What is Q235B steel?
Q235B steel plate represents the epitome of durable, low carbon steel. Defined clearly in the esteemed national standard GB/T 700-2006 for 'Carbon Structural Steel,' Q235B stands out as a cornerstone of Chinese steel production. Renowned for its cost-effectiveness, this steel serves a myriad of applications where ultra-high performance is not of the essence, making it a versatile choice for numerous industrial needs.
The difference between Q235A and Q235B.
Exploring the nuances between Q235A and Q235B, it's essential to note that both fall under the category of carbon steels. According to the national standard GB700-88, the primary distinction lies in their carbon content. Specifically, Q235A boasts a carbon content range of 0.14-0.22%, influencing its attributes and usage scenarios.
Typically, steel mills diligently inscribe key details on identification plates affixed to finished profiles before they make their exit from the factory. By examining these plates, users can readily ascertain whether the material is Q235A, Q235B, or an alternative. Design parameters include a pressure threshold of P≤1.6MPa, operational temperature spanning from 0 to 350ºC, with steel plate thickness set at a minimum of 20mm.
The Application of Q235B Steel
The robust Q235B steel grade finds extensive application in civil engineering endeavors. It is the backbone of steel structures utilized in the construction of industrial and residential complexes, components of power transmission towers, crucial elements of equipment, as well as offshore structures, oil and gas platforms, automobile bridges, and a plethora of other structural entities.
Available For Stock:
Our hot rolled steel collection includes Q235B, alongside ss400, S235Jr, and S355jr.Additionally, we stock a diverse array of steel grades such as 1015, RSt37-2, USt37-2, St37-2, 40B, Fe360B, RSt360B, USt360B, Ст2пс, Ст2сп, Ст3пс, and Ст3сп to meet various engineering demands.

Boasting over 15 years of dedicated manufacturing experience, we bring expertise and innovation to every project.
Shanghai Baori Steel Industries Co., Ltd
Renowned for our professional, efficient, and top-notch service, we ensure customer satisfaction at every stage.
With sincerity at our core, we bridge connections across the globe, fostering long-lasting partnerships.
Our primary business expertise lies in the manufacturing, processing, and distribution of high-quality silicon steel products. Our premium offerings include: Hot dip aluminized steel coil/plate, a variety of stainless steel options, durable galvanized steel, robust channel steel, reliable rebar, versatile pipe products,and more, tailored to meet diverse industrial needs.
Our extensive experience spans over 15+ years in manufacturing alongside 20 years of thriving in the domestic market. We pride ourselves on our ability to offer customized production solutions. Our dedicated team of over 20 employees operates within our expansive 8,000 square meter facility, reaching an impressive annual production capacity of up to 100,000 Tons.
In addition to our own products, we serve as trusted agents for renowned steel giants such as Baosteel, Wisco, Shougang Group, Shagang, An Steel, and Tisco. With a strong supply chain and competitive pricing, we meet diverse quality and price requirements. Our esteemed clientele spans the globe, including the Middle East, Africa, South America, Southeast Asia, Latin America, and Europe, reflecting our global impact and reach.



1. As a dedicated manufacturer, we boast a substantial inventory that empowers usto fulfill your bespoke needs swiftly, ensuring prompt delivery.
2. As a trusted manufacturer, we guarantee a consistent and reliable product supply, with stable pricing and impeccable after-sales serviceto enhance your satisfaction.
3. Our rigorous raw material screening and quality testing standards ensure excellence. Our export products boast a 100% qualification rate , and we fully support any third-party inspection prior to shipping for your peace of mind.
4. Our strategic proximity to the port of Shanghai results in exceptionally low freight costs and expedited deliveryto your location.
Unit weight < 4 Tons
* Internal and external dedicated air anti-corrosion paper: 1 layer, ensuring your steel sheets are shielded against the elements and maintain their pristine condition.
* Internal and external paper angle protection: 1 pair respectively, providing robust edge protection to prevent damage during transit.
* Internal and external surrounding protection plate: 1 piece, offering comprehensive coverage and safeguarding the steel sheets from any potential harm.
* Internal and external metal angle protection ring: 1 pair respectively, reinforcing the corners with sturdy metal for enhanced security and stability.
Unit weight ≥ 4 Tons
* Internal and external dedicated air anti-corrosion paper: 1 layer, effectively protecting the steel sheets from corrosion and environmental factors.
* External buffering plate: 1 piece, providing an additional layer of cushioning to absorb shocks and impacts during handling and transport.
* Internal and external paper angle protection: 1 pair respectively, ensuring that the critical edges of the steel sheets remain intact and undamaged.
* Internal and external surrounding protection plate: 1 piece, delivering full-scale protection against potential external pressures.
* Internal and external metal angle protection ring: 1 pair, offering superior corner reinforcement with durable metal rings for maximum 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.