304 / 304L Stainless Steel

Description

With a lower carbon content (0.08% max), 304 is similar to 18-8 or 302, but with reduced strength. The low-carbon content makes 304 appropriate for welding operations, as it allows exposure in the carbide precipitation range of 800° F to 1500° F (427° C to 816° C) without normally required post-annealing processes. 304L is a variety with carbon content of 0.03% or less, which avoids intergranular corrosion in the as-welded state.

Design features

  • General corrosion resistance
  • Oxidation resistance to 1650° F (899° C) in continuous service and to 1500° F (816° C) in cyclic heating applications
  • Nonmagnetic and nonhardenable except by cold working
  • Appropriate in field working applications
  • Susceptible to chloride stress corrosion cracking

Applications

  • Food and dairy processing
  • Sanitary
  • Feedwater heaters
  • Heat exchangers and evaporators
Product Type Size Range Wall/Pressure Class
Seamless Pipe 1/8” through 20” 10S, 40S (Std.), 80S (XH), 120, 160, XXH
Welded Pipe 1/2” through 36” 5S, 10S, 40S (Std.), 80S (XH), 160, XXH
Butt Weld Fittings 1/2” through 36” 5S, 10S, 40S (Std.), 80S (XH), 160, XXH
Flanges 1/2” through 36” 150, 300, 600, 900, 1500, 2500
Pressure Fittings 1/8” through 4” 150 lb Bar, 2000, 3000, 6000
Swages 3/8” through 4” 40S (Std.), 80S (XH)
Outlets 1/4” through 2” 10S, 40S (Std.), 80S (XH)
Nipples 1/8” through 6” 40S (Std.), 80S (XH), 160
Valves 2” through 8” 150#, 300#, 800#

304/304L Chemical Composition %

C Cr Mn Ni P S Si
MAX   MAX   MAX MAX MAX
0.035 18.0-20.0 2.0 8.0-13.0 0.040 0.030 0.75

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

For more information about our products, please contact a representative!

Request a Quote

Questions?

Ask us about our products.

* Required fields.