|
Grade |
Description |
Flats | Rounds | Tubing |
| 17-4 PH | Chromium-nickel grade of stainless steel. May be hardened by single low- temperature heat treatment, yielding excellent mechanical properties at a high-strength level, and minimizing scaling and distortion. This grade should not be used in the solution-treated condition. | X | X | |
| 302 | Type 302 is the basic "18-8" chromium-nickel stainless steel. It combines excellent mechanical properties with remarkable resistance to many corrosive agents encountered in domestic and industrial use. It is useful where sanitation and cleanliness are important. It is non-magnetic in the annealed condition and not hardenable by heat treatment. Both hardness and tensile strength can be increased by cold working. This is an electric-furnace product manufactured to meet the exacting standards of the aircraft industry. | X | X | |
| 304, 304L | The analysis of Type 304 is similar to that of Type 302, except that Type 304 is modified by lowered carbon content. This provides good resistance to corrosion in welded construction where subsequent heat treatment is not practicable. Bars are available not only in the regular Type 302 and 304 analyses, but also in an extra-low-carbon analysis, known as Type 304L. The advantage of this analysis is that it precludes any harmful precipitation in the 800° F - 1500° F range, such as might otherwise occur in welding heavier sections. | X | X | X |
| 303S, 303Se | Chromium-nickel stainless steel with added sulfur or selenium and phosphorus to improve machinability and non-seizing properties. It is the most free machining of the chromium-nickel grades. It is non-magnetic in the annealed condition and is not hardenable by heat-treatment tensile strength, and hardness can be increased by cold working. | X | X | X |
| 316, 316L | Chromium-nickel stainless steel with molybdenum added to increase corrosion resistance and mechanical properties at elevated temperatures. Non-magnetic in the annealed condition and not hardenable by heat treatment. The 316L grade (low carbon) precludes any harmful precipitation in the 800° F - 1500° F range that might result from welding heavier sections. This grade is available in precision-ground pump shafting. | X | X | X |
| 410 | Basic chromium grade of stainless steel. This is a heat treatable stainless steel. It is magnetic in all conditions. | X | ||
| 416 | Chromium grade of stainless steel with phosphorus and sulfur added to improve machinability. Most readily machinable of the stainless grades. It is magnetic in all conditions and capable of wide range of mechanical properties by heat treating. This grade is available in precision-ground pump shafting. | X | ||
| 420 | Grade 420 stainless steel is a higher carbon version of 410; like most non-stainless steels it can be hardened by heat treatment. It contains a minimum of 12 per cent chromium, just sufficient to give corrosion resistance properties. It has good ductility in the annealed condition but is capable of being hardened up to Rockwell Hardness 50HRC, the highest hardness of the 12 per cent chromium grades. Its best corrosion resistance is achieved when the metal is hardened and surface ground or polished. | X | ||
| 440C | High-carbon, chromium stainless steel capable of developing the highest hardness and mechanical properties of all the stainless steels. It is magnetic in all conditions. | X | X |
Copyright Mid South Tool Supply 2006