What is Q235B steel?
Q235B steel plate, a prominent variant of low carbon steel, is defined by the national standard GB/T 700-2006 'Carbon Structural Steel'. Renowned as one of the most frequently utilized steel products within China, Q235B is celebrated for its affordability and versatility. This economically advantageous steel is perfect for projects that do not necessitate high-performance material.
The difference between Q235A and Q235B.
The difference between Q235A and Q235B lies in their classification as carbon steels. According to the national standard GB700-88, the primary distinction between these two materials is their carbon content. Specifically, Q235A encompasses a carbon content range of 0.14-0.22%, providing a fundamental differentiation from Q235B.
Typically, before leaving the factory, finished profiles are marked on identification plates by steel mills. This allows users to discern whether the material is Q235A, Q235B, or another classification. The design specifications include a pressure of P≤1.6MPa, an operating temperature range of 0~350ºC, and a steel plate thickness of at least 20mm.
The Application of Q235B Steel
Q235B steel grade is a key material in civil engineering, facilitating the creation of robust steel structures. Its applications span the construction of industrial and residential facilities, power transmission tower components, equipment parts, offshore structures, oil and gas platforms, automobile bridges, and more, showcasing its extensive utility in various structural developments.
Available For Stock:
Hot rolled steel (Q235B) is available in various grades: Q235B, SS400, S235Jr, S355jr,alongside 1015, RSt37-2, USt37-2, St37-2, 40B, Fe360B, RSt360B, USt360B, Ст2пс, Ст2сп, Ст3пс, Ст3сп, offering a wide range of specifications to meet diverse industry demands.

Over 15 Years of Expertise in Manufacturing
Shanghai Baori Steel Industries Co., Ltd
Unparalleled Professionalism, Efficiency, and Exceptional Service
Authenticity in Our Actions, Connecting the World
Our core business encompasses the manufacturing, processing, and distribution of high-quality silicon steel products. Our flagship offerings include: Hot Dip Aluminized Steel Coil/Plate, Stainless Steel, Galvanized Steel, Channel Steel, Rebar, Pipe,and more...
Boasting over 15 years of rich manufacturing experience and two decades of expertise in the domestic market. Our agile production capabilities are complemented by a dedicated team of over 20 employees, operating from a sprawling 8,000 square meter facility. With an annual production capacity reaching 100,000 Tons.
We proudly represent renowned industry leaders such as Baosteel, Wisco, Shougang Group, Shagang, and An Steel, Tisco among others. Our streamlined supply chain and competitive pricing cater to diverse quality and budgetary needs. With a global client base spanning the Middle East, Africa, South America, Southeast Asia, Latin America, Europe, and beyond, we are committed to excellence.



1. As a proud manufacturer, we boast a substantial inventory that enables us to efficiently cater to your customization needs,ensuring swift delivery every time.
2. As a reliable and trustworthy manufacturer, we guarantee a seamless and steady product supply, while offering unwaveringly stable prices and impeccable after-sales service.
3. Our stringent and comprehensive raw material screening standards, along with advanced quality testing methods, ensure that 100% of our exported products meet and exceed quality expectations . Furthermore, we welcome any third-party inspection prior to shipping to uphold our quality assurance promise.
4. Strategically located near the Shanghai port, we offer highly competitive freight costs and remarkably fast delivery services.
For unit weights under 4 tons, each component is meticulously packaged to ensure absolute safety and integrity. Our specialized packaging guarantees the highest level of protection.
* Utilizing a single layer of dedicated air anti-corrosion paper both internally and externally, safeguarding the product against moisture and corrosion.
* Equipped with internal and external paper angle protection, provided with a pair each, to maintain structural integrity during transit.
* A singular internal and external surrounding protection plate is installed to offer robust security against physical impacts.
* Each package comes with a pair of metal angle protection rings both internally and externally, reinforcing the corners against any potential damage.
For unit weights equal to or exceeding 4 tons, advanced protective measures are implemented to maintain the quality and condition of the materials throughout the shipping process.
* A meticulous layer of dedicated air anti-corrosion paper is applied internally and externally to prevent any form of rust or degradation.
* An external buffering plate is incorporated, providing an additional layer of defense to absorb shocks and impacts.
* A pair of internal and external paper angle protection is provided to ensure the edges remain unscathed and fully protected.
* With an internal and external surrounding protection plate, the item is shielded against harsh handling conditions.
* Two pairs of robust metal angle protection rings are utilized both internally and externally, ensuring comprehensive edge protection.
Q1: How many countries you already exported?
A1: We have already exported to several countries like America,Australia,South Africa,Pakistan, India,Japan,Russia,Saudi Arabia,Brazil,etc.
Q2: How long will it take to execute my order?
A2: Once we get your order,We will proceed ASAP.The production time within 7 days.
Q3 Can I get a sample for testing?
A3: Free samples.
Q4 Do you have inspection for the products before packing?
A4: 100% self-inspection for the products, we put the quality as our first priority.
Q5 Can I visit to your factory before the order?
A5: Sure, We take our customers seriously, welcome to visit our factory.