STM A358 TP 347 stainless steel EFW (Electric Fusion Welded) pipe is a specific type of pipe designed for various industrial applications that require resistance to high temperatures and corrosion. ASTM A358 is a standard specification for electric-fusion-welded austenitic chromium-nickel stainless steel pipe for high-temperature service, and TP 347 refers to the grade of stainless steel being used. Stainless steel grade 347 is a stabilized austenitic stainless steel alloy that contains elements such as niobium (columbium) and tantalum. These stabilizing elements help to prevent sensitization and intergranular corrosion, making it well-suited for applications involving elevated temperatures, such as in heat exchangers, boiler tubes, and other high-temperature environments.
The Electric Fusion Welding (EFW) process involves joining stainless steel plates or strips by applying heat generated by an electric arc and forming a welded joint. This process ensures strong and durable welds, suitable for applications requiring reliability under demanding conditions. "The Metal Tubular" is a company that provides metal tubular products, including ASTM A358 TP 347 stainless steel EFW pipes. As a supplier, they offer a range of stainless steel pipes and tubes that meet industry standards and can be used in various industrial sectors.
It's important to contact the supplier directly for specific details about product availability, dimensions, and other relevant information. ASTM A358 TP 347 stainless steel EFW pipe is a specialized stainless steel pipe designed for high-temperature applications, utilizing the Electric Fusion Welding process for strong and reliable joints. "The Metal Tubular" is a supplier that offers these types of pipes for industrial use.
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Specification:
| Specification | Description |
| Standard | ASTM A358 |
| Grade | TP 347 |
| Material Type | Austenitic Chromium-Nickel Stainless Steel |
| Manufacturing Method | Electric Fusion Welding (EFW) |
| Size Range | Nominal Diameter: 1/8" (6.35 mm) to 48" (1219 mm) |
| Wall Thickness | Schedule 5S to Schedule XXS |
| Temperature Range | High-temperature applications |
| Corrosion Resistance | Excellent resistance to corrosion |
| Stabilizing Elements | Niobium (Columbium) and Tantalum |
| Applications | Heat Exchangers, Boiler Tubes, High-Temperature |
| Industrial Environments | null |
Chemical Composition of ASTM A358 TP 347 STAINLESS STEEL EFW PIPE
| Element | Composition Range (%) |
| Carbon (C) | 0.08 max |
| Silicon (Si) | 0.75 max |
| Manganese (Mn) | 2.00 max |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.030 max |
| Chromium (Cr) | 17.00 - 20.00 |
| Nickel (Ni) | 9.00 - 13.00 |
| Niobium (Nb) | 10 x C min - 1.00 max |
| Tantalum (Ta) | 8 x C min - 1.00 max |
Mechanical Properties of ASTM A358 TP 347 STAINLESS STEEL EFW PIPE
| Property | Value |
| Tensile Strength | 75 ksi (515 MPa) min |
| Yield Strength | 30 ksi (205 MPa) min |
| Elongation in 2 inches (50mm) | 35% min |
| Hardness | Brinell: 201 max |
| Rockwell B: 95 max | null |
Advantages of ASTM A358 TP 347 STAINLESS STEEL EFW PIPE
- Good general corrosion resistance and high strength
- Good sulfide stress corrosion resistance
- Resistance to chloride pitting and crevice corrosion
- Higher resistance to chloride stress corrosion cracking
- Easy to weld and conform
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Applications Industry
| Pharmaceutical Equipment | Chemical Equipment |
| Sea Water Equipment | Heat Exchangers |
| Heat Exchangers | Gas Processing |
| Condensers | Specialty Chemicals |
| Pulp and Paper Industry | Pharmaceuticals |
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