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High-speed tool steel

High-speed tool steel

general characteristics

Fast-cutting steel is produced in accordance with the norms of GOST 19265−73. Used in the production of metal cutting tools, which is designed for high-speed cutting. Doped with tungsten, molybdenum, vanadium, cobalt, which provides high heat resistance, redness, hardness.

Marking

The number indicated after the letter «P» means the average content of tungsten (from the total mass in percent, the letter B is skipped). Then the letters M, K, and F indicate the percentage of molybdenum, cobalt, vanadium.

Chemical composition of the material in percent
Make Mn Si C Ni Cr P S Mo Co V W
P18 Up to 0.5 Up to 0.5 0.73 — 0.83 Up to 0.4 3.8 — 4.4 To 0.03 To 0.03 Up to 1 Up to 0.5 1−1.4 17 — 18.5
P6M5 Up to 0.5 Up to 0.5 0.82 — 0.9 Up to 0.4 3.8 — 4.4 To 0.03 To 0.025 4.8 — 5.3 Up to 0.5 1.7 — 2.1 5.5 — 6.5
P9K5 Up to 0.5 Up to 0.5 0.9 — 1 Up to 0.4 3.8 — 4.4 To 0.03 To 0.03 Up to 1 5.0−6.0 2.3 — 2.7 9.0−10.0
P6M5K5 Up to 0.5 Up to 0.5 0.84 — 0.92 Up to 0.4 3.8 — 4.3 To 0.03 To 0.03 4.8 — 5.3 4.7 — 5.2 1.7 — 2.1 5.7 — 6.7
Hardness after annealing of P18 material HB 10 -1 = 255 MPa
Hardness after annealing of P9K5 material HB 10 -1 = 269 MPa
Hardness after annealing of P6M5 material HB 10 -1 = 255 MPa
Hardness after annealing of P6M5K5 material HB 10−1 = 269 MPa

Buy at a bargain price

LLC «Avek Global» offers the most favorable conditions for the sale of rolled metal. The range of high-speed steels offered by the company can satisfy any customer. The price depends on the volume of purchase and the additional terms of delivery. At wholesale sales there are significant discounts. Managers of the company are always ready to provide advice. A large assortment will not leave you without a choice. Our company guarantees timely delivery. All products are certified. Quality is guaranteed by strict observance of all technological norms of production.