Stainless Steel 304/304L in bar, plate, and tube
SPECIFICATIONS: GRADE STAINLESS STEEL 304/304L, AISI 304, UNS S30400, UNS S30403
Castle Metals distributes a wide range of Stainless 304 in bar, plate and tube from our distribution centers in the U.S., Canada, Mexico, Shanghai, Singapore, France, and the U.K. When customers confer with us on stainless 304, sometimes they tell us they are exasperated with inventory accuracy. Should we decide that custom bar codes could simplify your inbound material process, we will figure out the best way to configure the solution.
Stainless Steel 304 is the most widely used stainless steel grade. It is a chromium-nickel austenitic stainless steel with relatively low carbon content and somewhat higher chromium and nickel than AISI types 301 and 302. Grade 304 is very ductile when in an annealed condition. It has good elevated temperature properties as well as good toughness at low temperatures. It is well suited for welding and where the finished product must resist the more severe forms of corrosion.
Stainless Steel 304L is a very low carbon austenitic chromium nickel steel with corrosion similar to type 304 but with superior resistance to intergranular carbide precipitation during welding or stress relieving.
Plate Properties
Grade 304 Plate Properties
GRADE | SHAPE | THICKNES | SPECIFICATION |
304 | Plate | 3/16" - 4-1/2" | AMS 5513 / ASTM A-240 |
304L | Plate | 3/16" - 4-1/2" | AMS 5511 / ASTM A-240 |
For more information, see Carbon, Alloy and Stainless Steel Plate Quick Guide
Chemistry(range or Maximum in %)
Chemistry (range or maximum in %)
grade | c | mn | p | s | si | ni | cr | other |
304 | 0.08 | 2.00 | 0.045 | 0.03 | 0.75 | 8.00/10.50 | 18.00/20.00 | N 0.10 MAX |
304L (Low Carbon) |
0.03 | 2.00 | 0.045 | 0.03 | 0.75 | 8.00/12.00 | 18.00/20.00 | N 0.10 MAX |