What is Q235 Steel? Standards, Hardness, Q235 Steel Price

Amidst the panorama of the modern construction industry, Q235 steel plays a pivotal role as a core building block. With its sturdy characteristics and diverse applications, this type of steel is not only essential material for infrastructure construction but also the top choice in various fields of daily life. In the context of an increasingly demanding and diverse world, understanding the features and applications of Q235 steel is extremely important. Let’s explore further with Stavian Metal about this material and its significance in both the industry and everyday life.

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With its sturdy characteristics and diverse applications, Q235 steel is an essential material for infrastructure construction.

What is Q235 Steel?

Q235 steel is a type of low-carbon steel, manufactured according to the GB/T700 standard of China. It is divided into four grades: Q235A, Q235B, Q235C, and Q235D. With a density of 7.85g/cm3, Q235 steel has a tensile strength ranging from 370 to 500 MPa and a compressive strength of 235 MPa (for steel bars or plates with a thickness of 16mm).

With an appropriate carbon content in Q235 steel, this type of steel often exhibits good overall performance and a good balance of strength, flexibility, and weldability. It is produced in various forms such as plates, round bars, square bars, flat bars, angles, channels, I-beams, and steel pipes, serving industries such as construction, bridges, ships, and vehicles.

Q235 steel is widely used in construction and engineering industries, from making steel bars for workshop structures and high-voltage transmission towers to use in boiler manufacturing, containers, and many other mechanical applications requiring stable operational performance.

LEARN MORE >>>What is 16mm steel?

Q235B Steel

Q235B steel is one of the variants of low-carbon Q235 steel, widely produced and used in the industry. The “B” designation in Q235B indicates that there is a certain change in the chemical composition of the material compared to ordinary Q235, especially in the content of elements such as Carbon, Manganese, Silicon, Phosphorus, and Sulfur.

Q235B steel typically possesses mechanical and chemical properties similar to ordinary Q235, including high strength, good tensile and bending properties, as well as resistance to wear and oxidation. With these properties, Q235B steel is commonly used in various applications, from infrastructure construction to the manufacturing of machinery and industrial equipment.

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Q235 steel is a type of low-carbon steel divided into four grades: A, B, C, D.

Characteristics of Q235 Steel

The characteristics of Q235 steel are determined by several important factors:

  • Moderate carbon content: Q235 steel has a stable carbon content, neither too high nor too low, which helps improve the flexibility and machinability of the material.
  • Compliance with quality standards: Q235 steel plates adhere to strict quality standards, including Chinese standards (PRC) and international standards such as JIS (Japan), ASTM (USA), DIN (Germany), and EN (Europe).
  • Diverse sizes: Q235 steel plates can be supplied in various sizes, from a width of 1510 mm to 2300 mm and a thickness from 1.5mm to 100mm, catering to various design requirements and applications.
  • Flexible length: Q235 steel plates can be supplied in lengths from 6m to 12m, facilitating convenient cutting and usage.
  • Diverse equivalent steel grades: Equivalent steel grades to Q235, such as SS400, CT3, and A36, aid in material selection and substitution.
  • Diverse chemical composition: In addition to carbon, Q235 steel also contains other elements such as manganese (Mn), phosphorus (P), sulfur (S), silicon (Si), and other elements, creating diverse mechanical and chemical properties.
  • Basic strength ensured: With a minimum tensile strength of 235 MPa and a minimum yield strength of 375 MPa, Q235 steel meets basic requirements for strength and flexibility in various applications.

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Q235 steel exhibits diverse characteristics.

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Specifications of Q235 Steel

Chemical composition

The main chemical elements of Q235 steel include:

  • Carbon (C)
  • Silicon (Si)
  • Manganese (Mn)
  • Phosphorus (P)
  • Sulfur (S)

Below is the chemical composition table of Q235 steel, providing a clearer understanding of the main elements:

Steel Grade Standard Steel Grade C % (≤) Si % (≤) Mn (≤) P (≤) S (≤)
Q235 Q235A 0.22 0.35 1.4 0.045 0.05
Q235B 0.2 0.35 1.4 0.045 0.045
Q235C 0.17 0.35 1.4 0.04 0.04
Q235D 0.17 0.35 1.4 0.035 0.035
Standard Steel Grade: A<B<C<D

Note that steel grade standards are typically classified in the order from A to D, with each grade having specific requirements for chemical composition and mechanical properties.

However, it is important to remember that the chemical composition of Q235 steel plate may vary depending on the standards and regulations of each country. Adhering to regulations and standards related to the chemical composition of steel is crucial to ensure the quality and consistency of the product.

Mechanical Properties

These mechanical properties include yield strength, tensile strength, and elongation, which are important factors in measuring the steel’s ability to withstand forces and deformation. However, the specific values of these properties may vary depending on production conditions and specific regulations of each country.

Steel Grade Yield Strength Tensile Strength Elongation %
Q235 235 Mpa 370-500 Mpa 26
Test Sample: Steel Plate Q235, (Mpa=N/mm2)

Specifications for Q235 Steel Plate

Q235 Steel Thickness (mm) Width (m) Length (m)
Q235A, Q235B,Q235C, Q235D 3 1.5 – 2 3 – 6 – 12
4 1.5 – 2 3 – 6 – 12
5 1.5 – 2 3 – 6 – 12
6 1.5 – 2 3 – 6 – 12
8 1.5 – 2 3 – 6 – 12
9 1.5 – 2 3 – 6 – 12
10 1.5 – 2 – 3 3 – 6 – 12
12 1.5 – 2 – 3 3 – 6 – 12
13 1.5 – 2 – 3 3 – 6 – 12
14 1.5 – 2 – 3 3 – 6 – 12
15 1.5 – 2 – 3 3 – 6 – 12
16 1.5 – 2 – 3 3 – 6 – 12
18 1.5 – 2 – 3 3 – 6 – 12
20 1.5 – 2 – 3 3 – 6 – 12
22 1.5 – 2 – 3 3 – 6 – 12
25 1.5 – 2 – 3 3 – 6 – 12
28 1.5 – 2 – 3 3 – 6 – 12
30 1.5 – 2 – 3 3 – 6 – 12
32 1.5 – 2 – 3 3 – 6 – 12
34 1.5 – 2 – 3 3 – 6 – 12
35 1.5 – 2 – 3 3 – 6 – 12
36 1.5 – 2 – 3 3 – 6 – 12
38 1.5 – 2 – 3 3 – 6 – 12
40 1.5 – 2 – 3 3 – 6 – 12
44 1.5 – 2 – 3 3 – 6 – 12
45 1.5 – 2 – 3 3 – 6 – 12
50 1.5 – 2 – 3 3 – 6 – 12
55 1.5 – 2 – 3 3 – 6 – 12
60 1.5 – 2 – 3 3 – 6 – 12
65 1.5 – 2 – 3 3 – 6 – 12
70 1.5 – 2 – 3 3 – 6 – 12
75 1.5 – 2 – 3 3 – 6 – 12
80 1.5 – 2 – 3 3 – 6 – 12
82 1.5 – 2 – 3 3 – 6 – 12
85 1.5 – 2 – 3 3 – 6 – 12
90 1.5 – 2 – 3 3 – 6 – 12
95 1.5 – 2 – 3 3 – 6 – 12
100 1.5 – 2 – 3 3 – 6 – 12
110 1.5 – 2 – 3 3 – 6 – 12
120 1.5 – 2 – 3 3 – 6 – 12
150 1.5 – 2 – 3 3 – 6 – 12
180 1.5 – 2 – 3 3 – 6 – 12
200 1.5 – 2 – 3 3 – 6 – 12

Prominent Advantages of Q235 Steel Plate

Q235 steel plate is highly regarded for its outstanding advantages:

  • Resistance to oxidation: Q235 steel demonstrates good resistance to oxidation, preventing rusting when exposed to harsh weather conditions such as moisture, rain, or environments containing oxidizing agents.
  • High strength: With a tensile strength ranging from 370 to 500 MPa, Q235 steel plate exhibits high strength, enabling it to withstand high pressure and loads in structural applications.
  • Environmental resistance: Q235 steel can withstand adverse effects of the environment such as acids, alkalis, and other corrosive factors, making it an ideal choice for outdoor applications and harsh environments.
  • Ease of fabrication: Q235 steel is easily fabricated and formed into complex shapes while maintaining stable mechanical properties, saving time and costs in the manufacturing and processing process. This makes it an ideal material for various applications in the industrial and construction sectors.

These advantages make Q235 steel plate a popular and preferred choice in many applications, from infrastructure to manufacturing and construction.

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Q235 steel has many outstanding advantages

Where to Buy Q235 Steel from a Reputable Source?

To purchase Q235 steel with high reliability and quality, Stavian Metal is a recommended and trustworthy source. Stavian Metal is an importer and distributor of Q235 steel plates, committed to providing standardized products without rust, yellowing, warping at reasonable and competitive Q235 steel prices.

Stavian Metal’s Q235 steel plate products are directly imported from large and reputable factories in China, Japan, South Korea, Thailand, Sweden, Malaysia, and many other countries. All products come with complete quality certificates from manufacturers and authorized agencies, ensuring peace of mind for customers regarding both quality and origin of the steel.

Additionally, Stavian Metal has a team of professional consultants ready to support and advise customers on products and services, ensuring that you receive the most attentive and professional service.

In the context of a rapidly developing industry and construction sector, making the right choice of materials is a crucial factor in the success of every project. At Stavian Metal, we are committed to providing customers with high-quality Q235 steel products, ensuring compliance with all technical and design requirements. We are proud to be your reliable partner and are ready to accompany you on the path to success and development.

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Stavian Industrial Metal Joint Stock Company

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  • Headquarters: No.508 Truong Chinh Street, Nga Tu So Ward, Dong Da District, Hanoi City
  • Hai Phong Branch: 6th Floor, Thanh Dat 1 Tower, No.3 Le Thanh Tong Street, May To Ward, Ngo Quyen District, Hai Phong City
  • Southern Branch: 12Ath Floor, Vincom Center, No.72 Le Thanh Ton, District 1, Ho Chi Minh City
  • Hotline: +84 2471001868 / +84975271499

Website: https://stavianmetal.com

Email: info@stavianmetal.com

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