THREADED JOINT FOR STEEL PIPE AND PROCESS FOR PRODUCING THE SAME

Title:

THREADED JOINT FOR STEEL PIPE AND PROCESS FOR PRODUCING THE SAME

Document Type and Number:

WIPO Patent Application WO/2005/098300

Kind Code:

A1

Abstract:

A threaded joint for steel pipe that without causing any adverse influence on human health and environment, permits repeated fastening/unfastening of threaded joint and excels in anti-seizing property, corrosion resistance and airtightness. There is provided a threaded joint for steel pipe composed of a pin and a box, having at at least one side a threaded portion or nonthreaded metal contact portion furnished with a solid lubricant coating comprising a binder, copper powder and at least one lubricating powder selected from among graphite, mica, calcium carbonate and kaolin.

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Inventors:

GOTO KUNIO (JP)
IMAI RYUICHI (JP)
OGAWA YASUHIRO (JP)
MINAMI JUNICHI (JP)

Application Number:

PCT/JP2005/006672

Publication Date:

October 20, 2005

Filing Date:

April 05, 2005

Export Citation:

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Assignee:

SUMITOMO METAL IND (JP)
GOTO KUNIO (JP)
IMAI RYUICHI (JP)
OGAWA YASUHIRO (JP)
MINAMI JUNICHI (JP)

International Classes:

F16L15/04; C10M103/00; C10M103/02; C10M103/04; C10M103/06; C10M125/00; C10M145/20; C10M149/18; E21B17/00; E21B17/042; F16L15/00; F16L15/08; C10N10/02; C10N10/04; C10N40/00; C10N50/08; C10N80/00; (IPC1-7): F16L15/04; E21B17/042; C10M103/02; C10M103/04; C10M103/06; C10M145/20; C10M149/18

Foreign References:

JP2003042354A	2003-02-13
JPH08105582A	1996-04-23
JP2002257270A	2002-09-11
JP2002173692A	2002-06-21
JPS6179797A	1986-04-23
JPH0378517B2	1991-12-13
JPH08103724A	1996-04-23
JPH08105582A	1996-04-23
JPH05117870A	1993-05-14
JPH0610154A	1994-01-18
JPH05149485A	1993-06-15
JPH0285593A	1990-03-27
JPH08233163A	1996-09-10
JPH08233164A	1996-09-10

Other References: