Stainless Steel Alloy 303 A1

Description

Type 303 stainless steel, which is known formally as Stainless Steel type 1.4305 and A1, is a popular non-magnetic, austenitic stainless steel. Type 303 is readily machinable and offers other important characteristics including:

• Outstanding heat resistance to oxidation when intermittently exposed to temperatures up to 760°C
• Ease of fabrication
• Decent corrosion resistance in mild environments
• Same corrosion resistance as Type 304 with a slightly higher strength

Because of these benefits Type 303 stainless steel is widely used in a number of critical industries for a variety of applications including:

• Screws
• Nuts and bolts
• Gears
• Aircraft fittings
• Bushings
• Shafts
• Food production
• Use around chemicals

A unique chemical composition is needed to create Type 303 stainless steel.  These elements include the following:

• Fe 69%
• Cr 17-19%
• Ni 8-10%
• Mn 2.0%
• Si 1.0%
• P 0.20%
• C 0.15% max
• S 0.15% min

We are supplies Type 303 stainless steel in a variety of forms and shapes such as flat, round, and square bars. All of the Type 303 stainless steel that we source meets or exceeds national and international standards and specifications from organizations like AMS, ASTM, EN, and DIN.