Wholesale Stainless steel welding wire Factories, Factory

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Wholesale Stainless steel welding wire Factories, Factory

Stainless steel welding wire is a commonly used filler material in the stainless steel welding process and is widely applied in fields such as chemical engineering, energy, food machinery, and medical devices. The common specification is divided into ER304, Â ER308L, ER309L , ER316L , ER309LMo , ER310S. The following is a product introduction of stainless steel welding wire:

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Product Description

Stainless Steel Welding Wire Overview

Stainless steel welding wire is a premium filler material essential for high-quality stainless steel fabrication. It is extensively utilized across critical sectors including chemical engineering, energy production, food processing machinery, and medical device manufacturing.

Our range includes standard industry specifications such as ER304, ER308L, ER309L, ER316L, ER309LMo, and ER310S.

1. Process Types for Stainless Welded Wire

MIG Welding Wire (Gas Shielded): Engineered for high-efficiency automated welding processes.
TIG Wire (Argon Arc): Designed for precision welding, delivering exceptionally clean and aesthetic weld seams.
Submerged Arc Welding Wire: Used in conjunction with flux for robust thick plate welding applications.

2. Key Product Features

Superior Corrosion Resistance: Specifically formulated for harsh environments involving acids, salts, and moisture.
Excellent Welding Performance: Provides a stable arc with minimal spatter and beautiful weld formation.
High Tensile Strength: Matches the structural integrity of base materials, making it ideal for pressure-bearing components.
Versatile Application: Capable of welding plates, pipes, and joining dissimilar metals effectively.

3. Common Grades & Application Guide

Grade	Standard	Main Use
ER308/308L	AWS A5.9, GB/T 29713	304 stainless steel, food equipment, general pipelines
ER316/316L	AWS A5.9	Chemical industry, Marine environments, chloride ion resistance
ER309	AWS A5.9	Dissimilar steel welding (stainless steel to carbon steel)
ER430	AWS A5.9	Automotive exhaust pipes, heat-resistant components

4. Packaging Specifications

Straight Welding Wire (TIG): Standard 1-meter lengths, packed in professional boxes or bundles.
Coiled Welding Wire (MIG): Diameters ranging from 0.8mm to 1.2mm, weight 5-15kg per precision reel.

Technical Data: ER309 (AWS A5.9 / GB/T 29713 S309)

Applications: Designed for welding SUS 309 and similar stainless steels. MIG (THS-309) and TIG (THT-309) options available.

Characteristics: Austenite stainless steel solid wire with a stable arc and excellent all-position performance.

Chemical Composition (Wt.%)
C	Mn	Si	S	P	Ni	Cr	Mo	Cu
≤ 0.12	1.00-2.50	0.30-0.65	≤ 0.020	≤ 0.025	12.00-14.00	23.00-25.00	≤ 0.75	≤ 0.75

Mechanical Properties
Rm/MPa	A/%
605	36

Technical Data: ER316L (AWS A5.9 / GB/T 29713 S316L)

Applications: Ideal for SUS 316L welding. Includes MIG (THS-316L) and TIG (THT-316L) variants.

Chemical Composition (Wt.%)
C	Mn	Si	S	P	Ni	Cr	Mo	Cu
≤ 0.030	1.00-2.50	0.30-0.65	≤ 0.020	≤ 0.025	11.00-14.00	18.00-20.00	2.00-3.00	≤ 0.75

Mechanical Properties
Rm/MPa	A/%
580	38

Certification: Recognized by CCS (Level 316L).

Technical Data: ER308L (AWS A5.9 / GB/T 29713 S308L)

Applications: Ultra-low carbon wire for welding SUS 302L and SUS 304L stainless steels.

Chemical Composition (Wt.%)
C	Mn	Si	S	P	Ni	Cr	Mo	Cu
≤ 0.030	1.00-2.50	0.30-0.65	≤ 0.020	≤ 0.025	9.00-11.00	19.50-22.00	≤ 0.75	≤ 0.75

Mechanical Properties
Rm/MPa	A/%
590	40

Frequently Asked Questions (FAQ)

How do I choose between ER308L and ER316L welding wire?

ER308L is typically used for general 304 series stainless steel applications. ER316L contains molybdenum and should be selected for environments requiring higher corrosion resistance, such as marine or chemical processing.

What is the advantage of ultra-low carbon (L-grade) welding wires?

L-grade wires like 308L and 316L have a lower carbon content (≤0.03%), which significantly reduces the risk of intergranular corrosion after welding.

Can I use MIG wire for TIG welding applications?

While the composition may be similar, MIG wire is wound on spools for continuous feeding, whereas TIG wire is supplied in straight rods. It is recommended to use the specific product designed for your welding equipment.

Which wire is best for joining stainless steel to carbon steel?

ER309 or ER309L is the standard choice for welding dissimilar metals, such as joining stainless steel to mild or low-alloy steels.

What gas shield should be used with MIG stainless welding wire?

MIG welding of stainless steel typically requires an Argon-rich mixture, often with a small percentage of CO2 or Oxygen (e.g., 98% Argon / 2% CO2) to stabilize the arc.

In what positions can these welding wires be used?

Our stainless steel solid wires are designed for all-position welding, offering stable performance and high-quality results whether horizontal, vertical, or overhead.

Product Detail

Wholesale Stainless steel welding wire Factories, Factory

Product Description

Stainless Steel Welding Wire Overview