Q345 Steel Suppliers and Manufacturer

Huaxiao Metal is a renowned name in the metal manufacturing and export industry, boasting over a decade of expertise and excellence. As premier Q345 steel suppliers & manufacturers, we specialize in providing high-quality Q345 carbon steel products to meet diverse industrial needs worldwide.

With a commitment to precision engineering and stringent quality standards, we offer an extensive range of Q345 steel products, including plates, sheets, bars, and structural sections. Our advanced manufacturing facilities and skilled workforce ensure that every product adheres to the highest industry specifications, delivering superior strength, durability, and performance.

Q345 Steel Available Products

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  • Round Bar
  • Flat Bar
  • Square Bar
  • Hexagon Bar
  • Plate
  • Coil
  • Tube
  • and More

Please send us specific inquiry details, we will quote for you within 24 hours!

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Table of Contents

Q345 Steel Data Sheet

Q345 Carbon Steel Chemical Composition

Steel StandardSteel GradeChemical Composition
C≤MnSi≤P≤S≤VNbTiAl≥
Q345A0.201.00~1.600.550.0450.0450.02~0.150.015~0.0600.20
B0.201.00~1.600.550.0400.0400.02~0.150.015~0.0600.20
C0.201.00~1.600.550.0350.0350.02~0.150.015~0.0600.200.015
D0.201.00~1.600.550.0300.0300.02~0.150.015~0.0600.200.015
E0.201.00~1.600.550.0250.0250.02~0.150.015~0.0600.200.015

Q345 Carbon Steel Physical Properties

Physical PropertiesMetricUS/Imperial
Density7.80 g/cc0.282 lb/in³

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Q345 Steel Mechanical Properties

Steel StandardSteel GradeYield Strength MpaTensile Strength MapElongation %
Q345A345470~63021
B345470~63021
C345470~63022
D345470~63022
E345470~63022

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Q345 Steel Equivalent Standard(ASTM/EN/JIS)

Steel for boiler and other pressure vesselsGB 713-2008
ASTM A537-08
JIS G3115
Q245R (20g/20R); Q345R (16Mng/16MnR)
Class 1/2/3
SPV235; SPV315; SPV355
High strength low alloy structural steelGB/T 1591-2008
EN 10028-3-2003
EN 10025-2004
ASTM A572-07
ASTM A588-05
Q345 (A/B/C/D/E); Q390; Q420
P355N
S420N
Grade 50; Grade 60
Grade A; Grade B

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Advantages of Q345 Carbon Steel

Q345 carbon steel is a widely used in various industries due to its advantageous properties. Here are some of the key advantages of Q345 carbon steel:

  1. High Strength: Q345 carbon steel offers high tensile strength, making it suitable for applications where structural integrity and load-bearing capacity are crucial. Its yield strength is typically higher than that of similar carbon steels, such as Q235.

  2. Good Weldability: Q345 carbon steel exhibits good weldability, allowing for ease of fabrication and assembly. This property makes it suitable for welded structures and components, reducing manufacturing complexities and costs.

  3. Versatility: Q345 carbon steel is versatile and can be utilized in a wide range of applications, including construction, automotive, machinery, and manufacturing industries. Its adaptability to various fabrication processes and environments enhances its utility in diverse settings.

  4. Corrosion Resistance: While not as corrosion-resistant as stainless steel or some other alloyed steel, Q345 carbon steel still offers adequate resistance to atmospheric corrosion and mild environments. Proper coating or surface treatment can further enhance its corrosion resistance for specific applications.

  5. Cost-Effectiveness: Q345 carbon steel provides a cost-effective solution for many engineering applications. Its availability, coupled with its favorable mechanical properties, makes it an economical choice for structural components, machinery parts, and infrastructure projects.

  6. Good Ductility and Toughness: Q345 carbon steel exhibits good ductility and toughness, allowing it to withstand impact loading and deformation without failure. This property is particularly advantageous in applications where dynamic loads or sudden shocks are anticipated.

  7. Excellent Formability: Q345 carbon steel can be easily formed into various shapes and sizes, making it suitable for a wide range of manufacturing processes, including bending, rolling, stamping, and forging. Its formability facilitates the production of complex components with tight tolerances.

  8. Availability: Q345 carbon steel is readily available in various forms, including plates, sheets, bars, and structural sections, making it convenient for manufacturers to source and utilize in their operations.

Overall, the high strength, good weldability, versatility, and cost-effectiveness makes Q345 carbon steel a preferred choice for many industrial applications requiring robust and reliable materials. However, it’s essential to consider specific requirements and environmental conditions when selecting materials to ensure optimal performance and longevity.

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Application Q345 Carbon Steel

Huaxiao Metal is one of the outstanding Q345 steel suppliers in China. Many customers purchase q345 steel for applications in the following ranges:

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  1. Construction: Q345 carbon steel is extensively used in the construction industry for structural components such as beams, columns, and framework due to its high strength and good weldability. It’s employed in building bridges, skyscrapers, stadiums, and various infrastructure projects.

  2. Manufacturing: Q345 steel is utilized in the manufacturing sector for fabricating machinery, equipment, and components requiring high strength and durability. It is often used in the production of heavy machinery, industrial boilers, pressure vessels, and agricultural implements.

  3. Automotive: In the automotive industry, Q345 carbon steel is employed in the manufacturing of chassis components, frames, and structural reinforcements due to its excellent strength-to-weight ratio and impact resistance. It contributes to enhancing vehicle safety and structural integrity.

  4. Shipbuilding: Q345 steel is suitable for shipbuilding applications, particularly in constructing hulls, decks, and other structural elements of ships and marine vessels. Its high strength and corrosion resistance make it ideal for withstanding harsh marine environments.

  5. Oil and Gas: Q345 carbon steel is utilized in the oil and gas industry for pipelines, drilling equipment, and storage tanks due to its robustness and resistance to corrosion in both onshore and offshore environments. It ensures the integrity and reliability of critical infrastructure in the energy sector.

  6. Railway Infrastructure: Q345 steel is used in the railway sector for manufacturing tracks, bridges, and rolling stock components due to its high load-bearing capacity and durability. It contributes to the safety and efficiency of railway transportation systems.

  7. Power Generation: Q345 carbon steel is employed in power generation plants for fabricating structural supports, turbine components, and boiler assemblies due to its strength, weldability, and heat resistance. It plays a vital role in ensuring the reliability and efficiency of power generation facilities.

  8. General Fabrication: Q345 steel is widely used in various general fabrication applications, including construction equipment, storage tanks, platforms, and structural frames. Its versatility and ease of fabrication make it a preferred choice for diverse manufacturing processes.

Overall, the diverse applications of Q345 carbon steel stem from its exceptional mechanical properties, including high strength, good weldability, versatility, and cost-effectiveness, making it a staple material in many industrial sectors.

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Contact Us For China Q345 Carbon Steel Prices

Whether you’re in construction, automotive, machinery, or any other industry requiring Q345 steel, Huaxiao Metal is your trusted partner for premium products and exceptional service. Contact us today to discuss your requirements and discover how we can fulfill your Q345 steel needs efficiently and affordably.

Huaxiao Metal Products

As a global steel supplier and manufacturer, Huaxiao offers a wide range of steel products for all your needs. Explore some of our most popular steel products.

Stainless Steel

Stainless Steel Sheet

Stainless Steel Coil

Stainless Steel Strip

Stainless Steel Foil

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Stainless Steel Bar

Stainless Steel Tube

Decorative Stainless Steel

Carbon Steel

Carbon Steel Sheet

Carbon Steel Coil

Carbon Steel Strip

Carbon Steel Wire

Carbon Steel Bar

Carbon Steel Tube

Coated Carbon Steel

Aluminum Metal

Aluminum Sheet

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Aluminum Strip

Aluminum Foil

Aluminum Wire

Aluminum Bar

Aluminum Tube