304 Stainless Steel Bar
304L and 304 stainless steel bar are austenitic alloys. These alloys are the most familiar and most frequently used alloys in the stainless steel family. The L in 304/L refers to a lower carbon content to allow for greater corrosion protection when welding.
Applications of 304 Stainless Steel Bar:
Available shapes: Hexes, Rounds, Square
Specifications: ASTM A276, ASTM A479, ASME SA479 & AMS 5639.
Typical Chemical Properties
|Tensile Strength , psi||75,000||70,000|
|Yield Strength, psi||30,000||25,000|
|Hardness||Rb 92 max||Rb 92 max|
|Carbon( C)||.08 max||0.03 max|
|Manganese (Mn)||2.00 max||2.00 max|
|Nickel ( Ni)||8.0 – 10.50||8.0 – 12.00|
|Phosphorus (P)||.045 max||.045 max|
|Sulphur (S)||.030 max||.030 max|
|Silicon (Si)||0.75 max||0.75 max|
Austenitic steels have austenite as their primary phase (face centered cubic crystal). These are alloys containing chromium and nickel (sometimes manganese and nitrogen), structured around the Type 302 composition of iron, 18% chromium, and 8% nickel. Austenitic steels are not hardenable by heat treatment. The most familiar stainless steel is probably Type 304, sometimes called T304 or simply 304 stainless steel bar. Type 304 surgical stainless steel is austenitic steel containing 18-20% chromium and 8-10% nickel.