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.

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.

Complies with GB/T 700-2006 standard, with carbon content ranging from 0.12% to 0.20%, manganese content from 0.30% to 0.70%, silicon content not exceeding 0.30%, and phosphorus and sulphur content both not exceeding 0.045%.
Processing properties: Exhibits excellent weldability, permitting connection via multiple welding methods without requiring special heat treatment post-welding. Concurrently, it possesses good cold working properties, enabling operations such as bending and stamping. During hot working, it can withstand elevated temperatures, making it suitable for processes including forging and hot rolling.