Steel R12MF5-MP (ДИ70-MP)

Designation

Name	The value
Name	The value
Designation GOST Cyrillic	Р12МФ5-МП
Designation GOST Latin	P12MF5-MP
Transliteration	R12MF5-MP
By chemical elements	-

Name	The value
Name	The value
Designation GOST Cyrillic	ДИ70-МП
Designation GOST Latin	DI70-MP
Transliteration	DI70-MP
By chemical elements	CuИ70-MoP

Description

Steel R12MF5-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 for machining medium alloy steel; taps, broaches, milling cutters for finishing medium alloy, alloyed, corrosion resistant and high strength steels.

Standards

Name	Code	Standards
Name	Code	Standards
Bars and shapes	В22	GOST 1133-71, GOST 2590-2006, GOST 2591-2006
Sheets and strips	В33	GOST 4405-75
Bars and shapes	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
Standard	C	S	P	Mn	Cr	Si	Ni	Fe	Cu	N	V	Mo	W	O	Co
GOST 28393-89	1.45-1.55	≤0.03	≤0.03	≤0.5	3.8-4.3	≤0.6	≤0.4	Rest	≤0.25	0.02-0.06	4-4.6	1-1.5	11.5-12.5	≤0.02	≤0.5

Fe is the basis.

Technological properties

Name	The value
Name	The value
Sanding behaviour	1,00-1,20 relative to steel of grade R6M5.
Wear resistance	tool life of 1.50-2.00 in comparison with steel R12MF5. The limit of Flexural strength 3000-4000 MPa.