The Hyundai S-7018.1H is a premium iron powder, low-hydrogen welding electrode engineered for high-quality welding of low-temperature strength steels, heavy steel structures, and offshore applications. It provides excellent impact toughness at temperatures as low as -45°C, making it ideal for demanding environments.

This electrode contains a high percentage of iron powder in its coating, which enhances deposition efficiency, ensuring high productivity. It offers stable arc performance, minimal spatter, and easy slag removal, resulting in high-quality welds with low hydrogen content.

Available Variants:

3.2mm – Standard welding electrode for structural steel and general applications.
3.2mm LT – Designed for low-temperature environments, offering enhanced impact toughness in cold conditions.
4.0mm – Higher deposition rate for thick sections and heavy-duty applications.

Key Features:

✔ Extra low hydrogen content (H4R classification)
✔ Excellent impact toughness at -45°C
✔ High deposition efficiency due to iron powder coating
✔ Stable arc with minimal spatter
✔ Easy slag removal for smooth welds
✔ Suitable for AC or DC+ polarity

Typical Applications:

🔹 Heavy steel fabrication
🔹 Low-temperature strength steel structures
🔹 Offshore structures and shipbuilding
🔹 Cryogenic and low-temperature storage tanks
🔹 Pressure vessels and high-strength steel welding

Technical Specifications:

Specification	Details
Classification	AWS A5.1/ASME SFA5.1 E7018-1 H4R
Electrode Diameter	3.2mm, 3.2mm LT, 4.0mm
Pack Weight	5kg
Tensile Strength	≥ 566 MPa
Yield Strength	≥ 493 MPa
Elongation	≥ 30.8%
Impact Value at -45°C	152 J
Polarity	AC or DC(+)

Recommended Current (AC or DC+):

Electrode Size	Current Range (A)
3.2mm	90-140 A
3.2mm LT	90-140 A
4.0mm	130-190 A

Chemical Composition of All-Weld Metal (%):

Element	Composition
Carbon (C)	0.06%
Silicon (Si)	0.25%
Manganese (Mn)	1.35%
Phosphorus (P)	≤ 0.014%
Sulfur (S)	≤ 0.005%

Hyundai Low-Hydrogen Welding Electrode 5kg Pack | S-7018.1H4R

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SKU: S-7018.1H4R 3.2mm

26,250 IQD

Diameter

3.2mm
3.2mm LT
4mm

Available Variants:

3.2mm – Standard welding electrode for structural steel and general applications.
3.2mm LT – Designed for low-temperature environments, offering enhanced impact toughness in cold conditions.
4.0mm – Higher deposition rate for thick sections and heavy-duty applications.

Key Features:

Typical Applications:

Technical Specifications:

Specification	Details
Classification	AWS A5.1/ASME SFA5.1 E7018-1 H4R
Electrode Diameter	3.2mm, 3.2mm LT, 4.0mm
Pack Weight	5kg
Tensile Strength	≥ 566 MPa
Yield Strength	≥ 493 MPa
Elongation	≥ 30.8%
Impact Value at -45°C	152 J
Polarity	AC or DC(+)