ISO 3574 Extra Deep Drawing Quality Cold Rolled CR5 Steel

What are CR5 Steels? CR5 steels are extra deep drawing quality stabilized interstitial free, & Aluminum Killed (non-aging) mild steel as discovered in ISO 3574 and are categorized equivalent to SPCG steels in JIS G3141 standard. The only change between CR4 & CR5 steels is that CR5 steels are interstitial free steel and are more good and durable in mechanical properties as compare to CR4 steel.Dimensional Range of CR5 Steel: CR5 Steels is obtainable from thickness series 0.25 mm to 4.0 mm. The width is typically 950 mm, 1219 mm, 1500 mm and 2000 mm.

Chemical Composition of CR5 Steel:  The chemical composition of CR5 Steels is limited by 0.06 percent of Carbon maximum, 0.25 percent of manganese maximum,  0.020 percent of Sulphur maximum, 0.02 percent of Phosphorous maximum, 0.02 percent of titanium maximum and remaining percentage is of iron (Fe) with negligible impurities.

Mechanical Properties of CR5 Steel: The mechanical properties of CR5 Steels are associated to SPCG steels, but conflicting the JIS G3141 standard, the ISO 3574 standard does not sort the lower range of tensile strength but it determines the maximum range. The utmost yield strength is 190 MPa, the utmost tensile strength is 350 MPa and least elongation is 38 percent.

As compare to CR4 Steel, this grade of steel is more precious & satisfactory for ultra deep drawing operations.