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Stainless Steel 304L Material Property Data Sheet

Do you need custom fasteners created with Stainless Steel 304L? Since our inception, Vegas Fastener Manufacturing has met every challenge of providing Quality, Timely, Cost-effective solutions for specialty fastener applications. Every product is built to your specifications, using your prints if necessary.

Below are the technical specifications of the Stainless Steel 304L Bar Stock we have available to meet your needs.


AK Steel Austenitic Stainless Steel 304L

Subcategory: Metal; Stainless Steel; T 300 Series Stainless Steel; Austenitic

Close Analogs: Iron content calculated as remainder

Component   Wt. %
CMax 0.03 
Cr18 - 20 
Fe65.045 - 74 
Component   Wt. %
MnMax 2 
N Max 0.1 
Ni8 - 12 
Component   Wt. %
PMax 0.045 
SMax 0.03 
SiMax 0.75 

Material Notes:
AK Steel 304L is an extra low-carbon variation of Type 304, that eliminates carbide precipitation due to welding. AK Steel 304L can be used in the "as-welded" condition, even in severe corrosive conditions. It often eliminates the necessity of annealing weldments except for applications specifying stress relief. It has slightly lower mechanical properties than Type 304.

Information provided by AK Steel

Physical PropertiesMetricEnglishComments
Density8.03 g/cc0.29 lb/in 

Mechanical Properties
Hardness, Rockwell B8080 
Tensile Strength, Ultimate586 MPa85000 psi 
Tensile Strength, Yield241 MPa35000 psi 0.2% YS
Elongation at Break55 %55 % in 2 inches
Modulus of Elasticity193 GPa28000 ksi tension
Modulus of Elasticity78 GPa11300 ksi torsion

Electrical Properties
Electrical Resistivity0.000116 ohm-cm0.000116 ohm-cm 659C
Electrical Resistivity7.2e-005 ohm-cm7.2e-005 ohm-cm 
Magnetic PermeabilityMax 1.02Max 1.02 H = 200 Oersteds, Annealed

Thermal Properties
CTE, linear 20C16.9 m/m-C9.39 in/in-F 0 to 100C
CTE, linear 20C18.7 m/m-C10.4 in/in-F to 649C
Heat Capacity0.5 J/g-C0.12 BTU/lb-F 0C to 100C
Thermal Conductivity16.2 W/m-K112 BTU-in/hr-ft-F 100C
Thermal Conductivity21.4 W/m-K149 BTU-in/hr-ft-F 500C

Processing Properties
Melt Temperature1399 - 1454 C2550 - 2650 F 


This information is provided by MatWeb.com, The Online Materials Database and is reprinted with their permission.

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