galvanized iron tinplate

Thickness*0.30 mm -1.60mmWidth**915 and 1220 mmInner Diameter (ID)508 mmOuter Diameter (OD) 800 mm- 2000mmFlatnessFlatness B or tabletop flatnessSurface FinishRegular Spangle, Zero spangle and Mini Spangle Skin passed or Non-skin passedSurface TreatmentChemical Coated / Resin Coated / No TreatmentZinc Coating Classes***Coating Designation Minimum Coating Mass Triple Spot TestZ 100 100 g/m2Z 120 120 g/m2Z 150 150 g/m2Z 180 180 g/m2Z 215 215 g/m2Z 250 250g/m2Z 275 275 g/m2EQUIVALENT StandardsISO3575/JISG3302 /PNS67 / ASTM A653Mechanical PropertiesT-bendOT (180° bending angle) Full HardCommercial QualityYield StrengthNo tension Test is required for hardness of 85 HRB or higher275 MPA (minimum)Hardness85 HRB (minium)57 HRB (maximum)