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304/304L

Common Trade Names: 304 Stainless, 304L Stainless.

Austenitic stainless, low carbon for as-welded corrosion resistance.

Available Product Forms:

Pipe, tube, fitting, flange, sheet, strip, plate, round bar, flat bar, fastener, forging stock, hexagon and wire.

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Specifications

UNS S30400, UNS S30403, Werkstoff 1.4307, EN 1.4307
ASTM: A 240, A 276, ASTM A 312, A 479
ASME: SA-240

Trademark Notice: Some names are trade names and/or trademarks of specific manufacturers. American Special Metals, Corp. is not affiliated with any manufacturer(s). Orders will be filled to meet specifications from any available source(s). Names are listed solely for reference to help identify products consistent with listed specifications.

American Special Metals, Corp. makes all reasonable efforts to ensure the accuracy and correctness of the data in this document but makes no representations or warranties as to the data’s accuracy, correctness or reliability. All data are for general information only and not for providing design advice. It is the responsibility of the user to test specific alloys under actual service conditions to determine their suitability for a particular purpose.

Chemical Composition

Element Type 304 (%) Type 304L (%)
Carbon 0.08 max. 0.03 max.
Manganese 2.00 max. 2.00 max.
Phosphorus 0.045 max. 0.045 max.
Sulfur 0.03 max. 0.03 max.
Silicon 0.75 max. 0.75 max.
Chromium 18.00-20.00 18.00-20.00
Nickel 8.00-12.00 8.00-12.00
Nitrogen 0.10 max. 0.10 max.
Iron Balance Balance
Limiting Chemical Composition, %  by Weight.

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