HOME THE COMPANY PRODUCTS DOWNLOAD WHERE WE ARE CONTACTS Home / Products / Automatic steels Automatic steel Steel not intended for heat treatment and quenching Automatic steels are defined as those steels whose machinability during the turning phase is improved with the addition of the element sulfur (S) which, when combined with manganese, forms sulphides that allow the chip to be broken up. This process inevitably changes the mechanical characteristics, worsens resilience and makes cold deformation not recommended. The addition of lead (Pb), which melts at low temperatures, further facilitates workability by acting as a lubricant between steel and tool, without altering the mechanical characteristics. The most common automatic steels 11SMn30 / 37 and 11SMnPb30 / 37 are not suitable for heat treatment and even if some users subject them to case-hardening the results are limited or even nil. Any additions of bismuth (Bi) and tellurium (Te) bring these steels to their maximum performance at high speeds, among other things optimizing the gloss of the turned surface. 36SMnPb14 also known as PR80 as it contains more carbon (C) than the previous ones, it is indicated for remediation treatments. Not intended for heat treatment EUROPEAN INITIALS NUMBER WERKSTOFF DATASHEET 11SMn30 No. 1.0715 No. 1.0715 11SMn37 (AVZ) No. 1.0736 No. 1.0736 11SMnPb30 No. 1.0718 No. 1.0718 11SMnPb37 (AVP) No. 1.0737 No. 1.0737 11SMnPb30 + Bi + Te No. 1.0718 11SMnPb30 + Te + Bi - 1.0718 11SMnPb37 + Bi + Te No. 1.0737 11SMnPb37 + Te + Bi - 1.0737 From reclamation EUROPEAN INITIALS NUMBER WERKSTOFF DATASHEET 36SMnPb14 (PR80) No. 1.0765 No. 1.0765 On request EUROPEAN INITIALS NUMBER WERKSTOFF DATASHEET 35S20 No. 1.0726 No. 1.0726 46S20 No. 1.0727 No. 1.0727 38SMnPb28 + Te No. 1.0761 No. 1.0761 38SMn28 No. 1.0760 No. 1.0760 The supply of further other free-cutting steels is evaluated at the request stage. Facebook TRAFILATI FABRIZIO srl | 12, Via Calvenzana Inferiore - Calvenzana - 23849 Rogeno (LC) - Italy | PI 02540270135 | Tel. +39 031 866677 | Fax. +39 031 3581000 | info@trafilatifabrizio.it | Legal information | Privacy | Cookie Policy | Sitemap Powered by Pagine Gialle - SmartSite