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  • Welding flux SJ101G

    Welding flux SJ101G

    GUJIN® is a professional Welding flux SJ101G manufacturers and suppliers in China. If you interested in Submerged Arc welding flux SJ-101G products, please contact with us. We follow the quality of rest assured that the price of conscience, dedicated service.
  • ER309 Stainless Steel

    ER309 Stainless Steel

    GUJIN® is a professional ER309 Stainless Steel manufacturers and suppliers in China. For Stainless steel 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 Stainless steel welding wire has been well received by many customers and enjoyed a good reputation in many countries. GUJIN® Stainless steel welding wire have characteristic design & practical performance & competitive price, for more information on the Stainless steel welding wire, please feel free to contact us.
  • Submerged Arc Welding Wire AWS EM12K

    Submerged Arc Welding Wire AWS EM12K

    GUJIN® is a professional Submerged Arc Welding Wire AWS EM12K manufacturers and suppliers in China, you can rest assured to wholesale and customized submerged arc welding wire from our factory and we will offer you the best after-sale service and timely delivery.
  • Submerged Arc Welding flux SJ-501 A

    Submerged Arc Welding flux SJ-501 A

    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.
  • LPG Cylinder Welding Flux

    LPG Cylinder Welding Flux

    SJ-501 submerged arc welding flux is an active aluminum-titanium type acidic sintered flux, designed for high-efficiency welding, providing stable arc combustion and excellent weld quality. The basicity index of this flux is approximately 0.5-0.8, suitable for welding low-carbon steel and low-alloy high-strength structural steel, and performs particularly well in the manufacturing of LPG (liquefied petroleum gas) cylinders. It ensures a fast welding speed (up to more than 70m/h), easy slag removal, low spatter, and enhances the mechanical strength and corrosion resistance of the weld, applicable to industrial applications such as ships, boilers, and pressure vessels.
  • Special submerged arc welding flux for gas cylinders

    Special submerged arc welding flux for gas cylinders

    SJ-501 submerged arc welding flux is an active aluminum-titanium type acidic sintered flux, designed for high-efficiency welding, providing stable arc combustion and excellent weld quality. The basicity index of this flux is approximately 0.5-0.8, suitable for welding low-carbon steel and low-alloy high-strength structural steel, and performs particularly well in the manufacturing of LPG (liquefied petroleum gas) cylinders. It ensures a fast welding speed (up to more than 70m/h), easy slag removal, low spatter, and enhances the mechanical strength and corrosion resistance of the weld, applicable to industrial applications such as ships, boilers, and pressure vessels.
  • Related Blog
  • Reviews

  • What are the main functions of welding?

    The welding can remove the oxide of the welding surface, reduce the welded melting point and surface tension, and achieve the welding temperature as soon as possible.

  • The Role of Welding Flux

    In the welding process, welding flux plays a core role, and its importance is reflected in the following aspects:

  • What Is the Function of Welding Wire?

    Welding wire plays an indispensable role in the welding process. Specifically, it includes the following points:

  • Submerged Welding flux SJ-101 achieves more efficient welding

    In modern manufacturing, welding is one of the important methods for connecting materials. During the welding process, welding agents are also required outside of the welding rod or wire. Today, a submerged welding powder called SJ-101 has been developed, which can improve welding efficiency.

  • 2025 Frontiers of Submerged Arc Welding Flux Technology: The Innovative Driving Force for Efficient Welding

    In the rapidly developing field of industrial manufacturing, submerged arc welding flux, as a key welding material, is ushering in a new round of technological revolution. According to industry observations, the global submerged arc welding flux market is expected to continue growing in 2025, driving efficiency improvements in fields such as shipbuilding, pipeline construction, and heavy machinery. As welding professionals, it is necessary for us to delve into the latest advancements of this material and explore how to unleash its potential in practical applications.

  • Unlocking the Power of SJ101: The "Workhorse" of Submerged Arc Welding

    In the welding consumables market, few products are as legendary as SJ101. It is often referred to as the "Swiss Army Knife" of agglomerated fluxes. But what makes this specific formulation so popular among fabrication shops and project owners worldwide? As the General Manager of Jinan Gujin Welding Materials Co., Ltd., I have seen our SJ101 used in everything from high-pressure boilers to massive offshore wind towers. Today, I want to break down the technical reasons why SJ101 should be your go-to choice for structural steel.

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