What is Q235B steel?
Q235B steel plate is a type of low carbon steel prominently defined by the national standard GB/T 700-2006 'Carbon Structural Steel'. As one of the most prevalent steel grades in China, Q235B is renowned for its cost-effectiveness, making it suitable for a wide range of products that do not demand high-performance specifications.
The difference between Q235A and Q235B.
The difference between Q235A and Q235B lies primarily in their carbon content, as outlined in the national standard GB700-88. Both are carbon steels, but Q235A contains a carbon content ranging from 0.14% to 0.22%, whereas Q235B has slightly different specifications.
Typically, steel mills label the finished profiles on identification plates before they leave the factory. This allows users to verify whether the product is Q235A, Q235B, or another type based on the identification plate. The design parameters include a pressure P≤1.6MPa, operational temperature range of 0~350ºC, and a plate thickness of no less than 20mm.
The Application of Q235B Steel
Steel grade Q235B is essential in realizing civil engineering solutions. It is the backbone of steel structures for both industrial and residential construction projects, including components for power transmission towers, equipment elements, offshore structures, oil and gas platforms, automobile bridges, and a myriad of other crucial infrastructural applications.
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..

With over 15 years of distinguished manufacturing expertise
Shanghai Baori Steel Industries Co., Ltd
Renowned for our professionalism, efficiency, and exceptional service
Conducting business with sincerity, building bridges across the globe
Our core business revolves around the manufacturing, processing, and distribution of superior quality silicon steel products. Our portfolio includes Hot dip aluminized steel coil/plate, stainless steel, galvanized steel, channel steel, rebar, pipes,and much more...
Boasting over 15 years of extensive manufacturing experience and a robust 20-year presence in the domestic market, we offer customized production capabilities. With a team of over 20 dedicated professionals and a sprawling facility spanning more than 8,000 square meters, our annual production capacity reaches an impressive 100,000 Tons.
We proudly serve as agents for Baosteel, Wisco, Shougang Group, Shagang, Ansteel, and Tisco among others. Our extensive supply chain allows us to offer highly competitive pricing and meet diverse quality and price level requirements. Our esteemed clientele spans the globe, including regions in the Middle East, Africa, South America, Southeast Asia, Latin America, and Europe.



1. As a reputable manufacturer, we possess a substantial inventory, ensuring that we canmeet your unique customization requirements with unparalleled speed and efficiency.
2. Being a trustworthy manufacturer, we assure you of a consistent and reliable supply of our products, coupled with stable pricing and exemplary after-sales servicethat caters to all your concerns effortlessly.
3. Our commitment to quality is unmatched, with rigorous raw material screening and testing protocols in place. Remarkably, the qualified rate of our exported products stands at 100%! Furthermore, we wholeheartedly welcome independent third-party inspections prior to shipping to guarantee your complete satisfaction.
4. Strategically located in proximity to the Shanghai port, we offer incredibly low freight costs and swift delivery timesto meet your urgent project timelines.
Unit Weight < 4 Tons
* Equipped with a specialized internal and external air anti-corrosion paper: 1 protective layer ensuring longevity.
* Precise internal and external paper angle protection: 1 pair each, safeguarding edges meticulously.
* Comprehensive internal and external surrounding protection plate: 1 piece, fortifying structure integrity.
* Advanced internal and external metal angle protection ring: 1 pair each, reinforcing durability.
Unit Weight ≥ 4 Tons
* Superior internal and external dedicated air anti-corrosion paper: 1 robust layer to prevent deterioration.
* External buffering plate: 1 piece, expertly designed to absorb impacts.
* Internal and external paper angle protection: 1 pair each, crafted for precise corner safety.
* Internal and external surrounding protection plate: 1 piece, providing all-round security.
* Internal and external metal angle protection ring: 1 pair, designed for enhanced strength and resilience.
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.