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
1.5
Wall
0.035
Inner Diameter
1.43
Alloy
321
Production Method
Seamless
Metal Type
Stainless Steel
Shape
Tube-Round
Yes
RoHS
Yes
REACH
Yes
Weight/Lineal Foot
0.55 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 1.5 inches, a wall thickness of 0.035 inches, and an inner diameter of 1.43 inches. It is made from alloy 321 stainless steel, known for its high strength and resistance to intergranular corrosion, especially at elevated temperatures.

Yes, the tube is available for custom cutting at the warehouse. Length options range up to a maximum of 240 inches, allowing you to order sizes that fit your project requirements.

While alloy 321 offers excellent high-temperature resistance and resists scaling, the addition of titanium means welding is generally not recommended. It is commonly used in aerospace and defense applications such as engine parts, heat exchangers, and exhaust stacks.

Yes, this product complies with RoHS and REACH standards, and material test reports (MTR) are available to verify its chemical and mechanical properties.

The product is in stock with multiple length options available for immediate shipment. Shipping weights vary by length, and the item is sold by Online Metals with prices ranging based on size.

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