Incoloy 800H/800HT Tubes Supplier │ ASTM B163 UNS N08810 N08811 │ Creep Resistance

Solitaire Overseas is a reputable supplier and manufacturer of a quality assortment of Incoloy 800, 800H alloy, Incoloy 800HT and Inconel 800H seamless tubes. The company has established an unparalleled position through relentless efforts to meet buyers' needs by offering premium quality tubes. These products are designed and fabricated based on clients' specific requirements and are available in various standards, specifications, and grades to satisfy all demands. Buyers are provided with these high-quality products at reasonable rates.

Dual-certifiable alloy tubes, Incoloy 800, 800h and 800ht tubes are resistant to oxidation, carburization, and high temperature corrosion. Both of these alloys have the same composition as alloy 800 except for a higher carbon content of the alloys. Alloy 800HT has the addition of 1.0% of titanium and aluminum. Alloy 800h exhibits excellent rupture properties at temperatures above 600°C and remains ductile during long-term usage. This 800h material resists oxidizing, reducing, and nitriding environments and remains stable during prolonged high-temperature service. Both alloy 800h and 800ht are easily welded and processed through standard shop fabrication techniques. Incoloy material comes in different grades likes 800, 800H and 800HT is a nickel and chromium alloy known for its excellent resistance and high strength. Solitaire Overseas provides the high quality of Inconel Tubes Supplier & Exporter in different part of the world.

Incoloy 800/800H/800HT Tubes

Incoloy 800 Seamless Tubes, 800H Incoloy Alloy Seamless Tubing, 800HT Incoloy® Alloy ERW Tubes, Alloy N08800 Tubing, Alloy N08810 Welded Tubes, ASME B407 Incoloy 800 Seamless Tubes, Incoloy® 800H Welded Tubes Distributors, ASME SB515 Alloy 800HT Welded Tubing, JIS NCF 800/800H Seamless Tubing

Incoloy 800/800H/800HT Tubing

ASTM B407 Alloy 800H Seamless Tubing, Alloy 800HT ERW Tubing, DIN 1.4876 Tubes, Incoloy Alloy N08811 Seamless Tubes, 800H Incoloy® Round Tubes, WNR 1.4958 Tubing, Alloy 800HT Tubes, Incoloy 1.4859 Tubing, Nickel Alloy 800 Tubing Supplier in Mumbai, India.

Incoloy Alloy 800 800H 800HT Welded Tubes,</strong> use of high quality of alloy is preferred to add greater strength to the product. Also, the use of modern tools and sophisticated technology is given high importance to assure better fabrication. By keeping in mind national as well as international product quality standards the manufacturing of this grade tube is done to assure better production of tubes. Furthermore, the professional expert's team and quality control team is appointed looking at several stages of the production process to let the product maintain its quality.

There are many essential testing that takes place in the industry that is for quality check. The tests are hardness test, PMI/IGC test, mechanical/chemical test, flattening/flaring test, macro/micro test, pitting resistant test etc. The documents are also provided to the buyers including heat treatment chart, QAP, packaging list, guarantee letter, raw material test report, material traceability report etc.

What Is Incoloy 800/800H/800HT Tubes?
Specification of Incoloy 800/800H/800HT Tubes
Equivalent Grades
Chemical Composition
800 vs 800H vs 800HT Comparison
Mechanical & Physical Properties
Different Types
Size Chart
Tolerance Chart
OD & Wall Thickness Chart
Weight Chart
Related Products
Applications
Why Choose Solitaire Overseas
Frequently Asked Questions

What Is Incoloy 800/800H/800HT Tubes?

Nickel-Iron-Chromium alloys 800, 800H, and 800HT Tubes are high-strength, corrosion-resistant, and thermally stable materials designed for use in harsh environments. These tubes are mostly for use in areas of high temperatures and corrosive chemical applications like heat exchange systems, petrochemical processes, power plants and nuclear engineering. The base grade in this alloy series is Incoloy 800 Tubes, which are distinguished by their outstanding resistance to carburization and oxidation at high temperatures. Incoloy 800H Tubes are a modified tube that has increased carbon content and controlled grain size for improved creep resistance and are also commonly known as Incoloy 800H Tubing or Alloy 800H tube. This grade can be supplied in several forms, including seamless tube Incoloy 800H, which is ideal for high-temperature and high-stress conditions. Incoloy 800HT Tubes push the performance even higher by having tighter controls on the aluminum and titanium content, which increases resistance to stress rupture and thermal fatigue. All three variants deliver flexibility in harsh thermal environments providing engineers and fabricators with the choice of material for a given pressure, temperature and long-term durability need. Incoloy 800/800H/800HT Tubes are highly preferred for mission-critical piping systems in industries worldwide, due to their metallurgical stability, superior weldability and high-strength properties.

Specification of Incoloy 800/800H/800HT Tubes

Specification	Details
Specifications	ASTM B163, ASTM B407, ASTM B515 / ASME SB163, ASME SB407, ASME SB515
Dimensions	ASTM, ASME and API
Tubes Size	6 mm OD x 0.7 mm to 50.8 mm OD x 3 mm thk.
Schedule	SCH20, SCH30, SCH40, STD, SCH80, XS, SCH120, SCH140, SCH160, XXS
Type	Seamless / ERW / Welded / Fabricated / LSAW Tubes
Form	Round, Square, Rectangular, Hydraulic Etc.
Length	Single Random, Double Random & Cut Length.
End	Plain End, Beveled End, Threaded

Incoloy 800/800H/800HT Tubes Equivalent Grades

Standard	Werkstoff Nr.	UNS	JIS	BS	GOST	AFNOR	EN
Incoloy 800	1.4876	N08800	NCF 800	NA 15	EI670	Z8NC32-21	X10NiCrAlTi32-20
Incoloy 800H	1.4958 / 1.4876	N08810	NCF 800H	NA 15(H)	EI670	Z8NC33-21	X5NiCrAlTi31-20
Incoloy 800HT	1.4859 / 1.4876	N08811	NCF 800HT	NA 15(HT)	EI670	-	X8NiCrAlTi32-21

Alloy 800/800H/800HT Tubes Chemical Composition

Element	Alloy 800	Alloy 800H	Alloy 800HT
C	0.10 max	0.05 - 0.10	0.06 - 0.10
Mn	1.50 max	1.50 max	1.50 max
Si	1.00 max	1.00 max	1.00 max
S	0.015 max	0.015 max	0.015 max
Cu	0.75 max	0.75 max	0.75 max
Fe	39.50 min	39.50 min	39.50 min
Ni	30.00 - 35.00	30.00 - 35.00	30.00 - 35.00
Cr	19.00 - 23.00	19.00 - 23.00	19.00 - 23.00

Incoloy 800 vs 800H vs 800HT Tubes - Comparison Table

Incoloy 800, 800H, and 800HT Tubes are part of the same alloy family but are engineered with slight compositional and structural differences to suit varying levels of temperature, stress, and corrosion resistance.

Property	Incoloy 800	Incoloy 800H	Incoloy 800HT
UNS Number	N08800	N08810	N08811
Carbon Content	≤ 0.10%	0.05% - 0.10%	0.06% - 0.10%
Grain Size Control	Not specified	Controlled for improved creep strength	Controlled for maximum creep-rupture strength
Aluminum + Titanium Content	0.15% - 0.60% combined	Same as 800	0.85% - 1.20% combined
Maximum Service Temperature	Up to 1100°F (593°C)	Up to 1500°F (816°C)	Up to 1650°F (899°C)
Creep & Rupture Resistance	Good	Improved	Excellent
Applications	Heat exchangers, process piping	High-temperature reformers, heaters	Superheaters, industrial furnaces
ASTM Specification	B407 / B163 / B515	B407 / B163 / B515	B407 / B163 / B515

Incoloy Alloy 800/800H/800HT Tubes Mechanical & Physical Properties

Element	Incoloy Alloy 800/800H/800HT
Density	7.94 g/cm3
Melting Point	1385 °C (2525 °F)
Tensile Strength	Psi - 75,000, MPa - 520
Yield Strength (0.2% Offset)	Psi - 30,000, MPa - 205
Elongation	30%

Different Types of Incoloy Alloy 800/800H/800HT Tubes

UNS N08811 Seamless Tube

Nickel Alloy 800HT Coiled Tubing

Nickel 800HT Heat Exchanger Tube

N08810 Material

Inconel 800H Hydraulic Tubing

Incoloy Alloy 800H Round Tube

Incoloy 800HT Boiler Tube

Incoloy 800H Welded Tube

DIN 1.4959 Annealed Tube

Alloy 800H Condenser Tube

Size Chart of Incoloy Alloy 800H Round Tubes

NPS (inch)	Schedule (Sch)	OD (mm)	WT (mm)	Weight (Kg/m)
1/4	10S	13.72	1.65	0.50
1/4	40S	13.72	2.24	0.64
1/4	80S	13.72	3.02	0.81
3/8	10S	17.15	1.65	0.64
3/8	40S	17.15	2.31	0.86
3/8	80S	17.15	3.20	1.01
1/2	10S	21.34	2.11	1.00
1/2	40S	21.34	2.77	1.29
1/2	80S	21.34	3.73	1.65
3/4	10S	26.67	2.11	1.30
3/4	40S	26.67	2.87	1.71
3/4	80S	26.67	3.91	2.20
1	10S	33.40	2.77	2.09
1	40S	33.40	3.38	2.50
1	80S	33.40	4.55	3.24
1	160	33.40	6.35	4.24
2	40S	60.33	3.91	5.44
3	40S	88.90	5.49	11.29
4	40S	114.30	6.02	16.08
6	40S	168.28	7.11	28.26
8	40S	219.08	8.18	42.55

Tolerance Chart of Nickel 800HT Heat Exchanger Tubes

Outside Diameter (NPS)	Wall Thickness Range (in.)	Outside Diameter Tolerance (+/- in.)
1/2" - 1" incl.	0.0025 - 0.0065	0.0005
1/2" - 1" incl.	Over 0.0065 - 0.0134	0.0010
1" - 1-1/2" incl.	0.0025 - 0.0065	0.0008
1" - 1-1/2" incl.	Over 0.0065 - 0.0134	0.0010
1-1/2" - 2" incl.	0.0025 - 0.0049	0.0010
1-1/2" - 2" incl.	Over 0.0049 - 0.0083	0.0011
1-1/2" - 2" incl.	Over 0.0083 - 0.0148	0.0012
2" - 2-1/2" incl.	0.0032 - 0.0065	0.0012
2-1/2" - 3-1/2" incl.	0.0032 - 0.0165	0.0014
3-1/2" - 5" incl.	Over 0.0165 - 0.0220	0.0025

Inconel 800H Tube Outer Diameter & Wall Thickness Chart

Outer Diameter (OD) Inches	Outer Diameter (OD) mm	Wall Thickness Inches	Wall Thickness mm
1/4"	6.35	0.035	0.89
3/8"	9.53	0.035	0.89
1/2"	12.70	0.065	1.65
5/8"	15.88	0.065	1.65
3/4"	19.05	0.083	2.11
1"	25.40	0.083	2.11
1-1/4"	31.75	0.125	3.18
1-1/2"	38.10	0.125	3.18
2"	50.80	0.156	3.96
2-1/2"	63.50	0.188	4.78
3"	76.20	0.250	6.35

Weight Chart of Incoloy 800 Tubes

NPS (inch)	OD (inch)	OD (mm)	Schedule (Sch)	Wall Thk (inch)	Wall Thk (mm)	Weight (lb/ft)	Weight (kg/m)
1/2"	0.840	21	40 STD	0.109	2.769	0.851	1.268
3/4"	1.050	27	40 STD	0.113	2.870	1.131	1.684
1"	1.315	33	40 STD	0.133	3.378	1.679	2.501
1 1/4"	1.660	42	40 STD	0.140	3.556	2.273	3.385
1 1/2"	1.900	48	40 STD	0.145	3.683	2.718	4.048
2"	2.375	60	40 STD	0.154	3.912	3.653	5.441
2 1/2"	2.875	73	40 STD	0.203	5.516	5.793	8.629
3"	3.500	89	40 STD	0.216	5.486	7.576	11.284
4"	4.500	114	-	0.237	6.020	10.790	16.073
6"	6.625	168	-	0.188	4.775	12.924	19.252
8"	8.625	219	-	0.188	4.775	16.940	25.233
10"	10.750	273	-	0.188	4.775	21.207	31.588
12"	12.750	324	-	0.188	4.775	25.222	37.570
24"	24.000	610	40	0.688	17.475	171.293	255.148
48"	48.000	1219	STD	0.375	9.525	190.738	284.112

800/800H/800HT Incoloy Tube Application

Our Incoloy 800 series tubes are used in industries where high-temperature strength, oxidation resistance, and metallurgical stability are critical.

Heat exchangers and condensers
Petrochemical furnaces and heaters
Power plants and superheaters
Nuclear steam generators
Chemical processing systems
Oil and gas industry
Food processing and fabrication industry
Paper and pulp industry

Why Choose Solitaire Overseas For Incoloy 800 Tubes

Solitaire Overseas stands as a globally trusted manufacturer and supplier of Incoloy 800, 800H, and 800HT Tubes, offering unmatched quality, consistency, and reliability. With years of metallurgical expertise and a deep understanding of high-temperature alloy tubing, we deliver products that meet the most demanding industrial standards including ASTM B407, B163, and B515 for applications in heat exchangers, chemical processing, and power generation.

Our Incoloy 800 series tubes are precision-engineered to meet your exact specifications in terms of diameter, wall thickness, and tolerances. Each tube undergoes rigorous quality testing including hydrostatic, PMI, and ultrasonic inspections backed by certifications such as EN 10204 3.1/3.2. Choose us for consistent supply, export-grade finish, custom packaging, transparent documentation, and technical support every step of the way.

Frequently Asked Questions - Incoloy 800 / 800H / 800HT Tubes

What are the key applications of Inconel 800 series tubes?

Inconel 800, 800H, and 800HT tubes are used in high-temperature and corrosive environments like heat exchangers, petrochemical furnaces, power plants, nuclear steam generators, and chemical processing systems due to their excellent oxidation and carburization resistance.

What is the main difference between Inconel 800, 800H, and 800HT tubes?

The key differences lie in carbon content and stress rupture properties. Inconel 800H has higher carbon (0.05-0.10%) and improved high-temperature strength. 800HT features tighter controls on aluminum and titanium (0.85-1.20%) for enhanced creep and rupture resistance.

Are Inconel 800 tubes suitable for high-temperature environments?

Yes, Inconel 800 tubes are ideal for high-temperature environments. They maintain strength and resist oxidation, scaling, and carburization up to 1100°F (593°C), making them suitable for heat exchangers, furnaces, and superheaters in demanding industrial systems.

What ASTM standards apply to Inconel 800H and 800HT tubes?

Inconel 800H and 800HT tubes conform to ASTM B407 for seamless tubes and ASTM B514 for welded versions. These standards specify chemical composition, mechanical properties, and testing requirements to ensure high performance in critical thermal applications.

Can Inconel 800HT tubes be welded, and what methods are recommended?

Yes, Inconel 800HT tubes can be welded using standard welding methods like TIG, MIG, or resistance welding. It's important to use matching filler metals and controlled heat input to maintain corrosion resistance and prevent grain growth in heat-affected zones.

How does the chemical composition vary across Inconel 800, 800H, and 800HT tubes?

All three alloys have similar base elements: 30-35% nickel, 19-23% chromium, and iron as the balance. 800H includes higher carbon for creep strength, while 800HT adds precise aluminum and titanium (0.85-1.20%) for superior high-temperature stability and strength.