AWS E9015-G Low-Alloy Steel Welding Electrodes

 

I. Core Advantages of the Product

20 Years of Professional Guarantee: 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.

Full-Scenario Adaptability: Supports AC/DC dual power supplies, adapts to a welding current range of 40-250℃, and meets the requirements of all-position welding such as flat welding, vertical welding, horizontal welding, and overhead welding. It can also work stably on damp or slightly rusted base material surfaces.

Excellent Process Performance: Adopts a low-hydrogen sodium coating design, featuring strong crack resistance and excellent low-temperature toughness (-46℃ impact toughness ≥27J); stable arc, low spatter (small particles), low smoke generation, no frequent post-welding cleaning required, and deposition efficiency exceeding 90%.

Flexible Customization Services: Provides free sample trials, supports OEM customization, and allows for adjustment of packaging colors (blue/red/gray/white, etc.) and specifications according to needs to meet the procurement requirements of different projects.

II. Product Specification Parameters

1. Basic Specifications

Item	Optional Range
Diameter	2.0mm - 5.0mm (conventional: 2.5mm/3.2mm/4.0mm)
Length	300mm - 500mm
Packaging Specification	Standard: 5kg/plastic bag + inner box, 4 inner boxes (20kg)/carton, 1 ton/pallet; customizable

2. Chemical Composition of Deposited Metal (%)

C	Mn	Si	S	P	Ni
≤0.12	≥1.0	≤0.80	≤0.035	≤0.035	1.2-1.5

3. Mechanical Properties

Item	Standard Requirement	Actual Sample Value
Yield Strength (Rel/Rp0.2 MPa)	≥550 MPa (80 ksi)	580~620 MPa
Tensile Strength (Rm MPa)	≥620 MPa (90 ksi)	650~700 MPa
Elongation (A/%)	≥17%	18%~20%

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 meets high-pressure working conditions, low-hydrogen coating prevents hydrogen-induced cracks, and -46℃ low-temperature toughness adapts to cryogenic environments (e.g., -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 resists 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

Item	Details
Packaging Method	5kg/plastic bag + inner box; 20kg/carton (4 inner boxes); 1 ton/pallet; customizable
Delivery Cycle	20-25 days for regular orders, 8-25 days for some in-stock products
Trade Terms	Supports CIF, CFR, FOB, EXW

VI. Contact and Cooperation

To obtain free samples, customize packaging, or consult quotations, you can contact us through the official website (www.hzdayang.com) or official channels. We will provide cost-effective welding solutions and professional technical support to help your projects be implemented efficiently.

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