General Discussion on the Toughness of Nine Percent Nickel Steel

2009 ◽  
pp. 421-421-4 ◽  
Author(s):  
A Omsén
Keyword(s):  
Nickel Steel ◽  
Percent Nickel

scholarly journals Experimental Study on Bead on Plate (BOP) Welding of 6 mm Thick 9% Nickel Steel by Fiber Laser Welding

Materials ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 7699
Author(s):  
Jaewoong Kim ◽  
Changmin Pyo ◽  
Yonghyun Kim ◽  
Sungwook Kang ◽  
Taegon Yeo ◽  
...  
Keyword(s):  
Experimental Study ◽  
Fiber Laser ◽  
Filler Metal ◽  
Nickel Steel ◽  
Optimal Conditions ◽  
Fiber Laser Welding ◽  
Butt Welding ◽  
Percent Nickel ◽  
Lng Fuel ◽  
Welding Position

Nine percent nickel steel has excellent properties in a cryogenic environment, so it has recently been used as a tank material for most LNG fuel-powered ships. However, 9% nickel steel causes arc deflection due to its tendency of magnetization during manual FCAW welding and the currently used filler metal is 10–25 times more expensive as a base metal compared to other materials, depending on manufacturers. Furthermore, the properties of its filler metal cause limitation in the welding position. To overcome these disadvantages, in this study, the tendency of penetration shape was analyzed through a fiber laser Bead on Plate (BOP) welding for 9% nickel steel with a thickness of 6 mm and a range of welding conditions for 1-pass laser butt welding of 6 mm thick 9% nickel steel with I-Groove were derived. Through this study, basic data capable of deriving optimal conditions for laser butt welding of 9% nickel steel with a thickness of 6 mm were obtained.

A New Alloy Steel for Marine Cryogenic Applications

1972 ◽  
Vol 9 (03) ◽  
pp. 297-301
Author(s):  
G. E. Kampschaefer ◽  
F. E. Havens ◽  
D. A. Sarno
Keyword(s):  
Heat Treatment ◽  
Alloy Steel ◽  
High Strength ◽  
Notch Toughness ◽  
Nickel Steel ◽  
Percent Nickel ◽  
Joint Properties ◽  
Filler Metals

The authors describe a new five percent nickel steel which is currently being considered for marine cryogenic applications involving the transport of liquefied ethylene and methane. The alloy combined with a unique heat treatment develops both high strength and good notch toughness properties at temperatures below —150 F. Results of weld tests are presented which show that filler metals and processes used for nine percent nickel steel produce adequate joint properties with this new economical alloy.

Fatigue and Fracture Toughness Properties of 9 Percent Nickel Steel at LNG Temperatures

1973 ◽  
Vol 95 (4) ◽  
pp. 1069-1075 ◽  
Author(s):  
D. A. Sarno ◽  
D. E. McCabe ◽  
T. G. Heberling
Keyword(s):  
Fracture Toughness ◽  
Arc Welding ◽  
Base Plate ◽  
Nickel Steel ◽  
Rotating Beam ◽  
Shielded Metal Arc Welding ◽  
Percent Nickel ◽  
Metal Arc Welding ◽  
Fatigue And Fracture ◽  
Welding Processes

9 percent nickel steel has been evaluated for use in a semimembrane LNG containment design. Fatigue and fracture toughness properties of 1/4 in. thick base plate and weldments have been determined at cryogenic temperatures. Results of rotating beam fatigue, stress intensity (Kc) and fatigue crack growth rate (da/dN versus ΔK) studies are presented. Data predict that 9 percent nickel steel, fabricated with the gas metal arc and shielded metal arc welding processes, may be successfully applied as the primary tank material for this LNG design.

LNG Marine Carrier Construction

1972 ◽  
Vol 9 (03) ◽  
pp. 281-291
Author(s):  
James L. Howard
Keyword(s):  
Design Analysis ◽  
Nickel Steel ◽  
Percent Nickel ◽  
Containment System ◽  
Analytical Work ◽  
Materials Research

The author describes the several concepts around which the existing marine LNG containment designs are formulated. The Kvaerner-Moss spherical containment system without secondary barrier is discussed in some detail. The design analysis of that system is presented in a step-by-step fashion as actually performed, along with descriptions of tank materials research and structural experiments which supplement the analytical work. The fabrication sequence of the spheres is discussed, and the welding procedures used for both aluminum and 9 percent nickel steel are included.

Studies on Nine Percent Nickel Steel for Liquefied Natural Gas Carriers

2009 ◽  
pp. 205-205-33 ◽  
Author(s):  
T Sakai ◽  
H Takashima ◽  
K Tanaka ◽  
H Matsumae ◽  
H Yajima
Keyword(s):  
Natural Gas ◽  
Liquefied Natural Gas ◽  
Nickel Steel ◽  
Percent Nickel

Building and Operating Experience of Spherical-Tank LNG Carriers

1977 ◽  
Vol 14 (02) ◽  
pp. 158-174
Author(s):  
James L. Howard ◽  
Rolf S. Kvamsdal ◽  
Kjeld Naesheim
Keyword(s):  
Nondestructive Testing ◽  
Operating Experience ◽  
Temperature Measurements ◽  
Nickel Steel ◽  
Critical Areas ◽  
Percent Nickel ◽  
Analytical Studies ◽  
Spherical Tank

A summary of the analytical and experimental bases of the spherical-tank LNG carriers of the Kvaerner-Moss design is given. Primary attention is paid to a complete description of the experience from building spherical tanks in both 9 percent nickel steel and aluminum, including such critical areas as welding, nondestructive testing, maintenance of tolerances, and repairs of defects. The results of stress and temperature measurements made on the cargo tanks under test are compared with earlier predictions from analytical studies. Operating experience with the cargo system is reported.

The Era of Nickel-Steel

1894 ◽  
Vol 37 (951supp) ◽  
pp. 15191-15192
Author(s):  
W. L. Austin
Keyword(s):  
Nickel Steel

Peculiarities of laser welding of Chromium-Nickel steel and Titanium alloy

2019 ◽  
Author(s):  
Ekaterina Senaeva ◽  
◽  
Nataliya Pugacheva ◽  
Aleksei Makarov ◽  
◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Laser Welding ◽  
Nickel Steel

Protection features of chromium-nickel steel in sulfuric acid solutions by triazole derivative

2019 ◽  
pp. 15-21
Author(s):  
Ya.G. Avdeev ◽  
◽  
Yu.B. Makarychev ◽  
D.S. Kuznetsov ◽  
L.P. Kazanskii ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Nickel Steel ◽  
Acid Solutions ◽  
Triazole Derivative ◽  
Sulfuric Acid Solutions
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