304L Stainless Steel
Type 304L stainless steel serves a wide range of applications. It withstands ordinary rusting in architecture, it is resistant to food processing environments, it resists organic chemicals, dyestuffs, and a wide variety of inorganic chemicals.
Marco Specialty Steel offers the following products in 304L stainless steel:
- Wire Cloth
- Perforated Metal
- Expanded Metal
- Bar Grating
- Diamond Safety Grating
- Perf Safety Grating
- Tread Grip Safety Grating
- Hex Metal
We also offer FRP Grating and custom fabrication all of our products.
Principal Design Features: A low carbon version of type 304 stainless. 304L is used almost interchangeably with 304 but is preferred for welding operations. It offers a good combination of strength, corrosion resistance and is easily fabricated.
Applications: The list for 304L stainless steel is endless. Almost every conceivable industry uses some of this material in some way. Everything from stovetops to ball point pen barrels to flatware to fasteners has been fabricated from this alloy.
Machinability: Slow speeds and heavy feeds will minimize this alloys tendency to work harden. Due to long stringy chips, the use of chip breakers is advisable. Many companies now offer premium machinability grades, such as CarTech with their Project 70 and 7000 series.
Welding: All fusion and resistance processes have been successfully employed in welding 304 stainless. AWS E/ER308 or 312 filler metal is recommended. Its low carbon, means that the is less carbide precipitation at the weld boundaries resulting in stronger welds.
304L Chemistry
| Carbon | 0.03 max |
| Chromium | 18 - 20 |
| Iron | Balance |
| Manganese | 2 max |
| Nickel | 8 - 12 |
| Phosphorous | 0.045 max |
| Silicon | 1 max |
| Sulphur | 0.03 max |
304L Physical Data
| Density (lb / cu. in.) | 0.29 |
| Specific Gravity | 7.9 |
| Specific Heat (Btu/lb/Deg F - [32-212 Deg F]) | 0.12 |
| Electrical Resistivity (microhm-cm (at 68 Deg F)) | 432 |
| Melting Point (Deg F) | 2650 |
| Modulus of Elasticity Tension | 28 |
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This publication may include technical inaccuracies or typographical errors. Changes may be periodically made to the information herein.