Incoloy 800 / 800H / 800HT Pipes & Tubes – Alloy 800 Seamless Pipe Manufacturer & Supplier

Introduction to Incoloy 800 Series Alloys

Incoloy 800 is a nickel-iron-chromium alloy available in three different forms and related forms (UNS N08800, Incoloy 800H, 800HT) that vary slightly in their composition. These superalloys are developed to give high strength and resist oxidation as well as carburization at high temperatures. The fundamental chemical composition is a high level of Nickel (30-35%), which gives the material resistance to chloride-ion stress-corrosion cracking, and Chromium (19-23%), which gives it resistance to oxidation.

The incoloy 800 pipes are normally applied where the temperature is up to 1100degF (593degC). Incoloy 800H and 800HT are preferred in application where the creep and rupture strength is needed above this temperature. These alloys find broad use in equipment by machines that require a high strength level and also have resistance to oxidation, carburization and other negative influences of high temperature exposures. We have all the three grades at Kalpataru piping so that we can have a chance to match the exact thermal needs of your project.

Key Differences: Incoloy 800 vs 800H vs 800HT

Although the foundation composition of Nickel, Chromium, and Iron is similar throughout the series, the decisive differences are in the carbon content and the supplementation of Titanium and Aluminum. Incoloy 800H pipe is an alloy 800 (0.05-0.10% Carbon) with a controlled amount of carbon, and a given grain size (ASTM No. 5 or finer) to maximize high temperature creep strength.

Incoloy 800HT is a step further. It has the same carbon range and grain size as 800H but must have the combined Titanium and Aluminum content of 0.85 to 1.20%. It is this specific chemistry which guarantees maximum high-temperature structural integrity. It is also worth mentioning that most current sources of 800H are in fact 800H/800HT certified since the chemistry of 800HT is within the range of 800H.

Alloy 800 Seamless Pipe vs Welded Pipe

Kalpataru Piping provides seamless and welded. Alloy 800 seamless pipe is produced through extrusion or rotary piercing, and then cold worked and annealed. Smooth pipes are typically used in critical high-pressure and high-temperature applications (such as superheater tubes) since there is no weld seam, which is considered to be a weakness in high-stress applications.

Welded pipes (ERW/EFW) are on the other hand manufactured using strip or plate. Recent manufacturing processes have rendered welded Incoloy 800H pipes highly dependable with a high degree of cost-effectiveness in large-diameter piping in low-pressure ducting or structural. We also have rigorous non-destructive testing of all welded pipes to make sure that the seams are intact.

ASTM B407 & ASME SB407 Specifications

Our manufacturing process strictly follows international standards. The primary specification for seamless pipe and tube is ASTM B407 (ASME SB407). Welded pipes typically follow ASTM B514 or B515.

Detailed Specifications for Incoloy 800 / 800H / 800HT Pipes & Tubes

a) Equivalent Grades (International Standards)

b) Chemical Composition (% Weight)

c) Mechanical Properties

Manufacturing Range & Dimensional Standards

Kalpataru Piping maintains a vast inventory to meet urgent project requirements. We can supply cut-to-length pipes or full random lengths based on your needs.

Incoloy 800 Seamless Pipes

• Size Range: 1/8″ NB to 24″ NB
• Standards: ASTM B407, ASME SB407
• Wall Thickness: SCH 10S, SCH 40S, SCH 80S, SCH 160, SCH XXS

Incoloy 800H Welded / ERW Tubes

• Size Range: 6″ NB to 100″ NB (EFW/Fabricated)
• Standards: ASTM B514, ASTM B515
• Finish: Annealed & Pickled, Bright Annealed, Polished

Various Types of Incoloy 800 / 800H / 800HT Pipes & Tubes

Kalpataru Piping offers a diverse range of pipe and tube configurations to meet specific application requirements. Each type is manufactured to exact tolerances using advanced production techniques.

Incoloy 800 / 800H / 800HT Pipe Weight Chart (Common Sizes)

The following chart provides theoretical weights for commonly ordered sizes. For precise calculations, please use our Pipe Weight Calculator.

Note: Weights are theoretical and based on nominal dimensions. Actual weights may vary by ±10% due to manufacturing tolerances. For heavy wall schedules (SCH 80, 160, XXS), please request detailed weight charts.

Applications & Industries Served

Incoloy 800HT pipes are essential in various heavy industries because of their capacity to withstand the high temperatures without breaking due to prolonged exposure to heat.

Quality Assurance & Testing

At Kalpataru Piping, quality is non-negotiable. Every Incoloy 800 pipe we supply undergoes a battery of tests to ensure compliance with ASTM B407. Our testing regime includes:

• Chemical Analysis: PMI (Positive Material Identification) to verify Nickel/Chromium content.
• Mechanical Testing: Tensile, Yield, and Elongation tests.
• NDT: Ultrasonic Testing (UT) and Hydrostatic Testing to ensure leak-proof performance.
• Grain Size Analysis: Specific checks for 800H/800HT to verify grain size (ASTM No. 5 or coarser).

We provide EN 10204 3.1 Mill Test Certificates (MTC) with every shipment. Third-party inspection (TPI) is also available upon request.

Export Destinations & Supply Chain

We are a leading exporter of Incoloy 800/800H/800HT Pipes & Tubes to over 40 countries. Our robust supply chain ensures timely delivery to major industrial hubs including:

Middle East: Saudi Arabia (Riyadh, Jubail), UAE (Dubai, Abu Dhabi), Qatar (Doha), Kuwait.
Asia: Singapore, Malaysia, Thailand, Indonesia.
Europe & Americas: Germany, UK, USA, Canada, Brazil.

We offer specialized packaging (wooden crates, plastic end caps) to prevent transit damage.

Frequently Asked Questions

Related Products

Cities We deliver

Bhopal, Lahore, Milan, Hyderabad, Pune, Vadodara, Pimpri-Chinchwad, Aberdeen, Howrah, Jeddah, Riyadh, Bogota, Petaling Jaya, Dallas, Lagos, Nagpur, Houston, Brisbane, Busan, Karachi, Coimbatore, Seoul, Caracas, Atyrau, Perth, Haryana, Bengaluru, Jaipur, Al Jubail, Kuwait City, Al Khobar, Sydney, Ranchi, Chiyoda, Noida, Chandigarh, Secunderabad, Ahvaz, Port-of-Spain, Singapore, Gurgaon, Rajkot, Rio de Janeiro, Abu Dhabi, Hong Kong, Surat, Sharjah, Hanoi, London, Muscat, Jakarta, Navi Mumbai, Istanbul, Kolkata, Cairo, Mumbai, Santiago, Montreal, Faridabad, Vung Tau, Bangkok, Ankara, Ahmedabad, Granada, Melbourne, Tehran, Visakhapatnam, New Delhi, Los Angeles, Ho Chi Minh City, Edmonton, La Victoria, Baroda, Thane, Nashik, Kuala Lumpur, Moscow, Ernakulam, Courbevoie, Calgary, Geoje-si, Indore, New York, Mexico City, Gimhae-si, Ludhiana, Kanpur, Ulsan, Thiruvananthapuram, Manama, Doha, Chennai, Madrid, Jamshedpur, Algiers, Dammam

Countries We Deliver

Iran, Venezuela, Saudi Arabia, Slovakia, Romania, Zimbabwe, Spain, Kazakhstan, Canada, Nigeria, Bulgaria, Afghanistan, Thailand, Bangladesh, Poland, United Kingdom, Bahrain, Jordan, Lithuania, Malaysia, France, Nigeria, Japan, Oman, Lebanon, Germany, Croatia, Australia, Puerto Rico, South Korea, Hungary, United States, Bhutan, Mexico, Mexico, Yemen, Singapore, New Zealand, Ecuador, Gabon, Qatar, Denmark, Iran, Netherlands, Norway, Sri Lanka, Belgium, Libya, Kuwait, Pakistan, Gambia, Sweden, Azerbaijan, Argentina, Chile, Ghana, United Arab Emirates, Finland, Nepal, Trinidad andamp; Tobago,Tunisia, Kenya, Peru, Austria, Russia, Ukraine, Italy, Belarus, Bolivia, Serbia, Poland, Mongolia, Turkey, Czech Republic, South Africa, Angola, India, Vietnam, Indonesia, Tibet, Ireland, Costa Rica, Greece, Colombia, Namibia, Iraq, Estonia, Israel, Macau, Philippines, Brazil, Switzerland, Algeria, Morocco, Chile, Portugal, Egypt, Taiwan, China, Hong Kong.