304 Vs 316
Alloys are usually added to the steel to improve the properties required in stainless steel products. The sea-grade stainless steel, type 316, is resistant to certain types of interactions. 316 L, F, N, H and many other 316 stainless steel types. Each one has different characteristics than the other.
Shared Qualities by Type 316 and 316L Stainless Steel
Although similar to Type 304, Type 316 and 316L have better corrosion resistance and are stronger at high temperatures.
At the same time they can not be hardened by heat treatment and can be easily created and withdrawn.
Annealing 316 and 316L stainless steels require heating between 1900-2100 ° F (1038-1149 ° C) before quick extinguishing.
Differentiation of Type 316 and 316L Steel
316 stainless steel has more carbon than 316L. It will be easier to remember from here because L’means “low” or “low”. However, despite less carbon, the 316L contains many similar features with almost 316 in every direction. The cost is very similar and both are good choices for durable, corrosion resistant and high stress situations.
However, the 316L is a better choice for a project that requires a lot of resources. The reason for this is that 316 is more sensitive to the origin of 316L (but 316 can be tempered to resist the decay of resources). The 316L is also an excellent stainless steel for high temperature and high corrosion applications, so it is so popular for use in construction and marine projects.
Neither the 316 nor the 316L is the cheapest option (304 and 304L are similar but lower priced). And the most durable option is also better for general corrosion resistance (317 and 317L, due to the higher molybdenum content).
What are the Properties of Type 316 Steels?
Type 316 is an austenitic chrome-nickel stainless steel containing 2% and 3 molybdenum.
Molybdenum content enhances corrosion resistance, increases chloride resistance and improves strength at high temperatures.
Type 316 grade stainless steel is particularly effective in acidic environments. This steel quality is effective against corrosion caused by sulfuric, hydrochloric, acetic, formic and tartaric acids as well as acid sulphates and alkali chlorides.
How to Use Type 316 Steel
Common uses for 316 stainless steel include exhaust manifolds, oven parts, heat exchangers, jet engine parts, pharmaceutical and photographic equipment, valve and pump parts, chemical processing equipment, tanks, evaporators, paper papers, paper and textile processing equipment and marine environments all exposed parts.
What are Type 316L Steel Qualities?
It is an extra low carbon version of 316L stainless steel type 316 steel alloy. The low carbon content at 316L is the least damaging to the deposition of harmful carbides as a result of the source. As a result, 316L is used when welding is required to ensure maximum corrosion resistance.
Physical Properties of Type 316 Steels
Density: 0.799 g / cm3
Electrical Resistance: 74 microhm-cm (20C)
Specific Heat: 0.50 kJ / kg-K (0-100 ° C)
Thermal Conductivity: 16,2 W / m-k (100 ° C)
Elasticity Module (MPa): 193 x 103 at tension
Melting Point: 2500-2550 ° F (1371-1399 ° C)
Type 316 and 316L Stainless Steel Composition:
Below is a breakdown of the percentage of various elements used to make the 316L and 316L stainless steel:
|Element||Type 316 (%)||Type 316L (%)|
|Carbon||0.08 max.||0.03 max.|
|Manganese||2.00 max.||2.00 max.|
|Phosphorus||0.045 max.||0.045 max.|
|Sulfur||0.03 max.||0.03 max.|
|Silicone||0.75 max.||0.75 max.|
|Nitrogen||0.10 max.||0.10 max.|