A36 is a low-carbon steel containing trace amounts of manganese, phosphorus, sulfur, silicon and other elements such as copper. A36 has good weldability and high yield strength, and is the structural steel plate specified by the engineer. ASTM A36 steel plate is often manufactured into a variety of structural steel parts. This grade is used for welded, bolted or riveted construction of bridges and buildings, as well as for general structural purposes. Due to its yield point, A36 carbon plate can be used to design lighter-weight structures and equipment, and provide good weldability. Construction, energy, heavy equipment, transportation, infrastructure and mining are the industries where A36 panels are commonly used.

SK4 Steel Strip is a type of cold-rolled steel strip that complies with the Japanese JIS G 4401 standard and is made of high-carbon tool steel (High Carbon Tool Steel Strip). Due to its high hardness, excellent wear resistance and good heat treatment properties, SK4 steel strip is widely used in fields such as precision stamping, tool manufacturing, elastic parts and wear-resistant components.

Q355 carbon steel coils are medium-strength low-alloy carbon steel coils as defined in the Chinese National Standard (GB/T 1591-2018 Low-Alloy High-Strength Structural Steel). Their core characteristics are moderate strength, balanced comprehensive mechanical properties, and high cost-effectiveness.

Q355 carbon steel coils are defined as low-alloy high-strength structural steel coils within the Chinese National Standard (GB/T 1591-2018 “Low-Alloy High-Strength Structural Steel”). Compared to ordinary carbon steels (such as Q235), it enhances strength and toughness through the addition of trace alloying elements (such as Mn, V, Ti, etc.), while maintaining good workability and weldability. It is one of the core steels meeting the ‘high strength, lightweight’ requirements in industrial applications, widely used in medium-to-high stress scenarios such as construction machinery, building structures, and pressure vessels.

Q195 carbon steel coils are defined as low-carbon structural steel coils within the Chinese National Standard (GB/T 700). Characterised by moderate yield strength, excellent workability and relatively low cost, they constitute one of the most widely used foundational steels across industrial sectors. They are particularly suitable for applications requiring good formability rather than high strength.

Q460 carbon steel coils are defined within the Chinese National Standard (GB/T 1591-2018 “Low-Alloy High-Strength Structural Steel”) as high-strength low-alloy carbon steel coils. Their core characteristics are ‘high strength and favourable comprehensive mechanical properties’. They are extensively utilised in industrial applications demanding high load-bearing capacity and weight reduction, serving as a key material for structural lightweighting to replace traditional medium- and low-strength steels (such as Q235 and Q355). and achieving structural lightweighting.