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ISO 3575 Galvanized Extra Deep Drawing Cold Rolled Stabilized 05 Steel

What is Extra Deep Drawing Quality Stabilized 05 Steel? It is the material specification for hot dip galvanized cold rolled Stabilized extra deep drawing quality steels in the international standard ISO 3575. The extra deep drawing steel is more durable than 04 drawing galvanizing steel. The difference between 04 & 05 steels is that 05 steels are more draw-able steel and interstitial free steel with more good mechanical properties. This material grade is produced from CR5 steels defined in ISO 3574 standard.Chemical Composition: The chemical composition of Commercial steel 05 as defined in International Standard is explicated as below:

Maximum percentage of Carbon (C) is 0.02 percent.

Maximum percentage of Manganese (Mn) is 0.25 percent.

Maximum percentage of Phosphorous (P) is 0.02 percent.

Maximum percentage of Sulphur (S) is 0.02 percent.

Maximum percentage of Titanium (Ti) is 0.15 percent.

Remaining percentage is of iron (Fe) percentage and with few negligible impurities.

Mechanical Properties: ISO 3575 defines the minimum tensile strength for drawing quality 05 steels. The maximum yield strength is 200 N/mm2 and the maximum tensile strength is 350 N/mm2. The elongation is between 35 to 37 % based on the gauge length of the test piece.

Equivalent Material Grades: The Japanese standard defines SGCD4 which is comparably equivalent with ISO 05 steel. However EDDS is the equivalent materials as defined in American standard.

The application of 05 deep drawing special Stabilized steel is at places where the components are desired to be extra deep drawn and mechanical properties are meant not to be changed with extended period of time and stability of the material is ensured.

About

Engineer Ali Alvi is an industrial engineer who has post graduated from the NED University, then completed his Masters in Industrial Engineering from the University of Ontario. He has also served as an engineer in International Steel Ltd as A Cold rolling mill engineer.

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