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Cast iron LR3

Designation

Name The value
Designation GOST Cyrillic ЛР3
Designation GOST Latin LP3
Transliteration LR3
The chemical elements BeB3

Description

Cast iron LR3 apply: for further melting in iron shops in the production of iron castings.

Note

Foundry pig iron, refined magnesium.

Standards

Name Code Standards
Cast iron В11 GOST 4832-95

Chemical composition

Standard C S P Mn Cr Si Fe Al V Ti Pb Mg
GOST 4832-95 3.4-4.5 ≤0.01 ≤0.12 ≤1 ≤0.04 2.4-2.8 The rest ≤0.005 ≤0.05 ≤0.05 ≤0.005 ≤0.019
Fe is the basis.
According to GOST 4832-95, cast iron is divided into 3 groups according to the manganese content: I group ≤0.30%, II group 0.30-0.50%, III group 0.50-1.00%; by the content of phosphorus is divided into 2 classes: class A ≤0,080%, class B ≤0,12%; on the content of sulfur is divided into 2 categories: 1 category ≤0.0050%, 2 category ≤0.010%.

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