Stainless Round Bar 347 provides high strength, high temperature capability, and corrosion resistance in strongly oxidizing environments. 347 is an austenitic stainless and also can operate at high temperatures without losing strength. It is typically used in aerospace for aircraft exhausts, collector rings, expansion joints, and in high temperature chemical processing.

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
1.375
Max Length
144
Alloy
347
Production Method
Cold Finish
Metal Type
Stainless Steel
Shape
Bar-Round
Yes
RoHS
Yes
REACH
Yes
Custom Cut Warehouse
1
Weight/Lineal Foot
5.15 pounds
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Mechanical Properties

Ultimate Tensile Strength KSI
93
Density g/cm^3
8
Yield Tensile Strength KSI
39
Brinell Hardness 500 kg load
167
Rockwell Hardness B Scale
85
Shear Strength KSI
65
Electrical Conductivity % IACS
2
Melting Point °F
2550 - 2600
Machinability %
36
Elongation % in 2 in.
45
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Chemistry Information : 347 Stainless Steel

Element
Percentage
Element
Percentage
Element
Percentage
Mn
2  max
C
0.08  max
P
0.045  max
S
0.03  max
Si
0.75  max
Cr
17 - 19
Ni
9 - 13
Nb + Ta
1  max

This stainless steel round bar is alloy 347 with a cold finish, offering high strength, excellent corrosion resistance, and the ability to withstand high temperatures. It is ideal for aerospace applications such as aircraft exhausts and expansion joints, as well as high temperature chemical processing.

Yes, custom cut lengths are available from the warehouse. The bar can be ordered in lengths up to 144 inches, with multiple length options in stock and ready to ship.

Yes, this product complies with RoHS and REACH regulations and meets ASTM and AMS standards such as A276, A479, and QQ-S-763. It also comes with Material Test Reports (MTR) for quality assurance.

The bar has a machinability rating of 36 and an ultimate tensile strength of 93 ksi, making it suitable for demanding machining and structural applications.

The product is available in multiple lengths with corresponding ship weights ranging from approximately 5.15 lbs for 12-inch lengths up to 41.2 lbs for 96-inch lengths, ensuring convenient shipping options.

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