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With better strength at higher temperatures, Type 422 (S42200) is an appealing alternative to Type 403. Type 422 is a hardenable martensitic stainless steel which is being widely used for high temperatures up to 1200°F. It is capable of being heat treated to various high strength levels. It is often used in aircraft and power industries who require high strength/weight ratios from room temperature to 1200°F.
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Alloy 420 is a hardenable, martensitic stainless steel that is a modification of Alloy 410. Similar to 410, it contains a minimum of 12% chromium, just sufficient enough to give corrosion resistant properties. Alloy 420 has higher carbon content than Alloy 410 which is designed to optimize strength and hardness characteristics. It has good ductility it the annealed condition but is capable of being hardened up to Rockwell hardness 50 HRC, the highest hardness of the 12% chromium grades.
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JIS G3125 SPA-H Corten steel,SPA-H steel plate/Sheet. SPA-H low alloy high strength atmospheric corrosion resisting steel.
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S420NL steel is a good weldability structural steel grade. General requirements for arc welding of the steels specified shall be as given in EN 1011-2. Compare the S355N, S420NL steel grade has more yield and tensile strength. The equal grade of S420NL is S420ML.
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ASTM A656 A high-strength, low-alloy, hot-rolled structural steel plate utilized in structural applications where lighter weight and improved formability is critical. Applications include: truck frames, crane booms, and rail car components.ASTM A656 Grade 80 Steel Plate produces high-performing A656 Grade 80 steel plate with impressive strength, remarkable resistance to corrosion and available in an array of grades.
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A283 Grade D steel plates furnished shall conform to the requirements of the current of specification a6/a6m. In the process, A283 Grade D shall be made by one or more of following processes: open hearth, basic oxygen or electric furnace. A283 steel grade covers four grades in A283 Grade A, A283 Grade B, A283 Grade C, and A283 Grade D of carbon steel plates of structural quality for general application
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