Carbon steel, also known as carbon steel, is an alloy composed primarily of iron and carbon, with a carbon content typically between 0.0218% and 2.11%. In addition to iron and carbon, carbon steel may also contain small amounts of silicon, manganese, sulfur, phosphorus and other elements. The content of these elements has an important effect on the properties and quality of carbon steel. Carbon steel can be divided into low carbon steel, medium carbon steel and high carbon steel according to the different carbon content, in which the higher the carbon content, the higher the hardness and strength of carbon steel, but the plasticity will be reduced accordingly. 12

The smelting of carbon steel is usually carried out in a converter or open furnace, and the converter is mostly used for smelting ordinary carbon steel, while the open furnace is suitable for smelting a variety of high-quality carbon steel. Carbon steel is generally used directly in the hot rolled state, but in the manufacture of tools and various machine parts, heat treatment is required according to the requirements of use. 1

Carbon steel has a wide range of applications, including but not limited to Bridges, construction, machine building, shipbuilding, automobile manufacturing, oil pipelines and other industries. According to the different uses, carbon steel can be divided into ordinary carbon structural steel, high-quality carbon structural steel, carbon tool steel and free cutting structural steel. The carbon content of ordinary carbon structural steel is less than 0.8%, and it has good mechanical properties and processing properties. 34

In addition, the chemical composition and properties of carbon steel are also affected by other elements such as silicon, manganese, sulfur, phosphorus, and so on. For example, silicon can improve work hardening performance and reduce high temperature brittleness; Manganese can improve strength and toughness; Although sulfur reduces plasticity and ductility, it can improve cutting performance. Phosphorus increases strength and hardness, but decreases plasticity and toughness. 7

In general, carbon steel is a low cost, good plasticity, widely used in a variety of mechanical and building materials of steel materials, its performance and application depends on its carbon content and other elements of the composition.

SSAW steel pipe is widely used in natural gas, petroleum, chemical industry, power, heat, water supply and drainage, steam heating, pressure steel pipe for hydropower station, thermal power generation, water and other long-distance transmission pipelines and piling, dredging, Bridges, steel structures and other engineering fields.

SSAW steel pipe is widely used in natural gas, petroleum, chemical industry, power, heat, water supply and drainage, steam heating, pressure steel pipe for hydropower station, thermal power generation, water and other long-distance transmission pipelines and piling, dredging, Bridges, steel structures and other engineering fields.

Carbon steel pipe is a kind of steel pipe with carbon as the main alloying element, and its carbon content is between 0.12% and 2.0%, which makes carbon steel pipe have good mechanical properties and processing properties, while the price is relatively low, and is widely used in various fields. Carbon steel pipe is characterized by high strength, high hardness, good wear resistance, and has good weldability and cold and hot processing properties, has been widely recognized and applied. Carbon steel pipes can be seen in construction, manufacturing, transportation, petroleum, chemical and other industries.

There are many types of carbon steel pipes, which can be divided into the following categories according to different characteristics and uses:

Seamless carbon steel pipe. Seamless carbon steel pipe is a kind of pipe with high manufacturing process requirements, made by hot rolling or cold drawing process, with smooth internal and external surfaces, accurate size, high compressive strength characteristics, widely used in oil, natural gas, chemical industry, nuclear energy and other fields.
Weld carbon steel tubes. Welded carbon steel pipe is rolled into a tube by the welding process, and then welded, the production process is relatively simple, low cost, suitable for general pressure requirements are not high occasions.
Galvanized carbon steel pipe. Galvanized carbon steel pipe is coated with a layer of zinc on the surface of carbon steel pipe to improve corrosion resistance and extend service life, especially suitable for pipelines exposed to wet corrosion environment.
Low temperature carbon steel pipe. Low temperature carbon steel pipes are suitable for pipes working under low temperature conditions, can withstand lower temperatures and pressures, and usually have higher toughness and impact strength.
High pressure carbon steel pipe. High pressure carbon steel pipe is used to withstand high pressure pipe system, can withstand higher pressure.
Structural carbon steel pipe. Structural carbon steel pipe is suitable for building structures and mechanical manufacturing pipes, often used to build frames, supports and brackets and other components.

SA387Gr12CL2 steel is a pearlitic heat-resistant steel with high thermal strength (δb≥440MPa) and oxidation resistance at high temperatures, and has a certain ability to resist hydrogen corrosion. Due to the high content of Cr, C and other alloying elements in the steel, the hardening tendency of the steel is obvious.

AISI 4142 steel is ultra-high strength steel, with high strength and toughness, hardenability is also good, no obvious tempering brittleness, high fatigue limit and resistance to multiple shocks after tempering treatment, low temperature impact toughness is good. The steel is suitable for manufacturing large and medium-sized plastic molds requiring certain strength and toughness. High strength, hardenability, good toughness, small deformation during quenching, high creep strength and lasting strength at high temperature. It is used to manufacture forgings requiring higher strength and larger tempering cross-section than 35CrMo steel, such as large gear for locomotive traction, supercharger transmission gear, pressure vessel gear, rear shaft, connecting rod and spring clamp with great load, and can also be used for drilling pipe joints and fishing tools in oil deep Wells below 2000m, and can be used for bending machine molds.

ASTM 4140 is the standard steel number of GB in China, 40Cr steel is one of the most widely used steel in the machinery manufacturing industry. It has good comprehensive mechanical properties, good low temperature impact toughness and low notch sensitivity after tempering. Steel hardenability is good, water quenching can be quenched to 28 ~ 60mm, oil quenching can be quenched to 15 ~ 40mm. In addition to tempering treatment, this steel is also suitable for cyaniding and high-frequency quenching treatment. When the hardness is 174 ~ 229HB, the relative machinability is 60%. The steel is suitable for making medium-sized plastic molds and shaft accessories.

Round steel is a long strip of steel with a solid cross section. Its specifications are expressed in millimeters in diameter. They are divided into three types: hot-rolled, forged, and cold-drawn. The hot-rolled specifications are 5.5-250 mm. They are often used as steel bars, bolts, and various Mechanical parts, round steel larger than 25 mm is mainly used to manufacture mechanical parts and seamless steel tube billets.

The surface of 304 stainless steel plate is smooth, with high plasticity, toughness, and mechanical strength. It is an alloy steel that is not easy to rust. 304 stainless steel plate can be divided into two types according to the production method: hot-rolled and cold-rolled. It is widely used in industrial fields such as chemical, food, medicine, papermaking, petroleum, atomic energy, as well as in the manufacturing of various components such as buildings, kitchenware, tableware, vehicles, and household appliances

Packaging & Delivery:
1. Delivery: within 7-10 days or considering the quantity;
Transport: By bulk or Containers;
Supply ability: 10000 metric tons/ month;
Payment terms L/C, T/T;
2. Packing: It can pack by container or bulk vessel.
Standard export seaworthy package, it use steel belt with bundle according product's size.
We can make it as your requirement.

304 stainless steel coil is a widely used material, ‌ has excellent rust corrosion resistance and good processing properties. ‌ It belongs to austenitic stainless steel, ‌ is divided into cold rolled coil and hot rolled coil two kinds. The characteristics of ‌304 stainless steel coil include beautiful surface, ‌ variety of use possibilities, ‌ good corrosion resistance, ‌ more durable than ordinary steel, ‌ resistance to high temperature oxidation and high strength, ‌ therefore can resist fire, ‌ and has excellent plasticity and weldability. ‌ In addition, ‌304 stainless steel roll also has good intergranular corrosion resistance and processing properties, ‌ is widely used in industrial and furniture decoration industries and food and medical industries. ‌ It should be noted that compared with ordinary 304 stainless steel, ‌ food-grade 304 stainless steel, ‌ its content index is more strict, ‌ allows a certain range of fluctuation, ‌ and limits the content of various heavy metals.

Silicon steel , also known as electrical steel , is an extremely low carbon ferrosilicon alloy material with a silicon content of 0.5% to 4.5%. It has the characteristics of high permeability, low coercivity and large resistivity, so the hysteresis loss and eddy current loss are small. Silicon steel is mainly used as magnetic material in motors , transformers , electrical appliances and electrical instruments . In order to meet the needs of punching and shearing processing when manufacturing electrical appliances, silicon steel also requires a certain plasticity. In order to improve the magnetic susceptibility and reduce the hysteresis loss, the harmful impurity content is required to be as low as possible, and the plate shape is required to be flat and the surface quality is good. 12

According to the different production process, silicon steel can be divided into hot-rolled silicon steel  and cold-rolled silicon steel. Hot rolled silicon steel can be divided into hot rolled low silicon steel and hot rolled high silicon steel , respectively, used in the manufacture of household motors and micro-motors and transformer manufacturing. Cold-rolled silicon steel is divided into non-oriented silicon steel  and oriented silicon steel , non-oriented silicon steel is mainly used in the manufacture of motors and generators, and oriented silicon steel is mainly used in the manufacture of transformer core. 3

Unoriented silicon steel is a ferrosilicon alloy with very low carbon content, and its grains are randomly oriented in deformed and annealed steel plates. It is commonly used in the manufacture of electric motors and generators. 4

The development prospects of silicon steel are considerable, and the national policy encourages and supports the development of silicon steel. In recent years, the output of high-grade unoriented silicon steel for new energy vehicles  has grown fastest, showing the wide application of silicon steel in power, electronics and military industries.

Carbon structural steel plate is steel where the main alloying constituent is carbon, is a low carbon steel that exhibits good strength coupled with formability. It is easy to machine and fabricate and can besecurely welded. The steel can be galvanized to provide increased corrosion resistance.

AISI 4142 steel is ultra-high strength steel, with high strength and toughness, hardenability is also good, no obvious tempering brittleness, high fatigue limit and resistance to multiple shocks after tempering treatment, low temperature impact toughness is good. The steel is suitable for manufacturing large and medium-sized plastic molds requiring certain strength and toughness. High strength, hardenability, good toughness, small deformation during quenching, high creep strength and lasting strength at high temperature. It is used to manufacture forgings requiring higher strength and larger tempering cross-section than 35CrMo steel, such as large gear for locomotive traction, supercharger transmission gear, pressure vessel gear, rear shaft, connecting rod and spring clamp with great load, and can also be used for drilling pipe joints and fishing tools in oil deep Wells below 2000m, and can be used for bending machine molds.

ASTM 4140 is the standard steel number of GB in China, 40Cr steel is one of the most widely used steel in the machinery manufacturing industry. It has good comprehensive mechanical properties, good low temperature impact toughness and low notch sensitivity after tempering. Steel hardenability is good, water quenching can be quenched to 28 ~ 60mm, oil quenching can be quenched to 15 ~ 40mm. In addition to tempering treatment, this steel is also suitable for cyaniding and high-frequency quenching treatment. When the hardness is 174 ~ 229HB, the relative machinability is 60%. The steel is suitable for making medium-sized plastic molds and shaft accessories.