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| Customization: | Available |
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| Type: | Coil |
| Standard: | AISI, ASTM, DIN, JIS, GB, BS |
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Haynes 556 (UNS R30556) is a high-strength nickel-chromium-cobalt-tungsten alloy engineered for exceptional performance in high-temperature and highly corrosive industrial environments.
Available in strip, coil, and foil forms, Haynes 556 offers outstanding resistance to oxidation, sulfidation, carburization, and hot corrosion, making it one of the most versatile alloys for extreme heat applications.
The alloy maintains excellent creep resistance, thermal stability, and mechanical strength at temperatures exceeding 1100°C, while also providing superior resistance to chloride stress-corrosion cracking and aggressive chemical atmospheres.
Typical applications include:
Industrial and petrochemical furnace components
Heat-treat fixtures and trays
Gas turbine and combustion system hardware
Chemical processing equipment
High-temperature structural parts
With its combination of strength, corrosion resistance, and long-term thermal stability, Haynes 556 is widely used in industries that require reliable performance under the most demanding service conditions.
| Hastelloy | ||||||||||||
| Grade | Ni | Cr | Fe | Mo | W | Co | C | Mn | Si | S | P | Other |
| C-276 | Rom | 15-16.5 | 4-7 | 15-17 | 3-4.5 | 2.5 | 0.01 | 1 | 0.08 | 0.001 | 0.015 | v0.1-0.3 |
| C-22 | 56-59 | 20-22.5 | 2-6 | 12.5-14.5 | 2.5-3.5 | 2.5 | 0.015 | 0.5 | 0.08 | 0.02 | v0.35 | |
| C-2000 | Rom | 22-24 | 3 | 15-17 | 2 | 0..01 | 0.5 | 0.06 | 0.01 | 0.025 | Al0.5 Cu1.6 | |
| B-2 | Rom | 0.4-0.7 | 1.6-2 | 26-30 | 1 | 0.01 | 1 | 0.08 | 0.01 | 0.02 | Cu0.5 | |
| B-3 | 64 | 1-3 | 1-3 | 27-32 | 3 | 3 | 0.01 | 3 | 0.1 | 0.01 | 0.03 | v0.2 Al0.5 Ti0.2 Cu0.2 |
| G-30 | Rom | 28-31.5 | 13-17 | 4-6 | 1.5-4 | ≤5 | 0..03 | ≤2 | ≤1 | ≤0.02 | ≤0.04 | Nb/Ta0.3-1.5 Cu1-2.4 |
| X | Rom | 20.5-23.5 | 17-20 | 8-10 | 0.2-1 | 0.5-2.5 | 0.05-0.15 | 1 | 1 | 0.015 | 0.025 | Al0.5 Ti0.15 B0.005 |
| C-4 | Rom | 14-18 | 3 | 14-17 | 2 | 0.015 | 1 | 0.08 | 0.7 | 0.04 | Ti0.7 | |
| G-35 | 8-10 | 5 | 33 | 2 | 0.03 | 2-3 | 1.5 | 1 | 2 | 0.02 | Cu0.04 | |
| C | Rom | 14.5-17.5 | 4-7 | 15-17 | 3-4.5 | 0.03 | 1 | 0.03 | 0.04 | |||
| Hastelloy |
Density
g/cm3
|
Melting point
ºC
|
Elongation A5 % |
Tensile Strength
Rm N/mm2
|
Yield Strength
RP0.2N/mm2
|
| C-276 | 8.9 | 1325-1370ºC | 62 | 758 | 363 |
| C-22 | 8.9 | 1325-1370ºC | 40 | 690 | 283 |
| C-2000 | 8.5 | 1399ºC 2550°F | 45 | 690 | 283 |
| B-2 | 9.2 | 1330-1380ºC | 40 | 745 | 325 |
| B-3 | 9.22 | 1370-1418ºC | 40 | 760 | 350 |
| G-30 | 8.22 | 1399ºC 2550°F | 62 | 524 | 200 |
| X | 8.3 | 1260-1355ºC | 30 | 690 | / |
| C-4 | 8.64 | 399°C 2550°F | 40 | 690 | 280 |
| G-35 | 8.22 | 1370-1400ºC | / | / | / |
| C | 8.94 | 1330-1380 ºC | 40 | 690 | 310 |
HASTELLOY G-3 is a versatile nickel-chromium-iron-molybdenum alloy designed for exceptional resistance to oxidizing and reducing environments. It provides outstanding corrosion resistance, particularly in chemical processing environments involving strong oxidizing agents, such as ferric and cupric chlorides, and in oxidizing acids
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | Balance |
| Chromium (Cr) | 21.0-23.5 |
| Molybdenum (Mo) | 6.0-8.0 |
| Iron (Fe) | 18.0-21.0 |
| Copper (Cu) | 1.5-2.5 |
| Manganese (Mn) | 1.0 max |
| Silicon (Si) | 1.0 max |
| Cobalt (Co) | 5.0 max |
| Carbon (C) | 0.02 max |
| Property | Value |
|---|---|
| Tensile Strength | ≥ 790 MPa |
| Yield Strength (0.2%) | ≥ 355 MPa |
| Elongation | ≥ 40% |






Hastelloy is a high-performance corrosion-resistant alloy widely used in industries such as chemical processing, aerospace, marine, and energy, especially in extreme temperature and corrosive environments. Its main components include nickel, molybdenum, chromium, and other metal elements.
We sell a variety of Hastelloy alloys, including but not limited to:
When selecting Hastelloy materials, consider the following factors:
If you're unsure about which alloy to choose, our technical support team can assist you with professional recommendations based on your requirements.
We offer a wide range of Hastelloy products, including plates, pipes, bars, wires, and customized products. Specifications include various thicknesses, diameters, lengths, etc., to meet diverse customer needs.
For standard stock items, the delivery time is typically 3-7 working days. For customized or specially processed products, delivery time may vary and is generally 2-4 weeks. Specific delivery times can be confirmed based on order quantities and production schedules.
All of our Hastelloy products are sourced from reliable manufacturers and strictly adhere to international quality standards. Each batch of materials comes with detailed quality inspection reports and material certificates to ensure that the products meet performance and quality standards.
Yes, we provide free technical support services. Our engineering team can assist with material selection, processing techniques, performance testing, and more. Whether it's product selection or engineering design, we can provide professional consulting services.
You can request a quote through the following methods:
Yes, we offer worldwide shipping. Our experienced logistics team can assist with various international shipping issues, including transportation options, customs handling, and destination requirements.
We accept various payment methods, including bank transfers, credit card payments, PayPal, and more. The specific payment method can be confirmed based on the order amount and customer preferences.
Due to the customized or specialty nature of Hastelloy materials, our return and exchange policy is strict. Standard stock products can be returned or exchanged if they are unused and unprocessed. Please confirm the return/exchange conditions and process with our sales team before placing an order.
We can provide the following certifications and documents:
Yes, we provide customized processing services for Hastelloy alloys, including cutting, welding, precision machining, and more. Whether it's standard dimensions or special requirements, we can process the materials to meet your needs.
You can contact us through the following methods:
Online support: Visit our website for live chatWe look forward to providing you with high-quality products and services!
If you have any other questions, feel free to contact us, and we will do our best to assist you!