SACM645 steel is defined as Cr-M0-Al Nitriding steel as per JIS G4053 Standard.It has excellent wear resistance,high surface hardness and fatigue strength after nitriding.This material is generally supplied in annealed condition.SACM645 is usually used for high precision machine parts,typical use are cylinder lining, compressor parts,and hydraulic parts.
|SACM645||0.4-0.5||0.15-0.5||≤ 0.6||≤ 0.03||≤ 0.03||1.3-1.7||0.1-0.3||0.7-1.2|
|41CrAlMo7||0.38-0.45||≤ 0.4||0.4-0.7||≤ 0.025||≤ 0.035||1.5-1.8||0.2-0.35||0.8-1.2|
3.Heat Treatment & Mechanical Property
2.Three steps of temperature raising,holding time for thoroughly heated.
4.Tempering immediately after quenched
SACM645-Mechanical Property With Quenching and Tempering
|Tensile Strength||Yield Strength||Elongation||Reduction of Area||Impact Charpy-V|
4.Supply Size & Condition
|Form of Supply||Size(mm)|
|Square bar||Thinkness:Max 500|
|Flat bar/Blcoks||Thickness :120-500
Heat treatment:Normalized / Annealed
Surface finish:Black / Rough turned / Peeled