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Stainless 304 Product Guide
Applications | Specifications | Mechanical and Chemical Data | Tolerances
Overview
The most commonly used stainless steel alloy in the world, 304/304L stainless steel offers a great mix of strength and corrosion resistance without being overly specialized. It maintains excellent corrosion resistance in most situations outside of marine environments and maintains its properties in high temperature situations. It is typically used in aerospace, food and beverage industry, pressure containers, architectural designs and trim, cryogenic applications, and chemical processing equipment.
Common Trade Names
UNS S30400, AISI 304, SAE 304, T304, T-304, Cr/Ni 18/10, austenitic stainless steel
Other Resources
Safety Data Sheet | Weight Calculator | Mill Test Reports
Products
Purchase Stainless Angle Equal 304 | Stainless Angle Unequal 304 | Half Round Bar 304 | Hex Bar 304 | Rectangle Bar 304 | Round Bar 304 | Square Bar 304 | Channel 304 | Pipe 304 | Expanded Sheet 304 | Tread Plate 304 | Perforated Sheet 304 | Sheet/Plate 304 | T-Bar 304 | Threaded Rod 304 | Rectangle Tube 304 | Round Tube 304 | Square Tube 304 | Backsplash 304 | Bushing 304 | Cap 304 | Coupling 304 | Cross 304 | Elbow 304 | Flange 304 | Foil 304 | Half Coupling 304 | Insert 304 | Nipple 304 | Plug 304 | Reducer 304 | Sample Pack 304 | Tape 304 | Tee 304 | Union 304 | Wire 304 | Decorative Fittings 304
Applications
- Aerospace
- Food/Beverage Hardware
- Pressure Containers
- Architectural Design/Trim
- Cryogenic Equipment
- Chemical Processing Equipment
Stainless 304 Specifications
ASTM | AMS | ASME |
|---|---|---|
| A240 | 5511 | SA-240 |
| B210 | 5513 | |
| 5647 |
| Physical Properties 304 | |||||
| Annealed | 1/8 Hard | Full Hard | |||
|---|---|---|---|---|---|
| Density | 0.289 lb/in3 | 0.289 lb/in3 | 0.289 lb/in3 | ||
| Ultimate Tensile Strength | 85 ksi | 100 ksi max. | 186 ksi max. | ||
| Yield Tensile Strength | 35 ksi | 55.1 ksi max. | 140 ksi max. | ||
| Shear Modulus | 11,000 ksi | 11,000 ksi | 11,000 ksi | ||
| Shear Strength | 56 ksi | 77 ksi | N/A | ||
| Fatigue Strength | 27.5 ksi | 52 ksi | N/A | ||
| Hardness Rockwell | Brinell | B92 | 195 max | B100 | 240 | C41 | 371 | ||
| Elongation at Break Percentage | 55% | 37% | 1% min. | ||
| Reduction of Area | 70% | N/A | N/A | ||
| Modulus of Elasticity | 28,000 ksi | 28,000 ksi | 28,000 ksi | ||
| Poisson's Ratio | 0.29 | 0.29 | 0.29 | ||
| Machinability Percentage | 40% | N/A | N/A | ||
| Melting Point | 2,550-2,651 °F | 2,550-2,651 °F | 2,550-2,651 °F | ||
| Specific Heat | 1.1 x 10^-1 BTU/lb-°F | 1.1 x 10^-1 BTU/lb-°F | 1.1 x 10^-1 BTU/lb-°F | ||
| Thermal Conductivity | 112 BTU-in/hr-ft^2-°F | 112 BTU-in/hr-ft^2-°F | 112 BTU-in/hr-ft^2-°F | ||
| Electrical Conductivity | 2.4% IACS | 2.4% IACS | 2.4% IACS | ||
|
Chemistry Information
|
|
Element |
Percentage |
| C | 0.08 max |
| Cr | 20 |
| Fe | 66.34 - 74 |
| Ni | 8 - 10.5 |
| Mn | 2 max |
| P | 0.045 max |
| S | 0.03 max |
| Si | 1 max |
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