Carbon steel square pipe

Carbon Steel Square pipe introduction is a kind of name of square pipe, that is, steel pipe with equal side length. It is made of strip steel through processing and rolling. Generally, strip steel is unpacked, leveled, crimped, welded to form a round tube, which is then rolled into a square tube and cut to the required length.
Carbon steel, also known as carbon steel, is an iron carbon alloy with an internal carbon content of nearly 2%. In addition to carbon, carbon steel contains many other elements, such as manganese, sulfur, or silicon. Generally speaking, the higher the amount of carbon contained in carbon steel, the greater its hardness, the higher the strength will be produced. Just note that the higher the carbon content, the lower the plasticity.
Thickness1-200mm;or as requiredLength:2000-16000mm,or as required
Dimensions10*20-600*800(mm)TechniqueHot Rolled Or Cold Rolle
Heat Treatment Annealed; Quenched; TemperedSurface treatmentRust remove, black painting,Galvanized, antirust oil, varnish, 3PE,
Certification:CE, ISO, SGS,BV,Mill CertificateStandard:ASTM,JIS,GB,DIN,EN
price termsFOB,CRF,CIF,EXW, CPTPayment TermsT/T, L/C at sight,West Union
GradeQ195—Grade B, SS330, SPC, S185
Q215—Grade C,CS Type B, SS330, SPHC,
Q235---Grade D, SS400, S235JR, S235JO, S235J2,
Q345---SS500, ST52,S355JR
Delivery DetailStandard has Stock;  Normal About 3-5days; Custom-made 15-20days;According to order's quantity.
Packingstandard export packing (inside:water proof paper,outside:fumigated wooden box)
Hexagon Shape Bundle, Covered With Tarpaulin, Containers Or In Bulk


Carbon steel is a steel with carbon content from about 0.05 up to 2.1 percent by weight. The definition of carbon steel from the American Iron and Steel Institute (AISI) states:


no minimum content is specified or required for chromium, cobalt, molybdenum, nickel, niobium, titanium, tungsten, vanadium, zirconium, or any other element to be added to obtain a desired alloying effect;

the specified minimum for copper does not exceed 0.40%;

or the specified maximum for any of the following elements does not exceed the percentages noted: manganese 1.65%; silicon 0.60%; copper 0.60%.

The term carbon steel may also be used in reference to steel which is not stainless steel; in this use carbon steel may include alloy steels. High carbon steel has many different uses such as milling machines, cutting tools (such as chisels) and high strength wires. These applications require a much finer microstructure, which improves the toughness.


Carbon steel is a popular metal choice for knife-making due to its high amount of carbon, giving the blade more edge retention. To make the most out of this type of steel it is very important to heat treat it properly. If not, the knife may end up being brittle, or too soft to hold an edge.


As the carbon content percentage rises, steel has the ability to become harder and stronger through heat treating; however, it becomes less ductile. Regardless of the heat treatment, a higher carbon content reduces weldability. In carbon steels, the higher carbon content lowers the melting point.

All of our products can be tested by professional third-party testing institutions, and we attach great importance to product quality and brand honor.

All of our products can be tested by professional third-party testing institutions, and we attach great importance to product quality and brand honor.

Our factory is full of products, the production line is running well, we can supply regular goods immediately, but also can quickly customize the special specifications and materials of goods for customers. We also maintain good cooperation with major steel mills in China or overseas countries to ensure timely and uninterrupted supply of goods to customers.

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