Steel Р9Ф5 (ЭИ706)

Designation

Name	The value
Designation GOST Cyrillic	Р9Ф5
Designation GOST Latin	P9F5
Transliteration	R9F5
By chemical elements	-

Name	The value
Designation GOST Cyrillic	ЭИ706
Designation GOST Latin	EI706
Transliteration	EhI706
By chemical elements	-

Description

Р9Ф5 steel is used: for the manufacture of wear-resistant parts and tools with simple shapes that do not require large amounts of grinding operations for machining materials with high abrasive properties; finishing tools of simple shape in the processing of alloy steels and alloys.

Standards

Name	Code	Standards
Bars and shapes	В32	TU 14-1-2459-78

Chemical composition

Standard	C	S	P	Mn	Cr	Si	Ni	Fe	V	Mo	W
TU 14-1-2459-78	1.4-1.5	≤0.03	≤0.035	≤0.5	3.8-4.4	≤0.5	≤0.4	Rest	4.3-5.1	≤1	9-10.5

Fe is the basis.
According to TU 14-1-2459-78, the presence of cobalt in steel up to 0.60% is not a sign of acceptance. Deviations in chemical composition, indicated in table 2 of GOST 19265, are allowed in the finished product.

Technological properties

Name	The value
Macrostructure and pollution	Requirements for the quality of the macrostructure of steel on the other 14-1-2459-78, fracture, surfaces, to the ends of the rods, carbide inhomogeneity, the permissible depth bezoperatsionnogo layer should correspond to GOST 19265.
Particularities of production of goods	On the other 14-1-2459-78 steel shall be supplied annealed with hardness along the length of the rod is not more than 269 HB (indentation diameter not less than 3.7 mm). According to customer's requirement steel made with hardness not more than 255 HB (indentation diameter not less than 3.8 mm). The hardness of the steel after quenching and tempering should be at least 64 HRC. The red hardness of steel should provide a hardness not less than HRC 59 after a four-hour tempering at a temperature of 620 °C. the red hardness of steel by the manufacturer can not be determined and guaranteed.