KUSHAL METAL & STEEL INDUSTRIES

www.kushalmetal.com www.berylliumcopper.in 25 46 Round Bars Impact toughness Test temerature Impact energy, Charpy-V, min) O 20 C 35 Plate thickness (mm) Round bars diameter (mm) Hardness (HBW) 6-350 151-353 430-490 General Product Description ® Toolox 46 round bar is a steel delivered already heat treated to a very high hardness. ® The chemical composition is based on the successful Toolox 44 product but with a modified chemical composition making this a perfect choice for the most demanding hot work tooling applications. Despite the high hardness, machining can be carried out smoothly with normal carbide tooling. If necessary the surface properties can be further enhanced with nitriding and PVD. Dimension Range ® Toolox 46 round bars is available in diameters 151.0 - 353.0 mm. Mechanical Properties Product Diameter (mm) 1) Hardness (HBW) ® Toolox 46 round bar 151.0 - 353.0 430 - 490 1) Hardness is measured, according to EN ISO 6506-1. Bar hardness is measured on a milled surface, with indents positioned as impact test according to EN 10083. Impact Properties Product 1) Min. impact energy for longitudinal testing, Charpy V 10x10 mm test specimen ® Toolox 46 round bar 11 J / 20 °C 1) Impact testing according to EN 10083. Ultrasonic testing Ultrasonic inspection is carried out according to: EN 10228-3 with extra demands according to specification SSAB V6. Tolerances ® Tolerances for Toolox round bars are according to EN 10060. Delivery Conditions Quenched and Tempered at a minimum temperature of 590 °C. ® On delivery from SSAB, Toolox material meet the following specifications:  Free from mill scale  Not repair welded Fabrication and Other Recommendations Welding, bending and machining For information concerning welding and fabrication, see SSAB’s brochures on www.ssab.com or consult Tech Support. Appropriate health and safety precautions must be taken when welding, cutting, grinding or otherwise working on the product. Grinding, especially of primer coated products, may produce dust with high particle concentration. Surface Hardening Toolox is an excellent steel for different type of surface hardening. The high yield strength and ductility of Toolox make it an ideal base material Microcracks in the hardened layer stops when reaching the base material. Surface hardening such as laser or induction when done in the right way only changes the properties locally. The steel below the hardened layer keeps its original properties intact. Nitriding and surface coatings represent a very interesting way to increase hardness, lower friction and some cases improve corrosion resistance When done below 590 °C the material properties are not affected. Chemical composition C Si Mn P S Cr Ni Mo V Ti Cu Al Nb B N CEV .343 1.04 .77 .008 .001 1.49 1.19 2.00 .14 .012 .03 .003 .018 .0014 .003 1.28