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AISI SAE 4140 Steel - JIS SCM440 - DIN 1.7225 - Songshun Steel Welding. 1.7225 alloy steel can be welded using all advanced techniques. But, the mechanical properties of it will be affected if it is welded in the heat treated condition, and post weld heat treatment should be performed. Heat Treatment. 1.7225 tool steel is heated at 845C(1550F) followed by quenching in oil. Before hardening, it can be scm440 wbelding AISI 4140 steel | 1.7225 | 42CrMo4 | SCM440 - OTAI Special Steel AISI 4140 Steel / 42CrMo4 steel is a Alloy Structural Steel belong to ASTM A29/A29M Steel Grade standard. And AISI 4140 used in Oil and Gas industry and Large Machinery Strutural.
SCM440 is medium carbon chromium molybdenum alloy steel, which is an alloy steel containing chromium and molybdenum. It has the advantages of stable composition, low harmful elements, high steel purity, small decarburization layer and few surface defects. It is easy to be spheroidized and has low cold cracking rate. It is usually hardened and tempered. The ultimate tensile strength is 850-1000 scm440 wbelding SCM440 / SCM 440 Datasheet, chemical composition analysis of scm440 wbelding SCM440 Round Bar SCM440 Flat Bar SCM440 Hollow Bar SCM440 Tube / Pipe SCM440 Sheet / Plate SCM440 Strip / Coil SCM440 Wire SCM440 Forging SCM440 Tube / Pipe SCM440 Fastener / Bolt / Nut / Screw Welding Parts SCM440 Steel-JIS G4105 Alloy steel Grade-Special steel China scm440 wbelding SCM440 steel china supplier and stock factory, Otai Special Steel supply in SCM440 round bar, plate, flat, hexagonal bar. SCM440 is a Chrome alloy structure steel, It contains 0.9-1.2% Cr, usual use in gears, pump shafts and tool holders.
SCM440 is specifically used in high-strength fasteners and has such advantages as stable components, low hazardous elements, high purity of steel content, small practical decarburized depth and few surface flaws; as well as easy spheroidizing annealing, low breakage rate in cold upsetting performance, stable quality in heat treatment and even hardness for a wide range of applications in scm440 wbelding