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Steel 55ХФА (55ХФ)

Designation

Name The value
Designation GOST Cyrillic 55ХФА
Designation GOST Latin 55XFA
Transliteration 55HFA
The chemical elements 55CrV
Name The value
Designation GOST Cyrillic 55ХФ
Designation GOST Latin 55XF
Transliteration 55HF
The chemical elements 55CrV

Description

55ХФА steel is used: for the manufacture of heavy-duty parts with high fatigue strength; springs operating at temperatures to +200 °C; the tool.

Note

Steel spring, chrome vanadium high quality instrumental belongs to the group of presintering steels.

Standards

Name Code Standards
Bulls. Blanks. Slabs В31 TU 14-1-1842-76

Chemical composition

Standard C S P Mn Cr Si Ni Fe V
TU 14-1-1842-76 0.5-0.6 ≤0.025 ≤0.025 0.5-0.8 0.8-1.1 0.17-0.37 ≤0.3 The rest 0.1-0.2
Fe is the basis.
According to TU 14-1-1842-76, the chemical composition is given for 55ХФА steel. The permissible deviations in chemical composition are in accordance with GOST 14959.

Technological properties

Name The value
Macrostructure and contamination The macrostructure of the square billets on the other 14-1-1842-76 in fractures treated or templete should not have shrinkage, porosity, bubbles, delaminations, cracks, inclusions and placenow.
Features of production Billets, on the other 14-1-1842-76 supplied in the annealed condition.

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