What is Q235B steel?
Q235B steel plate stands as a remarkable example of low carbon steel, meticulously defined by the national standard GB/T 700-2006, known as "Carbon Structural Steel." Renowned for its widespread use across China, Q235B is celebrated for its cost-effectiveness, making it an ideal choice for a wide range of applications that do not demand high-performance specifications.
The difference between Q235A and Q235B.
The difference between Q235A and Q235B lies in their classification as carbon steels under the national standard GB700-88, which primarily distinguishes the two based on the carbon content in the steel. Q235A features a carbon content ranging from 0.14-0.22%;
Typically, before dispatch from the factory, steel mills label the finished steel profiles on identification plates. These plates allow users to determine whether the material is Q235A, Q235B, or another type. The design specifications include a pressure P≤1.6MPa and an operational temperature between 0~350ºC, with a steel plate thickness of at least 20mm.
The Application of Q235B Steel
Q235B steel grade emerges as a preferred choice for civil engineering projects, playing a pivotal role in constructing a vast array of structures. It is utilized in crafting steel frameworks for both industrial and residential buildings, parts of power transmission towers, and integral components of equipment. Moreover, it is essential in the building of offshore structures, oil and gas platforms, automobile bridges, and numerous other robust constructions.
Available For Stock:
Hot rolled steel (Q235B): Q235B, SS400, S235JR, S355JR,1015, RSt37-2, USt37-2, St37-2, 40B, Fe360B, RSt360B, USt360B, Ст2пс, Ст2сп, Ст3пс, Ст3сп..

Over 15 Years of Manufacturing Excellence
Shanghai Baori Steel Industries Co., Ltd
Professional, Efficient, and Exceptional Service
Act with Sincerity, Connect the World
Our primary business sphere encompasses the manufacturing, processing, and distribution of premium silicon steel products. Our flagship product range includes Hot-dip aluminized steel coil/plate, stainless steel, galvanized steel, channel steel, rebar, pipe,and more...
With a wealth of over 15 years in manufacturing experience and two decades in the domestic market, we boast customizable production capabilities. With a dedicated team of more than 20 employees, our factory spans over 8,000 square meters and supports an impressive annual capacity of 100,000 Tons.
We proudly serve as agents for Baosteel, Wisco, Shougang Group, Shagang, Ansteel, and Tisco among others. Our robust supply chain and competitive pricing cater to diverse quality and budgetary needs. Today, our esteemed clientele spans globally, reaching markets in the Middle East, Africa, South America, Southeast Asia, Latin America, and Europe, and beyond.



1. As a leading manufacturer, we pride ourselves on possessing a vast inventory of high-grade materials. This ensures we seamlessly cater to your customization needs with unparalleled speed.
2. Rest assured in our reliability and trustworthiness, as we consistently offer a steady and reliable supply of products, competitive and stable pricing, alongside impeccable after-sales service that guarantees your satisfaction.
3. Our commitment to excellence is reflected in our rigorous raw material screening processes and comprehensive quality testing methods. Our products boast an impressive qualified rate of 100%, reinforcing our quality assurance. We welcome any third-party inspection prior to shipping to ensure utmost transparency and quality.
4. Strategically located near the bustling port of Shanghai, we offer remarkably affordable freight costs and exceptionally swift delivery times.
For units weighing less than 4 Tons
* A single layer of both internal and external dedicated air anti-corrosion paper ensures robust protection.
* Dual pairs of internal and external paper angle protection provide precise safeguarding at every corner.
* Each package includes a single internal and external surrounding protection plate for comprehensive coverage.
* A pair of internal and external metal angle protection rings are included for reinforced durability.
For units weighing 4 Tons or more
* A single layer of dedicated air anti-corrosion paper, applied both internally and externally, assures superior protection.
* Includes one external buffering plate to absorb impacts and maintain the integrity of the material.
* Equipped with a pair of internal and external paper angle protection for enhanced edge security.
* Comes with a single internal and external surrounding protection plate, ensuring complete encasement.
* A pair of internal and external metal angle protection rings are integrated for additional strength and security.
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.