304 Polished Stainless Steel Sheet

304/304L polished stainless sheet coil and sheet is part of the austenitic family of stainless steel. 304 grades contain a lower level of carbon than 302 and 304/304L has a lower carbon level than straight grade 304. Types 304 and 304L have very good drawability and excellent corrosion resistance in chemical, textile, petroleum and food industry exposure.  No. 4 polished surface is a non-reflective brushed finish obtained by course grinding followed by finishing with a 120-150 mesh abrasive. This general purpose bright finish has a visible grain to prevent mirror reflection.  Polished surfaces are easy to clean, ensuring a minimum foothold for dirt, bacteria and corrosive substances.

TW stocks a wide range of sizes in 304/304L stainless certified to AMS 5511, ASTM A 240, and ASTM A 666.

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  • Architectural
  • Kitchen Equipment
  • Decorative applications 
Typical Chemical Requirements
Carbon, Max % 0.08 0.03
Manganese, Max % 2 2
Phosphorus, Max % 0.045 0.045
Sulphur, Max % 0.03 0.03
Silicon Max 0.75 0.75
Chromium range 18-20 18-20
Nickel range 8.0-10.5 8.0 - 12
Nitrogen Max 0.1 0.1
Mechanical Properties
Tensile Min 75 ksi 70 ksi
Yield Min 30 ksi 25 ksi
Elongation Min 40% 40%
Hardness Max 95 HRB 95 HRB

TW Metals offer as wide range of stock sizes and processing capabilities for your company’s needs- from 24 ga to 7 ga, 48 and 60 wide material. We also have shearing capabilities to meet your projects specific needs.