304 VS 304L Stainless Steel Properties The following tables summarize 304 vs 304L stainless steel properties, including physical and mechanical properties. Other advantages are its resistance to oxidation, excellent formability, ease of fabrication and cleaning, excellent strength to weight ratio and good toughness at cryogenic temperatures.įor severely corrosive environments,the lower content of Type 304L is preferred because of its greater immunity to intergranular corrosion.ASTM A493: Standard Specification for Stainless Steel Wire and Wire Rods for Cold Heading and Cold ForgingĪSTM A473: Standard Specification for Stainless Steel ForgingsĪSTM A479: Standard Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure VesselsĪSTM A666: Standard Specification for Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat BarĪSTM A182: Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature ServiceĪSTM A276: Standard Specification for Stainless Steel Bars and ShapesĬreep-Resistant Steels, Fujio Abe et al. The table below gives 304L chemical composition, the maximum carbon content is 0.03, while 304 is max 0.08, other than that, the other composition are the same. 420 stainless steel contains 12-14 chromium and 0.12-0. The main difference between 420 and 304 stainless steel is their chemical composition. Note: Maximum, unless range (Min-Max) or minimum () is indicated. The 18/8 designation refers to the composition of. Difference Between 420 Stainless Steel and 304 Composition. The following table lists the chemical composition of stainless steel alloys, including austenitic SS 304, 304L 316, 316L, 321, 303, 302, 301, 904L, 201, etc., martensitic SS 440A, 440B, 440C, 420 etc., ferritic SS 430, duplex stainless steel 2205, 2507, 329, etc. Uses include architectural mouldings and trim, welded components of chemical, textile, paper, pharmaceutical and chemical industry processing equipment. 304 stainless steel is a type of stainless steel alloy that contains 18 chromium and 8 nickel. High strength, excellent corrosion resistance and minimized carbon content make Alloy 304 and 304L Stainless Steels useful for applications where welding is required. Typical composition ranges for 304-grade stainless steel Mechanical Properties Table 2. What is 304 Stainless Steel and Where Is It Used As the most widely used of all stainless steel, 304 stainless steel is most notably present in industrial applications and kitchen equipment. This is a uniquely well-balanced combination that produces a number of desirable material qualities. Nickel amounts to about 8 and Chromium accounts for about 18. This name has been derived from the composition of Chromium and Nickel elements present in the alloy. Microns and Microinches Conversion FactorsĪlloys 304 (S30400) and 304L (S30403) stainless steels are variations of the 18 percent chromium – 8 percent nickel austenitic alloy, the most familiar and most frequently used alloy in the stainless steel family. The defining features of 304 stainless steel are its inclusion of at least 18 percent chromium and 8 percent nickel, which is why it’s also known as 18/8 steel. Composition AISI 304 is also known as 18/8 Stainless steel.This grade of stainless steel features the following chemical composition: Iron Balance Carbon 0.0 0.07 Chromium 17.50 19.50 Manganese 0.0 2. It generally appears in kitchen equipment and industrial applications. COMMERCIALLY PURE (CP) TITANIUM - GRADE 2 What is 304 stainless steel Type 304 stainless steel is the most widely used of all stainless steel grades.
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