Stainless Steel Round Bar 321 is an austenitic chromium-nickel stainless steel known for its excellent resistance to intergranular corrosion after exposure to temperatures within the chromium carbide precipitation range. This makes it ideal for high-temperature applications up to approximately 1500°F. The addition of titanium stabilizes the steel, preventing carbide precipitation and enhancing its weldability. It's commonly used in aerospace components, furnace parts, and chemical processing equipment where high strength and corrosion resistance are crucial.
MTR MTR Available
USA U.S.A. Made
Return Non-returnable
DFARS DFARS Compliant
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Product Information

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Please note:

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Please note that this data is to be used ONLY FOR REFERENCE, NOT FOR DESIGN, and by using it,you agree that any decisions you make regarding materials for your project are at your own discretion.
Diameter
4.25
Alloy
321
Metal Type
Stainless Steel
Shape
Bar-Round
Ships
5-6 Business Days
Brand
Slice of Stainless
Eniteo Vendor ID
3143
Weight/Lineal Foot
48.492 pounds
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Mechanical Properties

Density g/cm^3
8
Rockwell Hardness B Scale
91
Elongation % in 2 in.
42
Ultimate Tensile Strength KSI
93
Brinell Hardness 3000 kg load
190
Yield Tensile Strength KSI
42
Shear Strength KSI
64
Electrical Conductivity % IACS
2
Melting Point °F
2550 - 2600
Machinability %
36
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Chemistry Information : 321 Stainless Steel

Element
Percentage
Element
Percentage
Element
Percentage
C
0.08
Cr
18
Fe
68
Mn
2
P
0.045
S
0.03
Ni
11
Si
1
Ti
0.15

The 4.25" diameter Stainless Steel Round Bar 321 is available in cut lengths of 6, 12, 24, 36, 48, and 72 inches. Shipping weights range from approximately 24.25 lb for the 6-inch length up to 290.95 lb for the 72-inch length.

Yes, this 321 alloy stainless steel bar is stabilized with titanium to resist intergranular corrosion and is ideal for high-temperature use up to about 1500°F, making it suitable for aerospace, furnace parts, and chemical processing equipment.

Yes, Material Test Reports (MTRs) are available for this product to verify its chemical and mechanical properties.

Yes, this product is DFARS compliant and is sourced domestically, ensuring it meets regulatory and sourcing requirements.

This 321 stainless steel round bar has a machinability rating of 36 and an ultimate tensile strength of 93 ksi, providing a good balance of strength and workability for demanding applications.

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