Steel 70ХЛ

Designation

Name The value
Designation GOST Cyrillic 70ХЛ
Designation GOST Latin 70XL
Transliteration 70HL
By chemical elements 70Cr

Description

70ХЛ steel is used: for the manufacture of shaped castings of wear resistant mining parts and mining equipment.

Note

Steel chromium wear-resistant.
The steel has a high resistance to wear when exposed to high pressures or shock loads.

Standards

Name Code Standards
Steel castings В82 TU 24-1-1520-77
Castings with special properties (iron and steel) В83 TU 4112-78269737-001-2005

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu
TU 4112-78269737-001-2005 0.65-0.75 ≤0.05 ≤0.05 0.55-0.85 0.7-1.2 0.25-0.45 ≤0.8 Rest ≤0.5
Fe is the basis.
According to TU 4112-78269737-001-2005, deviations in the content of carbon and silicon in the range of +0.10% of each are allowed, according to the remaining elements - according to Table 5 of GOST 977. The list of other impurity elements and their mass fraction in the steel are indicated in the drawings castings. If there are no such indications in the drawing, then the control of the chemical composition is carried out only according to the elements specified in TU or GOST 977.