Stainless Steel ER 304 Welding Wire

Serving a variety of industrial welding requirements, Conrad Welding Supplies, a reputable manufacturer and supplier of stainless steel ER 304 welding wire, is based in Houston, USA. ER 304, which is well-known for its exceptional weldability, durability, and resistance to corrosion, is perfect for general-purpose stainless steel welding applications. With each spool, Conrad Welding Supplies guarantees premium wire quality, accurate chemical composition, and reliable performance. The company provides welding solutions that satisfy both national and international standards, supporting industries like fabrication, construction, food processing, and automotive manufacturing with dependable service. It is supported by state-of-the-art production facilities and a customer-centric approach.

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Stainless Steel ER 304 Welding Wire Specification

Type	Spool (MIG)				Tube (TIG)
Specification ( MM )	0.8、0.9、1.0、1.2、1.6、2.0				1.6、2.0、2.4、3.2、4.0、5.0
Package	S100/1kg S200/5kg S270,S300/15kg-20kg				5kg/box 10kg/box length :1000MM
Mechanical Properties	Tensile Strength Mpa				Elongation after fracture A（%）
	≥ 520				≥ 30
Diameter（MM）	0.8	1.0	1.2	1.6		2.0	2.5	3.2
Current（A）	70 ~ 150	100 ~ 200	140 ~ 220	50 ~ 100		100 ~ 200	200 ~ 300	300 ~ 400

Stainless Steel ER 304 Welding Wire Chemical Compositions of All Weld Metal

Element	C	Mn	Si	S	P	Cr	Ni
Percent	0.04	1.20	0.30	0.015	0.018	19.0	10.0

Stainless Steel ER 304 Welding Wire Mechanical Properties of All Weld Metal

UTS	Elongation
(MPa)	(L= 4d)%
570	38.0

What is Stainless Steel ER 304 Welding Wire?

ER 304 welding wire has 18-20% Chromium, 8-10% Nickel, ≤ 2% Manganese, ≤ 0.08% Carbon, ≤ 1% Silicon, ≤ 0.045% Phosphorus, and ≤ 0.03% Sulfur. Its well-balanced content provides high corrosion resistance and weldability. Mechanical Properties It possesses tensile strength of ~550 MPa, yield strength of ~275 MPa, elongation of ~40%, and hardness of around 180 HB. These characteristics make ER 304 suitable for welding stainless steel structures that need strength, flexibility, and oxidation resistance in different environments.

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Top Manufacturer and Supplier of Stainless Steel ER 304 Welding Wire in Houston , USA

With balanced additions of manganese, silicon, and carbon, the main constituents of stainless steel ER 304 welding wire are chromium (18–20%) and nickel (8–12%). Particularly in mildly corrosive environments, this composition offers exceptional oxidation stability and corrosion resistance. In terms of mechanical properties, ER 304 has a tensile strength of roughly 550–700 MPa, a yield strength of 240–350 MPa, and an elongation of roughly 30–40%. The wire is appropriate for welding austenitic stainless steels because it has good ductility, toughness, and strength. Its low spatter and smooth arc properties make it simple to use for both automated and manual welding processes.

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Types of Stainless Steel ER 304 Welding Wire

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Stainless Steel ER 304 Welding Wire Uses

In many different industries, stainless steel ER 304 welding wire is widely used to weld 304 and other austenitic stainless steels. Architectural structures, dairy machinery, storage tanks, kitchen appliances, and food and beverage equipment are examples of common applications. Additionally, it is used in chemical processing equipment, pipeline construction, and automobile exhaust systems. The wire provides strong, clean welds with outstanding corrosion resistance, making it perfect for MIG and TIG welding processes. Because of its strength, adaptability, and simplicity of use, it is a popular option for both light and heavy fabrication projects, guaranteeing dependable performance both indoors and outdoors.

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.