E7018 -1

Name: E7018 -1
Brand: SHREE KAILAJI ALLOYS PVT. LTD.
Price: 200.0 INR
Availability: InStock

Price 200.0 INR/ Piece

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MOQ : 10 Pieces

E7018 -1 Specification

Usage
MS ELETRODE

Material
Low Hydrogen Potassium Type, Iron Powder Coated Electrode

Diameter
2.5 mm, 3.2 mm, 4.0 mm, 5.0 mm

Length
350 mm, 400 mm

Opening Pattern
Concentric with standard industrial arc initiation

Voltage
22-28 V

Product Type
WELDING

Welding Current
AC/DC, 60-200 A (depending on electrode size)

Color
GREY

Working Temperature
Room temperature and above; best performance when dry and preheated as per code

Application
Welding of structural steels, bridges, shipbuilding, offshore structures, and pressure vessels

Impact Value
>47J at -30C

AWS Specification
AWS A5.1 E7018-1

Tensile Strength
Minimum 490 MPa (70,000 psi)

Yield Strength
Minimum 400 MPa (58,000 psi)

Polarity
AC or DC positive (DCEP)

Storage Conditions
Should be stored in a dry place; re-bake electrodes at 350C-400C for 1 hour before use if exposed to moisture

Coating Type
Iron powder, low hydrogen

Deposition Rate
High, allows heavy weld metal build-up

Elongation
22%

E7018 -1 Trade Information

Minimum Order Quantity
10 Pieces

Delivery Time
3 Days

Packaging Details
BOC

Main Domestic Market
All India

About E7018 -1

The E7018-1 is a low-hydrogen, iron-powder-coated welding electrode for carbon steels, offering tough, ductile welds with excellent impact strength, even at low temperatures (down to -50C), suitable for heavy structures, pressure vessels, and critical applications on AC or DC+ current. The "-1" signifies an improved version of the standard E7018, providing better arc stability and performance for demanding jobs requiring radiographic quality welds in all positions, notes D&H Secheron, this ESAB product page, and Pinnacle Alloys.

Key Characteristics:

Low Hydrogen (H4R/M): Meets stringent moisture control (HD < 3-4 ml/100g), preventing hydrogen-induced cracking, explains Certilas and this ESAB product page.
Iron Powder Coating: Increases deposition rates and provides good penetration and weldability, according to Hobart Brothers Filler Metals and this Welding Material Sales catalog.
All-Position Capability: Suitable for flat, horizontal, vertical, and overhead welding, say this Welding Material Sales catalog and Pinnacle Alloys.
High Mechanical Strength: Produces tough, ductile welds with excellent toughness at sub-zero temperatures, notes D&H Secheron and Ador Welding.
Current: Works on both AC and DC+ (direct current electrode positive) power sources.

Common Applications:

Welding structural steels, pipes, boilers, and pressure vessels.
Fabricating heavy machinery and equipment subject to dynamic loads and impact.
Ideal for construction, offshore rigs, and power plants

Superior Structural Welding Performance

E7018-1 is renowned for its robust mechanical properties, including exceptional tensile and yield strengths, as well as reliable performance in low-temperature environments. These characteristics make it especially suitable for critical structural welds in heavy industries, ensuring strength, durability, and structural integrity.

Reliable Low Hydrogen Protection

Featuring an iron powder, low hydrogen coating, E7018-1 minimizes the risk of hydrogen-induced cracking and enhances weld quality. This unique formulation is critical for welding thick sections, high-strength steels, and components exposed to challenging service conditions.

Versatile Applications and Easy Handling

This electrode finds applications across a broad range of industries-from bridge and ship construction to the fabrication of offshore structures and pressure vessels. Its compatibility with both AC and DC (DCEP) power sources and availability in multiple sizes make it a go-to solution for varied welding tasks.

FAQ's of E7018 -1:

Q: How should E7018-1 electrodes be stored and prepared before use?

A: E7018-1 electrodes must be stored in a dry environment to prevent moisture absorption. If exposed to moisture, they should be re-baked at 350C-400C for one hour before welding to ensure optimal performance and prevent weld defects.

Q: What is the recommended welding current and voltage for E7018-1 electrodes?

A: The welding current should be set between 60 and 200 Amps, depending on electrode diameter, with a voltage range of 22-28 V. Refer to the electrode packaging or technical data sheet to match settings with electrode size and application.

Q: When is it advantageous to use E7018-1 over other electrodes?

A: E7018-1 is ideal when superior mechanical properties, impact resistance at low temperatures, and a high-quality, crack-free weld are required, such as in structural steelwork, bridges, offshore platforms, pressure vessels, and shipbuilding projects.

Q: Where can E7018-1 electrodes be used effectively?

A: These electrodes are widely used in heavy industries for welding structural steels, bridges, ships, offshore structures, and pressure vessels, especially where enhanced strength and low-temperature toughness are essential.

Q: What are the main benefits of the iron powder, low hydrogen coating on E7018-1?

A: The iron powder increases deposition rates, allowing for quick, heavy weld build-up, while the low hydrogen coating reduces the risk of hydrogen-induced cracking, improving overall weld quality and consistency.

Q: How is the E7018-1 electrode initiated and what is the arc characteristic?

A: This electrode features a concentric opening pattern for standard industrial arc initiation, making it easy to strike and maintain a stable arc throughout the welding process.

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