Featured patents

Lead Free Free-Cutting Steel and Its Use
US 08540934 B2, Sept. 24, 2013, Lars Karlsson et al. / Sandvik Intellectual Property AB (Sandviken, SE)
Lead free steel consisting of the following composition in percent by weight…

Steel for Surface Hardening for Machine Structural Use and Part for Machine Structural Use
US 08802005 B2, Aug. 12, 2014, Kei Miyanishi et al. / Nippon Steel & Sumitomo Metal Corporation (Tokyo, JP)
A steel part for machine structural use, said steel part being nitrided, then…

Patentorg has 2 documents under Over 0.05 Percent Sulfur, Over 0.04 Percent Phosphorus or Sulfur or Phosphorus Added in Any Amount to Promote Machinability Patents.

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