By visiting this site, you accept the use of cookies. More about our cookie policy.
Will call in 30 seconds. Free.

Cast iron ИЧХ28Н2

Designation

Name The value
Designation GOST Cyrillic ИЧХ28Н2
Designation GOST Latin IChX28H2
Transliteration IChH28N2
The chemical elements ИZrCr28Н2

Description

Cast iron ИЧХ28Н2 used: for the manufacture of castings hydraulics groundwater pumps hydroabrasive mixture with high resistance against abrasive wear.

Note

Iron brand ИЧХ28Н, is melted in a basic and acidic electric arc and induction furnaces.

Standards

Name Code Standards
Castings of cast iron (gray and malleable cast iron) В81 TU 26-06-1484-87, TU 1-812-0072-94

Chemical composition

Standard C S P Mn Cr Si Ni Fe
TU 26-06-1484-87 2.5-3 ≤0.08 ≤1 0.5-1 25-30 0.7-1.4 1.5-3 The rest
Fe is the basis.
According to TU 26-06-1484-87, in order to save nickel, some of it can be replaced by copper (1.0% of nickel is replaced by 2.0% of copper), but not exceeding its maximum solubility. The total mass fraction of nickel and copper in cast iron should not exceed 5.0%. In order to increase the wear resistance, it is possible to apply the modification and microalloying of cast iron with titanium (0.10-0.40%), vanadium (0.10-0.30%), boron (0.01-0.030%). At the same time, the chromium content should be in the range 25.0-27.0%, and of nickel 0.40-0.70%.

Mechanical characteristics

Brinell hardness number, MPa HRC
Casting on the other 26-06-1484-87. Normalization (hardening) at 950-1000 °C (heating rate 50 °C/h, endurance 3 h), air cooling
500-550 52-56
Casting on the other 26-06-1484-87. Vacation at 300-350 °C (heating rate 50 °C/h, endurance 3 h), air cooling
500-550 52-56
Casting on the other 26-06-1484-87. Softening annealing at 730-750 °C (heating rate 50 °C/h, exposure for 4-6 h), cooling with the furnace
370-430 39-46
Casting on the other 26-06-1484-87. Stress relieving: Vacation at 550-580 °C (heating rate 50 °C/h, endurance 3 h), air cooling
420-580 44-58

Description mechanical marks

Name Description
HRC Rockwell hardness (indenter diamond spheroconical)