PREMIUM CARBIDE GRADES AND TABLES

We offer a variety of carbide for you to purchase directly from us, which is yet another way we strive to be your preferred go-to resource. We would be happy to discuss your purchase and help you determine the grade of carbide needed. We offer only the highest quality carbide available on the market today. We won’t waste your time with inferior materials. We understand the value of quality and performance, and use these grades to manufacture our own high-performance cutting tools.

The raw material that is used to manufacture your tool is just as important as the design of the tool itself. By using inferior materials, the tool life will be significantly decreased. We will never try to profit by using sub-par materials. We put 100% into every tool and the results speak for themselves.

HIGH-SPEED TOOL STEEL (CHEMISTRY OF CONVENTIONAL MATERIAL TO ASTM A600 SPECIFICATIONS)
TRADITIONAL CARBON C CHROMIUM Cr TUNGSTEN W MOLYBDENUM Mo VANADIUM V COBALT Co MAXIMUM ANNEALED Hb TYPICAL TEMPERED HrC
M-2 0.83 4.15 6.15 5.10 1.95 255 64
M-4 1.30 4.25 5.85 4.75 4.10 255 65
M-7 1.02 3.75 1.75 8.60 1.90 260 64
M-42 1.10 3.90 1.60 9.50 1.20 8.25 277 67
Powdered Metal Carbon C Chromium Cr Tungsten W Molybdenum Mo Vanadium V Cobalt Co Maximum Annealed Hb Typical Tempered HrC
PM M-4 1.42 4.00 5.50 5.25 4.00 255 65
PM M-48 1.50 4.00 9.75 5.25 3.10 9.00 310 68
PM T-15 1.60 4.00 12.00 4.90 5.00 275 66
HIGH-SPEED STEEL HEAT TREATING
GRADE ANNEALING TEMP (F°) PRE-HEAT TEMP (F°) AUSTENITIZING TEMP (F°) QUENCH MEDIUM TEMPURING TEMP (F°)
M-2 1550/1600 1500/1550 2175/2225 Salt/Oil/Air 1025/1050
M-4 1550/1600 1500/1550 2185/2225 Salt/Oil/Air 1025/1050
M-42 1575/1650 1500/1550 2125/2175 Salt/Oil/Air 1025/1050
PM M-4 1550/1600 1550/1600 1900/2175 Salt/Oil/Air 1000/1100
PM M-48 1550/1600 1550/1600 2050/2175 Salt/Oil/Air 1000/1100
PM T-15 1550/1600 1550/1600 2200/2250 Salt/Oil/Air 1000/1100
PRIMARY GRADES
TMK-320 First-choice grade, offering outstanding performance in a broad range of materials and applications. Especially well-suited for drilling and milling grey cast iron, stainless steels and heat-resistant alloys. TMK-320 is a 10% cobalt micrograin tungsten carbide grade.  
ANSI Classification ISO Classification WC % Co % TaC % Hardness (HRA Density (g/cm3) TRS, min (psi)
C-2/10 K20 90 10 92 14 500,000
TMK-3028 High hardness and wear resistance characteristics, suitable for machining higher hard- ness materials. Can be used to offer extended tool life with proper application. Used extensively for micro drills, circuit board drills and abrasive applications. TMK-3028 is an 8% cobalt ultrafine grain tungsten carbide grade.  
ANSI Classification ISO Classification WC % Co % TaC % Hardness (HRA Density (g/cm3) TRS, min (psi)
C-4/9 K05 92 8 93.5 14.6 610,000
TMK-326 Superior wear resistance in composite materials and abrasive applications. Often used for drilling and reaming with high cutting speeds. Well-suited for the light cuts used with high speed machining techniques in hardened steels and heat-resistant alloys. TMK-326 is a 6% cobalt micrograin tungsten carbide grade.  
ANSI Classification ISO Classification WC % Co % TaC % Hardness (HRA Density (g/cm3) TRS, min (psi)
C-3/9 K10 94 6 93.2 14.85 410,000
TMK-3012 Offers an excellent combination of high hardness, high strength and wear resistance. Suitable for titanium and heat-resistant alloys and hardened steels. Often used for larger diameter milling applications. TMK-3012 is a 12% cobalt ultrafine grain tungsten carbide grade.  
ANSI Classification ISO Classification WC % Co % TaC % Hardness (HRA Density (g/cm3) TRS, min (psi)
C-3 K20 86.8 12 1.2 92.7 14.1 650,000
SPECIALTY GRADES
GRADE ANSI CLASSIFICATION ISO CLASSIFICATION WC % Co % TiC % TaC % HARDNESS (HRA) DENSITY(g/cm3) TRS, MIN (psi) CHARACTERISTICS
TMK-3 C-3 K20 96 3 1 93 15.2 250,000 Medium grain size. Excellent wear and corrosion resistance.
TMK-7 C-3/9 K10 95.6 4.4 92.7 15.1 300,000 Medium grain size. Used for light finishing applications. Good wear resistance.
TMK-10 C-11/12 K40 87 13 88.5 14.2 450,000 Coarse grain size. For wear and medium shock applications.
TMK-11 C-13 K40 85 15 88 14 470,000 Coarse grain size. Light wear and medium shock resistance applications.
TMK-15 C-1/10 K40 94 6 91 14.95 410,000 Coarse grain size. Used for roughing.
TMK15B C-1/10 K40 92 (min) 6 (min) 0.5 (min) 0.5 (min) 90.8 14.6 300,000 Medium/coarse grain size. Used for bur blanks and non-critical wear applications.
TMK-22 C-2/10 K20/30 94 6 92 14.95 400,000 Medium grain size. For general purpose non-ferrous applications
TMK-3026 C-4/9 K05 94 6 94 14.85 400,000 Ultra-fine grain size. Offers very high wear resistance.
TMP-810 C-7/8 P10 84 6 6 3 93 13 275,000 Fine grain size. Excellent wear and corrosion resistance.
TMP-820 C-6 P20/30 72 8 8 12 92 12.55 325,000 Medium grain size. For general purpose turning and finishing of ferrous materials.
TMP-821 C-5/6 P20/30 75.8 8 6.2 10 92 12.9 350,000 Medium grain size. For general purpose machining of ferrous materials.
TMP-825 C-6 P25/30 69 10.5 6 14.5 91.5 12.8 350,000 Fine grain size. Used for milling and turning of ferrous materials
TMP-840 C-5 P30/40 80 10 5 5 90.5 13.1 350,000 Medium/coarse grain size. For general purpose roughing of ferrous materials.
TMP-845 C-5 P40/50 71 13 4 12 90.4 13.1 380,000 Medium grain size. Premium roughing grade for ferrous materials.
NOMINAL GRAIN SIZE RANGES
ULTRA-FINE MICRO FINE MEDIUM COARSE
0.4 to 0.6 µ 0.8 to 1.0 µ > 1 to 2 µ > 2 to 4 µ > 4 µ