20# – ASTM 1023 Plate S22C Carbon Coil C22(1.0402) Carbon Sheet for industry

Product Name Carbon Coil C22(1.0402) Carbon Sheet
Material 20#
Mechnical Commercial / Drawing / Deep Drawing
/Extra Deep Drawing/Structural Quality
Surface Treatment Chromated and oiled, and ant-ifinger
Hardness Softy, half hard ,hard quality
Thickness 0.12-6.0mm
Width 600-1500mm
Coil weight 3-8MT/Coil or as request
Packaging Export standard, seaworthy
Transport Type Container, bulk and train

Product Introduction

20# steel is a commonly used low carbon structural steel in China. It belongs to the category of high-quality carbon structural steel, and its chemical composition and mechanical properties are regulated by the Chinese national standard JB/T 6057-92.


20# steel is equivalent to 1023 in the United States, JIS S22C in Japan, DIN C22 in Germany, BS No. IC22 in Britain,UNI C20/C21 in Italy, and S20C in Taiwan CNS standards.


The 20 of 20# steel means that the carbon content is 0.2%, the shear strength is 275~392MPa, the tensile strength is 253~500MPa, the yield strength is 275MPa, and the elongation is 25%.


20# carbon steel has the following general characteristics:


1)Low Carbon Content: 20# steel belongs to the category of high-quality low-carbon carbon steel, cold extruded, carburized and hardened steel. The carbon content in 20# is generally less than 0.25%, making it a low carbon steel suitable for welding and forming processes.


2)Good Weldability: 20# steel can be easily welded using common welding methods such as arc welding, resistance welding, and gas welding.


3)High Strength: Although it is a low carbon steel, 20# steel has relatively high tensile strength, with a yield strength of 245 MPa and a tensile strength of 253-500 MPa.


4)Excellent Plasticity: 20# steel exhibits good plasticity, allowing it to be formed into various shapes and structures without fracturing.


  • Wide Application: 20# steelis widely used in general structural and engineering purposes, including construction, bridges, machinery manufacturing, transportation equipment, and other industries where strength and durability are required.

20# Carbon steel coil usually refers to a kind of low-carbon steel coil, its chemical composition is mainly composed of carbon, iron and a small amount of other elements.The following is the chemical composition range of a common 20# carbon steel coil:

. Carbon (C): 0.17% – 0.24%

. Silicon (Si): ≤ 0.35%

. Manganese (Mn): 0.30% – 0.60%

. Phosphorus (P): ≤ 0.035%

. Sulfur (S): ≤ 0.035%

20#Mechanical properties of steel plate:

.Tensile strength: 410mpa;

.yield strength: 245mpa;

.elongation after breaking: 25;

.Cross-section shrinkage: 55; no impact




20# steel has a wide range of applications in various industries due to its good mechanical properties and affordability. Some common applications of 20# steel include:


1)Construction: 20# steel is extensively used in the construction industry for various structural components, such as beams, columns, and frameworks. It is suitable for both residential and commercial construction projects.


2)Bridges: 20# steel is commonly used for bridge construction, including the fabrication of bridge girders, piers, and structural supports. Its high strength and good weldability make it suitable for bridge applications.


3)Machinery Manufacturing: 20# steel is employed in the manufacturing of machinery and equipment components, such as frames, chassis, and structural parts. Its versatility and easy machinability make it a preferred choice for various machinery applications.


4)Automotive Industry: 20# steel is utilized in the automotive industry for the production of components like car frames, chassis, and structural parts. Its high strength and good formability make it suitable for automotive applications.


5)Railway Vehicles: 20# steel is also used in the manufacturing of railway vehicles, including railcar bodies, underframes, and structural components. Its mechanical properties and durability meet the requirements of the railway industry.


6)Storage Tanks: 20# steel is sometimes employed in the construction of storage tanks for storing liquids or gases. Its weldability and strength make it suitable for this application.


  • General Fabrication: 20# steelis widely utilized in general fabrication processes where a low carbon steel with good mechanical properties is required. It can be formed, welded, and machined to create various structures and components.

Classification By Size

The length is generally 2440mm, 2000mm, 3050mm, 4000mm, 3000mm, and the thickness is distinguished by cold rolling and hot rolling. Cold rolling mainly has thickness 1.0mm, 1.2mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm. The main thickness of hot rolling is 3.0mm, 4.0mm, 6.0mm, 8.0mm, 10.0mm, and the width is generally 1000mm, 1219mm, 1500mm.Please contact customer service for general specifications.

Hot-rolled products have excellent properties such as high strength, good toughness, easy processing and good weldability, so they are widely used in manufacturing industries such as steel, construction, machinery, boilers, and pressure vessels. Application range: (1) After annealing, it is processed into ordinary cold rolling; (2) The galvanizing unit with pre-annealing treatment device processes galvanizing; (3) Panels that basically do not need to be processed.

Hot-rolled coils (in the form of flat plates or coils) generally have a thickness of 2.0-13.5mm, of which the price of 2.0-3.0mm hot coils gradually decreases from thin to thick; most steel mills have a basic price of 3.1mm-13.5mm Equivalent, the price of 3.1-4.0mm and 9.5mm-13.5mm hot plate coils in some manufacturers and markets may be higher than the price of 4.0mm-9.5mm plates. Hot plate coils represent products with a thickness of 5.5mm. Under normal circumstances, the price of flat plates is slightly higher than the price of coils.

Why Choose Us?

*Top 20 companies in steel industry trade volume.

*Customized processing steel one-stop purchase.

*Exports of steel exceeded tens of billions for 5 consecutive years.

**We have a complete set of testing equipment, such as ut & ET, hydraulic testing equipment, spectrometer, scanning electron microscope, etc, and have passed SGS TUV

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