Stainless steel seamless pipes can withstand harsh and extreme environments, but suitable materials should be selected according to the environment! Below are detailed examples for everyone.
1. High temperature environment (up to 1300 ℃)
304 stainless steel seamless pipe can withstand temperatures between 750~860 ℃, 316 stainless steel seamless pipe can reach temperatures between 1200~1300 ℃, 310S stainless steel seamless pipe can work stably at temperatures between 1150~1260 ℃, and TP347H still has a tensile strength exceeding 304MPa at 750 ℃.
2. Ultra low temperature environment (as low as -196 ℃)
Austenitic stainless steel (such as 304, 316L) maintains toughness at -196 ℃ and is suitable for liquid nitrogen transportation; The impact toughness of ferritic stainless steel (such as 430) decreases significantly at low temperatures, and its performance needs to be improved through high-purity processes.
3. Strong corrosive environment
N08926 stainless steel seamless pipe can withstand 50% sulfuric acid, and its corrosion resistance is 5-8 times higher than 316L; 316L seamless stainless steel pipe containing molybdenum is resistant to chloride ion corrosion (such as seawater and salt spray).
4. High pressure and extreme stress environment
N06601 stainless steel seamless pipe has a fatigue life several times that of carbon steel and is suitable for aviation hydraulic systems; Special alloys such as TP347H stainless steel seamless pipes remain stable in sulfur-containing/chlorine media.
5. High concentration chloride ions
Choose molybdenum containing steel (such as 316L, N08926) to deal with pitting corrosion or stress corrosion cracking.
6. Long term high-temperature creep
Using niobium/titanium stabilized alloys (such as TP347H) to prevent slow deformation of the material.
7. Ultra thin wall requirements
Through precise control of cold rolling process, avoid processing vulnerability and high cost.
The seamless structure and alloy protection of stainless steel seamless pipes form a “double insurance” and are irreplaceable safety materials in fields such as energy, chemical, aerospace, etc.