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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.

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Dimension Name


Alloy 347
Production Method Cold Finish
Diameter 1.75
Max Length 144
MTR Availability Yes
Full Length true
Material Stainless Steel
Shape Bar-Round
Custom Cut Warehouse 1
Material Specifications

This material meets the following specs: AMS -QQ-S-763, ASTM -A276, ASTM -A479, AMS -5646

Weight/Lineal Foot

8.34 pounds
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.

Mechanical Properties

Property Value
Brinell hardness  212
Density g/cm^3 8
Rockwell Hardness B scale 94
Elongation % in 2 inches 40
Modulus of Elasticity KSI x 10^3 28
Melting Point °F 2550 - 2597
Specific Heat BTU/lb-°F (32-212F) 1
Thermal conductivity BTU-in/hr-ft^2-°F 113
Ultimate Tensile Strength KSI 100
Yield KSI 65
Shear Strength KSI 67
Impact values - Izod ft-lb 88 - 118

Chemistry Information: 347 Stainless Steel

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
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