Revised and updated by the German Institute for Standardization, the latest active version is DIN 17742:2020-12 . It serves as a vital blueprint for metallurgists, procurement teams, and quality assurance personnel across heavy industries like aerospace, chemical processing, and marine engineering.
Maintaining structural integrity under extreme heat .
For international procurement and engineering, it is common to cross-reference DIN 17742 alloys with other global standards. While direct one-to-one equivalents may vary depending on specific property requirements, the following are general guidelines:
Because DIN standards are copyrighted, the most reliable and legal way to obtain the official is through accredited standards distribution agencies. You can view the document scope and acquire the PDF directly through the ANSI Webstore or browse related European and international adoptions on platforms like the European Standards Online Store . din 17742 pdf
Searching for a "DIN 17742 PDF" is the first step toward precision metallurgy. This standard is not just a document; it is a tool for avoiding material failure, ensuring repeatable magnetic performance, and meeting contractual requirements.
Excellent creep strength for high-load applications like steam generators and gas turbines. Form Variations:
DIN 17742 is the cornerstone for demanding applications. The alloys it covers, identified by material numbers (e.g., ), are known for their exceptional strength and stability under extreme stress, making them indispensable for: Revised and updated by the German Institute for
For engineers, quality assurance managers, and procurement specialists, understanding this standard is crucial for ensuring the quality, safety, and performance of components used in extreme environments. This article provides a comprehensive overview of DIN 17742 and the practical information you need to find its official PDF documentation.
Standards evolve. The current active version of DIN 17742 is (issued July 2002). An older version (e.g., 1972 or 1988) may contain:
| Werkstoffnummer (W.-Nr.) | DIN Kurzzeichen (Short Name) | Key Chemical Composition (wt.%) | Key Characteristics & Applications | | :--- | :--- | :--- | :--- | | | NiCr15Fe | Ni 72%, Cr 14-17%, Fe 6-10%, C 0.15% max | Equivalent to Alloy 600 . High strength and oxidation resistance. Used in chemical processing, heat-treating equipment, and nuclear engineering. | | 2.4817 | LC-NiCr15Fe | Ni 72% min, Cr 14-17%, C 0.025% max | Low-carbon version of 2.4816, providing enhanced resistance to intergranular corrosion in high-temperature, aqueous, or corrosive environments. | | 2.4851 | NiCr23Fe | Ni 58% min, Cr 21-25%, Fe 10-15% | Excellent high-temperature oxidation resistance and good creep strength. Widely used in industrial furnaces, radiant tubes, and petrochemical crackers. | | 2.4647 | NiCr25FeAl3YC | Ni base, Cr 24-26%, Fe 8-11%, Al 1.7-2.4%, Y 0.05-0.12% | Highly creep-resistant, corrosion-resistant, and carbide-hardened. Used in gas turbines, combustion chambers, and afterburner components. | | 2.4642 | NiCr29Fe | Ni base, Cr 28-31%, Fe 7-11% | Designed for high-temperature service with good resistance to carburization and oxidation. Often used in ethylene cracking furnaces. | | 2.4867 | NiCr6015 | Ni 57% min, Cr 14-17%, Si 1-1.75%, Al 0.3% max | High electrical resistivity and good oxidation resistance. Used in high-load electrical resistors and electric heating appliances. | | 2.4658 | NiCr7030 | Ni 69% min, Cr 28-32%, Si 1.5% max | Excellent oxidation resistance up to 1200°C. Used in electric heating elements for industrial furnaces and household appliances. | | 2.4869 | NiCr8020 | Ni 75% min, Cr 19-21.5%, Si 0.5-1.5% | A nickel-chromium heating conductor alloy. High resistance to oxidation and carburization. Operates up to 1150°C. | | 2.4952 | NiCr20TiAl | Ni 65% min, Cr 18-21%, Ti 2-3%, Al 1-2% | A precipitation-hardening alloy with high strength at elevated temperatures. Used in gas turbine components, fasteners, and springs. | For international procurement and engineering, it is common
The standard covers several high-performance grades, often cross-referenced with international standards like or UNS . Alloy Grade Material No. (W-Nr.) UNS Equivalent Key Characteristics NiCr15Fe High oxidation resistance at elevated temperatures. NiCr23Fe Excellent resistance to oxidation and aqueous corrosion. NiCr20Ti Creep-resistant alloy often used in gas turbines. NiCr20AlSi Specialized for high electrical resistance and stability. Technical Properties and Applications
By providing this rigorous chemical specification, the standard serves as a foundational document for manufacturers, ensuring that semi-finished products like sheet, strip, bar, wire, and tube are made from materials with reliable and predictable properties. This, in turn, allows engineers to confidently select these materials for demanding applications in sectors like chemical processing, petrochemical plants, and furnace construction.