Materials list
The materials the calculators know about, with other names you may see on the stock label, typical hardness and density. Each one links to its cutting speeds and to the weight calculator.
Turn on Detailed mode to see other names and equivalents. Densities are typical values (EST); real bar varies slightly by maker. Trade names are used only to describe materials and belong to their owners.
| Material | Family | Other names | Hardness | Density g/cm³ EST | |
|---|---|---|---|---|---|
| Free-cutting mild steel – EN1A / 230M07 | Free-cutting steel | EN1A, 230M07, 1215, 12L14, EN1A leaded, free cutting steel, free machining steel, 11SMn30 | ~120–170 HB | 7.85 | Speeds · Weight |
| Mild steel – EN3B / 070M20 / S275 | Mild / low-carbon steel | EN3, EN3B, 070M20, S275, S275JR, S355, 1018, 1020 | ~120–180 HB | 7.85 | Speeds · Weight |
| Medium-carbon steel – EN8 / 080M40 / 1045 | Medium-carbon steel (EN8 / A105 / LF2 class) | EN8, 080M40, 1045, C45, 1.0503, CK45, medium carbon, EN9 | ~170–230 HB | 7.85 | Speeds · Weight |
| ASTM A105 forged carbon steel (forged fittings) | Medium-carbon steel (EN8 / A105 / LF2 class) | A105, A105N, SA105, SA-105, forged carbon steel | ≤ 187 HBW (spec maximum) | 7.85 | Speeds · Weight |
| ASTM A350 LF2 low-temperature carbon steel | Medium-carbon steel (EN8 / A105 / LF2 class) | LF2, A350, A350 LF2, LF2 CL1, LF2 CL2, SA350, LTCS, low temp carbon steel | ≤ 197 HBW (spec maximum – to be confirmed) | 7.85 | Speeds · Weight |
| ASTM A106 Grade B seamless pipe | Medium-carbon steel (EN8 / A105 / LF2 class) | A106, A106B, A106 Gr B, SA106, A53, A53 B, API 5L B, carbon steel pipe | ~140–180 HB (typical, not specified) | 7.85 | Speeds · Weight |
| ASTM A516 Grade 70 pressure-vessel plate | Medium-carbon steel (EN8 / A105 / LF2 class) | A516, A516-70, A516 Gr70, A516 70, SA516, P355GH, pressure vessel plate | ~140–190 HB (typical, not specified) | 7.85 | Speeds · Weight |
| AISI 4130 chromoly – 25CrMo4 | Alloy / Cr-Mo steel, annealed or normalised (≤ ~250 HB) | 4130, 25CrMo4, 1.7218, chromoly, chrome moly, T45 | ~150–220 HB (normalised) | 7.85 | Speeds · Weight |
| AISI 4140 / EN19 (709M40), annealed | Alloy / Cr-Mo steel, annealed or normalised (≤ ~250 HB) | 4140, EN19, 709M40, 42CrMo4, 1.7225, 4140 annealed | ~180–230 HB | 7.85 | Speeds · Weight |
| AISI 4140 / EN19T pre-hardened (Q&T) | Alloy steel, hardened & tempered (~250–350 HB, e.g. EN24T) | EN19T, 4140HT, 4140 PH, 4140 prehard, 4140 Q&T, 709M40T | ~28–32 HRC | 7.85 | Speeds · Weight |
| AISI 4340 / EN24 (817M40), annealed | Alloy / Cr-Mo steel, annealed or normalised (≤ ~250 HB) | 4340, EN24, 817M40, 34CrNiMo6, 1.6582 | ~200–240 HB | 7.85 | Speeds · Weight |
| EN24T / 4340 hardened & tempered (T condition) | Alloy steel, hardened & tempered (~250–350 HB, e.g. EN24T) | EN24T, 817M40T, 4340 Q&T, 4340 HT, EN16T, 605M36T | ~248–302 HB | 7.85 | Speeds · Weight |
| ASTM A182 F5 (5Cr-½Mo) | Alloy / Cr-Mo steel, annealed or normalised (≤ ~250 HB) | F5, A182 F5, F5a, P5, A335 P5, 5Cr, 1.7362, K41545 | 143–217 HBW | 7.85 | Speeds · Weight |
| ASTM A182 F9 (9Cr-1Mo) | Alloy / Cr-Mo steel, annealed or normalised (≤ ~250 HB) | F9, A182 F9, P9, A335 P9, 9Cr, K90941 | 179–217 HBW | 7.85 | Speeds · Weight |
| ASTM A182 F11 / A335 P11 (1¼Cr-½Mo) | Alloy / Cr-Mo steel, annealed or normalised (≤ ~250 HB) | F11, A182 F11, P11, A335 P11, 13CrMo4-5, 1.7335, K11572 | Cl1 121–174, Cl2 143–207, Cl3 156–207 HBW | 7.85 | Speeds · Weight |
| ASTM A182 F22 / A335 P22 (2¼Cr-1Mo) | Alloy / Cr-Mo steel, annealed or normalised (≤ ~250 HB) | F22, A182 F22, P22, A335 P22, 10CrMo9-10, 1.7380, K21590 | Cl1 ≤170, Cl3 156–207 HBW | 7.85 | Speeds · Weight |
| ASTM A182 F91 / A335 P91 (9Cr-1Mo-V) | Alloy / Cr-Mo steel, annealed or normalised (≤ ~250 HB) | F91, A182 F91, P91, A335 P91, T91, X10CrMoVNb9-1, 1.4903, K90901 | 190–248 HBW | 7.85 | Speeds · Weight |
| O1 gauge plate / tool steel (annealed) – 1.2510 | Tool steel, annealed | O1, 1.2510, 100MnCrW4, gauge plate, ground flat stock, BO1 | ~190–220 HB annealed | 7.80 | Speeds · Weight |
| Silver steel (BS 1407 / 1.2210), annealed | Tool steel, annealed | silver steel, BS1407, 1.2210, 115CrV3, drill rod, W1 | ~200–230 HB annealed | 7.80 | Speeds · Weight |
| D2 tool steel (annealed) – 1.2379 | Tool steel, annealed | D2, 1.2379, X153CrMoV12, BD2, SKD11 | ~220–255 HB annealed | 7.70 | Speeds · Weight |
| Hardened steel 40–50 HRC | Hardened steel 40–50 HRC | hardened, hardened steel, HRC, 45 HRC, through hardened, hardened tool steel, case hardened | 40–50 HRC | 7.85 | Speeds · Weight |
| Grey cast iron – EN-GJL-250 / Meehanite® type | Cast iron | cast iron, grey iron, gray iron, GJL, GG25, EN-GJL-250, Meehanite, continuous cast iron | ~180–230 HB | 7.20 | Speeds · Weight |
| Ductile (SG) iron – EN-GJS | Cast iron | SG iron, ductile iron, GJS, GGG40, spheroidal graphite | ~160–250 HB | 7.10 | Speeds · Weight |
| Free-machining stainless 303 – 1.4305 | Free-machining austenitic stainless (303) | 303, 1.4305, S30300, 303 stainless | ~160–230 HB | 8.00 | Speeds · Weight |
| 304 / 304L stainless (A182 F304 / F304L) | Austenitic stainless (304 / 316 / 321) | 304, 304L, F304, F304L, A182 F304, 1.4301, 1.4307, S30400 | ~150–200 HB | 8.00 | Speeds · Weight |
| 316 / 316L stainless (A182 F316 / F316L) | Austenitic stainless (304 / 316 / 321) | 316, 316L, F316, F316L, A182 F316, 1.4401, 1.4404, S31600 | ~150–200 HB | 8.00 | Speeds · Weight |
| 321 stainless (A182 F321) | Austenitic stainless (304 / 316 / 321) | 321, F321, A182 F321, 321H, F321H, 1.4541, S32100 | ~150–200 HB | 8.00 | Speeds · Weight |
| 6Mo super-austenitic – 254 SMO® / A182 F44 (S31254) | Super-austenitic 6Mo stainless (254 SMO® / AL-6XN® / F44) | F44, A182 F44, 254, 254SMO, 254 SMO, S31254, 1.4547, 6Mo | ~200–230 HB | 8.00 | Speeds · Weight |
| Lean duplex – LDX 2101® (S32101) / 2304 (S32304) | Lean duplex stainless (LDX 2101® / 2304) | lean duplex, LDX2101, LDX 2101, 2101, S32101, 1.4162, 2304, S32304 | ~220–260 HB | 7.80 | Speeds · Weight |
| Duplex 2205 – A182 F51 / F60 (1.4462) | Duplex stainless 2205 (F51 / F60 / 1.4462) | 2205, F51, A182 F51, F60, A182 F60, S31803, S32205, 1.4462 | ~230–290 HB | 7.80 | Speeds · Weight |
| Super duplex 2507 – A182 F53 (1.4410) | Super duplex (2507 / Zeron® 100 / F53 / F55) | 2507, F53, A182 F53, S32750, 1.4410, super duplex, SAF 2507, SDSS | ~250–310 HB | 7.80 | Speeds · Weight |
| Zeron® 100 super duplex – A182 F55 (1.4501) | Super duplex (2507 / Zeron® 100 / F53 / F55) | Zeron, Zeron 100, F55, A182 F55, S32760, 1.4501, super duplex | ~250–310 HB | 7.80 | Speeds · Weight |
| 17-4PH stainless (630 / 1.4542) | Precipitation-hardening stainless (17-4PH / 15-5PH) | 17-4, 17-4PH, 17/4, 17-4 PH, 630, 1.4542, S17400, A564 630 | Cond A ~30–38 HRC; H1150 ~28–37 HRC | 7.80 | Speeds · Weight |
| 15-5PH stainless (1.4545) | Precipitation-hardening stainless (17-4PH / 15-5PH) | 15-5, 15-5PH, 15/5, S15500, 1.4545, XM-12 | Cond A ~30–38 HRC | 7.80 | Speeds · Weight |
| Alloy 400 (MONEL® 400) – N04400 | Nickel-copper (Alloy 400 / K-500) | 400, alloy 400, Monel, Monel 400, N04400, 2.4360, NA13 | ~110–150 HB annealed | 8.80 | Speeds · Weight |
| Alloy K-500 (MONEL® K-500), annealed – N05500 | Nickel-copper (Alloy 400 / K-500) | K500, K-500, Monel K500, Monel K-500, N05500, 2.4375, NA18 | ~140–190 HB annealed | 8.44 | Speeds · Weight |
| Alloy K-500 (MONEL® K-500), age-hardened | Nickel-copper (Alloy 400 / K-500) | K500 aged, K-500 aged, K500 age hardened, Monel K500 aged | ~25–35 HRC | 8.44 | Speeds · Weight |
| Alloy 600 (INCONEL® 600) – N06600 | Ni-Fe-Cr / Ni-Cr solution alloys (Alloy 600 / 825) | 600, alloy 600, Inconel, Inconel 600, N06600, 2.4816, NA14 | ~150–200 HB annealed | 8.47 | Speeds · Weight |
| Alloy 825 (INCOLOY® 825) – N08825 | Ni-Fe-Cr / Ni-Cr solution alloys (Alloy 600 / 825) | 825, alloy 825, Incoloy, Incoloy 825, N08825, 2.4858, NA16 | ~150–200 HB annealed | 8.14 | Speeds · Weight |
| Alloy 625 (INCONEL® 625) – N06625 | Ni-Cr-Mo corrosion alloys (Alloy 625 / C-276 / C-22) | 625, alloy 625, Inconel 625, N06625, 2.4856, NA21 | ~180–250 HB | 8.44 | Speeds · Weight |
| Alloy C-276 (HASTELLOY® C-276) – N10276 | Ni-Cr-Mo corrosion alloys (Alloy 625 / C-276 / C-22) | C276, C-276, Hastelloy, Hastelloy C276, Hastelloy C-276, N10276, 2.4819 | ~180–220 HB | 8.89 | Speeds · Weight |
| Alloy C-22 (HASTELLOY® C-22®) – N06022 | Ni-Cr-Mo corrosion alloys (Alloy 625 / C-276 / C-22) | C22, C-22, Hastelloy C22, Hastelloy C-22, N06022, 2.4602 | ~180–220 HB | 8.69 | Speeds · Weight |
| Alloy 718 (INCONEL® 718) – N07718 | Age-hardened nickel superalloys (718 / Waspaloy / Nimonic® 80A) | 718, alloy 718, Inconel 718, N07718, 2.4668 | Aged ~36–44 HRC; annealed lower | 8.19 | Speeds · Weight |
| Waspaloy – N07001 | Age-hardened nickel superalloys (718 / Waspaloy / Nimonic® 80A) | Waspaloy, N07001, 2.4654 | Aged ~34–40 HRC | 8.19 | Speeds · Weight |
| NIMONIC® 80A (Alloy 80A) – N07080 | Age-hardened nickel superalloys (718 / Waspaloy / Nimonic® 80A) | Nimonic, Nimonic 80A, 80A, alloy 80A, N07080, 2.4952 | Aged ~30–36 HRC | 8.19 | Speeds · Weight |
| Cobalt-chrome / STELLITE® 6 type | Cobalt-chrome / Stellite® type alloys | Stellite, Stellite 6, cobalt chrome, CoCr, CoCrMo, ASTM F75, R30006, cobalt alloy | ~36–45 HRC | 8.40 | Speeds · Weight |
| Titanium CP Grade 2 – R50400 (3.7035) | Titanium, commercially pure | Gr2, Grade 2, Ti Gr 2, CP titanium, CP2, commercially pure titanium, R50400, 3.7035 | ~160–200 HB | 4.51 | Speeds · Weight |
| Titanium Ti-6Al-4V Grade 5 – R56400 (3.7165) | Titanium alloy (Ti-6Al-4V) | Ti64, Ti-6Al-4V, 6Al4V, 6Al-4V, Grade 5, Gr5, Ti Gr 5, R56400 | ~30–36 HRC | 4.43 | Speeds · Weight |
| Tungsten heavy alloy / copper-tungsten | Tungsten heavy alloy / copper-tungsten | tungsten, heavy alloy, WHA, CuW, copper tungsten, W-Cu, W70Cu30, W75Cu25 | varies by grade | 15.00 | Speeds · Weight |
| Aluminium 6082 / 6061 (T6) | Aluminium, wrought | 6082, 6061, HE30, HE20, aluminium, aluminum, ally, alu | ~90–95 HB | 2.70 | Speeds · Weight |
| Aluminium 2011 free-machining (T3) | Aluminium, wrought | 2011, FC1, free machining aluminium, free cutting aluminium | ~95 HB | 2.84 | Speeds · Weight |
| Aluminium 7075 (T6) | Aluminium, wrought | 7075, 7075-T6, aircraft aluminium | ~150 HB | 2.81 | Speeds · Weight |
| Cast aluminium LM25 / LM6 | Aluminium, cast (silicon alloys) | LM25, LM6, cast aluminium, cast aluminum, A356 | ~60–80 HB | 2.68 | Speeds · Weight |
| Free-cutting brass CZ121 (CW614N) | Brass (free-cutting) | CZ121, CW614N, brass, free cutting brass, CZ120, 360 brass, C36000 | ~100–160 HB | 8.47 | Speeds · Weight |
| Phosphor bronze PB102 / PB1 | Bronze & gunmetal | phosphor bronze, PB1, PB102, CW451K, PB2, bronze | ~80–180 HB | 8.86 | Speeds · Weight |
| Leaded gunmetal LG2 (CC491K) | Bronze & gunmetal | LG2, gunmetal, CC491K, leaded gunmetal, SAE 660, bearing bronze | ~65–80 HB | 8.80 | Speeds · Weight |
| Nickel-aluminium bronze CA104 (CW307G) | Bronze & gunmetal | CA104, CW307G, aluminium bronze, NAB, nickel aluminium bronze, AB2 | ~170–230 HB | 7.58 | Speeds · Weight |
| Copper C101 / C106 | Copper | copper, C101, C106, CW004A, CW024A, ETP | ~45–90 HB | 8.94 | Speeds · Weight |
| Acetal (POM, e.g. Delrin®) | Engineering plastics | acetal, POM, Delrin, polyacetal, POM-C, POM-H | — | 1.41 | Speeds · Weight |
| Nylon (PA6 / PA66) | Engineering plastics | nylon, PA6, PA66, polyamide | — | 1.14 | Speeds · Weight |
| PTFE | Engineering plastics | PTFE, Teflon | — | 2.20 | Speeds · Weight |
| Acrylic (PMMA) | Engineering plastics | acrylic, PMMA, Perspex, Plexiglas | — | 1.19 | Speeds · Weight |
Which family is it?
The families follow the usual cutting-tool groups: steels, stainless, cast iron, non-ferrous metals, heat-resistant alloys and hardened steel. If you don’t know exactly what a bar is, choose the family it most looks like and start at the slow end of the speed range.