ThePipingMart Blog Grades Weldox 130 – Composition, Properties, and Uses

Weldox 130 – Composition, Properties, and Uses

Weldox 130

Weldox 130, popularly known for its durability, strength, and hardness, has become a material of choice for many industrial applications. It is a high-strength steel plate produced by SSAB, a leading steel manufacturer worldwide. Weldox 130 possesses a unique combination of excellent mechanical and physical properties, making it ideal for several applications. In this blog post, we will discuss all you need to know about Weldox 130, its composition, properties, applications, and more.

What is Weldox 130?

Weldox 130 is an advanced high-strength steel manufactured by SSAB, featuring a minimum yield strength of 1300 MPa. It is designed for applications requiring superior strength, weldability and impact toughness while offering good formability and corrosion resistance.

Weldox 130 Composition

Weldox 130 comprises carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, molybdenum, and boron. These elements are added in different proportions to improve the mechanical and physical properties of the steel plate. The high percentage of nickel, chromium, and molybdenum gives Weldox 130 excellent strength and durability, while boron helps with hardenability during heat treatment.

Weldox 130 Mechanical Properties

Weldox 130 has an impressive tensile strength of 1300 megapascals and a yield strength of 1100 megapascals, making it suitable for high-stress applications. It also has excellent impact resistance and low-temperature toughness, making it perfect for applications that require high resistance against mechanical impacts, such as construction machinery, trucks, and off-road vehicles.

Weldox 130 Physical Properties

Weldox 130 has high density and low thermal expansion, making it suitable for applications in extreme environments where temperature changes are frequent. It also has good ductility and machinability, making it easy to form and machine into different shapes and sizes.

Weldox 130 Uses

Weldox 130 is widely used in several industries, including construction, mining, transportation, and agriculture. It is commonly used to manufacture heavy machinery components, such as cranes, excavators, bulldozers, and other structural and mechanical components requiring high strength and durability. Weldox 130 is also used to manufacture dump truck bodies, trailer chassis, and other parts that must withstand heavy loads.

Weldox 130 Corrosion Resistance

Weldox 130 has excellent resistance against corrosion and oxidation due to its high percentage of chromium and nickel. It is suitable for applications in harsh environments such as offshore oil rigs, marine structures, and chemical processing plants.

Weldox 130 Heat Treatment

Weldox 130 can be heat-treated to achieve higher hardness and strength. However, due to its high percentage of alloying elements, it requires careful heat treatment processes. The steel plate must be preheated to ensure uniform heating and then cooled slowly in a controlled environment to prevent distortion or cracking.

Weldox 130 Machining

Weldox 130 is easy to machine due to its good ductility and machinability. However, due to its high strength and hardness, special cutting tools are required to avoid tools breaking or wearing out quickly. It is advisable to machine Weldox 130 at low speeds to prevent overheating and work hardening.

Weldox 130 Welding

Weldox 130 is a high-strength, low-alloy steel used for welding in demanding applications. It’s made up of 0.2% carbon and 1.5% manganese, which provides excellent toughness and fatigue strength properties even at very low temperatures. Its ability to deliver high strength without needing preheating makes it ideal for many fabricators looking to improve productivity and weld quality on their projects.


Weldox 130 is a high-strength steel plate with exceptional mechanical and physical properties. Its unique composition makes it suitable for several industrial applications that require high strength, durability, and resistance against mechanical impact, corrosion, and extreme temperatures. Weldox 130 is widely used in the construction, mining, transportation, and agriculture industries, making it a material of choice for many manufacturers. Understanding Weldox 130’s composition, properties, and uses is essential for anyone looking to use it for industrial applications.

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