AISI M7 High Speed Tool Steel China suppliers, wholesale, distributors and stockholder. Otai Special Steel is manufacturers and have large quantity Stock in Warehouse.  We supply in hss steel Round bar, gauge plate steel, pipe / Tube,rod, square, hexagonal, blanks, plate, sheet, precision ground flat bar, precision ground bar stock and hollow bar. Provide black surface and black surface alloy steel material.
AISI M7 is a American high speed alloy steel material grade.it is shock resisting steel. it belong to ASTM A600-1999 standard. UNS Metal Steel Grade T11307, It is a High Speed steel, ASTM M7 is a molybdenum intermediate type high speed steel, after quenching, surface hardness is 65HRC min. Used for high speed cutting tool, machine tool automation, for cutting high strength material.. Our Tool Steel material 100 % ultrasonic tested with good price. Small size steel products make by hot rolled, large size steel products make by forging.

AISI SAE M7 Steel material properties datenblatt as below:

Chemical composition data of Metal UNS T11307 M7 tool steel-ASTM A600-1999

C Si Mn P S Cr Mo V W Co
0.97～1.05 0.20～0.55 0.15～0.40 0.030 max 0.030 max  3.50～4.00  8.20～9.20 1.75～2.25 1.40~2.10 –

Material equivalent of UNS T11307 | AISI M7 steel

USA Germany China Japan France England Italy ISO Czechia Austria Sweden Spain
AISI/SAE/UNS/ASTM DIN,WNr GB JIS AFNOR BS UNI ISO CSN ONORM SS UNE
M7 /UNS T11307/A600

Physical properties of HSS UNS T11307 | M7 Tool Steel

  • Density: 8.9kg/M7
  • Thermal conductivity:
  • Forging ratio: 5:1 Minimum
  • Microstructure:
  • Magnetic:

Mechanical properties of Alloy Steel UNS T11307 | M7 High Speed Tool Steel

Hardness： Annealing: 255 HB max, Q+T: 65HRC Min, different hardness according different Tempering temperature.

  • Yield strength:

Heat treatment of AISI M7 tool steel

  • Annealing: Annealing temperature/℃: 750~790; After the annealing, degree of hardness ≤HBS: 277. After Cold Drawn 269 HBS Max
  • Quenching: Hardening temperature/℃: 1204, Quenching in Salt bath furnace
  • Tempering: Commonly used drawing temperature/℃:552; After tempering hardness HRC : 65HRC Min
  • Normalizing：at Normalizing temperature, then cool in furnace

Forged steel properties of M7 high tool steel

For forging UNS T11307 | M7 steel, Slowly Pre-heat, at temperature/℃: 900~1100 Forged

Processing of HSS Steel Material UNS T11307 | M7

Otai Special provide the Grinding, milling , polishing, turning, drilling and others machining service as your required tolerances and size.

Packing of AISI M7 steel

By steel Wire Bundling then put in container, or as customer require packing.

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