What is Q235B steel?
Q235B steel plate is a versatile low carbon steel, renowned for its wide-ranging applications and cost-effectiveness. According to the national standard GB/T 700-2006, categorized under 'Carbon Structural Steel', Q235B stands as one of China’s most prevalent steel products. Its affordability and adaptability make it suitable for numerous applications that do not demand high-performance characteristics, offering a reliable choice for a variety of industries.
The difference between Q235A and Q235B.
The difference between Q235A and Q235B: both are classified as carbon steels under the national standard GB700-88. The primary distinction lies in their carbon content levels. Q235A contains a carbon content ranging from 0.14-0.22%, which defines its specific properties and usability. Understanding these nuances is crucial for selecting the right material for your project demands.
Typically, steel mills ensure clear identification of finished profiles by marking them on identification plates before dispatch. This enables users to accurately determine whether the material is Q235A, Q235B, or others as indicated on the identification plate. Specifications include a design pressure of P≤1.6MPa, an operational temperature range of 0~350ºC, and a minimum steel plate thickness of 20mm.
The Application of Q235B Steel
Q235B steel grade finds extensive use in executing various civil engineering projects. It is a preferred choice for constructing robust steel structures within industrial and residential sectors. Its applications extend to power transmission towers, equipment components, offshore installations, oil and gas platforms, and automobile bridges, showcasing its versatility and strength in supporting dynamic infrastructural needs.
Available For Stock:
Hot rolled steel (Q235B): Available grades include Q235B, SS400, S235JR, and S355JR, offering a range of options to meet your structural and engineering requirements.Explore our diverse inventory selection with steel grades such as 1015, RSt37-2, USt37-2, St37-2, 40B, Fe360B, RSt360B, USt360B, Ст2пс, Ст2сп, Ст3пс, and Ст3сп. Our comprehensive stock is designed to fulfill various technical specifications and project needs.

With over 15 years of in-depth manufacturing expertise
Shanghai Baori Steel Industries Co., Ltd
Renowned for our professional, efficient, and exceptional service
We operate with sincerity, bridging connections across the globe
Our core business encompasses the manufacturing, processing, and distribution of premium silicon steel products. Our flagship offerings include high-quality hot dip aluminized steel coils/plates, robust stainless steel, galvanized steel, channel steel, rebar, pipes,and more.
Our company boasts over 15 years of solid manufacturing experience, and two decades of expertise in the domestic market. With our tailored production capabilities, we proudly employ over 20 professionals, and our expansive factory spans over 8,000 square meters. Our annual production capacity can reach up to 100,000 tons.
Furthermore, we are esteemed agents of industry leaders such as Baosteel, Wisco, Shougang Group, Shagang, Ansteel, and Tisco. With an unparalleled supply chain and competitive pricing, we cater to varying quality needs and price levels. Our clientele spans globally, reaching regions such as the Middle East, Africa, South America, Southeast Asia, Latin America, and Europe.



1. As manufacturers with extensive experience, we possess an impressive and vast inventory. This allows us to efficientlycater to your customization demands with remarkably swift delivery.
2. Renowned for our reliability, we ensure a consistent and dependable supply of products, all while maintaining a stable pricing structure and providing exceptional after-sales service.
3. Our rigorous raw material selection process and meticulous quality testing standards guarantee an impeccable 100% qualification rate for our exported products, and we are open to any third-party inspections prior to shipping.
4. Located in close proximity to the bustling Shanghai port, our logistics advantage translates to economical freight costs and expedited delivery times.
Unit weight < 4 Tons
* For superior protection against corrosion, each unit is wrapped with one layer of dedicated intermal and external air anti-corrosion paper.
* Enhanced protection with one pair of intemal and exteral paper angle guards for each unit.
* Each unit is fortified with a robust intemal and external surrounding protection plate, ensuring long-lasting durability.
* Each unit is secured with one pair of intemal and external metal angle protection rings for maximum stability and safety.
Unit weight ≥ 4 Tons
* To combat corrosion, each unit includes one layer of specially designed internal and external air anti-corrosion paper.
* Additional safeguard provided with one external buffering plate per unit.
* Each unit is equipped with one pair of internal and external paper angle protection, ensuring resilience and structural integrity.
* Strengthened with one tough internal and external surrounding protection plate per unit for enduring protection.
* One pair of internal and external metal angle protection rings are included with each unit to enhance security and support.
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.