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ASTM A240 UNS S31603 is a widely used austenitic stainless steel, also known as alloy 316L. It is a low carbon version of the popular AISI 316, and is preferred for its enhanced resistance to corrosion. 1.4404 AISI 316L plate, sheet, and strip are therefore commonly used in applications where corrosion resistance is a critical factor, such as in the chemical, petrochemical, and pharmaceutical industries.
ASTM A240 UNS S31603 Mechanical Properties
Tensile Strength (ksi): 70 min.
Yield Strength (ksi): 25 min.
Elongation (% in 2 inches): 40 min.
Hardness (Brinell): 217 max.
1.4435 AISI 316L Chemical Composition
| Element | Weight % (Max unless specified) |
| Carbon (C) | 0.030 |
| Chromium (Cr) | 16.0 – 18.0 |
| Nickel (Ni) | 10.0 – 14.0 |
| Molybdenum (Mo) | 2.00 – 3.00 |
| Manganese (Mn) | 2.00 |
| Silicon (Si) | 0.75 |
| Nitrogen (N) | 0.10 |
| Phosphorus (P) | 0.045 |
| Sulfur (S) | 0.030 |
ASTM A240 Gr 316L Plate Physical Properties
- Density (lb/in³): 0.29
- Melting Range (°F): 2500 - 2550
- Specific Heat (Btu/lb°F): 32 to 212°F: 0.12
- Thermal Conductivity (Btu/hr ft °F): 212°F: 8.9
ASTM A240 316L Ss Sheet Resistance To Corrosion
One key property of ASTM A240 UNS S31603 is its high resistance to pitting and crevice corrosion. This makes it an ideal choice for use in harsh environments, such as those containing chloride and other corrosive agents. In addition, the alloy 316l has excellent resistance to corrosion in high-temperature and acidic environments, making it suitable for use in applications such as heat exchangers and chemical reactors.
ASME SA 240 316L Plates Ductility And Toughness
Another important property of alloy 316l UNS S31603 plate is its good ductility and toughness, which allows it to be easily formed into complex shapes and structures. This makes it a versatile material that can be used in a wide variety of applications, from simple components to complex machinery.
ASTM A240 Type 316l Strip Weldability
1.4404 aisi 316l also exhibits high strength and good weldability, which makes it an attractive choice for use in structural applications. It can be welded using a variety of methods, including gas tungsten arc, gas metal arc, and plasma arc welding.
AISI 316L ASTM A240 Heat Resistance
Finally, UNS S31603 has excellent heat resistance, allowing it to maintain its mechanical and chemical properties even in high-temperature environments. This makes it suitable for use in applications such as furnace components, heat exchangers, and other high-temperature equipment.
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