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Nichrome and carbon steel composite board as well as production method thereof

A technology of nickel-chromium alloy and production method, which is applied in the field of manufacturing and transporting corrosion-resistant oil and natural gas steel pipes, can solve the problems that carbon steel cannot meet the corrosion resistance requirements, and achieve the effect of improving the safety of use

Inactive Publication Date: 2015-04-22
SHOUGANG CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The current oil pipeline is generally made of low-carbon steel that does not have strong corrosion resistance, such as steel grade B-X80 in API 5L "American Petroleum Pipeline Technical Specifications", but with the development of corrosive oil and gas and offshore oil and gas in the future , general carbon steel cannot meet its corrosion resistance requirements, if you continue to use ordinary pipeline steel, it will bring greater quality risks

Method used

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  • Nichrome and carbon steel composite board as well as production method thereof
  • Nichrome and carbon steel composite board as well as production method thereof
  • Nichrome and carbon steel composite board as well as production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The steel plate composition of the present invention: the base material X60MS meets the requirements of API5L "American Petroleum Pipeline Technical Specifications", and the weight percentages of the present invention are: C: 0.03-0.07%, Si: 0.01-0.40%, Mn: 1.00-1.40%, P : ≤0.015%, S: ≤0.003%, Alt: 0.01~0.06%, N: ≤0.006%, H: ≤0.0002%, the balance is Fe and unavoidable impurity elements, the metallographic structure is composed of acicular ferrite composition. Nb, V, Ti, Cu, Ni, Cr microalloy strengthening elements can also be added, Nb+V+Ti≤0.15%; Cu: 0.00-0.30%, Ni: 0.00-0.20%, Cr: 0.00-0.30% 1 to 3 species. The rest are Fe and inevitable impurity elements, and the metallographic structure is composed of acicular ferrite. Multilayer Incoloy 825 nickel-chromium alloy composition C≤0.05%, 19.5≤Cr≤23.5%, 38.0≤Ni≤46.0%, Si≤0.50%, Mn≤1.0%, 0.60≤Ni≤1.20%, and also contains Cu, Mo , Fe and other alloying elements to increase corrosion resistance.

[0019] The steel plate ...

Embodiment 2

[0028] The steel plate composition of the present invention: the base material X60MS meets the requirements of API5L "American Petroleum Pipeline Technical Specifications", and the weight percentages of the present invention are: C: 0.03-0.07%, Si: 0.01-0.40%, Mn: 1.00-1.40%, P : ≤0.015%, S: ≤0.003%, Alt: 0.01~0.06%, N: ≤0.006%, H: ≤0.0002%, the balance is Fe and unavoidable impurity elements, the metallographic structure is composed of acicular ferrite composition. Nb, V, Ti, Cu, Ni, Cr microalloy strengthening elements can also be added, Nb+V+Ti≤0.15%; Cu: 0.00-0.30%, Ni: 0.00-0.20%, Cr: 0.00-0.30% 1 to 3 species. The rest are Fe and inevitable impurity elements, and the metallographic structure is composed of acicular ferrite. Multilayer Incoloy 825 nickel-chromium alloy composition C≤0.05%, 19.5≤Cr≤23.5%, 38.0≤Ni≤46.0%, Si≤0.50%, Mn≤1.0%, 0.60≤Ni≤1.20%, and also contains Cu, Mo , Fe and other alloying elements to increase corrosion resistance.

[0029] The steel plate ...

Embodiment 3

[0038] The steel plate composition of the present invention: the base material X60MS meets the requirements of API5L "American Petroleum Pipeline Technical Specifications", and the weight percentages of the present invention are: C: 0.03-0.07%, Si: 0.01-0.40%, Mn: 1.00-1.40%, P : ≤0.015%, S: ≤0.003%, Alt: 0.01~0.06%, N: ≤0.006%, H: ≤0.0002%, the balance is Fe and unavoidable impurity elements, the metallographic structure is composed of acicular ferrite composition. Nb, V, Ti, Cu, Ni, Cr microalloy strengthening elements can also be added, Nb+V+Ti≤0.15%; Cu: 0.00-0.30%, Ni: 0.00-0.20%, Cr: 0.00-0.30% 1 to 3 species. The rest are Fe and inevitable impurity elements, and the metallographic structure is composed of acicular ferrite. Multilayer Incoloy 825 nickel-chromium alloy composition C≤0.05%, 19.5≤Cr≤23.5%, 38.0≤Ni≤46.0%, Si≤0.50%, Mn≤1.0%, 0.60≤Ni≤1.20%, and also contains Cu, Mo , Fe and other alloying elements to increase corrosion resistance.

[0039] The steel plate ...

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Abstract

The invention relates to a nichrome and carbon steel composite board as well as a production method thereof, which belong to the technical field of metal composite board production. According to the invention, the composite board is characterized in that the smelted X60MS and Incoloy 825 nichrome casting blanks enable respective cogging and rolling, the size of a designed intermediate blank can be rolled; then the polish-grinding treatment can be carried out on surface of billets, the billet are symmetrically composited, an upper layer and a lower layer are X60MS material carbon steels, the two intermediate layers are nichrome, nickel foils with different thickness can be selectively added between the carbon steel and nichrome or a soldering flux is not added, and a solder resist is added between the nichrome and the nichrome. then four edges welding for edge sealing can be carried out on the billets, and a mechanical pump is used for vacuum-pumping treatment. The composite board has the advantages that the shearing intensity of a compound interface is more than 500MPa, flaw detection can reach the requirement of grade one in standard binding rate in GB / T 8165< composite board and steel band>, which is 100% binding. When the tensile strength of nichrome reaches 760MPa, elongation percentage A50.8 can reach 30%, and tensile strength of X60MS can reach 600MPa, impact energy at -20 DEG C can reach 300-400J, and shearing area of DWTT at -10 DEG C is greater than 85%.

Description

technical field [0001] The invention belongs to the technical field of metal composite plate production, in particular to an Incoloy 825 nickel-chromium alloy and carbon steel X60MS composite plate and a production method thereof, which are suitable for manufacturing steel pipes for transporting corrosion-resistant oil and natural gas. Background technique [0002] The material of the current oil pipeline is generally low carbon steel without strong corrosion resistance, such as grade B-X80 in API 5L "Technical Specification for American Petroleum Pipeline", but with the development of corrosive oil and gas and offshore oil and gas in the future , General carbon steel can not meet its corrosion resistance requirements, if you continue to use ordinary pipeline steel, it will bring greater quality risk. The use of Incoloy 825 nickel-chromium alloy and carbon steel clad plate as the oil and gas transportation material has significant advantages. Because it has both the corrosio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/02C22C38/06C22C30/02C22C38/50C22C38/48C22C38/46C22C38/42C22C38/40C22C38/28C22C38/26C22C38/24C22C38/20C22C38/18C22C38/16C22C38/14C22C38/12
CPCB21C37/02C22C30/02C22C38/06C22C38/12C22C38/14C22C38/16C22C38/18C22C38/20C22C38/24C22C38/26C22C38/28C22C38/40C22C38/42C22C38/46C22C38/48C22C38/50
Inventor 李家鼎王小勇孙启昆谌铁强李少坡张海丁文华王海宝隋鹤龙白学军马长文
Owner SHOUGANG CORPORATION
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