Stainless Steel ER 309 Welding Wire

In Houston, Texas, Conrad Welding Supplies is a reputable producer and supplier of premium stainless steel welding supplies. Stainless Steel ER 309 Welding Wire, our flagship product, is designed to perform exceptionally well in demanding welding applications. This wire provides outstanding strength, corrosion resistance, and welding consistency, making it perfect for both industrial and professional users. At Conra, prompt delivery, client satisfaction, and product integrity are our top priorities. We are pleased to offer premium-grade ER 309 welding wire that satisfies international standards and guarantees sturdy, dependable welds for both maintenance and fabrication projects. We have years of experience serving a variety of industries.

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Stainless Steel ER 309 Welding Wire Specification

Classification	AWS A5.9, ER309
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 ER308/308L MIG & TIG Filler Metal Application & uses	Hardware tools Metallurgy Machinery Construction Shipbuilding Petroleum Chemical plant Power sector Gas Industry

SS 309 Welding Wire Chemical Compositions of All Weld Metal

Element	C	Mn	Si	S	P	Cr	Ni
Percent	0.02	1.75	0.35	0.010	0.020	23.3	13.8

SS 309 Welding Wire Mechanical Properties of All Weld Metal

UTS	Elongation
(MPa)	(L= 4d)%
570	32.0

What is Stainless Steel ER 309 Welding Wire?

The main components of stainless steel ER 309 welding wire are nickel (12.0–14.0%) and chromium (23.0–25.0%), which provide exceptional heat and corrosion resistance. Manganese, silicon, carbon, phosphorus, and sulphur are also present in trace amounts. With a tensile strength of about 85,000 psi and an elongation of about 30%, the wire is made to be both strong and ductile. It is appropriate for joining dissimilar metals and preserves weld integrity at high temperatures. High-quality stainless steel welding is made possible by the chemical balance, which guarantees smooth arc performance and little spatter.

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Electrodes and Filler Wire

We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.

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Top Manufacturer and Supplier of Stainless Steel ER 309 Welding Wire in Houston , USA

Conrad Welding Supplies, based in Houston , USA, is a trusted manufacturer and distributor of Stainless Steel ER 309 Welding Wire, known for its superior strength, corrosion resistance, and versatility. Our premium ER 309 welding wire is designed for MIG, TIG, and arc welding applications, ensuring durable, high-quality welds in industries such as construction, automotive, shipbuilding, and heavy machinery. Engineered for welding dissimilar metals and stainless steels like 304 to carbon steel, it delivers precision and reliability in demanding environments. Committed to quality, timely delivery, and excellent customer service, we provide top-tier ER 309 stainless steel welding wire solutions.

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Types of Stainless Steel ER 309 Welding Wire

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Stainless Steel ER 309 Welding Wire Uses

Welding stainless steel to mild or carbon steel, in particular, is a common application for stainless steel ER 309 welding wire. It is perfect for adding corrosion resistance to carbon steel surfaces by cladding or overlaying them. ER 309 is frequently utilised in the food processing, petrochemical, power generation, and chemical processing industries. It can also be used to join 304 and 316 stainless steels. It is ideal for boiler components, heat exchangers, and furnace parts due to its high resistance to oxidation and scaling at high temperatures. In demanding environments, Conra’s ER 309 wire guarantees long service life, weld quality, and durability.

Industry We Serve

We provide high-quality electrodes, filler wire, MIG and TIG welding wires to a wide range of industries, including oil and gas, food, marine, petrochemical, power generation, and aerospace.