FIELD: metallurgy.
SUBSTANCE: invention refers to metallurgy, and namely to nonmagnetic austenitic cast irons with low coefficient of linear expansion. Cast iron contains the following, wt %: carbon 3.1-3.6; silica 2.1-2.5; manganese 8-10; copper 0.8-2.5; chrome 0.07-0.1; aluminium 0.3-0.8; rare-earth metals 0.02-0.06; barium 0.03-0.06; sulphur 0.02-0.06; boron 0.002-0.02; iron is the rest.
EFFECT: obtained cast iron has reduced hardness in cast state, low strength thermal stresses and high cutting performance of cast iron.
2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| NONMAGNETIC IRON | 2019 |
|
RU2718849C1 |
| HIGH-STRENGTH ALLOYED ANTIFRICTION CAST IRON | 2019 |
|
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| HIGH-STRENGTH ALLOYED ANTIFRICTION CAST IRON | 2016 |
|
RU2611624C1 |
| HIGH-STRENGTH ALLOYED ANTIFRICTION CAST IRON | 2019 |
|
RU2720271C1 |
| CAST IRON | 0 |
|
SU1740479A1 |
| HIGH-STRENGTH CAST IRON FOR HEAT-TREATED CAST CASE PARTS | 2016 |
|
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| HIGH-STRENGTH ANTIFRICTION CAST IRON | 2015 |
|
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| GREY BEARING CAST IRON | 2009 |
|
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| FRICTION GRAY CAST IRON | 2013 |
|
RU2552820C2 |
| GRAY CAST IRON FOR METALLIC CASTING EQUIPMENT | 2011 |
|
RU2449041C1 |
