Stainless steel welding rod used for 904 L steel welding

A stainless steel and welding rod technology, applied in the direction of welding/welding/cutting articles, welding media, welding equipment, etc., can solve the problems of low mechanical properties of deposited metal, high melting point, and limited service life of containers, and achieve superior performance and chemical composition The effect of high purity
CN105537801AActive Publication Date: 2016-05-04SHANGHAI ATLANTIC WELDING CONSUMABLES
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANGHAI ATLANTIC WELDING CONSUMABLES
Publication Date
2016-05-04

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Abstract

The invention discloses a stainless steel welding rod used for 904 L steel welding. The stainless steel welding rod comprises a welding core and a titanium-calcium type coating covering the outside of the welding core. The welding core comprises, by weight, 0%-0.02% of C, 1.50%-2.50% of Mn, 0%-0.30% of Si, 24.0%-26.0% of Ni and the like. The coating comprises, by weight, 30%-45% of rutile powder, 8%-15% of marble powder, 3%-10% of fluorite powder, 8%-12% of feldspar, 9%-12% of mica, 1.5%-3% of titanium dioxide, 0.5%-1.5% of fluoroaluminate, 3%-5% of electrolytic manganese and the like. According to the stainless steel welding rod used for 904 L steel welding, the electric arc stability and the liquidity of a molten pool are good, and slag shells of molten slag are uniformly covered; deslagging is easy; a formed welding seam is flat, and the welding seam crack resistance is good; the purity of the chemical composition of postwelding deposited metal is high, and the performance is superior.
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Description

technical field

[0001] The invention relates to a welding material, in particular to a stainless steel welding rod used for welding 904L steel. Background technique

[0002] 904L (N08904,,, 14539) super austenitic stainless steel contains 14.0-18.0% chromium, 24.0-26.0% nickel, 4.5% molybdenum; tensile strength: σb≥520Mpa, elongation: δ≥35%, with good Activation-passivation conversion ability, excellent corrosion resistance, good corrosion resistance in non-oxidizing acids such as sulfuric acid, acetic acid, formic acid, phosphoric acid, and good pitting resistance in neutral chloride ion-containing media At the same time, it has good resistance to crevice corrosion and stress corrosion resistance. It is suitable for sulfuric acid of various concentrations below 70°C, and has good corrosion resistance against acetic acid of any concentration and temperature under normal pressure, and the mixed acid of formic acid and acetic acid. Widely used in: reactors in petrochemical e...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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