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Cast Iron L-NiCr20-2

Designation

Name The value
Designation GOST Cyrillic L-NiCr20-2
Designation GOST Latin L-NiCr20-2
Transliteration L-NiCr20-2
The chemical elements L-NiCr20-2

Description

Cast iron L-NiCr20−2 is used: for the manufacture of castings pumps, pumping alkali; for vessels, which contain caustic alkali; parts soap and food industries, industries for the production of artificial silk and plastics; suitable in cases where the required materials not containing copper.

Note

Nickel cast iron. Has properties similar to Marche L-NiCuCr15−6-2, but with higher corrosion resistance in alkaline environments. Cast iron has a high coefficient of thermal expansion.

Standards

Name Code Standards
Castings with special properties (cast iron and steel) В83 GOST 7769-82

Chemical composition

Standard C Mn Cr Si Ni Fe Cu
GOST 7769-82 ≤3 0.5-1.5 1-2.5 1-2.8 18-22 The rest ≤0.5
Fe is the basis.

Mechanical characteristics

σB, MPa d4 Brinell hardness number, MPa
Castings on OST 1 90077-72
170-210 2-3 120-215

Description mechanical marks

Name Description
σB Limit short-term strength
d4 Elongation after rupture

Physical characteristics

Temperature Е, ГПа
20 85-105

A description of the physical symbols

Name Description
l Coefficient of thermal conductivity
a The coefficient of linear expansion

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