Home > Stainless Steel > Stainless Steel 348 Pipe
Stainless Steel 348 Pipes refer to pipes manufactured from the stainless steel alloy designated as AISI 348 or UNS S34800. This alloy is a stabilized, columbium-bearing austenitic stainless steel that provides outstanding resistance to intergranular corrosion and oxidation at high temperatures. Stainless Steel 348 Pipes are frequently employed in high-temperature applications such as furnaces, heat exchangers, and thermal processing equipment, where withstanding corrosion and heat is essential. The inclusion of columbium serves to stabilize the material against sensitization and carbide precipitation during welding and exposure to high temperatures, making it well-suited for extended use in elevated temperature settings.
| Sizes: | 1/8″ to 24″ |
| ASTM A312 Steel grades: | TP304/304L/304H |
| ASTM A312 Schedules: | STD, XS, XXS, SCH5S, SCH10/10S, SCH20, SCH30, SCH40/40S, SCH60, SCH80/80S, SCH100, SCH120, SCH140, SCH160 |
| Standards: | ASTM A312, ASME SA312 |
| Lengths: | SRL and DRL 5meters up to 11meters available from Stock or Production. |
| Ends: | Plain/Bevelled |
| Element | Content (%) |
|---|---|
| Iron, Fe | 66 |
| Chromium, Cr | 19 |
| Nickel, Ni | 11 |
| Manganese, Mn | 2.0 |
| Silicon, Si | 1.0 |
| Nb + Ta | 0.8 |
| Cobalt, Co | 0.2 |
| Tantalum, Ta | 0.1 |
| Carbon, C | 0.080 |
| Phosphorous, P | 0.045 |
| Sulfur, S | 0.030 |
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 655 MPa | 95000 psi |
| Yield strength (@ strain 0.200%) | 275 MPa | 39900 psi |
| Izod impact | 120 – 160 J | 88.5 – 118 ft-lb |
| Charpy impact | 160 J | 118 ft-lb |
| Shear modulus (typical for steel) | 77.0 GPa | 11200 ksi |
| Elastic modulus | 190-210 GPa | 27557-30458 ksi |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation at break (in 50 mm) | 45% | 45% |
| Hardness, Brinell (converted from Rockwell B hardness) | 147 | 147 |
| Hardness, Knoop (converted from Rockwell B hardness) | 164 | 164 |
| Hardness, Rockwell B | 85 | 85 |
| Hardness, Vickers (converted from Rockwell B hardness) | 169 | 169 |
At Sumakhsteel, we are proud to be the largest supplier and manufacturer in the USA, delivering advanced solutions for every one of your piping requirements. With cutting-edge manufacturing facilities strategically situated in the USA, we hold an extensive inventory of more than 25,000 tons of top-quality materials kept ready in stock.
Reach out to us for a fast quote tailored to your requirement.
We supply these Stainless Steel 348 Pipes conforming to DIN, ISO, JIS or ANSI Standard.
Stainless Steel 348 Pipes serve applications as varied as the industries that use them, led chiefly by the aerospace, railway, construction and automotive industries along with petrochemical, nuclear, medical, Oil & Gas, Chemical, Pharmaceutical, Food & Beverage, Nuclear, Thermal Power plants, Paper and Pulp, marine and mining, etc.
Yes Stainless Steel 348 Pipes are also completely recyclable. Stainless steel is a remarkably sustainable material that can undergo recycling again and again without sacrificing its natural properties. Recycling Stainless Steel 348 Pipes aids in preserving natural resources, cutting energy usage, and lessening environmental impact. During the recycling process, the stainless steel scrap is melted down and reshaped into new items, such as pipes, without diminishing its quality or performance. As a result, Stainless Steel 348 Pipes support a circular economy by forming part of a closed-loop recycling system.
Yes, Stainless Steel 348 Pipes are extremely well-suited for high-temperature uses. The alloy’s makeup, featuring elements such as chromium, nickel, and columbium, delivers outstanding heat resistance and stability at elevated temperatures. Stainless Steel 348 Pipes can endure extreme heat without compromising their structural integrity or undergoing significant degradation, making them perfect for use in settings such as high-temperature furnaces, heat exchangers, thermal processing equipment, and aerospace components. Furthermore, the alloy’s resistance to intergranular corrosion and sensitization additionally boosts its performance under high-temperature conditions, making Stainless Steel 348 Pipes a dependable option for demanding applications.
Stainless Steel 348 Pipes may be prone to galvanic corrosion when they come into contact with unlike metals under specific conditions. Galvanic corrosion happens when two distinct metals touch in the presence of an electrolyte, causing the less noble metal to corrode more rapidly. Although Stainless Steel 348 resists corrosion, it can nonetheless undergo galvanic corrosion if paired with a more reactive metal like carbon steel or aluminum. Adequate insulation or applying suitable insulating materials can help reduce galvanic corrosion risks when Stainless Steel 348 Pipes are set up in systems containing dissimilar metals.
Routine inspection and upkeep are likewise vital to detect and resolve any indications of galvanic corrosion at an early stage, securing the durability and dependability of the piping system.
Stainless Steel 348 Pipes are usually not advised for transporting natural gas. Although they provide outstanding resistance to corrosion and elevated temperatures, they might not be the ideal option for natural gas applications because of possible issues with embrittlement and cracking under certain circumstances. For natural gas transmission and distribution systems, carbon steel pipes or particular stainless steel grades like 304 or 316L are generally favored, as they are engineered to satisfy the requirements and standards for gas transportation. These grades deliver solid mechanical properties and corrosion resistance specifically suited to gas pipeline applications, guaranteeing safe and dependable performance over the long term.
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