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Cast iron ЧН5Г8 (ГН8-5)

S-Ni35 cast iron Cast iron CHN Cast iron CHN5G8 (GN8-5) S-NiSiCr30-5-5 cast iron S-NiSiCr20-5-2 cast iron S-NiMn23-4 cast iron S-NiMn13-7 cast iron S-NiCr35-3 cast iron S-NiCr30-3 cast iron S-NiCr30-1 cast iron S-NiCr20-3 cast iron S-NiCr20-2 cast iron S-Ni22 cast iron L-NiSiCr30-5-5 cast iron L-NiSiCr20-5-3 cast iron L-NiMn13-7 cast iron L-NiCuCr15-6-3 cast iron L-NiCuCr15-6-2 cast iron L-NiCr30-3 cast iron L-NiCr20-3 cast iron L-NiCr20-2 cast iron L-Ni35 cast iron

Designation

Name The value
Designation GOST Cyrillic ЧН5Г8
Designation GOST Latin ChH5G8
Transliteration ChN5G8
The chemical elements ZrН5Mn8
Name The value
Designation GOST Cyrillic ГН8-5
Designation GOST Latin GH8-5
Transliteration GN8-5
The chemical elements MnН8-5

Description

Cast iron ЧН5Г8 used: for the manufacture of casting parts of valves and actuators to it.

Note

Manganese corrosion resistant heat resistant high alloy cast iron.

Standards

Name Code Standards
Castings of cast iron (gray and malleable cast iron) В81 OST 24.207.01-90

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu
OST 24.207.01-90 3-3.5 0.08 ≤0.2 8-9 ≤1 2.5-3 3-6 The rest ≤1.5
Fe is the basis.

Mechanical characteristics

σB, MPa d Brinell hardness number, MPa
Casting as supplied. Annealing at 930-950 °C, exposure for 3-4 hours, cooling with the furnace to 600 °C, air cooling
≥150 ≥1.5 160-230

Description mechanical marks

Name Description
σB Limit short-term strength
d Elongation after rupture

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