Stainless Round Bar 321 provides high strength, high temperature capability, and resistance to intergranular corrosion. 321 resists scaling at higher temperatures. Also, the addition of titanium means that welding is not suggested for this alloy. It is typically used in aerospace and defense for engine parts, heat exchangers, missile components, exhaust stacks, rocket engines, manifolds, and more.

MTR MTR Available
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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
0.375
Max Length
144
Metal Type
Stainless Steel
Shape
Bar-Round
Yes
RoHS
Yes
REACH
Yes
Weight/Lineal Foot
0.39 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 3/8" Stainless Round Bar 321 is available in multiple standard lengths including 12, 24, 36, 48, 72, 96, and 144 inches, all in stock and ready to ship.

Yes, this stainless steel alloy 321 round bar offers high strength and excellent resistance to scaling and intergranular corrosion at elevated temperatures, making it ideal for aerospace and defense applications such as engine parts and heat exchangers.

Welding is not recommended for this alloy due to the titanium content, which is added to improve high-temperature resistance but can complicate welding processes.

Yes, material test reports (MTRs) are available for this product to ensure compliance and quality verification.

Yes, this stainless steel round bar complies with both RoHS and REACH regulations, ensuring it meets important environmental and safety standards.

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