Hastelloy B2 Welded Pipe UNS N10665
As a leading supplier and manufacturer in China, GNEE Steel provides cost-effective nickel-based alloy products.
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Hastelloy B2 welded pipes are commonly used in numerous applications where corrosion resistance is critical, such as chemical processing, oil and gas, pharmaceuticals, and marine industries. The welded tube form offers several advantages, including ease of fabrication, flexibility in design, and cost-effectiveness in manufacturing processes. The welding process creates seamless and continuous tubes, ensures a strong and reliable connection, and minimizes the risk of leaks or failure in corrosive environments. Moreover, using Hastelloy B2 welded tubes provides improved structural integrity, enabling them to withstand high-pressure conditions, extreme temperatures, and corrosive media with exceptional performance and longevity.
Hastelloy B-2 Grades and standards:
DIN W.Nr.2.461 NiMo28 / ASTM / ASME UNS N10665
| Grades and standards: | Material Grade | Specifications | |||||||
| Chemical composition | Pipe | Sheet | Bar | Strip | Wire | Forging | |||
| Seamless | Welded pipe | ||||||||
|
Germany DIN VdTÜV |
W.Nr.2.461 NiMo28
|
17744 436 |
17751 | 17751 |
17750 436 |
17752 436 |
17750 |
436 |
|
|
France AFNOR |
NiMo28
|
||||||||
|
United Kingdom BS |
|||||||||
|
United States ASTM ASME |
UNS N10665
|
B622 SB622 |
B619/626 SB619/626 |
B333 SB333 |
B335 SB335 |
B333 SB333 |
|||
| ISO | NiMo28 | 9722 | 6207 | 6208 | 9723 | 6208 | 9724 | 9725 | |
Hastelloy B-2 Chemical composition:
| Ni | Cr | Fe | C | Mn | Si | Cu | Mo | Co | P | S | |
| Min | Margin | 0.4 | 1.6 | 26.0 | |||||||
| Maximum | 0.7 | 2.0 | 0.01 | 1.0 | 0.08 | 0.5 | 30.0 | 1.0 | 0.02 | 0.01 |

Hastelloy B-2 It has the following features:
● Control of iron and chromium in the minimum content, prevent the generation of β phase Ni4Mo.
● The reducing environment of excellent corrosion resistance.
● Excellent resistance to moderate concentrations of sulfuric acid and a number of non-oxidizing acid corrosion.
● Good resistance to chloride stress corrosion cracking resistance reduction (SCC).
● Excellent corrosion resistant ability of various organic acids
Application of ASTM B619 UNS N10665 Hastelloy B2 Welded Pipe
1. Pipe and Tubes for petrochemical industry
2. Pharmaceutical industry
3. Food industry
4. Aviation and aerospace industry
5. Architectural decoration industry
5. Oil and Gas Pipeline industry
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