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17-4pH Stainless Steel Chemical Composition & Properties, Grades, Tables and Pdf

The 17-4 ph stainless steel, which is notable as Type 630 precipitation-hardening martensitic stainless steel alloy, is an alloy of nickel, chromium and molybdenum. Its chemical composition generally consists of about 15-17.5% chromium, 3-5% nickel and 3-5% copper with a lower percentage of niobium or tantalum of 0.15-0.45%, and molybdenum, manganese, silicon, phosphorus, sulfur and carbon added in small amounts. This alloy enables outstanding corrosion, high strength, and good mechanical, it is fitting for different fields of use, such as aerospace output, chemically solid equipment, and firearms. As for the common grades of 17-4PH, we'd like to mention the following: 17-4PH H1150, 17-4PH H900. Its properties include high strength and toughness, as being able to resist corrosion in different situations, mild as well as the severe ones. One may consult training manuals, including tables and PDF files containing the facts and composition of the chemicals listed for further information and analysis.

17-4pH Stainless Steel Chemical Composition And Grade Table

This is a precipitation hardening stainless steel with martensitic structure, which is also known as 17-4 pH stainless steel. The chemical composition of fine woven fabrics is usually about 15-17% chromium, 3-5% nickel, 3-5% copper, 0.15-0.45% niobium and 0.15-0.30% nitrogen. Its composition also involves trace levels of manganese, silicon, phosphorus and sulfur and carbon. Such incorporation culminates in a steel that is highly corrosion resistant, with strong strength, good toughness, and relatively low cost of fabrication. 17-4 stainless steel pH is applied in various industries where quality is essential, for instance, space industry, chemical processing, and oil and gas production.

17-4pH Stainless Steel
Elements Fe Cr Ni Cu Mn Si Ta Nb Nb+Ta C P S
Min (%) - 15.0 3.0 3.0 - - - - 0.15 - - -
Max (%) 73 17.5 5.0 5.0 1.0 1.0 0.45 0.45 0.45 0.070 0.040 0.030

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