What is the difference between 316 and 316l

As a popular stainless steel grade, stainless steel has many variants like L, H, F, and N, which come in subtle differences. Check our international standards conversion table for different representation methods for various metals.

Grade is a popular austenitic stainless steel alloy and the second most widely used grade after stainless steel Due to the addition of Mo, its corrosion resistance, resistance to acids, alkalis, and chloride pitting are particularly good.

When treated with cold-roll, it shows good gloss and beautiful appearance. Due to its excellent corrosion resistance in atmospheric environments and more resistant to corrosive media than , alloy is often used to produce equipment and parts used in seawater boat fittings , chemical industry laboratory benches, containers , dye, paper making, production machinery of oxalic acid and fertilizer.

Even though and L have high similarity, their prices are approximately the same, we can also differentiate them in the composition, mechanical properties, and other aspects. This structure is achieved via heat treatment at very high temperatures followed by quenching—a rapid cooling process locking the structural characteristics in place. Austenitic formulas are stronger than martensitic or ferritic steels. Ferritic steels are magnetic, have a low carbon content and are less corrosion-resistant.

With chromium and nickel alloys, is resistant to many corrosion attacks. That addition makes it much more corrosion resistant. Like , the formula does not require post-weld annealing. The only difference is the carbon content. See how matching materials to processes boosts performance and increases safety in your operations.

Some manufacturing processes feature strict cleanliness and purity requirements that dictate the kind of piping that can be used. Such is the case in sanitary high-purity pharmaceutical processes or semiconductor manufacturing. In pharmaceutical settings, process piping must be thoroughly cleaned after each batch is made. Electropolished L stainless steel is preferred in this setting.

Electropolishing produces a much smoother surface with reduced risk of trapping remnant materials from prior batches during cleaning. Hello, I need to know which one is cheaper in price, or L, please help me with this information. Hi Shaji. But there seems to be no particular downside to substituting L for , so I am seeing a trend where steel warehouses seem to be stocking only L in some shapes, in which case you get the same thing at the same price whichever you specify.

What happens if I weld a pipe to a L fitting? Do I increase the chance of corrosion? Hi Nasari. To my knowledge the corrosion situation would be no worse than a pipe welded to a fitting. Hi Doods. Milt has told us that " has a carbon content of 0. Dear All, I have different question regarding the S.

I want to use this material for tablet pharma handling. Sometimes we face problem of tablets getting black spot. So which material is good to avoid black spot on tablets? Dattatraya, and L are nearly identical. It's not about which material you have, but how clean that surface is. I have been looking for a Chinese contractor to build for me a roof of sqm made of SSL arches, columns and tendons. They would not specify why. Could somebody help me understand why?

Hi Isack. The first possibility is that the components for example corrugated sheet roofing and hollow tubing columns may simply be unavailable in SSL. Other possible problems include difficulty in fabricating: SS3xx work hardens, so they may not be able to cut it and drill it with the tools they customarily use. If welding is required, their welders may not be experienced with this material.

As a course of action I suggest you do some internet research into what shapes are available and unavailable so there is a workable design, and then consider trying to retain a construction contractor experienced in working with this material rather than general roofing contractors.

Good luck. Dear all I am working in a wire drawing facility. We buy the austenitic steel rods and draw to required dimensions. The usual process route is: 1. Immersing wire rod into a lubricant carrier bath 2. Pre-drawing with a lubricant 3. Immersion in lubricant 8.