Carbon Steel

ChengduShushengtai Steel Co., Ltd. is a leading domestic manufacturer and supplier of carbon steel, offering a comprehensive range of high-performance carbon steel pipes and carbon steel sheet plates. Our carbon steel products offer outstanding strength and versatility, with tensile strength typically ranging from 400 to 800 MPa and excellent resistance to wear and deformation. They are widely used in construction, automotive, energy, and heavy machinery applications, where reliability and load-bearing performance are critical.

345D Steel Plate
Executive standard :GB/T1591(GB/T3274).
Tensile strength :450-630.
Impact test :-20℃:≥34.
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355 Carbon Steel Plate
Parameters: thickness 8-260mm;
Tensile strength RM630-450MPa;
Yield strength: 355-295MPa;
The elongation after fracture is 21-22%.
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235 Carbon Steel Plate
Thickness: 8mm-600mm
wide: 1500mm-4000mm
long: 4000mm-20000mm
Executive standard: EN10028
Type: carbon structural steel plate
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Low Temperature Carbon Steel Pipe
Product Description: ISO9001:2008 quality certification, AS91000 aerospace quality management system.Offer prices.International quality.
Product selling point: craft, beautiful appearance,...
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5310 Seamless Steel Tube
20G seamless steel pipe is a kind of high pressure carbon structural steel, boiler special pipe, carbon content 0.17-0.24%, tensile strength 410MPa, yield point 230-250MPa.Our factory specialized...
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3087 Seamless Steel Tubes
Standard: GB3087 boiler tube.
Production process: hot rolling, cold rolling or cold dialing made Allowable deviation of outer diameter: D1±1.5%, minimum ± 0.75mm, D2±1.0%.Minimum + / - 0.50...
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Fire-Fighting Plastic Coated Steel Pipe
Production process;Epoxy outer polyethylene coated steel pipe •FBE coated steel pipe •3LPE coated steel pipe •SSAW steel
Plastic coated fire fighting steel pipe;- Made in China Zhongyan...
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Construction Steel Pipe
Used to transport gas, water and oil in the petroleum or natural gas industry.
Common steel pipe and galvanized steel pipe, stainless steel pipe, welded steel pipe, spiral steel pipe,...
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Structural Black Carbon Steel Pipe
Standard;GB/T8162-2008.
The standard is applicable to seamless steel tubes for general structure and mechanical structure.
Orders can be made according to size, shape, weight and...
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Low Carbon Seamless Pipe
Competitive price and quality
Dimensions: 1/4 "to 36" outside diameter, wall thickness 1.25mm to 50mm
Uniform surface and good quality
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Plastic Coated Composite Pipe
Coated plastic pipe and other steel pipe products, high output, complete inventory, long service life, comprehensive cost is low, easy installation.
The main products are power piping system,...
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45# Precision Steel Tube
Competitive price.Quality assurance.
Minimum order quantity :5 tons
Packing details: export packing/wooden case packing/according to customer's requirement
Delivery time :7-15 days
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Types of Carbon Steel

Carbon Steel Pipe

Our carbon steel pipes deliver reliable performance under working pressures up to 25 MPa and temperatures reaching 400°C. With tensile strength typically between 450–700 MPa and excellent corrosion resistance, they are widely used in oil and gas pipelines, structural frameworks, and heavy-duty industrial systems.

Carbon Steel Sheet Plate

Carbon steel sheets and plates offer outstanding hardness and yield strength, with thicknesses ranging from 0.5 mm to 200 mm to suit diverse fabrication needs. They are widely used in shipbuilding, automotive manufacturing, pressure vessels, and heavy machinery for their superior load-bearing capacity and weldability.

Carbon Steel Grades

Grade	Description	Key Features
Q195 / Q215 / Q235	Low-carbon structural steel	Excellent weldability, good formability, widely used in construction and structural applications
Q275 / Q295	Medium-carbon structural steel	Higher strength, reliable toughness, suitable for heavy machinery and industrial structures
Q345 / Q355	High-strength low-alloy steel	Superior mechanical properties, excellent durability, corrosion resistance, ideal for pressure vessels and infrastructure
A36 / ASTM A283 / ASTM A516	International standard carbon steel grades	Consistent quality, high structural performance, suitable for global industrial projects
S235 / S275 / S355	European standard structural steel	High reliability, good ductility and toughness, widely used in construction and engineering applications

Application Industries of Carbon Steel

Construction and Infrastructure

Carbon steel plays a vital role in the construction industry, being extensively used for structural frameworks, bridges, reinforcement bars, and building components. Its high load-bearing capacity and resistance to deformation make it ideal for large-scale infrastructure and civil engineering projects.

Energy and Power Generation

In the energy sector, carbon steel is essential for manufacturing pipelines, pressure vessels, boilers, and turbine components. Its ability to withstand high temperatures and pressures ensures safety and performance in oil, gas, and thermal power applications.

Automotive and Transportation

The automotive and transportation industries rely on carbon steel for chassis parts, axles, gears, and body structures. Its excellent machinability and strength-to-weight ratio contribute to improved vehicle performance, safety, and fuel efficiency.

Manufacturing and Machinery

Carbon steel is widely utilized in industrial machinery, equipment fabrication, and tool production. Its toughness and wear resistance make it suitable for machine parts, cutting tools, and industrial hardware operating under demanding conditions.

Oil, Gas, and Petrochemical

Within oil, gas, and petrochemical industries, carbon steel is a preferred material for drilling pipes, storage tanks, refinery equipment, and processing facilities. It offers excellent weldability and corrosion resistance, ensuring long service life in harsh environments.

Precision Surface and Heat Treatment for Carbon Steel

01/

Annealing
Annealing involves heating the steel to a controlled temperature and then cooling it slowly. This process improves ductility, refines grain structure, and relieves internal stress, making the material easier to form and machine.

02/

Normalizing
Normalizing enhances uniformity and strength by heating the steel above its critical point and allowing it to air cool. It refines the microstructure and restores mechanical balance after forging or rolling.

03/

Quenching
In quenching, the steel is rapidly cooled from high temperatures in water or oil to increase hardness and strength. This process ensures excellent wear resistance for demanding industrial applications.

04/

Tempering
Tempering follows quenching to reduce brittleness and enhance toughness. The steel is reheated to a moderate temperature and slowly cooled to achieve optimal strength and flexibility.

05/

Surface Heat Treatment
Surface heat treatment methods—such as carburizing, nitriding, and induction hardening—improve surface hardness and wear resistance while maintaining a tough core structure.

06/

Cold Treatment
Cold treatment involves cooling the steel to sub-zero temperatures to further stabilize structure, enhance hardness, and improve dimensional accuracy after quenching.

Tailored Carbon Steel Solutions for Precise Performance

Standard Protection

Pipes are bundled with strong steel straps, wrapped in waterproof plastic, and fitted with end caps to prevent moisture and damage.

Surface Safety

Anti-rust oil or plastic film is applied for corrosion resistance, especially for sea or long-distance transport.

Customized Options

Packaging can be tailored with wooden cases, specific bundle sizes, or export markings according to customer requirements.

Our Factory

productcate-600-300

FAQ

Q: Is after-sales support provided?

A: Our team provides responsive after-sales service, including technical support and assistance, to guarantee customer satisfaction throughout the product lifecycle.

Q: What shipping methods are supported?

A: Multiple transport options are available, including sea freight, air freight, and land transportation, tailored to the client's destination and urgency.

Q: What is the minimum order quantity (MOQ)?

A: The MOQ varies depending on the carbon steel pipe specifications and customization. Typically, we accommodate both bulk orders and smaller trial quantities to support diverse customer needs.

Q: When to pwht carbon steel?

A: Carbon Steel and Low-Temperature Carbon Steel (LTCS) with a thickness of at least 0.75 inches (20MM) generally require PWHT. Low Alloy Steel's requirement for PWHT varies based on its chromium content and thickness.

Q: What is the purchasing process?

A: Our procurement process begins with a detailed inquiry where we assess your requirements, followed by a customized quotation. Once confirmed, we proceed with order confirmation, production scheduling, quality inspection, and timely delivery.

As one of the leading carbon steel manufacturers and suppliers in China, our company is specialized in providing the best products and service for customers around the world. Please rest assured to buy high quality carbon steel made in China here from our factory.