Round-section rods have a wide industrial application. They belong to the most commonly and widely used semi-finished materials as they can serve both as blanks for a ready-made product or a smaller semi-finished material (e.g., wire). These products are mostly used in electric furnace heaters. Nichrome wire may not be suitable for a heater of a powerful furnace while nichrome round bars withstand high current load due to a larger diameter.
Metotechnics offers nichrome rods and round bars. For purchasing these products please call us, send a request via e-mail or make an order on the website page with the price list.
The ways of manufacturing these products, grades and application recommendations are specified in the corresponding sections of this page. Also standards are referenced as they serve as important sources of technical information.
Grades
Rods and round bars are made of nichrome (this material is also called NiCr alloy, nickel-chromium alloy and chromium-nickel alloy) -a precision alloy. Usually NiCr 80 20 Zr (also called Ni80Cr20, Cr20Ni80 or Nikrothal® 80) and NiCr 60 15 Zr grades (also called Ni60Cr15, Cr15Ni60 and Nikrothal® 60) are used. They include zirconium (Zr) that makes the product more reliable. This is especially important for maximum working temperatures. Upon the customer’s request, rods of NiCr 80 20, NiCr 60 15 grades can be made, if it is planned to use them as heaters operated in average temperature modes.
Chemical composition of NiCr 80 20 Zr and NiCr 60 15 Zr precision materials with high resistance is regulated by GOST 10994-74 standard.
Production
Nichrome rods and round bars are produced by pressuring the blanks and technological rolling. In this case hot rolling is applied (the blanks are heated) and the received semifinished materials are called “hot-rolled” ones.
The products mentioned can be produced both in soft (annealed) and hard form. In some cases the surface is pickled upon the customer’s request.
Rod and round bar sizes, mechanical properties, supply condition, resistance and maximum working temperatures are regulated by GOST 12766.4-90 standard.
Very often round-section rods are called nichrome round bars. This is correct for semifinished materials with a rather large diameter (e.g., nichrome round bars of Ø 80 mm, 90 mm, 100 mm and higher). GOST 25501-82 does not provide a definition for blanks, but such term is often used in real practice.
Application
Nichrome rods are mainly applied for producing furnace round heaters and lead connections.
Prices
The nichrome rod and round bar prices, product range, accurate sizes and alloy grades are specified on Cost page.
Calculate the nichrome products weight
