
347 Stainless Steel Flanged Elbow
1. Standard: ASTM A182, ASTM A403
2. Flange size: 1/2”-24”
3. Fitting size: 1/2”- 48”
4. Service: Customized Pre-Fabrication of Pipe Spools
347 Stainless Steel Flanged Elbow is a Pre-fabrication of Pipe Spools. SS 347 elbows are specially designed to connect pipes at an angle, changing the direction of fluid flow. When elbows are welded together with ASTM A182 F347 stainless steel flanges, they can be used in oil and gas pipelines. We are a stainless steel supplier with 15+ export experience, contact us for more information and free quotes!
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ASTM A182: Standard Specification for Forged or Rolled Alloy-Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service
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ASTM A403: ASTM A403 / A403M Standard Specification for Wrought Austenitic Stainless Steel Piping Fitting
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ASTM A815:Standard Specification for Wrought Ferritic, Ferritic/Austenitic, and Martensitic Stainless Steel Piping Fittings

AISI 347 Stainless Steel Composition
| Element | 347 |
| Carbon | 0.08 |
| Chromium | 17.0-19.0 |
| Nickel | 9.0-13.0 |
| Manganese | 2.00 |
| Silicon | 0.75 |
| Phosphorus | 0.045 |
| Sulfur | 0.030 |
| Niobium | 10 x C min / 1.00 max |
Pre-fabrication of Pipe Spools Advantages
- Prefabrication of S34700 stainless steel flange elbows involves pre-cutting, pre-measuring, welding, packaging, and then shipping them to the construction site for installation.
- The advantages are faster installation, improved quality control, and less on-site welding and cutting, resulting in a more efficient construction process.
Pipe Spool Fabrication Considerations
Properly clean 1.4550 stainless steel elbows and flanges and prepare the surface, and select compatible filler metals.
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