High Nickel Alloy Plate
High Nickel Alloy Plates are flat rolled products widely used as base materials for fabricating pressure vessels, heat exchangers, and reactor components requiring exceptional corrosion and oxidation resistance. These plates offer uniform mechanical properties and fine grain structure after solution annealing, enabling superior weldability and formability. Their thick and wide dimensions facilitate large fabrications without compromising strength. They perform exceptionally well against acid attack and thermal cycling, making them indispensable in chemical, aerospace, and power generation industries where both durability and precise tolerances are essential.
High Nickel Alloy Plate - Specification Table
| Parameter | Details |
|---|---|
| Manufacturing Standards | ASTM B463 (Nickel Alloy Plates – UNS N08020) ASTM B575 (Nickel Alloy Plate, Sheet, Strip) ASTM B168 (Nickel-Chromium-Iron Alloys – UNS N06600/N06601) ASTM B424 (Nickel-Molybdenum Alloys – UNS N10276, etc.) AMS 5540 / 5599 / 5862 ASME SB463 / SB575 / SB424 |
| Material Grades | Inconel 600, 601, 625, 718 Incoloy 800, 800H, 800HT, 825 Hastelloy C-22, C-276, B-2, B-3 Monel 400, K500 Nickel 200, 201 Alloy 20, Alloy X, Alloy 59 |
| Thickness Range | 0.5 mm to 100 mm (0.02" to 4"), up to 150 mm (6") on request |
| Width Range | Up to 2000 mm (78.7"), custom widths available |
| Length Range | Up to 6000 mm (236"), or cut to length as per requirement |
| Form | Plate, Sheet, Coil, Strip, Blank |
| Surface Finish | Hot Rolled Annealed (HRA), Cold Rolled (2B), Pickled & Passivated, Bright Annealed, Mirror/Polished (No. 4, No. 8), Mill Finish |
| Heat Treatment | Solution Annealed, Stress Relieved (as per grade and spec) |
| Mechanical Properties | High tensile and yield strength, excellent elongation and toughness; properties vary by grade (see mechanical table) |
| Dimensional Tolerances | As per ASTM A480/A480M, B463, B575, or customer specification |
| Testing & Inspection | Ultrasonic Testing (UT), PMI (Positive Material Identification), Flattening/Bend Test, IGC (Intergranular Corrosion), Hardness, Chemical Analysis, NDT (on request) |
| Certifications | EN 10204 3.1 / 3.2, NACE MR0175/MR0103, PED 2014/68/EU, ISO 9001, ASTM/ASME Compliance |
| Typical Applications | Chemical Processing, Heat Exchangers, Reactors, Petrochemical Vessels, Flue Gas Scrubbers, Marine Environments, Pharmaceutical Equipment, Nuclear and Aerospace Systems |
Mechanical Properties
| Alloy | Grade | Tensile Strength (MPa / ksi) | Yield Strength (0.2% Offset, MPa / ksi) | Elongation (% in 50 mm) | Hardness (HRB) |
|---|---|---|---|---|---|
| Nickel | Nickel 200 | 380–485 MPa (55–70 ksi) | 105–135 MPa (15–20 ksi) | ≥45% | 60–80 |
| Nickel | Nickel 201 | 380–450 MPa (55–65 ksi) | 90–120 MPa (13–17 ksi) | ≥50% | 55–75 |
| Monel | Monel 400 | 550–620 MPa (80–90 ksi) | 170–275 MPa (25–40 ksi) | ≥35% | 65–85 |
| Inconel | Inconel 600 | 550–690 MPa (80–100 ksi) | 240–310 MPa (35–45 ksi) | ≥30% | 70–90 |
| Inconel | Inconel 625 | 827–930 MPa (120–135 ksi) | 414–517 MPa (60–75 ksi) | ≥30% | 80–92 |
| Inconel | Inconel 718 | 1240 MPa (180 ksi) | 1035 MPa (150 ksi) | ≥25% | 92–100 |
| Incoloy | Incoloy 800H/HT | 500–650 MPa (72–94 ksi) | 200–310 MPa (29–45 ksi) | ≥30% | 75–85 |
| Hastelloy | C-276 | 690–800 MPa (100–116 ksi) | 283–360 MPa (41–52 ksi) | ≥40% | 75–90 |
| Hastelloy | C-22 | 760–870 MPa (110–126 ksi) | 320–360 MPa (46–52 ksi) | ≥45% | 75–90 |
| Special Alloy | Alloy 20 | 551–750 MPa (80–110 ksi) | 241–365 MPa (35–53 ksi) | ≥30% | 70–88 |
Chemical Composition
| Alloy | Ni | Cr | Fe | Mo | Cu | Other Elements | C (Max) |
|---|---|---|---|---|---|---|---|
| Nickel 200 | ≥99.0 | — | ≤0.4 | — | ≤0.25 | Mn ≤0.35, Si ≤0.35, S ≤0.01 | 0.15 |
| Nickel 201 | ≥99.0 | — | ≤0.4 | — | ≤0.25 | Mn ≤0.35, Si ≤0.35, S ≤0.01 | 0.02 |
| Monel 400 | 63.0 min | — | 1.0–2.5 | — | 28.0–34.0 | Mn ≤2.0, Si ≤0.5 | 0.30 |
| Inconel 600 | ≥72.0 | 14.0–17.0 | 6.0–10.0 | — | ≤0.5 | Mn ≤1.0, Si ≤0.5, S ≤0.015 | 0.15 |
| Inconel 625 | ≥58.0 | 20.0–23.0 | ≤5.0 | 8.0–10.0 | ≤0.5 | Nb+Ta: 3.15–4.15, Mn ≤0.5 | 0.10 |
| Inconel 718 | 50–55 | 17.0–21.0 | Balance | 2.8–3.3 | ≤0.3 | Nb+Ta: 4.75–5.5, Ti: 0.65–1.15, Al: 0.2–0.8 | 0.08 |
| Incoloy 800H/HT | 30.0–35.0 | 19.0–23.0 | 39.5 min | ≤1.0 | ≤0.75 | Al: 0.15–0.60, Ti: 0.15–0.60 | 0.05–0.10 |
| Hastelloy C-276 | 57.0 min | 14.5–16.5 | 4.0–7.0 | 15.0–17.0 | ≤0.5 | W: 3.0–4.5, Co ≤2.5, Mn ≤1.0 | 0.01 |
| Hastelloy C-22 | 56.0 min | 20.0–22.5 | 2.0–6.0 | 12.5–14.5 | ≤0.5 | W: 2.5–3.5, Co ≤2.5 | 0.015 |
| Alloy 20 | 32.0–38.0 | 19.0–21.0 | 35.0 min | 2.0–3.0 | 3.0–4.0 | Nb: 8×C to 1.0%, Mn ≤2.0 | 0.06 |