The sculpture is divided into indoor and outdoor, and stainless steel sculpture is also divided into indoor and outdoor. Today we will talk about which stainless steel is selected for outdoor sculpture.
For stainless steel used outdoors, the total chromium content of the tweezers should not be less than 25%, and the tweezer’s content should not be less than 8%. 304 (0Cr18Ni9) meets this requirement, and in the upward direction, 316, 317, 325, 329, and 447 are also suitable for outdoor use.
Which type of stainless steel to choose for outdoor sculpture -304
304 stainless steel is a grade of stainless steel produced in accordance with American ASTM standards. 304 is equivalent to China’s 0Cr19Ni9 (0Cr18Ni9) stainless steel. 304 contains 19% chromium and 9% nickel.
304 stainless steel is universal stainless steel material, and its rust resistance is stronger than that of 200 series stainless steel materials. High-temperature resistance is also good, can reach 1000-1200 degrees. 304 stainless steel has excellent stainless corrosion resistance and good resistance to intergranular corrosion. For oxidizing acids, it is found in the experiment that 304 stainless steel has strong corrosion resistance in nitric acid with a concentration of ≤65% below the boiling temperature. It also has good corrosion resistance to alkaline solutions and most organic and inorganic acids.
304 stainless steel is one of the most commonly used materials in outdoor stainless steel sculptures.