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
0.5
Max Length
144
Alloy
321
Metal Type
Stainless Steel
Shape
Bar-Round
Yes
RoHS
Yes
REACH
Yes
Custom Cut Warehouse
1
Weight/Lineal Foot
0.67 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 1/2" Stainless Round Bar 321 is ideal for aerospace and defense uses, including engine parts, heat exchangers, missile components, exhaust stacks, rocket engines, and manifolds due to its high strength and resistance to high temperatures and intergranular corrosion.

Welding is not recommended for this alloy because of the titanium addition, which helps resist scaling at high temperatures but makes welding unsuitable.

Yes, custom cutting is available from the warehouse, with length options ranging from 12 inches up to 144 inches to suit your project needs.

Yes, MTR (Material Test Reports) are available for this product, ensuring compliance and quality verification.

This product complies with RoHS and REACH standards and meets ASTM and AMS specifications, making it suitable for regulated industries.

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