Stainless Round Tube 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.
Outer Diameter
0.375
Wall
0.095
Inner Diameter
0.185
Alloy
321
Production Method
Seamless
Metal Type
Stainless Steel
Shape
Tube-Round
Yes
RoHS
Yes
REACH
Yes
Weight/Lineal Foot
0.29 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

This stainless steel round tube has an outer diameter of 0.375 inches, a wall thickness of 0.095 inches, and an inner diameter of 0.185 inches. It is made from alloy 321 stainless steel, known for high strength and resistance to intergranular corrosion.

Yes, alloy 321 stainless steel provides excellent high-temperature capability and resists scaling at elevated temperatures, making it ideal for aerospace, defense, and heat exchanger applications.

Welding is not recommended for this alloy due to its titanium content, but it has a machinability rating of 36, indicating moderate ease of machining.

Yes, custom cut lengths are available from warehouse 1, with maximum lengths up to 144 inches. Multiple length options are in stock, ranging from 12 to 96 inches.

Yes, it complies with RoHS and REACH standards and includes an MTR (Material Test Report) for quality assurance.

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