US 12,169,042 B2
Metal pipe, in particular pipe for conveying oil and gas, comprising a metal coating in a transition region
Jochen Vochsen, Erkelenz (DE); and Michael Stark, Markdorf (DE)
Assigned to SMS GROUP GMBH, Mönchengladbach (DE)
Appl. No. 17/607,250
Filed by SMS GROUP GMBH, Dusseldorf (DE)
PCT Filed Apr. 29, 2020, PCT No. PCT/EP2020/061935
§ 371(c)(1), (2) Date Oct. 28, 2021,
PCT Pub. No. WO2020/221819, PCT Pub. Date Nov. 5, 2020.
Claims priority of application No. 102019206093.5 (DE), filed on Apr. 29, 2019.
Prior Publication US 2022/0243859 A1, Aug. 4, 2022
Int. Cl. F16L 58/18 (2006.01); B23K 9/028 (2006.01); B23K 101/10 (2006.01); F16L 13/02 (2006.01); F16L 58/08 (2006.01); F16L 58/10 (2006.01)
CPC F16L 58/181 (2013.01) [F16L 13/0263 (2013.01); F16L 58/1027 (2013.01); B23K 9/0282 (2013.01); B23K 2101/10 (2018.08); F16L 13/0272 (2013.01); F16L 58/08 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A metal pipe for conveying oil and gas, the metal pipe comprising:
a pipe body with an inner surface and an outer surface; and
a pipe joint having a transition region located at an end of the pipe body, and the inner surface of the pipe body having at least a partial base coating disposed at the transition region,
wherein the transition region is coated on the inner surface of the pipe body with a weldable metal coating of a material with anti-corrosion and/or anti-abrasion properties,
wherein the at least partial base coating on the inner surface of the pipe body partially covers the metal coating of the transition region, and
wherein the at least partial base coating is a sprayed-on metal base coating.