Stainless Steel Hollow Pipe
UNS S31603 steel pipe is an improved ultra-low carbon Cr-Ni-Mo austenitic stainless steel, also known as AISI 316L stainless steel. It is improved on the basic AISI 316 stainless steel pipe and has excellent performance and a wide range of applications.
UNS S31603 stainless steel acid-resistant pipe has excellent corrosion resistance and performs well in certain applications with corrosive environments. Its acid resistance is outstanding in phosphoric acid, acetic acid and dilute hydrochloric acid solutions, and it also has good corrosion resistance in environments such as sulfuric acid. Additionally, it has a high resistance to stress corrosion cracking.
SS 316L Thick Wall Pipe has a lower carbon content than other stainless steels, which gives it better corrosion resistance in the welded parts. In addition, the addition of molybdenum improves the corrosion resistance of stainless steel, especially in acidic environments.
Stainless Steel UNS S31603 Pipes Equivalent Grades
| Grade | 316L | |
| UNS No | S31603 | |
| Old British | BS | 304S11 |
| En | 58E | |
| Euronorm | No | 1.4436 |
| Name | X5CrNiMo17-13-3 | |
| Swedish SS | 2348 | |
| Japanese JIS | SUS 316L | |
UNS S31603 Pipes Physical Properties
| Grade | UNS S31603 | |
|---|---|---|
| Density (kg/m3) | 8000 | |
| Elastic Modulus (GPa) | 193 | |
| Mean Coefficient of Thermal Expansion (m/m/0C) | 0-1000C | 15.9 |
| 0-3150C | 16.2 | |
| 0-5380C | 17.5 | |
| Thermal Conductivity (W/m.K) | at 1000C | 16.3 |
| at 5000C | 21.5 | |
| Specific Heat 0-1000C (J/kg.K) | 500 | |
| Electrical Resistivity (n.m) | 740 | |
Stainless Steel UNS S31603 Seamless Pipes
The mechanical properties of S31603 stainless steel pipe are also excellent. In the annealed state, its tensile strength and yield strength reach 70 ksi (approximately 485 MPa) and 25 ksi (approximately 170 MPa) respectively. In addition, UNS S31603 also has good ductility and impact toughness.
This stainless steel has a melting point between 1375-1400℃ (2500-2550℉) and a density of 8.0 g/cm3. Its thermal conductivity is 14.0-15.9 W/m·K, and its thermal expansion coefficient is 13.0-14.0×10-6/K.
In conclusion, S31603 Stainless Steel Round Pipe is a versatile material with excellent corrosion resistance and mechanical properties suitable for a wide range of applications including chemical, medical, food processing, marine and offshore engineering, etc.
Application Scenarios
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