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Steel 76C (М76Ц)

Designation

Name The value
Designation GOST Cyrillic 76Ц
Designation GOST Latin 76Ts
Transliteration 76Ts
The chemical elements 76Zn
Name The value
Designation GOST Cyrillic М76Ц
Designation GOST Latin M76Ts
Transliteration M76Ts
The chemical elements Mo76Zn

Description

76C steel is used: for the manufacture of railway rails R65 and R75 types; types of rails RP50, RP65 and РП75 broad gauge for the tracks of industrial railway transport for railway tracks and turnouts of industrial enterprises.

Note

М76Ц — steel open-hearth rail with Zirconia.

Standards

Name Code Standards
Rails. Lining. Lining. Crutches В42 GOST 8161-75, GOST 16210-77, GOST 18267-82, GOST 24182-80, GOST Р 51045-97

Chemical composition

Standard C S P Mn Si Fe Zr
GOST 24182-80 0.71-0.82 ≤0.045 ≤0.035 0.75-1.05 0.18-0.4 The rest 0.001-0.05
GOST Р 51045-97 0.71-0.84 ≤0.045 ≤0.035 0.75-1.25 0.18-0.55 The rest 0.001-0.01
Fe is the basis.
According to GOST 24182-80, the zirconium content in the range from 0.001% to 0.01% in steel is determined from the calculation of its input of not less than 80 grams per ton of liquid steel.
In rails made of Kerch ores, the content of phosphorus is not more than 0.040%, sulfur is not more than 0.050%, arsenic is not more than 0.15%.
The rails of group I must be made of calm open-hearth steel, deoxidized in the ladle by complex deoxidizers without the use of aluminum or other deoxidizers, which form harmful non-metallic inclusions in steel.

Mechanical characteristics

Section, mm sT|s0,2, MPa σB, MPa d5, % y, % kJ/m2, кДж/м2 Brinell hardness number, MPa
Mechanical properties of steel for rails type R65 and R75 GOST 24182-80 on delivery
- ≥900 ≥4 - - -
Rails type R65 and R75 GOST 18267-82. Bulk quenching in oil + Furnace vacation
≥794 ≥1176 ≥6 ≥25 ≥245 341-388
Types of rails RP50, RP65 and РП75 according to GOST R 51045-97 on delivery
- ≥780 ≥3 - - -
- ≥1080 ≥5 - ≥147 311-420

Description mechanical marks

Name Description
Section Section
sT|s0,2 Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σB Limit short-term strength
d5 Elongation after rupture
y The relative narrowing
kJ/m2 Toughness

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