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Cast iron СЧ20ХН

Designation

Name The value
Designation GOST Cyrillic СЧ20ХН
Designation GOST Latin CCh20XH
Transliteration SCh20HN
The chemical elements -

Description

Cast iron СЧ20ХН used: for the manufacture of castings with the lowest allowable wall thickness of 15 mm corrosion resistant parts operating in slightly alkaline and gaseous media (tsarg and other parts of the columns of the soda production).

Note

Corrosion resistant grey cast iron with Ni and CR.

Standards

Name Code Standards
Cast iron В11 STP М319-95

Chemical composition

Standard C S P Mn Cr Si Ni Fe
STP М319-95 3.2-3.7 ≤0.15 ≤0.2 0.4-0.9 0.4-0.7 1.5-2.3 0.8-1.2 The rest
Fe is the basis.

Mechanical characteristics

σB, MPa Brinell hardness number, MPa
Castings on OST 1 90077-72
≥200 170-241

Description mechanical marks

Name Description
σB Limit short-term strength

Technological properties

Name The value
Microstructure Pearlitic perlito-ferritic. Graphite plate.

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