PRESS2010_EN

1148/1208

ーExcerpt from JIS G 4401（2000）/4404（2000）ーVーS0.030File, sand paperor lessJackbit, small punch, hand file, cutting-0.030tool, hand saws, razor,springor lessHand saws, gauge,cutting-tool, spring, 0.030die, workpiece holder, steel chiselor lessWood drill,chopper, steel chisel, spring, 0.030pen tip, die, gauge, sewing needleor less0.030or lessDie, gauge, spring, needle0.030or less0.030or lessSteel seal, die, spring0.030or less0.030or lessSteel seal, die, spring, snap ring0.030or lessSteel seal, die spring, snap ring0.030or lessSteel seal, die, snap ringCーーーーーPーーーーーVーーWーーーーーーーWCCS0.030or less0.030or less0.030or less0.030or less0.030or less0.030or less0.030or less0.030or lessP0.030or less0.030or less0.030or less0.030or less0.030or less0.030or less0.030or less0.030or lessーBlade, cutting tool, hand saw（1）Hand sawーFile, needle fileP0.030or less0.030or less0.030or less0.030or less　2. Brackets（SK＊＊）is for the old JIS steel grade, TC＊＊ is for ISO/FDIS 4957：1998 standard steel grade 1998.Unit：％Unit：％Unit：％1146Carbon tool steelsTC90TC80TC70Alloy tool steels−Cutting-tool steel1.20～1.301.00～1.101.00～1.100.75～0.850.75～0.851.10～1.201.10～1.301.30～1.50Alloy tool steels−Impact-resistant tool steel0.45～0.550.35～0.451.00～1.100.80～0.90CodeISOSymbolSK140（SK1）SK120（SK2）TC120SK105（SK3）TC105SK95（SK4）SK90SK85（SK5）SK80SK75（SK6）SK70SK65（SK7）SK60 Impurity in each steel grade should not be over the following value：Cu 0.25％, Cr 0.30％, Ni 0.25％. 1. SK75 and SK65 may be removed 5 years later during revision. Si0.50or less0.35or less0.35or less0.35or less0.35or less0.35or less0.35or less0.35or lessCodeSKS11SKS2SKS21SKS5SKS51SKS7SKS81SKS8 （1）Less than 0.20% vanadium is allowed to be added in SKS2 and SKS7. Impurity Ni should not exceed 0.25% （except SKS5 and SKS51） and impurity Cu should not exceed 0.25% in each steel grade.Si0.35or less0.35or less0.10～0.300.25or lessCodeSKS4SKS41SKS43SKS44 Impurity Ni, Cu should not exceed 0.25% in all steel grades. Impurity Cr should not exceed 0.20% in SKS43 and SKS44.1.30～1.500.10～0.351.15～1.250.10～0.351.00～1.100.10～0.350.90～1.000.10～0.350.85～0.950.10～0.350.80～0.900.10～0.350.75～0.850.10～0.350.70～0.800.10～0.350.65～0.750.10～0.350.60～0.700.10～0.350.55～0.650.10～0.35Chemical compositionSiChemical compositionNiーMn0.50or less0.80or less0.50or less0.50or less0.50or less0.50or less0.50or less0.50or lessChemical compositionNiS0.030or lessー0.030or lessー0.030or lessー0.030or lessーMn0.50or less0.50or less0.10～0.400.30or less0.10～0.500.030or less0.030or less0.030or less0.030or less0.030or less0.030or less0.030or less0.030or less0.030or less0.030or less0.030or less0.10～0.500.10～0.500.10～0.500.10～0.500.10～0.500.10～0.500.10～0.500.10～0.500.10～0.500.10～0.500.10～0.30（1）0.10～0.253.00～4.001.00～1.500.50～1.000.70～1.301.30～2.002.00～2.500.50～1.002.50～ー3.50ー0.10～ー0.10～0.200.25MnCr0.20～0.500.50～1.000.20～0.500.20～0.500.20～0.500.20～0.500.20～0.500.20～0.50Cr0.50～1.001.00～1.50Steel seal, die, spring, band saw, workpiece holder, cutting-tool, disc saw, gauge, needleSteel seal, die, spring, snap ring, disc sawLathe tool, cold-drawing die, center drillScrew tap, aiguille, facing cutter, die, thread-rolled dieDisc saw, band sawApplication（Reference）Application（Reference）Application（Reference）Steel chisel, punch, shears edgeGadder piston, heading setSteel chisel, heading setSteel Code and Chemical CompositionCarbon Tool Steels／Alloy Tool Steels