UNS N06625 / 2.4856 • ASTM B443-26 • NICKEL ALLOY PLATE
CORROSION & HIGH-TEMPERATURE SERVICE
Source UNS N06625 plate for marine, chemical-processing and high-temperature equipment. Send your required plate size, heat-treated condition, order quantity and destination to receive a quotation.
View ASTM B443 Specifications ↓
Confirm UNS designation, ASTM plate grade, finish and certificate requirements with your purchase specification.
| Commercial designation | Inconel 625 / Alloy 625 |
| UNS designation | N06625 |
| European material number | 2.4856 |
| Plate standard | ASTM B443-26 |
| ASME designation | ASME SB-443 when specified for the project |
| Product family | Nickel-chromium-molybdenum-niobium alloy plate |
| Grade 1 | Annealed |
| Grade 2 | Solution annealed |
| Dimensions | Thickness × width × length as specified in your RFQ |
| Finish / edges | Annealed or solution-annealed plate; surface and cut edges per order |
| Documentation | Mill Test Certificate, heat identification, testing and PMI if requested |
| Commercial terms | Plate count, total MT, destination port and delivery terms |
Material origin, exact availability, certificate scope and delivery condition are confirmed for your quotation. The company-wide production and inventory figures above cover the full steel product range.
Mechanical acceptance depends on the specified heat treatment and product form. Use the matching grade when preparing your purchasing documents.
Annealed · Hot-Rolled Plate
| Minimum tensile strength | 758 MPa (110 ksi) |
| Minimum 0.2% yield strength | 379 MPa (55 ksi) |
| Minimum elongation (50 mm) | 30% |
| Reference plate thickness | ≤ 70 mm |
Hot-rolled Grade 1 plate reference values for thickness up to 70 mm, based on the published ASTM B443 mechanical table.
Solution Annealed · Hot-Rolled Plate
| Minimum tensile strength | 690 MPa (100 ksi) |
| Minimum 0.2% yield strength | 276 MPa (40 ksi) |
| Minimum elongation (50 mm) | 30% |
| Condition | Solution annealed |
Grade 2 reference values are for solution-annealed plate. Specify the applicable ASTM edition and heat-treatment condition with your RFQ.
| Element | UNS N06625 (mass %) |
|---|---|
| Nickel (Ni) | ≥ 58.0 |
| Chromium (Cr) | 20.0–23.0 |
| Molybdenum (Mo) | 8.0–10.0 |
| Niobium + Tantalum (Nb + Ta) | 3.15–4.15 |
| Iron (Fe) | ≤ 5.0 |
| Carbon (C) | ≤ 0.10 |
| Manganese (Mn) | ≤ 0.50 |
| Silicon (Si) | ≤ 0.50 |
| Phosphorus (P) | ≤ 0.015 |
| Sulfur (S) | ≤ 0.015 |
| Cobalt (Co) | ≤ 1.0 |
| Aluminium (Al) | ≤ 0.40 |
| Titanium (Ti) | ≤ 0.40 |
| Density | 8.44 g/cm³ |
| UNS | N06625 |
| Material No. | 2.4856 |
| Corrosion resistance | Chloride-bearing and many aggressive chemical environments |
| Heat treatment | Grade 1 annealed / Grade 2 solution annealed |
| Documents | MTC + PMI scope as agreed |
Reference mechanical properties are drawn from published ASTM B443 Grade 1 / Grade 2 plate tables. Confirm acceptance criteria to ASTM B443-26 or the standard edition named in the purchase order.
Review the plate surface, annealed finish and edges when specifying material for your fabrication or inspection process.
Specify the surface condition and any descaling or finishing requirements with your order.
Include plate dimensions, edge condition and flatness requirements in your RFQ.
Alloy 625 is specified for components exposed to aggressive process conditions or demanding temperatures. Confirm grade and performance against your equipment design.
Source plate for reaction vessels, heat exchangers, columns and chemical-handling equipment.
Fabricated plates for seawater service, offshore equipment and corrosion-resistant components.
Plate used in process vessels, reaction systems and distillation equipment.
Fabricated components for marine engineering and saltwater handling.
Plate components for temperature-sensitive industrial exhaust assemblies.
Corrosion-service equipment associated with industrial exhaust treatment.
Specialty plate for fabricated oil and gas plant components.
Plate blanks for equipment covers, exchanger components and welded assemblies.
Send the requested standard, heat-treatment grade, dimension list and inspection scope.
Share your finished sizes and fabrication drawings to quote material for your plant equipment. You can specify the condition, MTC, surface finish and processing requirements with the alloy plate order.
Estimate the plate weight for your procurement schedule using the nominal density of 8.44 g/cm³.
Calculated by nominal plate dimensions and alloy density. Final commercial weight follows the agreed measurement and delivery terms.
Source specialty plate through one sales team coordinating material requirements, verification and delivery terms for your order.
Our actual annual steel production reaches 8 million metric tons across the overall product portfolio.
Manufacturing ↗Our regular company-wide inventory reaches 1 million metric tons. Your exact N06625 plate quantity and size are checked separately.
Steel Inventory ↗List your UNS designation, ASTM grade, heat analysis, PMI and inspection requirements in one RFQ.
Quality Control ↗Coordinate dimensions, quantity, packing, commercial terms and destination through our sales team.
Provide plate size or technical drawings so available processing options can be reviewed against material thickness and tolerances.
Include your inspection certificate, chemistry and mechanical verification requirements with the purchase enquiry.
Send your material list for a Grade 1 or Grade 2 availability review and order-specific delivery information.
ASTM B443-26, UNS N06625 and the required heat-treated condition.
Thickness, width, length and required piece count for each plate.
MTC, PMI, heat traceability and supplementary testing requirements.
Destination port, packing preferences and requested shipment date.
Material condition, available size and sourcing arrangements are checked for each enquiry.
Coordinate packaging, marking and transport protection with the plate dimensions and your handling requirements.
Review other UNS grades for your material specification and procurement list. Select each alloy against its own service and mechanical requirements.
Key information for purchasing teams specifying UNS N06625 plate.
ASTM B443-26 covers UNS N06625 plate, sheet and strip. Specify Grade 1 or Grade 2 with your requested material condition.
Grade 1 is annealed; Grade 2 is solution annealed. Their mechanical requirements and intended service conditions differ. Confirm the selected grade and heat-treatment condition in your purchase specification.
Multiply thickness, width and length in millimetres by 0.00000844 to estimate kilograms per plate using a nominal density of 8.44 g/cm³.
Send UNS N06625, required ASTM grade, plate dimensions, quantity, MTC and PMI requests, and destination port.
Send your required grade, dimensions, quantity and destination. Our team will review the inquiry.
