There are three classes of grade 304 stainless steel – 304, 304L and 304H. All classes contain roughly the same amount of chromium and nickel – though 304 contains less nickel then 304L. The main difference lies within the amount of carbon (C) used for these classes.
WHAT IS 304 STAINLESS STEEL?
Stainless steel 304 is an austenitic grade of stainless steel that contains high nickel content, typically somewhere between 8 and 10.5 percent by weight and a high amount of chromium that comprises approximately 18 to 20 percent by weight. The lower carbon content of grade 304 stainless steel minimizes chromium carbide precipitation from welding and the alloy’s susceptibility to intergranular corrosion.
| C Carbon | Mn Manganese | P Phosphorus | S Sulfur | Si Silicon | Cr Chromium | Ni Nickel | N Nitrogen | Mo Molybdemum | Other |
|---|---|---|---|---|---|---|---|---|---|
| 0.08 | 2 | 0.045 | 0.03 | 1 | 18.00-20.00 | 8.00-10.50 | - | - | - |
Typical Applications for 304 stainless steel strip:
hypodermic needles
flexible hoses
clamps
evaporators
bellows
airbag sensors
tubing
cooling coils
hinges
oil and gas filter screens
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