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2. Wide Options For Your Unique MIG Welding Wire
3. Original Manufacturer with Competitive Price
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Our in-house modern production plant allows us to offer great quality options to appeal to your target customers. Our streamlined manufacturing processes are here to provide you with the best MIG welding wire in the market.
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MIG WELDING WIRE PRODUCTS

AWS A5.18 ER70S-3 Mig Welding Wire
AWS A5.18 ER70S-3 Mig Welding Wire
1. AWS A5.18 ER70S-3 is a carbon steel MIG welding wire. 
2. Primarily used for general-purpose welding of mild and low-alloy steels.
3. "ER"-electrode or rod, "70" indicates minimum tensile strength 70,000 psi.
4. "S" means solid wire, "3" refers chemical composition, deoxidizer levels.
5. This wire is known for its good arc stability and versatility in various.
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AWS A5.18 ER70S-G Mig Welding Wire
AWS A5.18 ER70S-G Mig Welding Wire
1. ER70S-G is a general classification for mild steel MIG welding wire. 
2. "G" signifies a "general" classification, specific  not fully defined by AWS.
3.  "G" signifies agreed upon between the manufacturer and purchaser.
4. Variations in composition to optimize for specific characteristics.
5. Commonly used for welding various 500MPa (70 ksi) tensile strength.
6. Generally requires 100% CO2 or an Argon/CO2 mixed shielding gas.
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AWS A5.18 - SG3(G4Si1) Mig Welding Wire
AWS A5.18 - SG3(G4Si1) Mig Welding Wire
1. AWS A5.18 SG3(G4Si1) is a higher-silicon, mild steel MIG welding wire. 
2. "SG3" and "G4Si1" are European (DIN/EN ISO) classifications.
3. Indicating a composition similar to an advanced ER70S-6.
4. It features elevated silicon and manganese content.
5. This wire offers excellent arc stability, very low spatter, and a smooth bead.
6. It's ideal for welding unalloyed and fine-grained steels in demanding.
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AWS A5.18 ER70S-6 Mig Welding Wire
AWS A5.18 ER70S-6 Mig Welding Wire
1. AWS A5.18 ER70S-6 is a copper-coated mild steel MIG welding wire. 
2. Contains higher level of manganese and silicon, strong deoxidizing power.
3. Produce X-ray quality, porosity-free welds with excellent tensile strength.
4. Its high silicon content enhances the fluidity of the weld pool.
5. Resulting in a smoother bead appearance and less post-weld grinding.
6. ER70S-6 is widely used for general fabrication.
7. Compatible with 100% CO2 or argon/CO2 mixed shielding gases.
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AWS A5.28 ER80S-G Mig Welding Wire
AWS A5.28 ER80S-G Mig Welding Wire
1. ER80S-G is a solid electrode for Gas Metal Arc Welding (GMAW). 
2. The "80" indicates a minimum tensile strength of 80,000 psi (550 MPa).
3.  The "S" denotes a solid wire, and the "G" is a "general" classification.
4. ER80S-G wires are typically alloyed with elements like (Cr) and (Mo) .
5. For high-strength structural steels, pressure vessels, and components.
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AWS A5.28 ER90S-G Mig Welding Wire
AWS A5.28 ER90S-G Mig Welding Wire
1. ER90S-G is a solid MIG welding wire for low-alloy steels. 
2. The "90" indicates a minimum tensile strength of 90,000 psi (620 MPa).
3.  These wires engineered with various alloying elements (like Ni, Cr, Mo).
4. ER90S-G is used for welding enhanced mechanical properties are critical.
5. It typically requires shielding gases like Argon/CO2 mixes or 100% CO2.
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AWS A5.28 ER100S-G Mig Welding Wire
AWS A5.28 ER100S-G Mig Welding Wire
1. AWS A5.28 ER100S-G is for Gas Metal Arc Welding (GMAW). 
2. "100" signifies a minimum tensile strength of 100,000 psi (690 MPa) .
3.  The "S" denotes a solid wire, and the "G" is a "general" classification
4. G is not rigidly specified by AWS but tailored by the manufacturer.
5. Highly alloyed, typically containing Nickel, Chromium, and Molybdenum
6. Chieve exceptional strength, toughness (even at very low temperatures).
7. ER100S-G is primarily used in requiring superior mechanical properties.
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AWS A5.28 ER90S-B3 Mig Welding Wire
AWS A5.28 ER90S-B3 Mig Welding Wire
1. ER90S-B3 is wire designed for welding 2.25%(Cr)-1%(Mo) low-alloy steels. 
2. The "90" indicates a minimum tensile strength of 90,000 psi (620 MPa).
3. "B3" precisely 2.25% Cr and 1% Mo,suitable for creep-resistant application.
4. Used in industries requiring high-temperature, high-pressure service.
5. It requires careful control of preheat, interpass temperature.
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AWS A5.18 CO2 Drumpack Solid Welding Wire
AWS A5.18 CO2 Drumpack Solid Welding Wire
1. A type of MIG wire designed for use with 100% CO2 shielding gas. 
2. Large drum or bulk packaging, reduces downtime from spool changes.
3.  This wire typically falls under classifications like ER70S-6 or ER70S-3.
4. It's engineered for high-volume, automated, or semi-automated.
5. The wire provides excellent penetration and suitable for various tasks.
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AWS A5.18 SG2(G3Si1) Mig Welding Wire
AWS A5.18 SG2(G3Si1) Mig Welding Wire
1. AWS A5.18 SG2(G3Si1) refers to mild steel MIG welding wire classification. 
2. "SG2" is a common European (DIN/EN) designation.
3.  "G3Si1" is EN ISO 14341-A , roughly equivalent to AWS ER70S-6.
4. This wire contains specific levels of silicon (Si) and manganese (Mn).
5. It's widely used for general fabrication , including sub-zero temperatures.
6. SG2(G3Si1) wire provides stable arc performance, low spatter.
7. Compatible with 100% CO2 or argon/CO2 mixed shielding gases.
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ISO14341 G3Si1 Solid Welding Wire
ISO14341 G3Si1 Solid Welding Wire
1. ISO14341 SG2 is a Mig Welding Wire. 
2. Contains higher level of manganese and silicon, strong deoxidizing power.
3. Produce X-ray quality, porosity-free welds with excellent tensile strength.
4. Its high silicon content enhances the fluidity of the weld pool.
5. Resulting in a smoother bead appearance and less post-weld grinding.
6. SG2 is widely used for general fabrication.
7. Compatible with 100% CO2 or argon/CO2 mixed shielding gases.
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DETAILS OF MIG WELDING WIRE

Type

Chemical Composition

AWS A5.18

 GBT8110 C Mn Si P S Ni Cr Mo V Cu

ER70S-6

 ER 50-6 0.06~0.15 1.40~1.85 0.8~1.15 ≤0.025 ≤0.035 ≤0.15 ≤0.15 ≤0.15 ≤0.03 ≤0.50

ER50S-6

 ≤0.025

SG2 / G3Si1

 EN 440
G46-3
ISO14341		 0.06-0.14 1.30~1.60 0.70~1.00 ≤0.025 ≤0.025 ≤0.15 Al≤0.02 ≤0.15 Ti+Zr≤0.15

SG3 / G4Si1

 0.06~0.14 1.60~1.90 0.80~1.20 ≤0.025 ≤0.025 ≤0.15 Al≤0.02 ≤0.15 Ti+Zr≤0.15

ER70S-3

 ER 5754
(AlMg 3)		 0.06~0.15 0.9~1.40 0.45~0.75 ≤0.025 ≤0.035 ≤0.15 ≤0.15 ≤0.15 ≤0.03 ≤0.50
ER70S-G Sample 0.07~0.10 1.51~1.80 0.65~1.00 ≤0.035 ≤0.035 Ti Actually: As agreed between
supplieand buyer ( Normal ER70S-6 +Ti )
0.15~0.20
Note: AWS A5.18: Any copper plating layer on the filler wire, plus the copper with the metal itself, shall not exceed the maximum of 0.50% (including copper plating).
EN440 : If Cr ≤ 0.15,Cu ≤0.35 and V ≤ 0.03 are not specified.The residual copper content in the steel plus the total coating should not exceed 0.35%(m/m).
 
Type

Mechanical Properties
AWS A5.18 GBT8110 Tensile Strength Mpa Yield Strength Mpa Elongation A ( % ) Impact Value KV2 (J)-30℃
ER70S-6 ER 50-6 ≥480 ≥400 ≥22 ≥27
ER50S-6 ≥500 ≥420
SG2 / G3Si1 EN 440
G46-3
ISO14341		 530~680 ≥460 ≥20 ≥47
KV2 (J)-40℃
SG3 / G4Si1 ≥47
ER70S-3 ER 5754
(AlMg 3)		 ≥480 ≥400 ≥22 -20℃
≥47
ER70S-G Sample ≥480 ≥400 ≥22 Actually: As agreed between supplieandbuyer(Normal ER70S-6 +Ti)
Note:For ER50-3/ER50-6 wire, tensile resistance and yield may be reduced by every 10 Mpas when elongation past the minimum value every 1%,but the minimum tensile resistance value shall not be less than 480 Mpa and the yield shall not be less than 400 Mpa.
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CHARACTERISTICS  line

WHAT IS MIG WELDING WIRE?

1）Classification System: The classification, such as ER70S-6, provides a precise breakdown of the wire's characteristics. This alphanumeric code helps welders identify the electrode's tensile strength, welding process suitability, and chemical composition.The AWS A5.18 specification is the standard that classifies carbon steel electrodes and rods for gas shielded arc welding, which includes MIG welding (GMAW). This standard ensures that solid wires used for welding mild and low-alloy steels have consistent chemical compositions and mechanical properties.

2）The "ER" Prefix: The designation starts with "ER," which stands for Electrode and Rod. This means the filler metal can be used as a continuous electrode for MIG welding or cut into straight lengths to be used as a rod for TIG welding.

3）Tensile Strength: The first two digits, "70" in ER70S-6, specify the minimum tensile strength of the deposited weld metal in thousands of pounds per square inch (ksi). "70" indicates a minimum tensile strength of 70,000 psi (480 MPa).

4）Wire Composition: The "S" in the classification denotes that the wire is a solid wire, which is a key distinction from flux-cored wires (A5.20). The final number or letter (e.g., "-6" in ER70S-6) indicates the specific chemical composition of the wire, including levels of deoxidizers like silicon and manganese.

5）Chemical Composition: The "-6" designation, a very common type, signifies a wire with high levels of silicon and manganese. This makes it an excellent choice for welding on steel with moderate rust, mill scale, or other surface contaminants, as the extra deoxidizers help produce a clean, porosity-free weld.

6）Welding Process and Shielding Gas: Wires classified under AWS A5.18 are designed for gas shielded arc welding. They require an external shielding gas, typically 100% CO2 or an Argon/CO2 mixture. This gas protects the weld pool from the atmosphere, ensuring a strong and defect-free weld.
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MIG WELDING WIRE DOWNLOAD

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Welding Wire Catalogue-giant weld.pdf 5.54MB 2025-08-17 download
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MIG WELDING WIRE APPLICATION

035 mig welding wire,arc welding wire, wire feed welding can be used such as ships, heavy-duty machines, pressure vessel etc.

MIG WELDING WIRE WORKSHOP SHOW

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MIG WELDING WIRE CERTIFICATION

ISO
CE
CE(1)
CCS
CE-气保焊丝(1)
DB-CERTIFICATE
SGS
LRQA
CE-confirmation-2022-LUCK-WELDING-1
Aluminum--MSDS-1
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CHOOSE YOUR MIG WELDING WIRE

 
MIG WELDING WIRE SIZE
 
mm: 0.8mm / 0.9mm / 1.0mm / 1.2mm/ 1.6mm/ 2.0mm
inch: 0.030 / 0.035 / 0.040 / 0.045/ 0.063/ 0.079 / 3/16 - 3/64
 
 
SPOOL WEIGHT(PACKAGE)
 
1kg / 5kg / 15kg / 250kg
  
 
 
TIG WIRE SIZE
 
mm: 1.2mm/ 1.6mm/ 2.0mm/ 2.4mm/ 3.2mm/ 4.0mm/ 5.0mm
  
 
 
TUBE WEIGHT(PACKAGE)
 
5kg / 15kg / 1LB / 2LB / 4.5LB / 15.5LB / 33LB
  
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MIG WELDING WIRE COOPERATION PROCESS

STEP 1

Send your inquiry

STEP 2

Quote price

STEP 3

Sample Approval

STEP 4

Negotiate price and lead time

STEP 5

Sign the contract

STEP 6

Payment and production

STEP 7

Inspection

STEP 8

Shipment​​​​​​​

MIG WELDING WIRE FAQ

  • Q What is AWS A5.18 MIG Welding Wire?

    The **AWS A5.18** is the industry standard that classifies **carbon steel electrodes and rods** used for **gas shielded arc welding**, most commonly **MIG welding (GMAW)**.
    This specification ensures that all solid wires for welding mild and low-alloy steels meet strict chemical composition and performance criteria.
    Understanding this classification is essential for welders to select the appropriate **welding wire** to achieve strong, reliable, and defect-free **welds** on a variety of steel types.

  • Q How does the AWS A5.18 classification system work?

    The classification system uses a specific alphanumeric code to provide detailed information about the wire’s characteristics.
    A common example is **ER70S-6**, which can be broken down to understand the wire’s tensile strength, its form, and its chemical composition.
    This standardized system makes it straightforward for fabricators and welders to choose the correct filler metal for their specific application, ensuring compatibility with the **base metal** and welding process.

    What do the parts of an AWS A5.18 designation mean?

    The "ER" prefix stands for **Electrode** and **Rod**, indicating the filler metal can be used as a continuous wire for MIG welding or as a rod for TIG welding.
    The first two digits, such as "70," denote the minimum tensile strength of the deposited weld metal, which in this case is 70,000 psi (480 MPa).
    The "S" indicates that the wire is a **solid** wire, which distinguishes it from flux-cored wires.
    The final number, for example, "-6," specifies the precise chemical composition of the wire, particularly the levels of deoxidizers like silicon and manganese.

  • Q What are the most common types of AWS A5.18 wires?

    Two of the most widely used classifications are **ER70S-3** and **ER70S-6**, each with distinct properties suited for different welding conditions.

    What are the characteristics of ER70S-6 welding wire?

    **ER70S-6** is a very popular **carbon steel MIG wire** known for its high levels of **silicon and manganese**.
    These deoxidizers make it an excellent choice for welding on steel that has moderate rust, mill scale, or other surface contaminants.
    The wire produces a smooth arc, good bead wetting action, and a clean, porosity-free weld, making it ideal for general fabrication, automotive repairs, and shipbuilding.

    What are the characteristics of ER70S-3 welding wire?

    **ER70S-3** is another common type, but it contains lower levels of deoxidizers compared to ER70S-6.
    It is best used on clean, shiny steel surfaces that are free of contaminants.
    This wire is often chosen for its good arc stability and smooth appearance, making it a reliable choice for manufacturing and applications where a clean surface is guaranteed.

  • Q What welding processes and shielding gases are used with AWS A5.18 wires?

    Wires classified under **AWS A5.18** are designed specifically for **gas shielded arc welding**.
    They require an external shielding gas to protect the weld pool from the atmosphere, which is essential for preventing defects like porosity.
    Common shielding gases include 100% **CO2** and various **Argon/CO2 mixtures**, with the specific gas choice influencing the weld's penetration, arc stability, and final appearance.
    These wires are primarily used in **MIG welding (GMAW)**, a semi-automatic process prized for its high speed, efficiency, and ease of use.

     
     

FACTORY FAQ

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