Lecong Stainless stands out as a top manufacturer and supplier based in Da Nang, Vietnam, specializing in high-quality Stainless Steel 347 Pipes. These pipes are known for their exceptional corrosion resistance, durability, and ability to perform well at high temperatures. Stainless Steel 347 is a titanium-stabilized austenitic stainless steel, crafted specifically to withstand intergranular corrosion, especially after welding and during prolonged exposure to elevated temperatures. Each pipe is meticulously manufactured to meet international standards, making them ideal for critical applications in power generation, chemical processing, petrochemical plants, and other industries where reliability and strength are paramount.
The composition of Stainless Steel 347 Pipes includes iron, chromium (17–19%), nickel (9–13%), and titanium for stabilization, along with manganese, silicon, and carefully controlled carbon levels. The addition of titanium helps prevent carbide precipitation during welding, enhancing corrosion resistance and prolonging service life. These pipes boast impressive mechanical properties, including a tensile strength ranging from 515 to 750 MPa, yield strength between 205 and 275 MPa, and excellent resistance to creep and oxidation at temperatures up to 700°C. Thanks to their austenitic microstructure, they offer toughness, dimensional stability, and reliable performance even in challenging environments.
| Standard | ASTM A312, A358 / ASME SA312, SA358 |
| Outside Diameter | 6.00 mm OD up to 914.4 mm OD, Sizes up to 24″ NB available Ex-stock, OD Size Steel Tubes available Ex-stock |
| Thickness | 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
| Type | Seamless / ERW / Welded / Fabricated Pipes |
| Form | Round, Square, Rectangular, Oval, Hydraulic Etc |
| Length | Single Random, Double Random & Required Length |
| End | Plain End, Beveled End, Treaded |
| Outside Finish | 2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Fe |
| SS 347 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 18.00 – 20.00 | 3.00 – 4.00 | 11.00 – 15.00 | 57.845 min |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1454 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
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We assures best quality Stainless Steel 347 Pipes through high level testing and certification. Each pipe is tested with hydrostatic, ultrasonic and chemical composition testing to assure strength and durability according to the market specifications. Being ISO 9001:2015, ASTM A312, and other international standard certified pipes will ensure the desired reliability, anti-corrosive qualities, and great performance.
SS 347 seamless pipe is a high-quality, stainless steel pipe made from alloy 347. It offers excellent resistance to high temperatures and corrosion, suitable for aerospace, chemical, and industrial applications.
SS 347 welded pipe is a stainless steel pipe made from alloy 347, featuring excellent resistance to corrosion and high temperatures. Ideal for applications in aerospace, chemical processing, and industrial settings.
SS 347 ERW (Electric Resistance Welded) pipe is a stainless steel pipe made from alloy 347. It offers good resistance to corrosion and high temperatures, suitable for various industrial applications.
SS 347 EFW (Electric Fusion Welded) pipe is made from stainless steel alloy 347, offering superior resistance to high temperatures and corrosion. It’s ideal for demanding applications in industries like aerospace and chemical processing.
SS 347 rectangular pipe is a stainless steel pipe made from alloy 347, providing excellent resistance to high temperatures and corrosion. It’s used in structural and industrial applications requiring strength and durability.
SS 347 square pipe is a stainless steel pipe made from alloy 347, offering robust resistance to high temperatures and corrosion. Ideal for structural and industrial applications requiring strength and durability.
Stainless Steel 347 Pipes are widely utilized in industries that demand strong piping solutions capable of withstanding heat and corrosion. They find extensive use in boilers, heat exchangers, pressure vessels, and reactor piping. In the chemical and petrochemical sectors, these pipes are essential for process lines, storage tanks, and high-pressure systems that come into contact with aggressive chemicals. Their high-temperature strength also makes them suitable for applications in aerospace, marine, and power generation. Furthermore, Stainless Steel 347 Pipes are employed in food processing and pharmaceutical equipment, where hygiene and durability are crucial. Their strength, corrosion resistance, and stability make them a go-to choice for long-lasting industrial piping solutions.
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