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Cast iron СЧ20ХН2

Cr21 cast iron ChTB1.8 cast iron ChNM1.2 cast iron ChM1.8 cast iron SCI cast iron Cr35 cast iron Cr30 cast iron Cr25 cast iron Cr24 cast iron Cr20CrNi2 cast iron Cr20KhN cast iron Cr20 cast iron Cr18 cast iron Cr15 cast iron Cr10 cast iron Cast iron SCh03Ts01B NKHT pig iron (NKHT)

Designation

Name The value
Designation GOST Cyrillic СЧ20ХН2
Designation GOST Latin CCh20XH2
Transliteration SCh20HN2
The chemical elements -

Description

Cast iron СЧ20ХН2 used: for the production of castings with the lowest allowable wall thickness of 15 mm corrosion resistant parts operating in the gas and alkaline environments (soda boilers, pereraspredelitel and other details).

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 1.8-2.5 The rest
Fe is the basis.

Mechanical characteristics

σB, MPa Brinell hardness number, MPa
Castings in cast or heat treated condition for STP М319-95
≥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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