TGK SPECIAL STEEL PVT. LTD.

HIGH SPEED STEEL TG M35 (DIN-1.3243) TG M35A (Special for taps) It is one of the W-Mo Co hss grade with good cutting character. The res hardness, hot hardness and wearing resistance are all better than W6M05Cr4V2. M35A - M35A is suitable for fabricating various abrasion resistant and impact resistant tools for powerful cutting high level trimming dies, screw dies, tools of complicated shapes requiring tenacity, reamers milling cutters, punches etc. Mainly used for as roller cutters, drawing tools, end mills, Etc APPLICATIONS This kind steel is suitable for conditions involving thermal stresses and discontinuous cutting. Heavy-duty miling cutters of all kinds, gear cutter, highly stressed twist drills and taps, profile knives, machining of high-strength material, broaches. M35A - Favourable tenacity, high red hardness and excellent abrasion resistance STEEL PROPERTIES JAPAN CHINA TG TGM35 BRAZIL VILLARES VKSE AUSTRIA BOHLER S700 GERMANY DEW 1.3245 SLOVANIA RAVNE BRCMO HITACHI YXM4 NIPPON HM35 SIMILAR STEEL GRADE Indian IS Chemical Analysis Typical Value % (Min - Max) Delivery Condition C S P Si Mn Cr Mo V W Heat Treatment Hardness Co M35 0.88- 0.96 <0.03 <0.03 0.20- 0.45 0.20- 0.40 3.80- 4.50 4.70- 0.52 1.70- 2.00 6.00- 6.70 Annealed <255 HB 4.55- 5.50 M35A 0.91 <0.03 <0.022 4.0 4.8 1.92 6.00 4.85 Annealed <255 HB 0.20- 0.45 0.20- 0.40 CHEMICAL COMPOSITION (%)  Suitable for fabricating various abrasion-resistant and impact-resistant tools for powerful cutting, high-level trimming dies, screw dies, tools of complicated shapes requiring tenacity, reamers, milling cutters, punches, etc.  Mainly used as roller cutters, drawing tools, end mills, etc. NEW DEVELOPMENT M35A APPLICATION UNDER ANNEALED CONDITION : Hardness : HB205-255 DELIVERY STATUS : As Cold drawn / Hot rolled / forged, in annealed condition. REDUCTION RATIO : As 1:4 or 1:5 PRODUCTION PROCESS EAF LF VD ESR BLOOM IN FOLLOWING MACHINE : QUICK FORGING (12.5MN), HAMMER, PRECISION FORGING Precision Forging Hot Rolled & Annealed Peeled (HRAP) Cold Drawn / Sand Blasted (Coil) Cold Drawn / Centreless Ground : 81 - 255mm : 14.5 - 80.0mm : 1.0 -13.5mm : 1.0 -14.4mm Cold Drawn/Centreless Ground Bar Coil 1.0 - 13.5mm Forged & Turned bar 81.0 - 255.0mm Hot Rolled Peeled & Polish Bar 14.5 - 80.0mm 1.0 - 14.4mm SIZE: ROUND Thickness 5mm - 150mm Width 5mm - 810mm SIZE: FLATS 4mm to 100mm SIZE: SQUARES Thickness 0.5mm to 12mm Width 810mm Length 2500mm SIZE: SHEETS O O ANNEALING : Annealing temperature: 860-880 C, keep this temperature by 2-4 hours, then cooling to 600 C in the speed of less than O O 30 C/h if after cold drawn precess, suggest and stress relieving annealing process. Under the temperature of 600-700 C, keep this temperature by 2 houres. Quenching & Tempering (salt bath). QUENCHING : Pre-heating in two steps : O O Heating temperature under : 400-500 C and 850-900 C O Austenitizing temperature : 1180-1220 C O Heating coefficient 10-15sec/mm, quenching under 580-620 C, then cooling to room temperature O TEMPERING : Tempering temperature under : 540-560 C, tempering 3 times, each time 1 hour, then cooling to room temperature. HEAT TREATMENT 9