Yuhong Group Co.,Ltd
| Size | 1/8"NB TO 48"NB IN |
| Bending Radius | R=1D 2D 3D 5D 6D 8D 10D Custom |
| Standard | ASTM B366 / ASME SB366 |
| Product Name | Return Bends |
| Packaging Details | PLY-WOODEN CASE OR PALLET |
| Shape | 180° Return Bends |
| Wall Thickness | Schedule 5S to Schedule XXS |
| High Light | ASTM B366 Hastelloy C22 180° SR Return Bends, Nickel Alloy Pipe Fittings |
| Materials | C22 / UNS N06022/ 2.4602 |
| Payment Terms | L/C,T/T |
| Brand Name | YUHONG |
| Certification | ABS, BV, LR, DNV-GL, KR, CCS , TS, GOST, CCS, TUV, PED |
| Place of Origin | CHINA |
| Model Number | ASTM B366 Hastelloy C22 180° SR Return Bends |
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Product Specification
| Size | 1/8"NB TO 48"NB IN | Bending Radius | R=1D 2D 3D 5D 6D 8D 10D Custom |
| Standard | ASTM B366 / ASME SB366 | Product Name | Return Bends |
| Packaging Details | PLY-WOODEN CASE OR PALLET | Shape | 180° Return Bends |
| Wall Thickness | Schedule 5S to Schedule XXS | High Light | ASTM B366 Hastelloy C22 180° SR Return Bends, Nickel Alloy Pipe Fittings |
| Materials | C22 / UNS N06022/ 2.4602 | Payment Terms | L/C,T/T |
| Brand Name | YUHONG | Certification | ABS, BV, LR, DNV-GL, KR, CCS , TS, GOST, CCS, TUV, PED |
| Place of Origin | CHINA | Model Number | ASTM B366 Hastelloy C22 180° SR Return Bends |
| High Light | Hastelloy C22 pipe fittings ，ASTM B366 steel return bends ，DIN 2.4602 180° SR fittings | ||
ASTM B366 Hastelloy C22 / UNS N06022 / DIN 2.4602 Nickel Alloy Return Bends 180° SR
ASTM B366 Hastelloy C22 Return Bend (UNS N06022 / DIN 2.4602) refers to a pre-fabricated, 180-degree pipe fitting designed to completely reverse the direction of fluid flow. It is made from a nickel-chromium-molybdenum-tungsten alloy known as Hastelloy C22 and complies with the ASTM B366 manufacturing standard. Unlike a standard long-radius 180° elbow, a "return bend" usually features a compact, tight radius—typically one or one-and-a-half times the nominal pipe diameter (1D or 1.5D). This compact design makes it ideal for use in heat exchanger tube bundles, steam tracing lines, or confined piping systems. The fitting provides outstanding resistance to pitting, crevice corrosion, and chloride-induced stress corrosion cracking, especially in harsh chemical environments such as wet chlorine, hydrochloric acid, or hot sulfuric acid.
Equivalent Grades of ASTM B366 Hastelloy C22 Return Bends UNS N06022 / DIN 2.4602 Nickel Alloy Pipe Fittings
| STANDARD | WERKSTOFF NR. | UNS | JIS | GOST | EN |
| Hastelloy C22 | 2.4602 | N06022 | NW 6022 | – | NiCr21Mo14W |
Chemical Composition of ASTM B366 Hastelloy C22 Return Bends UNS N06022 / DIN 2.4602 Nickel Alloy Pipe Fittings
Grade | C | Mn | Si | Cu | S | Fe | Ni | Cr | P | Mo |
Hastelloy C22 | 0.010 max | 0.50 max | 0.08 max | 0.50 max | 0.02 | 2.00 – 6.00 | 50.015 min | 20.00 – 22.50 | 0.02 max | 12.50 – 14.50 |
Mechanical Properties of ASTM B366 Hastelloy C22 Return Bends UNS N06022 / DIN 2.4602 Nickel Alloy Pipe Fittings
Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
8.69 g/cm3 | 1399 °C (2550 °F) | Psi – 1,00,000 , MPa – 690 | Psi – 45000 , MPa – 310 | 45 % |
Applications
Shell and tube heat exchangers: U-tube bundles for corrosive fluids (e.g., H₂SO₄ coolers).
Fired heaters (furnaces): Pigtail or serpentine coils in hydrochloric acid or chlorine service.
Pickling lines (steel industry): Hot mixed acid (HNO₃ + HF) return loops.
Offshore chemical injection skids: Compact 180° bends for corrosion inhibitor lines.
Nuclear reprocessing plants: Where oxidizing nitric acid containing fluorides is present.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2007
Total Annual:
50M-70M
Employee Number:
50~850
Ecer Certification：
Verified Supplier
Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou... Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...
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