YUHONG HOLDING GROUP CO., LTD
| Payment Terms | TT,LC |
| Supply Ability | According to Clients' requirements |
| Delivery Time | Generally within 30 Days |
| Packaging Details | Ply-wooden Cases/Pallets |
| Product Name | 180 Degree Return Bend/180 Degree Elbow |
| Specification | ASTM A403 |
| Material | WP317-S |
| Radius | LR or SR (Depend on Customer's Requirements) |
| Surface | Rolling Sand or Sand Blasting |
| Test | Size Inspection, NDE Test... |
| Size Standard | ASME B16.9 |
| Application | Chemical Processing Industry; Power Generation; Oil & Gas Industry; Heat Exchangers... |
| Brand Name | Yuhong |
| Model Number | ASTM A403 WP317-S |
| Certification | ABS, BV, DNV, CCS, LR |
| Place of Origin | China |
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Product Specification
| Payment Terms | TT,LC | Supply Ability | According to Clients' requirements |
| Delivery Time | Generally within 30 Days | Packaging Details | Ply-wooden Cases/Pallets |
| Product Name | 180 Degree Return Bend/180 Degree Elbow | Specification | ASTM A403 |
| Material | WP317-S | Radius | LR or SR (Depend on Customer's Requirements) |
| Surface | Rolling Sand or Sand Blasting | Test | Size Inspection, NDE Test... |
| Size Standard | ASME B16.9 | Application | Chemical Processing Industry; Power Generation; Oil & Gas Industry; Heat Exchangers... |
| Brand Name | Yuhong | Model Number | ASTM A403 WP317-S |
| Certification | ABS, BV, DNV, CCS, LR | Place of Origin | China |
| High Light | ASTM A403 WP317-S return bend ，180 degree return bend for boilers ，heat exchanger return bend with warranty | ||
ASTM A403 WP317-S 180 Degree Return Bend SR For Power Generation Boilers&Heat Exchangers
A403 WP317-S 180° Return Bend is a seamless, butt-weld stainless steel pipe fitting designed to reverse fluid flow by 180° (U-bend shape), fully compliant with ASTM A403/A403M material spec, ASME B16.9 dimensions, and Class S (seamless, no mandatory NDE beyond standard checks) requirements.
1. The material: ASTM A403 WP317-S
(1). Chemical Composition of ASTM A403 WP317
The table below outlines the required chemical composition for WP317 stainless steel.
| Element | Composition (%) |
| Carbon (C) | 0.08 max |
| Manganese (Mn) | 2.00 max |
| Silicon (Si) | 1.00 max |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.030 max |
| Chromium (Cr) | 18.00 – 20.00 |
| Molybdenum (Mo) | 3.00 – 4.00 |
| Nickel (Ni) | 11.00 – 15.00 |
| Iron (Fe) | Balance (approx. 57.8 min) |
(2). Mechanical Properties of ASTM A403 WP317
| Property | Value |
| Tensile Strength | 515 MPa (min) / 75,000 psi (min) |
| Yield Strength (0.2% Offset) | 205 MPa (min) / 30,000 psi (min) |
| Elongation | 35% (min) -1-2 / 40% (min) -3 |
| Density | 7.9 - 8.0 g/cm³ |
| Melting Point | ~1400 °C (~2550 °F) |
2.180° Return Bend:
U-shaped fitting where two ends are parallel and opposite; available as Long Radius (LR, R=1.5D) or Short Radius (SR, R=1.0D). It replaces two 90° elbows for a compact flow reversal.
3. Key specs & features
Main Advantages & Applications of A403 WP317 S 180° Return Bend
1. Main Advantages
2. Primary Applications
Company Details
Business Type:
Manufacturer,Importer,Exporter,Trading Company,Seller,Other
Year Established:
1990
Total Annual:
50M-70M
Employee Number:
50~800
Ecer Certification：
Verified Supplier
Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n... Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n...
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