Stainless Square 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.
Height
0.25
Max Length
144
Alloy
303
Temper
Annealed
Production Method
Cold Drawn
Metal Type
Stainless Steel
Shape
Bar-Square
Yes
RoHS
Yes
REACH
Yes
Custom Cut Warehouse
1
Weight/Lineal Foot
0.22 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 square bar has a height of 0.25 inches and is made from 303 alloy stainless steel. It is annealed and cold drawn, offering good machinability with a Brinell hardness of 165 and a density of 8 g/cm³.

Yes, the 1/4" Stainless Square Bar 303 is available for custom cutting with lengths up to 144 inches. The product is stocked in a warehouse that supports custom cut orders.

Yes, this alloy is one of the easiest stainless steels to machine, grind, and polish. While its toughness and corrosion resistance are slightly lower than other stainless steels, it is commonly used in aircraft parts, machine components, pumps, valves, and architectural applications.

The product complies with RoHS and REACH standards and comes with Material Test Reports (MTR) available, ensuring quality and regulatory compliance.

The square bar is in stock and available in multiple lengths ranging from 12 to 96 inches. Shipping weights vary by length, starting at 0.22 lb for the 12-inch piece, and all sizes are ready for immediate shipment.

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