools

Type	Description
Incoloy 800 Spool	Standard alloy for moderate to high-temperature service
Incoloy 800HT Spool	High-strength version with improved creep resistance
Inconel 600 Spool	For oxidation and corrosion resistance
Inconel 625 Spool	High-strength spool with superior corrosion resistance

In Western India, especially Gujarat and Maharashtra, Incoloy 800H Spools are in high demand due to the concentration of refineries, chemical units, and heavy manufacturing plants. Riddhi Siddhi Impex supplies extensively to Vilayat, Somnath, Dahej, Vadodara, Narmada, Surat, Ankleshwar, Navsari, Valsad, and Rajpipla, ensuring consistent availability of high-temperature alloy spools. The company’s robust logistics network enables timely delivery, even to high-priority industrial zones.

Frequently Asked Questions (FAQs)

Q1: Where is Incoloy 800H Spool commonly used?

A1: It is mainly used in furnaces, petrochemical plants, chemical processing, and heat exchangers.

Q2: Do you provide custom spool fabrication?

A2: Yes, Riddhi Siddhi Impex manufactures custom-designed spools based on client drawings.

Q3: Is Incoloy 800H suitable for high-temperature service?

A3: Yes, the alloy offers excellent creep resistance and stability at 600–1100°C.

Q4: Do you supply Incoloy 800H Spools across India?

A4: Yes, supply is available in major Indian cities including Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, and more.