No more waiting for steel mill delivery cycles. As a professional distributor of Nimonic 75/80A plates, Gnee Steel maintains a large inventory ready to ship worldwide. We are a trusted strategic partner for the aerospace maintenance, repair, and overhaul (MRO) industry and high-end industrial furnace manufacturers, offering wholesale prices on all in-stock products with no minimum order quantity (MOQ). In situations where every hour of downtime is critical, our "ready to ship" supply chain is your ultimate guarantee against project delays.
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Comparison of high-purity high-temperature alloy Nimonic 75/80A sheet metal

Comparison of high-purity high-temperature alloy Nimonic 75/80A sheet metal
Both Nimonic 75 and Nimonic 80A plates are high-performance nickel-chromium alloy sheets renowned for their excellent high-temperature oxidation resistance. However, due to differences in composition, they differ significantly in strength, heat treatment, and applications. Nimonic 75 plate is a solid solution-strengthened medium-thickness alloy known for its ease of machining and good ductility; while Nimonic 80A plate is a precipitation-strengthened alloy (through the addition of aluminum and titanium) designed to provide superior strength and creep resistance.
What are the equivalent materials for NIMONIC 75?
Other materials equivalent to NIMONIC 75 alloy include: DIN 2.4630 and DIN 2.4951.

1. Specification of Nimonic 75 / 80A Sheets

2. Stock availability of Nimonic 75 / 80A Sheets

Nimonic 75 / 80A Hot Rolled Sheets
75 Nimonic HR Sheets
Nimonic Alloy N06075 HR Sheets
80A Nimonic Hot Rolled Sheets
Nimonic Alloy 75 Hot Rolled Sheets
ASME SB 463 Nimonic 75 HR Sheets

Nimonic 75 / 80A Cold Rolled Sheets
75 Nimonic CR Sheets
ASME SB 463 Nimonic Alloy 80A CR Sheets
Super Alloy Nimonic 80A Cold Rolled Sheets
Nimonic N07080 CR Sheets
80A Nimonic Cold Rolled Sheets

Nimonic 75 / 80A Perforated Sheets
Nimonic N07080 Perforated Sheets
80A Nimonic Perforated Sheets
Super Alloy Nimonic 75 Perforated Sheets
ASME SB 463 Nimonic Alloy 75 Perforated Sheets

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3. Equivalent Grades Nimonic 75 / 80A Sheets
| STANDARD | WERKSTOFF NR. | UNS |
| Nimonic 75 | 2.4951 | N06075 |
| Nimonic 80 | 2.4952 | N07080 |
4. Chemical Composition of Nimonic 75 / 80A Sheets
| Grade | Al | B | C | Cr | Co | Cu | Fe | Mn | Ni | P | Si | S |
| Nimonic 80 | 1 – 1.8 | 0.008 max | 0.1 max | 18 – 21 | 0.2 max | 0.2 max | 3 max | 1 max | Balance | 0.045 max | 1 max | 0.015 max |
| Nimonic 75 | Max 0.15 | 19-22 | Max 0.12 | Max 0.15 | Max 1.0 | Max 0.70 | Max 0.2 | Bal. | Max 0.015 | Max 0.02 | Max 0.80 | 0.15-0.35 |
5. Mechanical Properties of Nimonic 75 / 80A Sheets
| Grade Nimonic 75 |
Tensile strength(annealed) | Yield strength(annealed) | Elongation at Break | Modulus of Elasticity |
| Metric | 750 MPa | 275 MPa | 42% | 206 GPa |
| Imperial | 109 ksi | 40 ksi | 42% | 29878 ksi |
6. Nimonic 75 / 80A Sheet Weight / Size
| WEIGHT PER NIMONIC SHEET : | ||||
| THICKNESS IN MM | SIZE IN MM | WEIGHT KG/M2 | ||
| 2000 X 1000 | 2500 X 1250 | 3000 X 1500 | ||
| 0.18 | 2.88 | – | – | 1.44 |
| 0.20 | 3.20 | – | – | 1.60 |
| 0.22 | 3.52 | – | – | 1.76 |
| 0.24 | 3.84 | – | – | 1.92 |
| 0.27 | 4.32 | – | – | 2.16 |
| 0.28 | 4.48 | – | – | 2.24 |
| 0.32 | 5.12 | – | – | 2.56 |
| 0.38 | 6.08 | – | – | 3.04 |
| 0.44 | 7.04 | 11.00 | – | 3.52 |
| 0.50 | 8.00 | 12.50 | – | 4.00 |
| 0.56 | 8.96 | 14.00 | – | 4.48 |
| 0.63 | 10.08 | 15.75 | – | 5.04 |
| 0.75 | 12.00 | 18.75 | – | 6.00 |
| 0.88 | 14.08 | 22.00 | – | 7.04 |
| 1.00 | 16.00 | 25.00 | 36.00 | 8.00 |
| .1.13 | 18.08 | 28.25 | 40.00 | 9.04 |
| 1.25 | 20.00 | 31.25 | 45.00 | 10.00 |
| 1.38 | 22.03 | 34.50 | 50.00 | 72.00 |
| 1.50 | 24.00 | 37.50 | 54.00 | 12.00 |
| 1.75 | 28.00 | 43.75 | 63.00 | 14.00 |
7. Nimonic 75 / 80A Sheet Thickness Tolerance
| Thickness in. (mm) |
Sheet Width | |
| 36 (914.4) in. (mm |
48 (1,219) in. (mm) |
|
| 0.017–0.030 (0.43–0.76) | 0.0015 (0.038) | 0.002 (0.051) |
| 0.031–0.041 (0.79–1.04) | 0.002 (0.051) | 0.003 (0.076) |
| 0.042–0.059 (1.1–1.5) | 0.003 (0.076) | 0.004 (0.10) |
| 0.060–0.073 (1.5–1.9) | 0.003 (0.076) | 0.0045 (0.11) |
| 0.074–0.084 (1.9–2.1) | 0.004 (0.10) | 0.0055 (0.14) |
| 0.085–0.099 (2.2–2.5) | 0.004 (0.10) | 0.006 (0.15) |
| 0.100–0.115 (2.5–2.9) | 0.005 (0.13) | 0.007 (0.18) |
| 0.116–0.131 (2.9–3.3) | 0.005 (0.13) | 0.0075 (0.19) |
| 0.132–0.146 (3.4–3.7) | 0.006 (0.15) | 0.009 (0.23) |
| 0.147–0.187 (3.7–4.7) | 0.007 (0.18) | 0.0105 (0.2 |
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8. Gnee Steel GH3030 Sheet Metal Services
As a leading superalloy stockholder, we cater to a wide range of needs, from small-scale repairs to large-scale production.
Extensive Thickness Range: From precision cold-rolled sheets (0.5mm) to heavy-duty hot-rolled forged sheets (50mm).
Precision Cutting Services: We offer laser cutting, waterjet cutting, and sawing services. You can purchase the "final shape" you need, reducing procurement costs and material waste.
Global Strategic Shipping: We provide fast air freight solutions for aircraft parking (AOG) situations in Singapore, India, the UAE, and Europe.
Full Traceability: Each sheet comes with a Factory Test Certificate (MTC) conforming to EN 10204 3.1.

GH3030 certificate
FAQ
Q1: Do you accept orders for just one or two Nimonic 75 sheets?
A: Yes! We specialize in supporting the MRO sector. For our inventory in stock, we have No MOQ. Whether you need a single 1.0mm sheet for a combustion liner patch or a bulk order for a new furnace build, we provide the same high-level service.
Q2: Why is Nimonic 75 better than 310S for burner maintenance?
A: Standard 310S stainless steel flakes and scales at 800°C, which can clog fuel nozzles. Nimonic 75 (GH3030) forms a tenacious oxide layer that won't flake, ensuring the engine or burner stays clean and operational for longer intervals.
Q3: What is the lead time for shipping to Europe or North America?
A: For stock items, we can dispatch within 24-48 hours. Depending on the shipping method, air-freight typically reaches major international hubs within 5-7 business days.

