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Technical Data of High Tensile PC Wire under BS 5896-1980 StandardNominal DiameterNominal Tensile StrengthTolerance on DiameterNominal Cross-SectionNominal MassSpecified Characteristic Breaking LoadSpecified Characteristic 0.1% Proof LoadLoad at 1% ElongationMinimum Elongation at max Load (Lo=200mm)RelaxationInitial Load (% of actual breaking load)Max relaxation after 1000hrsmmN/mm2mmmm2g/mKNKNKNRelax Class 1 (normal relax)Relax Class2 (low relax)416700.0412.698.921.017.517.93.5%60% 70% 80%4.5% 8% 12%1.0% 2.5% 4.5%177022.318.519.04.516200.0515.912525.821.421.95167019.615432.727.221.8177034.728.829.56167028.322247.339.940.2177050.141.642.67157038.530260.450.151.3167064.353.454.7 Technical Data of Uncoated Stress-Relieved PC Wire under ASTM A421-2002 StandardGradeNominal DiameterDiameter ToleranceNominal AreaNominal WeightMinimum Breaking StrengthMinimum Load at 1% Extension (Yield Strength)Minimum Elongation at Max Load (Lo=250mm)Maximum Relaxation Loss after 1000 hoursInitial Load 70%Initial Load 80%mm (in)mm (in)mm2 (in2)kg/1000m (lb/1000ft)KN (lbf)KN (lbf)%%Type WA4.88 (0.192)0.05 (0.002)18.70 (0.0290)146.42 (98.4)32.26 (7250)27.31 (6150)4.02.53.54.98 (0.196)19.48 (0.0302)153.86 (103.4)33.60 (7540)28.54 (6420)6.35 (0.250)31.67 (0.0491)248.61 (166.8)52.41 (11770)44.56 (10010)7.01 (0.276)38.59 (0.0598)302.66 (203.4)62.52 (14050)53.14 (11950)Type BA4.98 (0.196)0.05 (0.002)19.48 (0.0302)153.86 (103.4)32.24 (7244)27.41 (6163)4.02.53.56.35 (0.250)31.67 (0.0491)248.61 (166.8)52.41 (11770)44.56 (10010)7.01 (0.276)38.59 (0.0598)302.66 (203.4)62.52 (14050)53.14 (11950)