Yuhong Group Co.,Ltd
Yuhong Holding Group Co.,LTD
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ASTM B366 N10276 REDUCER
ASTM B366 N10276 Reducer is a reducing pipe made of Hastelloy C-276 (UNS N10276), which complies with ASTM B366 standard and is designed for extreme corrosive environments. It is made of nickel-molybdenum-chromium as the core component, has excellent resistance to hydrochloric acid and chloride stress corrosion and high temperature stability (applicable temperature -196°C to 400°C), and has a density of about 8.89 g/cm³.
The tube is formed by welding and needs to be subjected to radiographic inspection, pressure testing and pickling passivation treatment. The size complies with ASME B16.9/B16.11 standards and is widely used in chemical industry, marine engineering and flue gas desulfurization systems to ensure long-term safe operation in strong acid and chlorine-containing media.
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Hastelloy C276 | 8.89 g/cm3 | 1370 °C (2500 °F) | Psi – 1,15,000 , MPa – 790 | Psi – 52,000 , MPa – 355 | 40 % |
| Grade | C | Mn | Si | S | Co | Ni | Cr | Fe | Mo | P |
| C276 | 0.010 max | 1.00 max | 0.08 max | 0.03 max | 2.50 max | 50.99 min* | 14.50 – 16.50 | 4.00 – 7.00 | 15.00 – 17.00 | 0.04 max |
| STANDARD | WERKSTOFF NR. | UNS | JIS | GOST | EN | OR |
| Hastelloy C276 | 2.4819 | N10276 | NW 0276 | ХН65МВУ | NiMo16Cr15W | ЭП760 |
| Grade | North America | France | Germany | Japan | Russia | European | Russian | British | Other Names |
| Hastelloy C276 | UNS N10276 | - | WNR/DIN 2.4819 | JIS NW 0276 | GOST ХН65МВУ | EURONORM NiMo16Cr15W | OR ЭП760 | – | Alloy C276/ Inconel C276 |
Application
1.Chemical industry: used in strong acid (hydrochloric acid, sulfuric acid), organic acid and mixed acid medium delivery systems, such as reactors, heat exchangers and pipeline connections, to resist chloride stress corrosion cracking (SCC).
2.Environmental protection and flue gas desulfurization (FGD): treatment of sulfur-containing flue gas, wet chlorine gas and acidic wastewater systems, to withstand high temperature and wet corrosion environments.
3.Marine engineering: seawater desalination equipment, submarine pipelines and ship systems, to resist chloride ion corrosion and microbial erosion in seawater.
4.Pharmaceutical and food processing: high-purity medium delivery pipelines, to avoid metal ion contamination, while withstanding corrosion by detergents (such as hypochlorous acid).
5.Energy and oil and gas: acidic gas fields (including H₂S, CO₂) and refining equipment in oil and gas production, to solve corrosion problems under high temperature and high pressure.
