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Alloy flanges and fittings

Incoloy 800, 800H & 800HT Flanges Manufacturer & Exporter

Name: Incoloy 800, 800H & 800HT Flanges
Brand: Raymond Tube Industries

This commercial route keeps Incoloy 800, 800H, and 800HT flange requirements technically separate. Specify UNS N08800, N08810, or N08811, the ASTM B564 condition, design and operating temperature, flange form, dimensions, class, facing, bore, heat treatment, inspection, certification, quantity, and destination rather than ordering a generic 800-series flange.

Technical snapshot

Key details for your specification.

Material identity

UNS N08800, N08810, or N08811 selected and certified separately

Material standard

ASTM B564 / ASME SB564 forging route for the ordered 800-series grade

Product definition

Flange dimensions, pressure class, facing, bore, and heat-treatment condition

Inspection

Grade-specific MTC, heat treatment, grain-size evidence where applicable, dimensions, and TPI

Controlled size architecture

Flange size and configuration matrix

NPS 1/2 through NPS 24 under ASME B16.5. Standard dimensions are shown for specification planning; availability, manufacturing route, and delivery are confirmed against the final RFQ specification.

Final RFQ confirmation

Class / schedule scope

Classes 150, 300, 400, 600, 900 and 1500. Class 2500 requires the applicable NPS and current governing table to be checked.

Facing / end scope

RF / RTJ as applicable

ASME B16.5 flanges nominal size and configuration guide
Nominal size	DN	Product	Standard	RFQ review
1/2"	DN 15	Flange	ASME B16.5	Final RFQ
3/4"	DN 20	Flange	ASME B16.5	Final RFQ
1"	DN 25	Flange	ASME B16.5	Final RFQ
1-1/4"	DN 32	Flange	ASME B16.5	Final RFQ
1-1/2"	DN 40	Flange	ASME B16.5	Final RFQ
2"	DN 50	Flange	ASME B16.5	Final RFQ
2-1/2"	DN 65	Flange	ASME B16.5	Final RFQ
3"	DN 80	Flange	ASME B16.5	Final RFQ
4"	DN 100	Flange	ASME B16.5	Final RFQ
5"	DN 125	Flange	ASME B16.5	Final RFQ
6"	DN 150	Flange	ASME B16.5	Final RFQ
8"	DN 200	Flange	ASME B16.5	Final RFQ
10"	DN 250	Flange	ASME B16.5	Final RFQ
12"	DN 300	Flange	ASME B16.5	Final RFQ
14"	DN 350	Flange	ASME B16.5	Final RFQ
16"	DN 400	Flange	ASME B16.5	Final RFQ
18"	DN 450	Flange	ASME B16.5	Final RFQ
20"	DN 500	Flange	ASME B16.5	Final RFQ
22"	DN 550	Flange	ASME B16.5	Final RFQ
24"	DN 600	Flange	ASME B16.5	Final RFQ

This table records nominal standard scope, not a promise that every type, class, facing, bore, or material combination is available.

Use the RFQ selector to state product form, NPS / DN, class or schedule, facing or end connection, testing, and documents for review.

Controlled size architecture

Flange size and configuration matrix

NPS 26 through NPS 60 under ASME B16.47. Standard dimensions are shown for specification planning; availability, manufacturing route, and delivery are confirmed against the final RFQ specification.

Final RFQ confirmation

Class / schedule scope

Series and class require technical review

Facing / end scope

Facing / drawing review

ASME B16.47 large-diameter flanges nominal size and configuration guide
Nominal size	DN	Product	Standard	RFQ review
26"	DN 650	Large-diameter flange	ASME B16.47	Final RFQ
28"	DN 700	Large-diameter flange	ASME B16.47	Final RFQ
30"	DN 750	Large-diameter flange	ASME B16.47	Final RFQ
32"	DN 800	Large-diameter flange	ASME B16.47	Final RFQ
34"	DN 850	Large-diameter flange	ASME B16.47	Final RFQ
36"	DN 900	Large-diameter flange	ASME B16.47	Final RFQ
38"	DN 950	Large-diameter flange	ASME B16.47	Final RFQ
40"	DN 1000	Large-diameter flange	ASME B16.47	Final RFQ
42"	DN 1050	Large-diameter flange	ASME B16.47	Final RFQ
44"	DN 1100	Large-diameter flange	ASME B16.47	Final RFQ
46"	DN 1150	Large-diameter flange	ASME B16.47	Final RFQ
48"	DN 1200	Large-diameter flange	ASME B16.47	Final RFQ
50"	DN 1250	Large-diameter flange	ASME B16.47	Final RFQ
52"	DN 1300	Large-diameter flange	ASME B16.47	Final RFQ
54"	DN 1350	Large-diameter flange	ASME B16.47	Final RFQ
56"	DN 1400	Large-diameter flange	ASME B16.47	Final RFQ
58"	DN 1450	Large-diameter flange	ASME B16.47	Final RFQ
60"	DN 1500	Large-diameter flange	ASME B16.47	Final RFQ

RTI large-diameter availability is not published. Use the technical quotation flow with the current dimensional standard and drawing.

Use the RFQ selector to state product form, NPS / DN, class or schedule, facing or end connection, testing, and documents for review.

Controlled size selector

Configure this alloy requirement.

Use the controlled NPS / DN conversion, then pass size, class or schedule, facing or end connection, and quantity to the RFQ.

Final RFQ confirmation

MaterialProductProduct typeSizePressure classSchedule / boreFacingQuantity

Selected requirement

Incoloy 800 | Weld Neck Flange | 6" / DN 150 | Class 600 | RTJ

ASME B16.5. Availability, manufacturing route, and delivery are confirmed against the final RFQ specification.

View technical details Request Technical Quotation

Engineering discussion

Context before component selection.

One series name contains three purchasing identities

UNS N08800, N08810, and N08811 belong to the Incoloy 800 series but have distinct chemistry, heat-treatment, grain-size, and high-temperature design contexts. A quotation should never collapse the requested grade into the words 800 series without written technical confirmation.

Temperature regime affects which grade is considered

The current ASTM B564 scope distinguishes N08800 from N08810 and N08811 in its high-temperature discussion. Final selection still follows the governing code, allowable stresses, creep and rupture criteria, operating cycles, atmosphere, fabrication, and project specification.

The MTC must prove more than a family name

Review the exact UNS designation, chemistry, heat treatment, mechanical results, grain-size evidence where required, heat number, dimensions, marking, and supplementary tests. The release dossier should make it impossible to confuse 800, 800H, and 800HT line items.

Standards and release

Define the basis, then document it.

ASTM B564 / ASME SB564

Current B564 scope lists N08800, N08810, and N08811. The order must name the exact UNS grade and its required heat-treatment and acceptance condition.

Grade selection

800, 800H, and 800HT are not interchangeable labels. Temperature regime, creep or rupture design basis, chemistry controls, grain size, and project code requirements influence selection.

Flange dimensions

State ASME or drawing basis, form, NPS, class, facing, bore, gasket, bolting, and pressure-temperature design criteria independently of the alloy family name.

Applications and next steps

Connect the requirement to the right workflow.

Petrochemical furnace piping reviews

Heat-treatment equipment connections

High-temperature process headers

Power and thermal-processing component enquiries

Nickel Alloy Flanges overviewReview the authoritative nickel alloy flanges product-family route.Nickel Alloy MaterialsCompare the Incoloy 800 series with other high-temperature grades.ASTM B564 GuideReview forging scope, grade identity, tests, and purchase controls.High-Temperature ApplicationsPrepare temperature, pressure, cycle, and atmosphere data.Request Technical QuotationSend the exact 800-series UNS grade and flange schedule.

Buyer questions

Frequently asked questions.

Are Incoloy 800, 800H, and 800HT the same grade?

No. They have separate UNS designations and grade-specific chemistry, heat-treatment, and high-temperature design considerations that must be stated in the order.

Does ASTM B564 include all three 800-series UNS grades?

The current scope lists N08800, N08810, and N08811. Confirm the active edition and specify the exact grade and condition required.

Can the grade be selected from temperature alone?

No. Design code, stress basis, time at temperature, creep and rupture criteria, atmosphere, pressure, fabrication, and project rules also require review.

What should be checked on an 800-series flange MTC?

Check the exact UNS grade, chemistry, heat treatment, mechanical results, grain size where required, heat traceability, dimensions, marking, and ordered supplementary tests.

Technical quotation

Turn this guidance into a controlled request.

Capture the material, product form, dimensions, standard, inspection, documentation, packing, and destination requirements for review.

Submit Technical RFQ Email Export Desk

Incoloy 800, 800H & 800HT Flanges Manufacturer & Exporter

Key details for your specification.

Flange size and configuration matrix

Flange size and configuration matrix

Configure this alloy requirement.

Context before component selection.

One series name contains three purchasing identities

Temperature regime affects which grade is considered

The MTC must prove more than a family name

Define the basis, then document it.

ASTM B564 / ASME SB564

Grade selection

Flange dimensions

Connect the requirement to the right workflow.

Frequently asked questions.

Turn this guidance into a controlled request.

Have a Technical Requirement?