Development of plate and seam welding technology for X120 linepipe

被引：0

作者：

Asahi, H ^{[1
]}

Hara, T ^{[1
]}

Sugiyama, M ^{[1
]}

Maruyama, N ^{[1
]}

Terada, Y ^{[1
]}

Tamehiro, H ^{[1
]}

Koyama, K ^{[1
]}

Ohkita, S ^{[1
]}

Morimoto, H ^{[1
]}

Tomioka, K ^{[1
]}

Doi, N ^{[1
]}

Murata, M ^{[1
]}

Ayukawa, N ^{[1
]}

Akasaki, H ^{[1
]}

Fairchild, DP ^{[1
]}

Macia, ML ^{[1
]}

Petersen, CW ^{[1
]}

Koo, JY ^{[1
]}

Bangaru, NV ^{[1
]}

Luton, MJ ^{[1
]}

机构：

[1] Nippon Steel Corp Ltd, Tech Dev Bur, Futtsu, Chiba, Japan

来源：

PROCEEDINGS OF THE THIRTEENTH (2003) INTERNATIONAL OFFSHORE AND POLAR ENGINEERING CONFERENCE, VOL 4 | 2003年

关键词：

high strength linepipe; UOE linepipe; long distance pipeline; boron steel; lower bainite; low carbon steel; cold cracking;

D O I：

暂无

中图分类号：

U6 [水路运输]; P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

To provide a lower cost option for long distance gas transmission, X120 UOE linepipe has been developed. An interrupted direct quench (IDQ) process and boron additions were employed on a low alloy steel to obtain a lower bainite microstructure with extremely small austenite grains. Plates of up to 20 mm thickness are possible with at least 231 J of Charpy energy at -30degreesC. For longitudinal seam welding, a new wire and a new flux were developed. HAZ softening is limited by using a low heat input welding procedure. HAZ cold cracking resistance is excellent due to the low carbon content and Pcm relative to the X120 strength level.

引用

页码：19 / 25

页数：7

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