High Tensile 4140 Induction Hardened Chrome Bar
high tensile 4140 induction hardened chrome bar made from chrome plated steel are typically used in applications where there are heavy duty conditions – often corrosive. The steel contains increased levels of alloying elements which delivers a high grade steel with superior tensile strength exhibiting good machining. 42CrMo4 chrome plated bar is manufactured from low-alloy chromium-molybdenum steel and supported by an induction hardened case offering greater strength and resistance to mechanical damage from external impact. It is used in applications requiring greater yield strength in combination with greater surface impact resistance. Australia AS 1444 – 1996 4140 Germany W.Nr 1.7223 41CrMo4 W.Nr 1.7225 42CrMo4 Great Britain BS970 – Part 3 – 1991 709M40 BS970 – 1955 EN19A Japan JIS G 4105 SCM 440 USA ASTM A29/A29M – 91 4140 SAE/AISI 4140 UNS G41400 Chemical Composition (Base Material) Min. % Max % Carbon 0.36 0.44 Silicon 0.10 0.40 Manganese 0.65 1.10 Chromium 0.75 1.20 Molybdenum