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Steel R12M3K5F2-MP (ДИ103-MP)

Designation

Name The value
Designation GOST Cyrillic Р12М3К5Ф2-МП
Designation GOST Latin P12M3K5F2-MP
Transliteration R12M3K5F2-MP
The chemical elements -
Name The value
Designation GOST Cyrillic ДИ103-МП
Designation GOST Latin DI103-MP
Transliteration DI103-MP
The chemical elements CuИ103-MoP

Description

Steel R12M3K5F2-MP used: for the production of hot rolled and forged strips, hot rolled, forged and calibrated rods, rods with special surface finish produced by hot gas-static pressing (GGP) pulverized powder with subsequent deformation of the blanks; shaped cutters, drills, reamers, core drills, taps, broaches, milling cutters (worm, disk, end, special), dalbekov, shaver for processing high-strength steels, heat resisting steels and alloys.

Standards

Name Code Standards
Sectional and shaped rolling В22 GOST 1133-71, GOST 2590-2006, GOST 2591-2006
Sheets and stripes В33 GOST 4405-75
Sectional and shaped rolling В32 GOST 7417-75, GOST 28393-89

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu N V Mo W O Co
GOST 28393-89 1.05-1.15 ≤0.03 ≤0.03 0.5 3.8-4.3 ≤0.6 ≤0.4 The rest ≤0.25 0.02-0.06 1.8-2.3 2.5-3 11.5-12.5 ≤0.02 5-5.5
Fe is the basis.

Technological properties

Name The value
Grindability Of 1.00 to 1.30 relative to steel of grade R6M5.
Resistance to wear tool life of 1.50-2.00 in comparison with steel R12M3K5F2. Tensile strength in bending 2600-3500 MPa.

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