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Hastelloy B3 Tubes are designed to withstand extreme temperature and pressure conditions, making them ideal for use in a wide range of industrial applications. Our Hastelloy B3 Pipes are expertly crafted to offer unparalleled durability and reliability.
We use only the best Nickel Alloy B3 material available to ensure that each tube is of top-notch quality, guaranteeing maximum performance and longevity. You can count on our Hastelloy Alloy B3 Tubes to deliver the results you need, each and every time.
Our extensive selection of Hastelloy Alloy B3 Tubes includes ASTM B622 UNS N10675 Seamless Tube and ASTM B474 UNS N10675 Welded Tube, providing you with plenty of options to suit your specific needs. And with our competitive prices, you'll get the best value for your investment.
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Alloy B3, also known as UNS N10675, exhibits exceptional resistance to hydrochloric acid at varying concentrations and temperatures. In addition to its effectiveness against hydrochloric acid, B3 alloy tubing demonstrates resistance to sulfuric acid, acetic acid, formic acid, phosphoric acid, and other non-oxidizing substances. The unique chemical composition of B3 tubing imparts remarkable thermal stability, surpassing that of Hastelloy B-2 alloy. The outstanding resistance of B3 UNS N10675 extends to pitting, stress corrosion cracking, as well as erosion along knife lines and heat-affected zones. ASTM B622 UNS N10675 seamless tubing finds extensive utilization in critical applications where corrosion resistance is of utmost importance, such as heat exchangers, condensers, reactors, and various equipment.
Alloy B3 UNS N10675 tube standard:
- The ASTM B622 Standard Specification deals with Seamless Nickel and Nickel-Cobalt Alloy Pipe and Tube. It sets the guidelines and requirements for manufacturing and testing these materials. The purpose of this standard is to ensure the quality and reliability of seamless pipes and tubes made of nickel and nickel-cobalt alloys.
Manufacturers and suppliers of these materials must comply with the requirements set out in the ASTM B622 specification to ensure that their products meet the applicable standards. The ASTM B622 standard covers requirements for chemical composition, mechanical properties, dimensions, tolerances, and other factors that affect the performance and safety of these materials.
The use of nickel and nickel-cobalt alloys is common in industries such as chemical processing, medical equipment, power generation, and aerospace, where it is essential to have reliable and high-quality materials. These alloys offer excellent resistance to corrosion and other types of wear and tear, making them highly valued in various applications.
In conclusion, the ASTM B622 Standard Specification is an essential document that outlines the parameters and requirements for seamless pipes and tubes made of nickel and nickel-cobalt alloys. It plays a vital role in ensuring the quality and reliability of these materials, which are used in critical applications across multiple industries.
- The ASTM B619 Standard Specification is specifically designed for welded pipes made from nickel and nickel-cobalt alloys. It outlines the requirements and characteristics that these pipes must meet. This specification sets the standards for the materials, dimensions, mechanical properties, and testing procedures of these pipes.
Welded pipes made from nickel and nickel-cobalt alloys are widely used in various industries due to their excellent corrosion resistance and high temperature strength. They are particularly suitable for applications involving highly corrosive environments, such as chemical processing, marine equipment, and power generation.
The ASTM B619 Standard Specification covers a wide range of pipe sizes and wall thicknesses, ensuring that these pipes can be tailored to meet specific project requirements. The material grades specified in this standard include nickel-molybdenum-chromium alloy, nickel-molybdenum alloy, nickel-chromium-iron-molybdenum alloy, and nickel-cobalt-molybdenum alloy.
This standard places emphasis on the manufacturing process and quality control of welded nickel and nickel-cobalt alloy pipes. It includes requirements for welding procedures, heat treatment, and nondestructive testing. The pipes must undergo proper testing to ensure they meet the specified mechanical and chemical requirements, such as tensile strength, yield strength, elongation, and chemical composition.
Compliance with the ASTM B619 Standard Specification is essential to ensure the quality and reliability of welded nickel and nickel-cobalt alloy pipes. By following this standard, manufacturers and suppliers can provide pipes that meet the highest industry standards and deliver exceptional performance in demanding applications.
- The standard specification ASTM B474 pertains to electric fusion welded nickel and nickel alloy pipe. It outlines the requirements and guidelines for the manufacturing and quality control of these pipes. The purpose of this specification is to ensure the reliability and durability of the welded pipes in various industries that utilize nickel and nickel alloys. Compliance with ASTM B474 is crucial to guarantee the performance and safety of these pipes in applications such as chemical processing, power generation, and aerospace engineering. This standard serves as a reference for manufacturers, suppliers, and end-users involved in the production, distribution, and utilization of electric fusion welded nickel and nickel alloy pipes.

Alloy B3 Chemical Composition
| Element | Content (%) |
| Nickel, Ni | 65 min |
| Molybdenum, Mo | 27-32 |
| Cobalt, Co | 3 max |
| Manganese, Mn | 3 max |
| Tungsten, W | 3 max |
| Iron, Fe | 1-3 |
| Chromium, Cr | 1-3 |
| Aluminum, Al | 0.5 max |
| Copper, Cu | 0.2 max |
| Niobium, Nb | 0.2 max |
| Tantalum, Ta | 0.2 max |
| Titanium, Ti | 0.2 max |
| Vanadium, V | 0.2 max |
| Zirconium, Zr | 0.1 max |
| Phosphorus, P | 0.03 max |
| Sulfur, S | 0.01 max |
| Carbon, C | 0.01 max |
Alloy B3 Tube Mechanical Properties
| Properties | Metric | Imperial |
| Tensile strength (0.125in.) | 0.88 GPa | 129 ksi |
| Yield strength (0.125in.) | 0.44 GPa | 64.5 ksi |
| Elongation at break (0.125in.) | 57.50% | 57.50% |
Hydrochloric Acid Corrosion Resistance
Alloy B3 (UNS N10675) is a nickel-molybdenum alloy known for its excellent resistance to a variety of corrosive environments including reducing acids, pitting and crevice corrosion, and stress corrosion cracking. It can resist the attack of hydrochloric acid even at high concentrations and high temperatures. Werkstoff 2.4600 is often used in applications requiring strong corrosion resistance, such as in the chemical processing, petrochemical, and pharmaceutical industries.
Stress Corrosion Resistance
Alloy B3 tube is a high-strength nickel molybdenum alloy designed to withstand harsh chemical environments. Hastelloy B3 has excellent corrosion and crack resistance under high-stress conditions, making it ideal for a range of applications.
Resistant to Pitting and Crevice Corrosion
One of the key properties of Alloy B3 2.4600 is its resistance to pitting and crevice corrosion, which makes it ideal for use in chemical processing plants, oil and gas refineries, and other corrosive environments. This is due to the high content of molybdenum and chromium in nickel alloy B3, which has excellent resistance to many corrosive agents.
Alloy B3 Manufacturing
Alloy B-3 (UNS N10675) pipe is usually manufactured to specific standards, such as ASTM B619 and ASTM B622, which outline the requirements for seamless and welded nickel-chromium-molybdenum-cobalt alloy pipe for general corrosion resistance and low or high corrosion. Alloy B3 pipe can be manufactured using a range of different production methods including hot rolling, cold drawing, and extrusion. Our alloy B3 tube supplier is capable of producing tubing in a wide range of sizes and thicknesses, making it a versatile choice for a variety of applications.
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