ASTM ASME SB 574 Hastelloy C276 UNS N10276 Bar

ASTM/ASME SB 574 Hastelloy C276 UNS N10276 Bar is a specific type of Hastelloy C276 alloy in the form of a bar, meeting the specifications outlined in ASTM/ASME SB 574. Here's some more detailed information about it:

Common Types and Sizes:

Hastelloy C276 bars can come in various shapes such as round, square, hexagonal, or flat.

Common sizes range from small diameters like 1/8" or 3 mm to larger diameters exceeding 12" or 300 mm.

Lengths typically range from a few feet to several meters, depending on the application and customer requirements.

Chemical Composition:

Hastelloy C276 is primarily composed of nickel, molybdenum, chromium, and smaller amounts of other elements such as iron, tungsten, cobalt, manganese, carbon, silicon, vanadium, phosphorus, sulfur, and aluminum.

The typical chemical composition of Hastelloy C276 is approximately:

Nickel (Ni): 55%

Chromium (Cr): 15-17%

Molybdenum (Mo): 16-18%

Iron (Fe): 4-7%

Tungsten (W): 3-4%

Cobalt (Co): 2.5%

Manganese (Mn): 1%

Carbon (C): 0.01%

Silicon (Si): 0.08%

Vanadium (V): 0.35%

Phosphorus (P): 0.04%

Sulfur (S): 0.03%

Aluminum (Al): 0.02%

Q&A:

Q: What are the typical applications of ASTM/ASME SB 574 Hastelloy C276 UNS N10276 Bar?

A: Hastelloy C276 bars are commonly used in chemical processing, pulp and paper production, waste treatment, pollution control, marine engineering, and various industrial applications where corrosion resistance, high strength, and reliability are essential.

Q: What are the advantages of Hastelloy C276 bars over other materials?

A: Hastelloy C276 offers exceptional resistance to a wide range of corrosive environments, including strong oxidizing and reducing acids. It also provides excellent resistance to stress corrosion cracking, pitting, and crevice corrosion. Additionally, its high strength and toughness make it suitable for use in harsh environments.

Q: Can Hastelloy C276 bars be welded?

A: Yes, Hastelloy C276 bars can be welded using various welding techniques such as gas tungsten arc welding (GTAW), gas metal arc welding (GMAW), shielded metal arc welding (SMAW), and submerged arc welding (SAW). However, proper welding procedures and filler materials compatible with Hastelloy C276 should be used to maintain its corrosion resistance properties.

Q: Are there any limitations to the use of Hastelloy C276 bars?

A: While Hastelloy C276 offers excellent corrosion resistance in many environments, it may not be suitable for use in highly oxidizing environments containing strong oxidizing acids such as nitric acid or mixed acids with fluoride ions at high temperatures. Additionally,

Hastelloy C276 should not be used in applications involving exposure to reducing acids with low pH values, such as hydrochloric acid or sulfuric acid, at elevated temperatures. It's essential to consider the specific operating conditions and chemical environment when selecting materials for a particular application.

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