SEAMLESS CAST IRON HOT DEFORMED TUBE Russian patent published in 2004 - IPC

Abstract RU 2243046 C1

FIELD: processes for deformation-thermal treatment of iron carbonaceous777 alloys, possibly manufacture of seamless hot deformed tubes.

SUBSTANCE: in cast iron hot deformed seamless tube relation of tube wall thickness to its outer diameter is in range 0.01 -0.35. Tube is made of fire777 resistant cast iron and it contains besides other elements (mass %): carbon, 2.1 -3.8; silicon, 1.0 - 3.5; manganese, 0.05 -0.80.

EFFECT: enhanced quality, increased strength, enlarged manufacturing possibilities of tubes due to using them in welded pipelines and structures.

3 cl, 1 dwg, 1 ex

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RU 2 243 046 C1

Authors

Veter V.V.

Samojlov M.I.

Babanov A.A.

Pripadcheva N.A.

Belkin G.A.

Dates

2004-12-27—Published

2003-11-11—Filed