Exxonmobil Research and Engineering Company

Posco

Posco Co., Ltd

Poseo

Exxonmobil Technology and Engineering Company

Jongsub Lee

Douglas Paul Fairchild

Hyunwoo Jin

Andrew J Wasson

Bongkeun Lee

Sangchul Lee

Ning Ma

IlWook Han

Xin Yue

Adnan Ozekcin

Timothy D Anderson

IIWook Han

Iiwook Han

Welding compositions for high manganese steel base metals, the composition comprising: carbon in a range of about 0.4 wt % to about 0.8 wt %; manganese in a range of about 18 wt % to about 24 wt %; chromium in an amount of about 6 wt %; molybdenum in an amount of about <4 wt %; nickel in an amount of about <5 wt %; silicon in an amount of about 0.4 wt % to about 1.0 wt %; sulfur in an amount of about <200 ppm; phosphorus in an amount of about <200 ppm; and the balance comprising iron.

Field girth welding technology for high manganese steel slurry pipelines

Methods of welding high manganese steel, the methods comprising: supplying at least one piece of high manganese steel; supplying the metal cored wire comprising a steel sheath with a core comprising powders of certain metal and carbon percentages and at least one of: i: sulfur in an amount less than 0.3 wt. %; or ii. phosphorous in an amount less than 0.03 wt. %; or a combination thereof; and the balance with iron; submerging the at least one piece of high manganese steel in a slag and arc stabilizer; and applying a current to the metal cored wire to produce a liquid alloy steel composition on the at least one piece of high manganese steel.

Methods of welding high manganese steel with step-out weld zone erosion-corrosion resistance

A metal cored wire for submerged arc welding, the wire comprising a steel sheath with a core comprising powders of: carbon in a range of about 0.3 wt. % to about 1.2 wt. %; silicon in a range of about 0.1 wt. % to about 3.0 wt. %; manganese in a range of about 9.0 wt. % to about 30 wt. %; chromium in an amount less than about 8 wt. %; nickel in an amount less than about 6 wt. %; molybdenum in an amount less than about 6 wt. %; tungsten in an amount less than about 5 wt. %; copper in an amount less than about 4 wt. %; niobium in an amount less than about 2 wt. %; vanadium in an amount less than about 2 wt. %; titanium in an amount less than about 2 wt. %; nitrogen in an amount less than about 0.4 wt. %; boron in an amount less than about 1 wt. %; at least one of: (i) sulfur in an amount less than about 0.3 wt. %; (ii) phosphorous in an amount less than about 0.03 wt. %; or a combination thereof; and the balance with iron.

High manganese steel pipe with step-out weld zone erosion-corrosion resistance and method of making the same

The present disclosure relates to a welding composition for joining high manganese steel base metals to low carbon steel base metals, as well as systems and methods for the same. The composition includes: carbon in a range of about 0.1 wt % to about 0.4 wt %; manganese in a range of about 15 wt % to about 25 wt %; chromium in a range of about 2.0 wt % to about 8.0 wt %; molybdenum in an amount of &#x2264; about 2.0 wt %; nickel in an amount of &#x2264; about 10 wt %; silicon in an amount of &#x2264; about 0.7 wt %; sulfur in an amount of &#x2264; about 100 ppm; phosphorus in an amount of &#x2264; about 200 ppm; and a balance comprising iron. In an embodiment, the composition has an austenitic microstructure.

Field dissimilar metal welding technology for enhanced wear resistant high manganese steel

The present disclosure relates to a welding composition for joining high manganese steel base metals and methods of applying the same. The composition includes: carbon in a range of about 0.4 wt % to about 0.8 wt %; manganese in a range of about 18 wt % to about 24 wt %; chromium in an amount of &#x2264; about 6 wt %; molybdenum in an amount of &#x2264; about 4 wt %; nickel in an amount of &#x2264; about 5 wt %; silicon in an amount of about 0.4 wt % to about 1.0 wt %; sulfur in an amount of &#x2264; about 200 ppm; phosphorus in an amount of &#x2264; about 200 ppm; and a balance including iron. In an embodiment, the composition has an austenitic phase.

Improved steel welds, article for making the same, and methods of making the same are provided. The present disclosure provides advantageous erosion, corrosion and/or cracking resistant weld metal. More particularly, the present disclosure provides high manganese (Mn) weld metal compositions having enhanced erosion, corrosion and/or cracking resistance, articles for the production of the high manganese weld metal compositions having enhanced erosion, corrosion, and/or cracking resistance, and methods for fabricating high manganese weld metal compositions having enhanced erosion, corrosion and/or cracking resistance.

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Seoul, South Korea

Jongsub Lee