Are you struggling with the high costs and long lead times of sourcing Nimonic 75 (W.Nr. 2.4951) steel plates from European distributors? In the global aerospace and industrial furnace sectors, finding a reliable supplier that can provide equivalent products without incurring a "brand premium" is key to optimizing your budget.
Gnee Steel, a leading factory direct distributor in China, specializes in producing GH3030 nickel alloy steel plates. GH3030 is technically identical to Nimonic 75 in the UK. Our mission is to provide you with the same superior high-temperature performance, fully compliant with international standards, and at wholesale prices.
Check the compatibility and pricing of the GH3030 and Nimonic 75
GH3030 and Nimonic 75 Steel Plates: A Procurement Guide for the Aerospace Industry
GH3030 and Nimonic 75 Steel Plates: A Procurement Guide for the Aerospace Industry
GH3030 and Nimonic 75 are both high-temperature nickel-chromium based superalloys, commonly used in sheet form for applications requiring excellent oxidation resistance and medium to high strength at high temperatures. They are widely used in turbine engine components, industrial furnaces, and aerospace engineering.
Does GH3030 meet international standards?
Yes, our GH3030 is fully equivalent to Nimonic 75 and XH78T. We provide EN 10204 3.1 material certification for every order to ensure superior quality.
1. GH3030 Alloy Sheet
Features: Excellent oxidation resistance and good heat resistance, especially below 800℃. Good resistance to thermal fatigue and cold stamping performance.
Applications: Widely used in the aerospace industry for fasteners and combustion chamber components operating below 800℃.
Combustion chamber lining
Dimensions: Available in sheet metal, thin plates, and other forms such as seamless tubes and bars.
2. Nimonic 75 (UNS N06075) Sheet Metal
Characteristics: Good mechanical properties and oxidation resistance, commonly used in sheet metal processing.
Applications: Widely used in gas turbine components, industrial heat treatment, furnace components, and heat treatment equipment.
Processing: Easy to process and weld, with excellent cold deformation ductility, but also prone to rapid strain hardening.
Dimensions: Available in sheet metal (thickness 0.1mm to 100mm, maximum width 1500mm, maximum length 6000mm) and other forms such as seamless tubes, sheets, and bars.
Download the PDF comparing GH3030 and Nimonic 75 technologies
3.Comparison of chemical composition between GH3030 and Nimonic 75
| Element | GH3030 (China GB) | Nimonic 75 (UK BS HR 5) |
| Nickel (Ni) | Balance (Min. 75%) | Balance (Min. 72%) |
| Chromium (Cr) | 19.0 - 22.0% | 18.0 - 21.0% |
| Titanium (Ti) | 0.15 - 0.35% | 0.20 - 0.60% |
| Iron (Fe) | ≤ 1.5% | ≤ 5.0% |
| Carbon (C) | ≤ 0.12% | 0.08 - 0.15% |
The Similarities: Both are solid-solution strengthened nickel-chromium alloys. Their Ni-Cr ratio is designed for superior Oxidation Resistance and moderate thermal strength below 800°C.
4.Mechanical properties of GH3030 compared to Nimonic 75 sheet (solution treated state)
| Property | GH3030 Plate | Nimonic 75 Plate |
| Tensile Strength (σbσb) | ≥ 735 MPa | ~ 730 MPa |
| Yield Strength (σ0.2σ0.2) | ≥ 245 MPa | ~ 300 MPa |
| Elongation (δ5δ5) | ≥ 35% | ≥ 30% |
| Typical Hardness | ≤ 200 HB | 150 - 200 HB |
Contact our professionals to recommend alloys suitable for your project
5. Advantages of Bright Annealed (BA) Finish on GH3030 Sheets
For our cold-rolled steel sheets (0.5mm - 4.0mm), we focus on superior surface quality. Unlike many standard industrial steel sheets, our GH3030 steel sheets are available with a bright annealed (BA) finish.
Mirror-like shine: Our controlled atmosphere annealing process ensures the steel sheet surface is free of oxide scale and has excellent reflectivity. This is crucial for aerospace heat shields and high-purity furnace linings.
Corrosion resistance: The BA finish forms a more uniform passivation layer, preventing localized corrosion-a common failure point for "rough" pickled surfaces.
Precision manufacturing: We guarantee precise tolerances, ensuring our steel sheets are ready for automated laser cutting and assembly.
GH3030 Bright Annealed (BA) Finish Sheets
6. Why Choose Gnee Steel for Sourcing?
As your supply chain partner, Gnee Steel offers cost-effective solutions through direct exports from large factories:
Wholesale Prices: Purchase at factory-direct prices, eliminating 20-40% markups from international intermediaries.
Global Shipping: We have extensive experience shipping products to major aerospace centers in Europe, North America, and Southeast Asia.
MRO Emergency Supply: We maintain a large inventory of standard thicknesses (1mm, 2mm, 3mm, 5mm) for immediate shipment.
Contact us now to get the latest export price for GH3030 in 2026
Stop paying exorbitant prices for Western brands. We can offer you the same aerospace-grade GH3030 superalloy tubing at a lower price. Our team is ready to provide you with a rapid quote (RFQ) within 12 hours.
Email: [ru@gneesteelgroup.com]
WhatsApp/WeChat: +86 15824687445
Website: [https://www.china-plate-steel.com/]
FAQ
Q1: Can GH3030 be used as a "drop-in" replacement for Nimonic 75?
A: Yes. GH3030 is chemically and mechanically equivalent to Nimonic 75 (W.Nr. 2.4951). It is a certified Equivalent Grade used widely in aerospace combustion liners and gas turbine components worldwide.
Q2: Do you provide certification to International Standards like ASTM or BS?
A: Every order is accompanied by an EN 10204 3.1 Material Certification. We cross-verify our test results with ASTM B168 and BS HR 5 standards to ensure your engineering team has full compliance data.
Q3: What is the benefit of your Bright Annealed (BA) finish?
A: BA finish ensures the sheet is 100% free of oxide scale, providing a cleaner surface for high-precision welding and a higher quality finish for the final component.
Q4: How do you handle small-volume MRO orders?
A: While we are a Large Scale Factory, we recognize the needs of the MRO market. We accept small orders for stocked items with no minimum order quantity (MOQ) for standard sizes.
