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Stainless
Steel Structurals
Grade 304 and 304L
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Description
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The most widely used of austenitic grades. 304 offers good corrosion resistance to many chemicals and industrial atmospheres. Generally considered non-magnetic. It can become slightly magneting when cold-worked. 304 is non hardenable by heat treatment. In 304L, the carbon content has been lowered to .03% max. for corrosion resistance at heat affected zones from welding.
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Typical
Applications
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- Architectural Trim
- Beer Barrels
- Cryogenic Vessels
- Dairy Equipment
- Wide Variety of Food Applications
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| Chemical
Composition |
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304 |
304L |
| Chrome (Cr) : |
18.00 - 20.00 |
18.00 - 20.00 |
| Nickel (Ni) : |
8.00 - 11.00 |
8.00 - 11.00 |
| Carbon (C) : |
.08 max |
.03 max |
| Manganese (Mn) : |
2.0 max |
2.0 max |
| Silicon (Si) : |
1.0 max |
1.0 max |
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| Mechanical Properties (Annealed) |
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304 |
304L |
| Tensile-KSI: |
85 |
75 |
| Yield-KSI: |
34 |
30 |
| Elongation in 2"-%: |
60 |
25% min60 |
| Reduction in Area -% Min: |
70 |
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| Brinell Hardness : |
170 |
160 |
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| Welding Characteristics |
| Very good - tough welds |
| Machining |
| Compared to B1112 screw stock - 45% |
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