PM STEEL GRADES: PM 23, PM4, PM 30, PM 39, PM52, PM 60 ROUND Dia: ï¶ Medium Dia: 25 mm to 160 mm ï¶ Large Dia: 165mm to 300 mm FLATS: (W) 10mm â 250mm to (H) 20mm â 100mm x Length (meters) PM 23 âis a chromium- molybdenum-tungsten alloyed vanadium steel which is a economical high powder grade metallurgical cold work steel, Suitable for blanking & forming of thinner work materials where a abrasive type of wear is encountered PM4 - is a high Vanadium-chromium- molybdenum-tungsten alloyed steel which is a high powder grade metallurgical cold work steel, Suitable where adhesive wear & chipping are the dominant problems occur such as SS, Mild steel, copper, aluminum or thicker work material PM 30 - is a very high performance Powder metallurgical material having a optimal high cobalt - vanadium-chromium- molybdenum-tungsten alloyed steel, Suitable for machining of nickel-base and titanium alloys, for heavy and interrupted cuts, such as gear hobs, shapers, milling cutters, twist drills, taps and broaching tools