Stainless Steel Type 304 Pipe 20ft Length are variations of the 18 percent chromium – 8 percent nickel austenitic alloy, the most familiar and most frequently used alloy in the stainless steel family.
High strength, excellent corrosion resistance and minimized carbon content make Alloy 304 and 304L Stainless Steels useful for applications where welding is required. Uses include architectural mouldings and trim, welded components of chemical,textile,paper, pharmaceutical and chemical industry processing equipment.
Other advantages are its resistance to oxidation, excellent formability, ease of fabrication and cleaning, excellent strength to weight ratio and good toughness at cryogenic temperatures.
For severely corrosive environments,the lower content of Type 304L is preferred because of its greater immunity to intergranular corrosion.
TECHNICAL DATA
Mechanical Properties
Temper304304L
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| Tensile Rm | 76 | ksi (min) | 70 | ksi (min) |
| Tensile Rm | 517 | MPa (min) | 485 | MPa (min) |
| R.p. 0.2% Yield | 31 | ksi (min) | 25 | ksi (min) |
| R.p. 0.2% Yield | 207 | MPa (min) | 170 | MPa (min) |
| Elongation (2" or 4D gl) | 40 | % (min) | 40 | % (min) |
Physical Properties (Room Temperature)
| Specific Heat (0-100°C) | 500 | J.kg-1.°K-1 |
| Thermal Conductivity | 16.2 | W.m -1.°K-1 |
| Thermal Expansion | 17.2 | mm/m/°C |
| Modulus Elasticity | 19.3 | GPa |
| Electrical Resistivity | 7.23 | μohm/cm |
| Density | 8.0 | g/cm3 |
Chemical Composition (% by weight)
304304LElementMinMaxMinMax
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| C | - | 0.08 | - | 0.08 |
| Mn | - | 2 | - | 2 |
| Ni | 8 | 10.5 | 8 | 12.0 |
| Cr | 18 | 20 | 18 | 20 |
| S | - | 0.03 | - | 0.03 |
| N | - | 0.1 | - | 0.1 |
| Si | - | 0.75 | - | 0.75 |
| P | - | 0.045 | - | 0.045 |
