ASTM B463 UNS N08020 Round Bar Ø70 X 382mm Hot Rolled ALLOY 20# Solid Rod
UNS N08020 Round Bar Ø70 X 382mm Hot Rolled ALLOY 20# Solid Rod
Product Description
INCOLOY 20 (UNS N08020) is a nickel-iron-chromium austenitic alloy specially developed for excellent resistance to sulfuric acid, chloride-induced corrosion, pitting, and stress-corrosion cracking.
Stabilized with columbium (Nb), Alloy 20 provides superior mechanical strength, excellent metallurgical stability, and outstanding performance in strong acids and corrosive chemical environments.
This alloy is widely used in chemical processing, pharmaceutical production, pickling equipment, heat exchangers, and other anti-corrosion applications.
Material is typically supplied in annealed condition with full EN 10204 3.1 MTC.
Chemical Composition (Typical)
| Element | Content (%) |
|---|---|
| Nickel (Ni) | 32.0 - 38.0 |
| Chromium (Cr) | 19.0 - 21.0 |
| Iron (Fe) | Balance |
| Copper (Cu) | 3.0 - 4.0 |
| Molybdenum (Mo) | 2.0 - 3.0 |
| Manganese (Mn) | ≤ 2.0 |
| Silicon (Si) | ≤ 1.0 |
| Columbium + Tantalum (Nb+Ta) | 8 × C to 1.0 |
| Carbon (C) | ≤ 0.07 |
| Sulfur (S) | ≤ 0.035 |
Mechanical Properties (Typical)
| Property | Typical Value |
|---|---|
| Tensile Strength | ≥ 620 MPa |
| Yield Strength (0.2%) | ≥ 275 MPa |
| Elongation | ≥ 30% |
| Hardness | ≤ 95 HRB |
Key Features()
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Excellent resistance to sulfuric acid (HSO)
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Strong resistance to pitting & crevice corrosion
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Very good chloride stress-corrosion-cracking resistance
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Stabilized with niobium for superior intergranular corrosion resistance
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Good mechanical properties and weldability
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Applicable across a broad temperature & chemical environment range
Applications()
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Sulfuric acid processing equipment
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Pickling tanks and racks
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Heat exchangers & chemical reactors
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Pharmaceutical and food-processing equipment
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Petrochemical piping and storage systems
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Marine & offshore anti-corrosion components
What types of high-temperature alloy products do you offer?
We offer high-temperature alloy rods, wires, strips, plates, tubes, bolts, and nuts. Our products cover various specifications and sizes to meet different application needs.
How to choose the right high-temperature alloy material?
Choosing the right high-temperature alloy material requires a comprehensive consideration of factors such as the temperature, corrosiveness, and mechanical strength requirements of the specific application environment. Our engineers can provide professional advice to help you select the most suitable material.
What international standards do your high-temperature alloy products meet?
Our products meet international standards such as ASTM, AMS, GB/T, ensuring product quality and reliability.
Can you customize products according to customer requirements?
Yes, we offer customized services based on the specific needs of our customers, including special specifications and performance requirements.
What are your production processes and quality control like?
We use advanced production processes and a strict quality control system. From raw material procurement to the final product shipment, every step is carefully monitored to ensure the product quality meets the standards.
Can you provide samples?
Yes, we can provide samples according to your requirements.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.