Stainless Rectangle Bar 303 is one of the easiest stainless steel alloys to machine, grind and polish. Toughness and corrosion resistance are slightly lower than most other stainless steels as a result. It is typically used in aircraft applications, machine parts, pump and valve parts, architectural applications, nuts, and bolts.

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.
Thickness
2
Width
4
Max Length
144
Alloy
303
Temper
Annealed
Metal Type
Stainless Steel
Shape
Bar-Rectangle
Yes
RoHS
Yes
REACH
Yes
Custom Cut Warehouse
1
Weight/Lineal Foot
27.17 pounds
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Mechanical Properties

Brinell Hardness 3000 kg load
165
Yield Tensile Strength KSI
34
Ultimate Tensile Strength KSI
89
Machinability %
75 min
Electrical Conductivity % IACS
2 min
Rockwell Hardness B Scale
85
Shear Strength KSI
62 min
Elongation % in 2 in.
44
Density g/cm^3
8
Melting Point °F
2550 - 2590
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Chemistry Information : 303 Stainless Steel

Element
Percentage
Element
Percentage
Element
Percentage
C
0.15  max
Cr
18
Fe
69
Mn
2  max
Ni
9
Mo
0.6  max
P
0.2  max
S
0.15  max
Si
1  max

This stainless steel rectangle bar measures 2 inches in thickness and 4 inches in width, made from 303 alloy stainless steel in an annealed HRAP temper. It offers good machinability with a Brinell hardness of 165 and is suitable for applications requiring moderate corrosion resistance.

Yes, this stainless rectangle bar is available for custom cutting with maximum lengths up to 144 inches. Custom cuts are processed from warehouse stock to meet your size requirements.

Yes, the 303 stainless steel alloy is commonly used in aircraft applications, machine parts, pump and valve parts due to its excellent machinability and decent toughness, although it has slightly lower corrosion resistance compared to other stainless steels.

This stainless steel rectangle bar complies with RoHS and REACH standards, and Material Test Reports (MTR) are available to verify its chemical and mechanical properties.

The bar is shipped in various lengths with weights ranging from approximately 27 to 326 pounds depending on the cut length. It is stocked and shipped from Online Metals' warehouse with multiple size options in stock.

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