Solder wire material for stainless steel

A technology of stainless steel and welding wire, applied in welding/cutting medium/material, welding medium, welding equipment, etc., can solve the problems of poor weldability of stainless steel, uneven welding seam, difficulty in slag removal, etc., to achieve low cost, improve finish, reduce Effects of Stomatal Sensitivity

CN101318271AInactive Publication Date: 2008-12-10JIANGSU XINGHAI SPECIAL STEEL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2008-12-10
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention discloses a welding wire material for stainless steels and the weight percentage of the concrete chemical compositions of the welding wire material is as follows: C, 0.07 to 0.09; Si, 0.65 to 0.95; Mn, 6.7 to 7.2; P, less than or equal to 0.02; S, less than or equal to 0.015; Cr, 18.5 to 19.5; Ni, 8.0 to 9.5; Mo, less than or equal to 0.4; the remaining is Fe and inevitable impurities. The welding wire material is used for 304 austenitic stainless steels, and welding seams are smooth after the welding is performed and metals at the welding seams have the similar performance as mother metal, no black skin exists and the cost is low.
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Description

technical field

[0001] The invention belongs to the material field of welding wire for metal material welding. In particular, it relates to welding wire materials for welding 304 austenitic stainless steel. Background technique

[0002] Stainless steel is an alloy steel that adds chromium to steel to significantly improve corrosion resistance. According to its composition, it can be roughly divided into chromium series and chromium-nickel series. According to the metal structure, it can be divided into martensite, ferrite, austenite, There are 5 types of austenite-ferrite and precipitation hardening. Austenitic stainless steel (hereinafter referred to as "stainless steel") is a chromium-nickel system in terms of composition, and various steels developed by improving it. In the welding process of 304 austenitic stainless steel, in order to obtain the result of matching the strength of the weld metal with the strength of the base metal, it is necessary to add the necessary a...

Examples

Embodiment 1

[0009] Embodiment 1: A welding wire material for stainless steel, the specific chemical composition weight % of the welding wire material is: C0.07; Si0.65; Mn6.7; P0.01; S0.005; Cr18.5; Ni8.0; Mo0.1; Re0.01; the balance is Fe and unavoidable impurities.

Embodiment 2

[0010] Embodiment 2: A welding wire material for stainless steel, the specific chemical composition weight % of the welding wire material is: C0.075; Si0.70; Mn6.9; P0.015; S0.01; Cr18.8; Ni8.3; Mo0.2; Re0.02; the balance is Fe and unavoidable impurities.

Embodiment 3

[0011] Embodiment 3: A kind of welding wire material for stainless steel, the specific chemical composition weight % of this welding wire material is: C0.08; Si0.8; Mn7.0; P0.015; S0.01; Cr19; Ni8.5; Mo0. 3; Re0.03; the balance is Fe and unavoidable impurities.