... composition,%Executive standardSiMnNiSnFePbZnMgCSPCuManganese cupronickel BMn0.6-0.6≤0.10.2-1.00.4-0.7-≤0.2--≤0.1≤0.03≤0.01≤ 0.1remainQ/SZD02-20072,size and ... Tolerances Unit: mm diameter0.03-0.10.1-0.30.3-0.60.6-1.01.0-3.03.0-6.0tolerances (±)advanced0.0030.0040.0070 ... ) elongation,% BMn0.6-0.6M>0.03~0.10225120.054±0.003Q/SZD02-2007>0.10~0.3021615>0.30~1.0020520>1.00~6.0019625 Product photosQualified ...