Global Steel Supply & Processing
UNS N08810 | ASTM B409-22 | HIGH-TEMPERATURE ALLOY PLATE
HIGH-TEMPERATURE EQUIPMENT MATERIAL
Source UNS N08810 plate to your fabrication drawings, heat-treatment condition and material certificate requirements. Send your dimensions, quantity and destination for an order-specific factory quotation.
View ASTM B409 plate specifications ↓
Confirm the UNS grade, annealing condition, plate dimensions and grain-size documentation required by your project.
| Commercial alloy | Incoloy 800H / Alloy 800H |
| UNS designation | N08810 |
| Product specification | ASTM B409-22 — nickel-iron-chromium alloy plate, sheet and strip |
| General requirements | ASTM B906-22, as applicable to your order |
| ASME specification | ASME SB-409 when specified by your equipment design |
| Plate condition | Annealed with controlled grain size for elevated-temperature applications |
| Grain-size requirement | ASTM grain size number 5 or coarser for N08810 |
| Plate dimensions | Thickness × width × length per your drawing or material list |
| Plate surface and edge | Specify annealed finish, scale condition and edge requirements |
| Density for estimate | Approx. 7.94 g/cm³ (material data reference) |
| Inspection package | MTC, heat analysis, tensile testing, grain-size verification and PMI as ordered |
| Shipment | Quantity, packing scope, destination port and requested delivery terms |
Grade-specific stock, origin and processing arrangements are checked by order. Company production and regular inventory figures refer to our overall steel business.
Use the minimum room-temperature acceptance values for annealed plate, supported by the measured results in your MTC.
N08810 uses a controlled carbon range associated with elevated-temperature creep and rupture performance.
Request the applicable grain-size test result and heat-treatment condition on your inspection documentation.
State the specified plate product form, edition and additional requirements with your RFQ.
Check the controlled nickel, chromium, iron and carbon composition for the annealed plate you are ordering.
| Element | Weight % — UNS N08810 |
|---|---|
| Nickel (Ni) | 30.0–35.0% |
| Chromium (Cr) | 19.0–23.0% |
| Iron (Fe) | 39.5% minimum |
| Carbon (C) | 0.05–0.10% |
| Aluminum (Al) | 0.15–0.60% |
| Titanium (Ti) | 0.15–0.60% |
| Manganese (Mn) | 1.50% maximum |
| Silicon (Si) | 1.00% maximum |
| Copper (Cu) | 0.75% maximum |
| Phosphorus (P) | 0.035% maximum |
| Sulfur (S) | 0.015% maximum |
Confirm the requested annealed finish, thickness tolerance, flatness and edge treatment for your fabrication drawings.
Specify the finish and cleanliness requirements for your process equipment.
Provide your plate dimensions, edge condition and finished part requirements.
Specify 800H for high-temperature fabricated components where the engineering design considers creep strength, oxidation and carburization resistance.
Plate parts for furnace internals, heat-treatment assemblies and thermal-processing equipment.
Fabricated plate details for reformer and cracker equipment structures as specified by the project engineer.
Alloy plate parts in high-temperature furnace structures and supporting fixtures.
Heat-processing components formed and fabricated to your equipment drawings.
Specified steel plate parts adjacent to high-temperature process equipment.
Heat-exposed structural parts subject to the required service qualification.
Plate assemblies exposed to controlled hot-gas environments and thermal cycles.
Cut blanks supplied for specialized furnace, plant and thermal equipment fabrication.
Source N08810 plate with the heat treatment and grain size required by your project. Send the plate schedule and fabrication drawings to align material condition, cut sizes and inspection scope.
Use the reference density of 7.94 g/cm³ to estimate plate weight for your purchasing and freight planning.
Estimate uses nominal density 7,940 kg/m³. Actual weight and invoicing follow your agreed commercial terms and applicable tolerances.
Provide nominal sizes, total tonnage and material documents so the quotation includes the plate condition and delivery requirements for your equipment.
Get project-based alloy plate sourcing supported by our company-wide steel manufacturing operations and organized material verification.
Our actual annual production totals 8 million metric tons across the full steel business.
Manufacturing ↗Our regular combined inventory reaches 1 million metric tons of steel. Alloy 800H plate availability is confirmed separately by size and condition.
Steel Inventory ↗Request heat analysis, tensile results, grain-size verification and additional testing for your material acceptance.
Quality Control ↗Coordinate your grade, plate sizes, delivery destination and protective packing through one enquiry.
Send your cut-profile drawings, plate dimensions and heat-treatment requirements with your order. Available processing methods can be confirmed by geometry and finish requirements.
Specify the material acceptance package for your high-temperature project.
Send your ASTM B409 plate specification for a check of material condition, quantity, available size and shipping arrangements.
ASTM B409-22 and annealed condition, including grain size.
Thickness, width, length and quantity for each item.
MTC, grain-size report, PMI and additional project requirements.
Port, required delivery schedule and packing instructions.
Grade, heat-treatment condition, documentation and lead time are confirmed against your purchase list.
Include plate finish, corner protection, material identification and handling details in your purchase order.
Compare grade-specific chemical composition, operating conditions and fabrication requirements across the product family.
ASTM B409-22 covers UNS N08810 rolled plate, sheet and strip. Specify the annealed condition, plate sizes and test requirements in your RFQ.
ASTM B409 lists a minimum tensile strength of 450 MPa, minimum 0.2% yield strength of 170 MPa and minimum elongation of 30% for annealed N08810 plate.
Alloy 800 is UNS N08800. Alloy 800H is UNS N08810 with controlled carbon and grain size. Alloy 800HT is UNS N08811 with a narrower carbon and aluminum-titanium composition range. Your project specification identifies the required material.
Send ASTM B409 / UNS N08810, the plate dimensions, quantity, annealed condition, grain-size requirements, MTC scope and destination port.
Send your required grade, dimensions, quantity and destination. Our team will review the inquiry.
