304/304L Stainless Steel
UNS S30400 | UNS S30403 | ASTM A240 | ASTM A276/A479 | ASME SA-240 | ASME SA276/SA479304/304L Stainless Steel
304 (originally 18-8 stainless) is one of the largest and most commonly available grades of austenitic stainless steel, 304 is a versatile grade of stainless steel that can be used in many different applications and industries. 304L is a low carbon version and is considered dual certified as it is produced to be both 304 and 304L.
Common industry/applications are: Aerospace, Chemical Processing, Food and Beverage Processing, Oil and Gas, Sanitary or Cryogenic, and Pressure Containing.
Product forms include round bar, hex, square, rectangle & flat bar, plate & sheet, hollow bar, tubing and pipe, and forgings.
Standards
- UNS S30400
- UNS 30403
- ASTM A240
- ASTM A276/A479
- ASME SA-240
- ASME SA276/SA479
Characteristics
- Excellent resistance to corrosion.
- Good cryogenic strength and toughness
- Excellent resistance to corrosion.
Physical Properties
- Density: 0.285LB/in³ (7.90g/cm³)
- Melting Point: 2550–2590°F (1398–1421°C)
- Modulus of Elasticity: 29.0x10⁶psi (200 GPa)
- Magnetic Permeability: 1.02 Max @ 200 H (Annealed)
Chemical Composition
C
Mn
S
P
Si
Cr
Ni
Mo
* 304L has a Ni range of 8.0–12. 0, but to be dual certified material must be within range of 304
Mechanical Properties
Mechanical properties can be altered (increased/decreased) by many methods such as cold working or strain hardening, or by the addition or modification of chemistry. Grades such as 304L Condition B are strain hardened, while grades like 304LNi, or 304H are grades with altered chemistry. However, these grades are more specialized and may not be available in all forms and sizes.
KSI (MPa)
KSI (MPa)
HRC (BHN)
Specialty Steel Supply makes all reasonable efforts to ensure the accuracy and correctness of the data found on this website and the associated documents but makes no representations or warranties as to the data’s accuracy, correctness or reliability. All data are for general information only and not for providing design advice. It is the responsibility of the user to test specific alloys under actual service conditions to determine their suitability for a particular purpose.
Stainless and Alloys
We collaborate to help you exceed requirements by bringing your best ideas forward and eliminating non-conformance.
Specialty Steel Supply Inc. is one of the largest distributors of austenitic, precipitation hardened, duplex and martensitic stainless steels. We have a wide range of products and types of stainless steel round bar and our well trained staff offers many years of experience in all aspects of the steel industry. Our ability to procure and source metals from all parts of the world allows us to stay competitive in a global marketplace. We are committed to developing and servicing just in time inventory programs.
Specialty Steel Supply
19201 Circle Lake Drive
Pinehurst, Texas 77362
info@specialtysteelsupply.com
Business Hours
Sunday - Closed
