AWS E9015-G Low-Alloy Steel Welding Electrodes

I. Core Advantages of the Product

Relying on 20 years of experience in manufacturing low-alloy steel welding electrodes, we strictly control every process from raw material selection to production technology to ensure the stable and reliable performance of each electrode. Its core advantages cover multi-dimensional needs:

Full-Scenario Adaptability

Supports AC/DC dual power supplies, with a welding current adaptation range of 40-250℃, meeting the requirements of all-position welding such as flat welding, vertical welding, horizontal welding, and overhead welding;

Can work stably on damp base material surfaces or slightly rusted workpieces, reducing requirements for the construction environment.

Excellent Process Performance

Adopts a low-hydrogen sodium coating design, featuring strong crack resistance and a low-temperature toughness of ≥27J at -46℃, effectively avoiding low-temperature brittle fracture;

Stable arc, small and low spatter emission, low smoke generation, no frequent post-welding cleaning required, and deposition efficiency exceeding 90%, improving welding efficiency.

Flexible Customization Services

Provides free sample trials and supports OEM customization;

Can adjust packaging colors (blue/red/gray/white, etc.) and specifications according to project needs to meet different procurement scenarios.

II. Product Specification Parameters

1. Basic Specifications

2. Chemical Composition of Deposited Metal (%)

3. Mechanical Properties

III. Applicable Scenarios and Industries

1. Energy and Chemical Industry

Core Applications: Pressure vessels and pipelines such as LNG storage tanks, petrochemical reactors, and X70/X80 high-pressure pipelines;

Matching Advantages: Yield strength ≥550MPa copes with high-pressure working conditions, low-hydrogen coating prevents hydrogen-induced cracks, and -46℃ low-temperature toughness adapts to cryogenic scenarios such as -162℃ liquefied natural gas storage.

2. Bridge and Transportation Engineering

Core Applications: Steel box girders of cross-sea bridges, high-speed rail steel bridges, urban viaducts, high-speed rail carriage frames, and heavy truck frames;

Matching Advantages: Tensile strength ≥620MPa resists dynamic loads/wind loads, 18%-20% elongation improves seismic performance, and all-position welding adapts to high-altitude complex operations.

3. Marine and Ship Engineering

Core Applications: Merchant ship keels, marine engineering ship decks, oil drilling platforms, and cross-sea wind power tower frames;

Matching Advantages: Resists salt spray corrosion fatigue, low-hydrogen process prevents seawater stress cracks, and high strength withstands extreme loads such as typhoons and waves.

4. Heavy Machinery and Industrial Equipment

Core Applications: Excavator booms, crane steel structures, mining machinery frames, steel mill rolling mill frames, and blast furnace steel structures;

Matching Advantages: High load-bearing capacity, strong crack resistance (prevents cracks caused by frequent start-stop), and resistance to high-temperature oxidation and thermal fatigue.

5. Special Scenarios

Low-Temperature Construction: Arctic pipelines, steel structure workshops in cold regions, and cold storage equipment (-46℃ impact toughness prevents brittle fracture);

Structural Repair: Old bridge reinforcement, crack repair of heavy equipment (short-arc narrow weld technology enables low-stress welding).

IV. Welding Operation Instructions

Before welding, remove oil stains and rust from the workpiece surface to avoid impurities affecting weld quality;

Dry the electrodes at 300-350℃ for 60 minutes before use to ensure low-hydrogen performance;

After drying, take a small amount of electrodes into a 100-150℃ drying cylinder, and take no more than half a day's dosage at a time;

During welding, the swing width of the electrode should be ≤2.5 times the electrode diameter, and try to maintain a short arc and low current to reduce cracks and improve toughness;

After arc breakage, the arc can be quickly reignited through the unique arc-striking design to ensure the continuous and stable welding process.

V. Packaging and Delivery

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