Incoloy 800HT Welded Pipe,Astm B358 Alloy 800HT Pipes, Incoloy 800HT Welded Pipe Suppliers India,Astm B358 Alloy 800HT Pipes Stockist
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Incoloy 800HT Welded

Incoloy 800HT Welded Pipe, Astm B358 Alloy 800HT Pipes ISO 9001 Trusted Supplier India

Incoloy 800HT Welded Pipe,Astm B358 Alloy 800HT Pipes

Incoloy 800HT Welded Pipe Suppliers India, Astm B358 Alloy 800HT Pipes ISO 9001 Trusted Supplier India, Specialist Astm B358 Welded Tube, check latest incoloy 800HT pipe price list india

The INCOLOY® 800 series of alloys, invented by the Special Metals Corporation Group of Companies, is the result of years of monitoring and maintaining the ultimate chemical properties for high-temperature strength and resistance to oxidation, carburization and other types of high-temperature corrosion. Each one a refinement of the one before, these alloys have set the industry standard in hightemperature applications requiring optimum creep and rupture properties. INCOLOY nickel-iron-chromium alloy 800 was introduced to the market in the 1950s to fill the need for a heat- and corrosion-resistant alloy with a relatively low nickel content since nickel was, at the time, designated a “strategic” metal. Over the past forty years it has been widely used for its strength at high temperatures and its ability to resist oxidation, carburization, and other types of high-temperature corrosion. Applications include furnace components and equipment, petrochemical furnace cracker tubes, pigtails and headers, and sheathing for electrical heating elements

Several other alloy manufacturers entered the alloy 800H (UNS N08810) market and additional creep and rupture data became available. Alloy 800H Property Council for ASME gathered this data and made a new analysis using parametric procedures, involving 87 heats and 1,052 data points. The additional data, from other manufacturers, included results with considerably lower strength, and the new analysis, which reflected the results of all the available data, resulted in a recommendation that the design stresses be revised. These revised values were lower for temperatures of 1100 through 1500°F (593-816°C), and about the same for 1600 and 1650°F (871 and 899°C).

Special Metals knew the importance of maintaining the aluminum and titanium contents in the upper portion of the specified material range. This resulted in higher creep and stress rupture properties than competitive alloy 800H. Therefore, to maintain higher allowable design stresses, the company introduced a variation of INCOLOY alloy 800H which is called INCOLOY alloy 800HT (UNS N08811). INCOLOY alloy 800HT has a restricted chemistry, within the limits of alloy 800H, and requires a heat treatment of 2100°F (1149°C) minimum. The carbon is 0.06 to 0.10% (alloy 800H is 0.05 to 0.10%), the Al + Ti is 0.85 to 1.20% (alloy 800H is 0.30 to 1.20% Al + Ti). The maximum allowable stresses for INCOLOY alloy 800HT (UNS N08811) are contained in ASME Code Case 1987 – latest revision.

The alloy meets all the requirements for UNS N08811 and N08810 (alloy 800H) and can be certified to either or both UNS numbers. It is important to note that INCOLOY alloy 800HT (UNS N08811) has higher maximum allowable design stresses than UNS N08810. Therefore, other materials produced to UNS N08810 (alloy 800H) cannot be certified as UNS N08811 unless they meet the additional requirements for this designation. INCOLOY alloy 800HT is the result of years of monitoring and maintaining the ultimate properties in this series of alloys by The Special Metals Corporation group of companies, the inventor of all the INCOLOY 800 series alloys.

Ref :

Alloy 800 nickel pipe is strong and resistant to oxidation and carburization at elevated temperatures. Resists sulfur attack, internal oxidation, scaling and corrosion in wide variety of atmospheres.

Types of Inconel Pipe Tube

ASTM B163 Inconel 600 Seamless Pipe ASTM B444 Inconel 625 Seamless Pipe
ASTM B166 Inconel 600 Seamless Tube ASTM B444 Inconel 625 Seamless Tube
ASTM B751 Inconel 600 Welded Pipe ASTM B704 Inconel 625 Welded Pipe
ASTM B775 Inconel 600 Welded Tube ASTM B705 / B751 Inconel 625 Welded Tube
ASTM B167 Inconel 601 Seamless Tube ASTM B407 Incoloy 800H Seamless Pipe
ASTM B751 Inconel 601 Welded Pipe ASTM B163 Incoloy 800H Seamless Tube
ASTM B775 Inconel 601 Welded Tube ASTM B358 Incoloy 800H Welded Pipe
ASTM B167 Inconel 601 Seamless Pipe ASTM B515 Incoloy 800H Welded Tube
ASTM B163 Incoloy 800 Seamless Tube ASTM B407 Incoloy 800HT Seamless Pipe
ASTM B358 Incoloy 800 Welded Pipe ASTM B163 Incoloy 800HT Seamless Tube
ASTM B407 Incoloy 800 Seamless Pipe ASTM B358 Incoloy 800HT Welded Pipe
ASTM B515 Incoloy 800 Welded Tube ASTM B515 Incoloy 800HT Welded Tube
ASTM B423 Incoloy 825 Seamless Tube ASTM B704 Incoloy 825 Welded Pipe
ASTM B163 Incoloy 825 Seamless Pipe ASTM B705 / B751 Incoloy 825 Welded Tube

Typical applications include heat exchangers, process piping ,carburizing fixtures and retorts, heating element sheathing, nuclear steam generator tubing and other components.

Stock Size Range:
OD: 1/2" through 6"
Wall: Schedule 40 through Schedule 80

Inconel 800, Incoloy 800: Has excellent tensile strength and resistance to oxidation as well as carburzation properties.

Inconel 800, Incoloy 800: AMS 5871, UNS N08800

Inconel Sheet, Inconel Plate Stock Size: Thickness: 0.010"~4.00", Standard Width & Length: 36" X 120" or 48" X 144", Cut to size availableOnline Inquiry Form

Inconel Tubing

Inconel 600: AMS 5580, ASTM-B-163, B-167, MIL-T-7840
Inconel 625: ASTM-B-444
Inconel 718: AMS 5589, AMS 5590
Inconel 800, Incoloy 800: ASTM-B-163, ASTM-B-407, ASTM-B-514
Inconel 825, Incoloy 825: ASTM-B-163, ASTM-B-423, UNS N08825
Inconel Tubing Stock Size: OD 1/16"~4", Wall: 0.010"~0.250", Length: 17'/24' FT R/L
Inconel Tubing Specifications: ASTM-B-163, ASME SB163, ASTM-B-165, ASME SB165, ASTM-B-167, ASME SB167, ASTM-B-444, ASME SB444

Inconel Pipe

Inconel 600: ASTM-B-167
Inconel 601: ASTM-B-167, Commercial Specification, Sch 160
Inconel 625: ASTM-B-444
Inconel 718: ASTM-A-312
Inconel 800, Incoloy 800: ASTM-B-514
Inconel Pipe Stock Size: 1/4" sch 10 to 16" sch 80 
Inconel Pipe Specifications: ASTM-B-163, ASME SB 163, ASTM-B-165, ASME SB165, ASTM-B-167, ASME SB167, ASTM-B-444, ASME SB444

Specifications: UNS N08367
ASME SB-688, ASME SA-240, ASME SB-675, ASME SA-312, ASME SB-676, ASME SA-249, ASME SB-691, ASME SA-479, ASME SB-462, ASME SA-182, ASME SB-564, ASME SB-366
ASTM B688, ASTM A240, ASTM B675, ASTM A312, ASTM B676, ASTM A249, ASTM B804, ASTM B691, ASTM A479, ASTM B462, ASTM A182, ASTM B564, ASTM B366, ASTM B472
NACE MR-0175

Types of Incoloy 800 Pipe/Tube

800 Incoloy EFW Tubing B163 Rectangular Seamless Pipes
Incoloy JIS SUS Cold Rolled Coiled Tubing 800 Incoloy Rectangular Tubes
ASME SB163 Incoloy 800 Tubing Incoloy 800 ERW Tubes
800 Austenitic Incoloy Pipes & Tubes UNS N08800 Incoloy Coiled Seamless Tubing
800 Incoloy LSAW Pipes Dealers Inconel Electric Resistance Welding Pipes
ASTM B358 Inconel Capillary Tube 800 Incoloy ASME SB515 Welded Tubing
Incoloy 800 U Shaped Tubing Inconel ASME SB407 Seamless Tubing
800 Incoloy Hydraulic Tubes Incoloy 800 Seamless Pipes
Top Quality Incoloy 800 Heat Ex-changer Tubes 800 Incoloy Seamless Tubing
Incoloy 800 DIN 1.4876 Round Tubing ASTM B515 Incoloy Welded Pipes
ASTM B515 Inconel Square Seamless Pipes B358 Incoloy Welded Tubes
ASME SB407 Incoloy Electric Fusion Welding Pipes ASTM B407 Incoloy 800 ERW Pipes
800 Inconel ASME SB358 Welded Tubes Inconel 800 Instrumentation Tubes
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Why us?

  • Astm B358 Incoloy 800 Seamless Pipe Manufacturer & Exporter more than 50 years.
  • The annual capacity of the plant equals about 12.000 tons
  • Specialized in Pipes & Tubes, Stainless Steel Pipe & Carbon Steel Pipe
  • We export Astm B358 Incoloy 800 Seamless Pipe everywhere in the world
  • We have our own warehouse of 10,000 feet, so we can offer Astm B358 Incoloy 800 Seamless Pipe best price in the market


  • Pipes up to 24" made in continuous production from coil
  • Pipes up to 80" made from single plates
  • Maximum thickness 40 mm


  • Contacts with major mills & stockists around the world.
  • Can offer ex-stock materials as well as mill delivery with nominal margins.
  • Complete in-house testing facilities viz. hydro, eddy current, UT, chemical analysis,
  • physical/mechanical, PMI, microscopic examination, etc…
  • Prime and genuine materials with co-relating original test certificates.


Standard Incoloy 800 / H / HT
Werkstoff Nr.


Chemical Composition

Incoloy 800 800H 800HT
Ni 30-35 30-35 30-35
Fe 39.5 min 39.5 min 39.5 min
Cr 19-23 19-23 19-23
Cu 0.75 max 0.75 max 0.75 max
Ti 0.15-0.60 0.15-0.60 0.25-0.60
Al 0.15-0.60 0.15-0.60 0.85-1.20
C 0.1 max 0.05-0.1 0.06-0.1
Mn 1.5 max 1.5 max 1.5 max
S 0.015 max 0.015 max 0.015 max
Si 1.0 max 1.0 max 1.0 max

Mechanical Properties

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 %

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