317L stainless steel tubing is a low-carbon version of the standard 316 stainless steel tubing. This austenitic chromium-nickel alloy contains molybdenum, which gives it better corrosion resistance than 316 stainless steel tubing. While not as strong as other 300-series steels, 317L stainless steel tubing is still widely used in marine applications, chemical processing equipment, and brewing tanks.
Applications for 317L Stainless Steel Tubing
Due to its molybdenum content, 317L stainless steel tubing is more resistant to pitting and crevice corrosion than 316 stainless steel tubing. It’s also resistant to chloride stress cracking and has better weldability than other 300-series steels. As a result, 317L stainless steel tubing is often used in marine environments, chemical processing equipment, and brewing tanks. Some other common applications for317L stainless steel tubing include:
• Pipe fittings
• Flanges
• Pumps and valves
• Dyeing equipment
• Digesters
• Scrubbers
• Tanks and kettles
Chemical Composition of 317L Stainless Steel Tubing
The chemical composition of 317L stainless steel tubing includes:
• Carbon: 0.035% max
• Manganese: 2.00% max
• Phosphorus: 0.045% max
• Sulfur: 0.030% max
• Silicon: 1.00% max
• Chromium: 18.0-20.0%
• Nickel: 11.0-15.0%
• Molybdenum: 3.0-4.0%
317L stainless steel tubing is a low-carbon version of the standard 316 stainless steel tubing that contains molybdenum for better corrosion resistance than 316 SS tubing. While not as strong as other 300-series steels, 317L SS tubing is still widely used in marine applications, chemical processing equipment, and brewing tanks because of its excellent weldability and resistance to chloride stress cracking. If you’re looking for a versatile austenitic chromium-nickel alloy for your next project, consider using 317L stainless steel tubing!