Incoloy 840 plate is a heat-resistant, corrosion-resistant alloy plate composed primarily of iron, nickel, and chromium. It is particularly effective in applications involving high-temperature oxidation, thermal cycling, and carburizing environments. Commonly used in furnace components, heat treatment trays, chemical processing equipment, and exhaust systems, Incoloy 840 plates are manufactured in accordance with ASTM and UNS S33400 standards. This article introduces the key manufacturers of Incoloy 840 plates, their production capabilities, specifications, and applications.
Technical Specifications of Incoloy 840 Plates
Plates are produced in various thicknesses and dimensions, with controlled mechanical and chemical properties.
| Specification | Value |
|---|---|
| Standard | ASTM A240 / UNS S33400 |
| Thickness | 1.5mm – 50mm |
| Width | Up to 2000mm |
| Length | 2000mm – 6000mm or custom |
| Finish | No.1 (Hot Rolled), 2B (Cold Rolled), Polished |
Top Incoloy 840 Plate Manufacturers
These manufacturers are recognized for their production quality, certifications, and global supply capabilities:
| Manufacturer | Country | Specialization |
|---|---|---|
| Jiangsu Steel Group | China | Hot-rolled Incoloy 840 plates with ASTM compliance |
| VDM Metals GmbH | Germany | High-temperature alloy plates for critical applications |
| Special Metals Corporation | USA | Original developer of Incoloy 840 alloy products |
| Steel Tubes India | India | Custom-sized plates and cut-to-length processing |
| Shanghai Huitong Special Steel Co., Ltd. | China | Industrial alloy plates for furnaces and exhaust systems |
Mechanical Properties of Incoloy 840 Plate
The alloy offers excellent thermal and mechanical strength under oxidizing and high-temperature conditions:
| Property | Typical Value |
|---|---|
| Tensile Strength | ≥ 550 MPa |
| Yield Strength (0.2%) | ≥ 240 MPa |
| Elongation | ≥ 30% |
| Hardness | ≤ 90 HRB |
Certifications and Quality Standards
Reputable manufacturers provide third-party test reports and meet global industry requirements:
| Certificate | Description |
|---|---|
| ASTM A240 | Standard specification for heat-resistant alloy plates |
| EN 10204 3.1 / 3.2 | Mill Test Certificates with full traceability |
| ISO 9001 | Quality management systems certification |
| Ultrasonic / PMI Testing | Defect and material verification testing |
Applications of Incoloy 840 Plates
Its heat and corrosion resistance makes Incoloy 840 plate suitable for multiple industrial sectors:
| Industry | Use Case |
|---|---|
| Furnace Manufacturing | Trays, radiant tubes, heat shields |
| Exhaust Systems | Automotive and marine exhaust liners |
| Heat Treatment | Support plates, containers, baffle plates |
| Chemical Processing | Components exposed to oxidizing agents |
FAQs About Incoloy 840 Plate Manufacturers
Is Incoloy 840 plate suitable for high-temperature oxidation?
Yes, Incoloy 840 is engineered for excellent oxidation resistance up to 1100°C, making it suitable for continuous high-heat exposure.
Can manufacturers provide customized plate sizes?
Yes, most manufacturers offer cut-to-size, sheared, or plasma-cut plates to match the customer’s engineering drawings.
Do Incoloy 840 plate manufacturers offer international shipping?
Yes, leading manufacturers based in China, India, and Germany provide global logistics, export documentation, and third-party inspections upon request.
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