FIELD: metallurgy.
SUBSTANCE: invention relates to metallurgy, particularly, to grey structural cast irons for cast structural antifriction articles with improved mechanical and operational properties. Grey bearing cast iron contains, wt%: carbon 3.5-3.8; silicon 1.8-2.4; manganese 0.8-1.1;phosphorus 0.1-0.2; sulphur 0.02-0.12; chrome 0.04-0.16; nickel 0.15-0.35; copper 0.14-0.28; titanium 0.03-0.08; cobalt 0.12-0.65; barium 0.05-0.08 and iron- balance.
EFFECT: technical result is high crack resistance, mechanical and anti-friction properties of cast iron in cast articles, in particular tensile strength of cast iron at bending is 462-485 MPa.
1 cl, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| GREY BEARING CAST IRON | 2009 |
|
RU2409689C1 |
| HIGH-STRENGTH ANTIFRICTION CAST IRON | 2015 |
|
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| HIGH-STRENGTH ANTIFRICTION IRON | 2014 |
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| HIGH-STRENGTH CAST IRON FOR HEAT-TREATED CAST CASE PARTS | 2016 |
|
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| HIGH-STRENGTH ALLOYED ANTIFRICTION CAST IRON | 2019 |
|
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| GRAY CAST IRON FOR METALLIC CASTING EQUIPMENT | 2011 |
|
RU2449041C1 |
| HIGH-STRENGTH ALLOYED ANTIFRICTION CAST IRON | 2016 |
|
RU2611624C1 |
| HIGH-DUTY BEARING CAST IRON | 2007 |
|
RU2352675C1 |
| NONMAGNETIC IRON | 2019 |
|
RU2718849C1 |
| HIGH-STRENGTH ANTIFRICTIONAL CAST IRON | 2007 |
|
RU2337996C1 |
