Steel M75

Designation

Name	The value
Designation GOST Cyrillic	М75
Designation GOST Latin	M75
Transliteration	M75
By chemical elements	Mo75

Description

M75 steel is used: for the production of grooved tram rails of types Тв60 Тв65 and high quality.

Standards

Name	Code	Standards
Rails. Lining. Lining. Crutches	В42	TU 14-2-751-87

Chemical composition

Standard	C	S	P	Mn	Si	Fe
TU 14-2-751-87	0.67-0.8	≤0.04	≤0.04	0.7-1	0.13-0.28	Rest

Fe is the basis.
According to TU 14-2-751-87 the chemical composition for steel M75 is given. In the mark designation the letter "M" indicates the method of steel smelting (open-hearth), and the figures - the average carbon content in hundredths of a percent.

Mechanical properties

Section, mm	σ_U, MPa
Tram rails grooved high-quality on the other 14-2-751-87
	≥820

Description mechanical marks

Name	Description
σ_U	Limit short-term strength

Technological properties

Name	The value
Macrostructure and pollution	The macrostructure of the rails is guaranteed by the manufacturer. Not permitted residue shrinkage and delamination.