Общий каталог Yamawa 2021 - страница 686

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14. Materials used for Cutting Tools Intro Chemical composition of the materials specified in JIS SP Chemical composition Classification Symbol C Si Mn P S Cr Mo W V Co SKH 2 0.73-0.83 ≤0.45 ≤0.4 ≤0.030 ≤0.030 3.80-4.50 - 17.20-18.70 1.00-1.20 - W Type HSS SKH 3 0.73-0.83 ≤0.45 ≤0.4 ≤0.030 ≤0.030 3.80-4.50 - 17.00-19.00 0.80-1.20 4.50- 5.50 SL SKH 4 0.73-0.83 ≤0.45 ≤o.4 ≤0.030 ≤0.030 3.80-4.50 - 17.00-19.00 1.00-1.50 9.00-11.00 SKH10 1.45-1.60 ≤0.45 ≤0.4 ≤0.030 ≤0.030 3.80-4.50 - 11.50-13.50 4.20-5.20 4.20- 5.20 SKH51 0.80-0.88 ≤0.45 ≤0.4 ≤0.030 ≤0.030 3.80-4.50 4.70- 5.20 5.90- 6.70 1.70-2.10 - SKH52 1.00-1.10 ≤0.45 ≤0.4 ≤0.030 ≤0.030 3.80-4.50 5.50- 6.50 5.90- 6.70 2.30-2.80 - PO SKH53 1.15-1.25 ≤0.45 ≤o.4 ≤0.030 ≤0.030 3.80-4.50 4.70- 5.20 5.90- 6.70 2.70-3.20 - SKH54 1.25-1.40 ≤0.45 ≤0.4 ≤0.030 ≤0.030 3.80-4.50 4.20- 5.00 5.20- 6.00 3.70-4.20 - Mo Type HSS SKH55 0.87-0.95 ≤0.45 ≤0.4 ≤0.030 ≤0.030 3.80-4.50 4.70- 5.20 5.90- 6.70 1.70-2.10 4.50- 5.00 SKH56 0.85-0.95 ≤0.45 ≤0.4 ≤0.030 ≤0.030 3.80-4.50 4.70- 5.20 5.90- 6.70 1.70-2.10 7.00- 9.00 SKH57 1.20-1.35 ≤0.45 ≤0.4 ≤0.030 ≤0.030 3.80-4.50 3.20- 3.90 9.00-10.00 3.00-3.50 9.50-10.50 ST SKH58 0.95-1.05 ≤0.7 ≤0.4 ≤0.030 ≤0.030 3.50-4.50 8.20- 9.20 1.50- 2.10 1.70-2.20 - SKH59 1.05-1.15 ≤0.7 ≤0.4 ≤0.030 ≤0.030 3.50-4.50 9.00-10.00 1.20- 1.90 0.90-1.30 7.50- 8.50 ROLL Classification Symbol Usage Cross chart CARBIDE AISI VDEH ISO SKH 2 Tools for general cutting and other kinds of tools T1 S18-0-1 S1 (HS18-0-1) SKH 3 Tools for high speed heavy cutting and other kinds of tools T4 S18-1-2-5 S7 (HS18-1-1-5) W Type HSS SKH 4 Tools for cutting hard -to-machine materials and other kinds of tools T5 S18-1-2-10 S6 (HS18-0-1-10) LONG SKH10 Tools for cutting ultra hard-to-machine materials and other kinds of tools T 15 - S9 (HS12-1-5-5) General cutting tools from which toughness is particularly SKH51 M2 S6-5-2 S4 (HS6-5-2) required, and other kinds of tools SKH52 Tools for cutting high hardness material from which M 3-1 - - HAND SKH53 comparatively high toughness is required and other kinds of tools M 3-2 S6-5-3 S5 (HS6-5-3) TAPS SKH54 Tools for cutting ultra hard-to-machine materials and other kinds of tools M4 - - SKH55 High speed cutting tools from which comparatively high M 35 S6-5-2-5 S8 (HS6-5-2-5) Mo Type HSS SKH56 toughness is required and other kinds of toolsSKH57Tools for cutting ultra hard-to-machine materials and other kinds of toolsM 36---S10-4-3-10 S10 (HS10-4-3-10)EG (STI) General cutting tools from which toughness is particularly SKH58 M7 S2-9-2 S2 (HS2-9-2) required, and other kinds of tools High speed heavy cutting tools from which comparatively SPECIAL SKH59 high toughness is required, and other kinds of tools M 42 S2-10-1-8 S11 (HS2-9-1-8) THREADS,GAUGES The standard of HSS material is specified in JIS. But there are many HSS materials which standard is not specified in JIS. Recently even the kind THREAD of HSS-P is getting wider and various. Besides, SKH10, SKH53, SKH57 and their equivalents, such Hi vanadium/hi cobalt material as contains MILLS 4-12% vanadium and 8-11% cobalt is now being manufactured. Material engineering will be developed rapidly in the future. Under such situation, there can be many cases where JIS symbols are not used, and the use of larger classification and their symbols is getting popular. DIES CENTER DRILLS Technical info 687