SAE 5140 is a Chrome alloy structure steel. It contains 0.9-1.2% Cr, usual use in gears, pump shafts and tool holders. The standard Hardness is 18-22HRc.
Chemical composition of SAE 5140 SCM420 STEEL PIPES
Application of SAE 5140 SCM420 STEEL PIPES
JIS SAE 5140 is commonly used in oil and gas sector. Typical applications as Connecting rod, Pin seam jacketed conveyor, gears, stem assembly, pump shaft and the tool holder.
Forging of SAE 5140 STEEL PIPES SCM420 STEEL PIPES
At 1200°C start forging, keep the forging temperature no below 850°C
Annealing of SAE 5140 SCM420 STEEL PIPES
Heat to 850°C slowly, ensure heat thoroughly. Then cool in the furnace.
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