Lubricant surface-treated steel pipe for hydroforming use

Details Lubricant surface-treated steel pipe for hydroforming use Lubricant surface-treated steel pipe for hydroforming use

1997-11-05

2000-01-04

Hook, James F.

Pipes and tubular conduits

Distinct layers

Coated

138145, 138143, F16L 9147

Patent

active

060099135

ABSTRACT:
A lubricant surface-treated steel pipe for hydroforming use in which at least its outer surface is coated with a lubricating organic resin to a thickness of 0.5 .mu.m to 100 .mu.m. The surface-treated steel pipe provides excellent prevention of galling and excellent lubrication in hydroforming. Also, hydroforming can be started immediately after the surface-treated steel pipe is cut into short pieces.

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Patent Abstracts of Japan, vol. 014, No. 052 (M-0928), Jan. 30, 1990; and JP 01 280545 A (Nippon Steel Corp), Nov. 10, 1989.

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