YT-304H MIG & TIG

The YT-304H MIG & TIG is a premium-grade austenitic stainless steel welding wire engineered for high-temperature applications where superior strength, corrosion resistance, and weld integrity are non-negotiable. Manufactured and supplied by Metals And Welding Specialities, this wire delivers consistent performance for industries that demand reliability under heat and pressure. Classified under UNS S30409 and conforming to ASTM A240 Grade 304H, this product meets international standards for stainless steel used in high-temperature environments, ensuring unmatched mechanical stability and long service life.

Designed for both MIG (Metal Inert Gas) and TIG (Tungsten Inert Gas) welding, the YT-304H wire provides smooth arc stability, minimal spatter, and excellent bead appearance. It’s ideal for joining stainless steel components exposed to elevated temperatures, including boiler tubes, pressure vessels, heat exchangers, and refinery equipment. The higher carbon content in Grade 304H enhances its creep strength, making it suitable for use in service temperatures above 500°C, where standard 304 or 304L grades may not perform optimally.

The YT-304H MIG & TIG is produced with precise chemical composition control, ensuring a balanced ratio of chromium and nickel for superior oxidation resistance. This composition not only resists scaling and pitting in oxidizing environments but also maintains weld metal ductility even after prolonged exposure to thermal cycles. Whether you’re fabricating power generation components or petrochemical structures, this wire ensures consistent deposition, controlled penetration, and minimal risk of weld contamination.

Professionals prefer YT-304H because it delivers excellent weldability in both manual and automated setups. It supports a stable weld pool with uniform wetting action and strong inter-pass bonding, ensuring joints remain sound and durable under cyclic stress. In addition, it offers excellent compatibility with similar base metals, such as 18/8 stainless steels, and can be used effectively on components made from 304, 304H, or 304L grades. Its universal standard name, AISI 304H Stainless Steel, is recognized globally for reliability in critical fabrication environments.

Every batch of YT-304H MIG & TIG from Metals And Welding Specialities undergoes rigorous testing and quality checks to meet ISO-certified manufacturing standards. The wire’s precision winding, clean surface finish, and optimized feeding characteristics ensure trouble-free welding performance, reducing downtime and increasing productivity. This makes it an ideal choice for industries where both operational efficiency and metallurgical integrity are vital — from power plants to chemical processing facilities.

When performance under pressure matters, YT-304H MIG & TIG stands as the trusted solution for achieving precision welds and lasting strength.

• Specification YT-304H MIG & TIG

  Classification	AWS ER308H
  Form	MIG spools, TIG cut lengths, Reels and Coils
  Type Of Welding	Inert Gas Welding
  Current	MIG-DCEP / TIG-DCEN
  Diameters	.023”, .030”, .035”, .045”, 1/16”, 3/32”, 1/8”
  Standard TIG straight lengths are available	36” (914 mm) or 39” (1000 mm) lengths. Other lengths available upon request.
  AWS ER308H MIG & TIG Filler Metal Application & uses	Hardware tools Metallurgy Machinery Construction Shipbuilding Petroleum Chemical plant Power sector Gas Industry

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