Kanakratna steelage is a renowned exporter, manufacturer, stockist, supplier, and stockholder of high-quality Stainless Steel Alloy Seamless Tubes. These tubes are celebrated for their excellent corrosion resistance, durability, and high strength, making them ideal for a wide range of applications including petrochemical, pharmaceutical, food processing, and marine industries. Stainless steel alloy tubes maintain their integrity and performance across various temperature ranges and environments, offering superior weldability and ease of fabrication. This ensures reliable and long-lasting performance in even the most challenging conditions.
Grade 316 is the standard molybdenum-bearing grade, second inoverall volume production to 304 amongst the austenitic stainless steels. The molybdenum gives 316 better overall corrosion resistant properties than Grade 304, particularly higher resistance to pitting and crevice corrosion in chloride environments.
Grade 316L, the low carbon version of 316 and has very high immunity from sensitization (grain boundary carbide precipitation). It is extensivly used in the oil and gas and chemical industries for its cost effective corrosion resistance and ease of fabrication. There is commonly no appreciable price difference between 316 and 316L stainless steel. The austenitic structure also gives these grades excellent toughness, even down to cryogenic temperatures. Compared to chromium-nickel austenitic stainless steels, 316L stainless steel offers higher creep, stress to rupture and tensile strength at elevated temperatures.
Technical Specifications
| CHEMICAL COMPOSITION (% by weight) | ||||
|---|---|---|---|---|
| 316 | 316L | |||
| Element | Min | Max | Min | Max |
| C | - | 0.08 | - | 0.035 |
| Mn | - | 2 | - | 2 |
| Ni | 10 | 14 | 10 | 15 |
| Cr | 16 | 18 | 16 | 18 |
| Mo | 2 | 3 | 2 | 3 |
| S | - | 0.03 | - | 0.03 |
| Si | - | 1 | - | 1 |
| P | - | 0.045 | - | 0.045 |
| MECHANICAL PROPERTIES | ||||||
|---|---|---|---|---|---|---|
| Temper | Annealed | Cold worked (approx. 20%) | ||||
| 316 | 316L | 316 | 316L | |||
| Tensile Rm | 75 | 70 | ksi (min) | 102-131 | ksi (min) | |
| Tensile Rm | 515 | 485 | MPa (min) | 700-900 | MPa (min) | |
| R.p. 0.2% Yield | 30 | 27 | ksi (min) | 73-102 | ksi (min) | |
| R.p. 0.2% Yield | 205 | 182 | MPa (min) | 500-700 | MPa (min) | |
| Elongation (2” or 4D gl) | 35 | % (min) | 40 | % (min) | ||
| PHYSICAL PROPERTIES (Room Temperature) | ||
|---|---|---|
| Specific Heat (0-100°C) | 500 | J.kg-1.°K-1 |
| Thermal Conductivity | 16.3 | W.m -1.°K-1 |
| Thermal Expansion | 15.9 | mm/m/°C |
| Modulus Elasticity | 193 | GPa |
| Electrical Resistivity | 7.4 | Ohm-cm |
| Density | 7.99 | g/cm3 |