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GROOVING Technical DataRecommended Grades, Cutting Speeds Vc [ft/min] and Feed f [inch/rev]MaterialGroupPSteelMStainlessSteelKCast IronN (K)Non-FerrousMetalsS (M)HeatResistantMaterial<strong>Vargus</strong> No.1MaterialHardnessBrinell HBVc [ft/min]CoatedVTX VKP/VKX VHXFeed[inch/rev]Low carbon (C=0.1-0.25%) 125 459 - 656 459 - 656 66 - 164 0.01182 Unalloyed steel Medium carbon (C=0.25-0.55%) 150 393 - 590 393 - 590 49 - 131 0.00593 High Carbon (C=0.55-0.85%) 170 361 - 590 361 - 590 49 - 98 0.0024 Non hardened 180 328 - 508 328 - 508 66 - 148 0.0098Low alloy steel5 Hardened 275 295 - 475 295 - 475 33 - 82 0.0039(alloying elements ≤ 5%)6 Hardened 350 262 - 443 262 - 443 33 - 82 0.0027 High alloy steel Annealed 200 229 - 377 213 - 377 0.00798 (alloying elements >5%) Hardened 325 164 - 328 164 - 328 0.0029 Low alloy (alloying elements 5%) 225 66 - 131 82 - 131 66 - 131 0.00211 Stainless steel Non hardened 200 229 - 393 262 - 393 0.007912 FeriticHardened 330 197 - 311 180 - 311 0.00213 Stainless steel Austenitic 180 229 - 328 197 - 328 0.007914 AusteniticSuper Austenitic 200 131 - 295 164 - 295 0.00215 Stainless steel Non hardened 200 262 - 361 197 - 262 0.007916 Cast feriticHardened 330 213 - 361 148 - 213 0.00217 Cast austenitic Austenitic 200 279 - 328 164 - 229 0.007918 Hardened 330 197 - 328 131 - 197 0.00228 Ferritic (short chips) 130 229 - 393 197 - 262 0.0079Malleable Cast iron29 Pearlitic (long chips) 230 229 - 393 197 - 262 0.005930 Low tensile strength 180 229 - 393 197 - 262 0.0079Grey cast iron31 High tensile strength 260 197 - 328 131 - 229 0.003932 Feritic 160 164 - 262 197 - 262 0.0079Nodular SG iron33 Pearlitic 260 197 - 295 229 - 295 0.003934 Aluminium alloys Non aging 60 328 - 787 262 - 787 98 - 197 0.015735 WroughtAged 100 262 - 557 328 - 557 82 - 164 0.003936 Cast 75 328 - 492 328 - 492 82 - 164 0.0098Aluminium alloys37 Cast & aged 90 262 - 393 197 - 328 66 - 131 0.005938 Aluminium alloys Cast Si 13-22% 130 328 - 492 328 - 492 49 - 98 0.005939 Copper andBrass 90 262 - 656 262 - 656 49 - 115 0.007940 copper alloys Bronze and non leaded copper 100 262 - 656 262 - 656 49 - 115 0.005919Annealed (Iron based) 200 148 - 197 82 - 148 0.007920 High temperature Aged (Iron based) 280 115 - 164 66 - 98 0.00221 alloysAnnealed (Nickel or Cobalt based) 250 66 - 98 49 - 66 0.00222 Aged (Nickel or Cobalt based) 350 49 - 82 33 - 49 0.00223 Pure 99.5 Ti 400Rm 459 - 557 197 - 328 0.0039Titanium alloys24 α+β alloys 1050Rm 164 - 229 131 - 164 0.002H (K)HardnedMaterial2545-50HRc 148 - 197 66 - 131 0.0008Extra hard steel Hardened & tempered26 51-55HRc 131 - 164 66 - 115 0.0008Grades and Their ApplicationGrade Application Type SampleVTXGeneral use carbide grade. A tough sub-micronsubstrate with TiAlN coating. Provides good fracturetoughness and excellent wear resistance.VKXSuperior general purpose grade, excellent in steels andstainless steels, recommended for rigid cutting conditionsTiN coated.Grade Application Type SampleVKPVHXGeneral use carbide grade.TiN coatedGeneral use HSS gradeFor machining at low cutting speed.TiN coated15
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