China ER309 welding wire Manufacturers, Suppliers, Factory

GUJIN® is a professional Submerged Arc welding flux SJ107 manufacturers and suppliers in China, you can rest assured to wholesale and customized Welding flux SJ107 from our factory and we will offer you the best after-sale service and timely delivery.

As the professional manufacture, GUJIN® would like to provide you Welding flux SJ601. And GUJIN® will offer you the best after-sale service and timely delivery.

GUJIN® is a leading China Submerged Arc Welding Wire EH14 manufacturer, supplier and exporter. Adhering to the pursuit of perfect quality of products, so that our Submerged arc welding wire have been satisfied by many customers. Extreme design, quality raw materials, high performance and competitive price are what every customer wants, and that's also what we can offer you. Of course, also essential is our perfect after-sales service. If you are interested in our Submerged arc welding wire services, you can consult us now, we will reply to you in time!

As the professional manufacture, GUJIN® would like to provide you Submerged Arc Welding Wire EM13K. For Submerged arc welding wire, everyone has different special concerns about it, and what we do is to maximize the product requirements of each customer, so the quality of our Submerged arc welding wire has been well received by many customers and enjoyed a good reputation in many countries. GUJIN® Submerged arc welding wire have characteristic design & practical performance & competitive price, for more information on the Submerged arc welding wire, please feel free to contact us.

Submerged Arc Welding Flux SJ-501 A is a high-performance agglomerated aluminum-rutile type acid sintered flux with a basicity index of approximately 0.5-0.93 and a particle size of 10-60 mesh (about 0.3-2.0mm). It is specially designed for low-alloy steels and high-strength steels (such as ASTM A514, A517), supporting single-wire or multi-wire high-speed welding (up to 100m/h), and is suitable for applications such as small cylinders, LPG tanks, pressure vessels, and shipbuilding. This flux complies with the standards of EN760 SA AR 1 88 AC H5 and AWS A5.17/5.23 F7A0-EL12, providing stable arc, excellent slag detachability, smooth weld seams, and resistance to cracks and pores. It is not sensitive to surface rust and scale, ensuring efficient welding quality and excellent mechanical properties, such as high impact toughness and tensile strength.

SJ301 submerged arc welding flux is a high-performance agglomerated calcium-silicate flux designed for efficient welding of low-carbon and low-alloy steels. With a neutral basicity index of 1.0, it delivers stable arc performance, effortless slag detachment, and superior weld bead aesthetics, making it ideal for high-speed applications in industries like pipeline construction, bridge building, and machinery fabrication. Certified under AWS A5.17 F6A0-EL8 and F7A2-EM12K standards, this flux minimizes porosity and ensures strong mechanical properties, such as tensile strength up to 670 MPa when paired with EM12K wire. As a reliable choice from Chinese manufacturers, SJ301 enhances productivity by supporting AC/DC currents and multi-layer welding without interface defects. Perfect for structural projects requiring durability and cost-efficiency.