ECOCR-A Electrode

 

As a core product of Hangzhou Lin'an Ocean Welding Materials Co., Ltd., ECOCR-A welding electrode leverages the 30-year experience in welding material R&D and manufacturing of the "Ocean Welding" brand. With "environmental protection, high efficiency, and stability" as its core advantages, it has become the preferred solution for welding operations in chemical, power, pressure vessel and other fields. Every detail, from material to craftsmanship, from production to after-sales service, carries the brand promise of "as reliable as the ocean". 

ECOCR-A is a low-hydrogen coated welding electrode specially designed for welding medium and high-pressure chrome-molybdenum steel components. It adopts a low-carbon chrome-molybdenum alloy formula and integrates the self-developed "micro-alloyed deposition technology" of Ocean Welding, enabling high-strength welding of heat-resistant steels such as 12Cr1MoV and 15CrMo.​

Its core advantages are as follows: the spatter rate during welding is less than 3%, the tensile strength of deposited metal reaches more than 550MPa, and no complicated cleaning is required after welding. It can be adapted to various welding methods such as shielded metal arc welding and submerged arc welding. Whether it is the welding of power plant boiler pipes, chemical reaction kettles, or high-pressure vessels, it can meet the welding requirements of "high strength, low loss, and long service life", and is a new generation of welding materials that take into account environmental protection requirements and industrial reliability.

1. Environmentally Friendly Formula, Meeting International Standards​

Adopting a lead-free and low-smoke formula, the emission of harmful gases during welding is 40% lower than that of traditional welding materials. It has passed SGS environmental certification, meeting the domestic "Low Volatile Organic Compound Welding Materials Standard" and EU CE certification, and is suitable for welding scenarios of food and pharmaceutical equipment with strict environmental protection requirements.​

2. Excellent Welding Strength and Stability​

Chromium and molybdenum elements in the deposited metal are evenly distributed. The tensile strength at room temperature is ≥550MPa, and the yield strength retention rate at high temperature (550℃) reaches 85%. There are no cracks or porosity defects in the welded joints. According to third-party testing, the fatigue life of welded joints is 30% higher than the industry average, making it suitable for industrial components that bear high pressure and high temperature for a long time.​

3. User-Friendly Operation, Cost Reduction and Efficiency Improvement​

The moisture content of the coating is ≤0.15%, and the arc stability is improved by 25%, allowing even novices to achieve stable welding. The deposition efficiency reaches 90%, reducing the consumption of welding materials by 15% compared with similar products. The slag peeling rate is 100%, eliminating the need for secondary cleaning procedures, and saving 2-3 hours of working time for a single batch of welding operations.

 

Payment Term:30% TT prepayment,70% TT before Delivery
Packing:5kg/Inner box,20Kg/Carton,1000kgs/Pallet
Production Time:Within 25days after recerving prepayment

 

1. Preparation Before Welding​

Clean the oil and rust on the surface of the workpiece to be welded and polish it until the metal luster is exposed;​

Preheat the workpiece according to welding requirements (the recommended preheating temperature is 250-350℃, which can be adjusted according to the thickness of the workpiece);​

Dry the welding electrodes at 350℃ for 1 hour and store them in an 80-100℃ heat preservation cylinder for later use.

 

2. Welding Parameter Reference​

Workpiece Thickness (mm)​	Electrode Diameter (mm)​	Welding Current (A)​	Arc Voltage (V)​
3-8​	3.2​	90-130​	22-26​
8-15​	4.0​	140-180​	24-28​

3. Operation Notes​

• Use short arc welding, keep the electrode movement speed uniform, and avoid porosity caused by too long arc;​
• For multi-layer welding, clean the slag after each layer of welding, and the interlayer temperature should not be lower than 200℃;​
• It is recommended to perform tempering treatment at 650-700℃ for 2 hours after welding to eliminate welding stress.

 

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