Details: coin blankscategory specification bid requirement (allowed values)generic type nickel brass coin blankmaterial (alloy composition) copper: 75% ± 1%, zinc: 20% ± 1% and nickel: 5% ± 0.5%blanking diameter (in mm) 25.00 ± 0.05 mmrimmed diameter (in mm) 24.75 ± 0.05 mmpiece weight 6.74 grams ± 2.5%weight tolerance on 100 pieces 674 grams ± 2%rim profile rounded with radius of 2.0 mmcenter thickness 1.61 mm (+/- 0.03%)rim thickness 1.84 mm +/- 0.05 mmblank hardness 110 to 125 vpncertification agreed to furnish all the test reports and certificates to buyer/consignee on demand yes
Sector: Economics and Statistics