What is Q235B steel?
Q235B steel plate is a type of low carbon steel, clearly defined in the national standard GB/T 700-2006 "Carbon Structural Steel." Renowned for its affordability, Q235B stands as one of the most prevalent steel products in China. Its low cost makes it ideal for a variety of applications that do not demand high-performance characteristics.
The difference between Q235A and Q235B.
The difference between Q235A and Q235B lies in their carbon content, as specified in the national standard GB700-88. Both are carbon steels, but Q235A features a carbon content ranging from 0.14% to 0.22%. This subtle yet crucial variation influences their performance and application.
Typically, steel mills provide identification plates marking profiles before factory dispatch. Users can verify whether a material is Q235A, Q235B, or another specification based on these plates. Key parameters include design pressure P≤1.6MPa, operational temperature range of 0~350ºC, and a minimum steel plate thickness of 20mm.
The Application of Q235B Steel
Q235B steel grade is extensively employed in civil engineering projects. It underpins steel structures used in constructing industrial and residential buildings, components of power transmission towers, essential parts of equipment, as well as offshore platforms, oil and gas installations, and automobile bridges, among other structural 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..

Proudly boasting over 15 years of unmatched manufacturing expertise.
Shanghai Baori Steel Industries Co., Ltd.
We are committed to providing professional, efficient, and exceptional service.
We operate with sincerity and a global vision, connecting the world.
Our core business revolves around the manufacturing, processing, and distribution of premium silicon steel products. Our flagship offerings include Hot dip aluminized steel coils/plates, high-grade stainless steel, durable galvanized steel, robust channel steel, rebar, pipes,and more...
With a rich legacy spanning over 15+ years of manufacturing prowess and two decades in the domestic market. Our custom production capabilities are unmatched. With a dedicated team of over 20 professionals, our expansive facility covers more than 8,000 square meters, boasting an impressive annual capacity reaching up to 100,000 Tons.
We proudly represent leading giants such as Baosteel, Wisco, Shougang Group, Shagang, Ansteel, Tisco, and more. Our superior supply chain and competitive pricing cater to diverse quality and pricing needs. Our esteemed clientele stretches across the globe, including regions in the Middle East, Africa, South America, Southeast Asia, Latin America, Europe, and beyond.



1. As a manufacturer with an expansive inventory, we are perfectly positioned to cater to your customization needs,ensuring rapid delivery to meet your timelines.
2. As a highly reputable manufacturer, we assure you a consistent and reliable supply of products, with stable pricing and impeccable after-sales support,providing you peace of mind.
3. Our rigorous raw material screening and comprehensive quality testing guarantee excellence. Our export products boast a 100% qualified rate, and we welcome third-party inspections prior to shipping, ensuring total transparency.
4. Proximity to the port of Shanghai means we offer exceptionally competitive freight rates with expedited delivery,amplifying convenience and value.
Exquisite Packaging for Unit Weight < 4 Tons
* Premium internal and external dedicated air anti-corrosion paper: 1 robust layer
* Superior internal and external paper angle protection: precisely 1 pair each
* Durable internal and external surrounding protection plate: 1 solid piece
* Reinforced internal and external metal angle protection ring: a steadfast pair each
Enhanced Protection for Unit Weight ≥ 4 Tons
* Advanced internal and external dedicated air anti-corrosion paper: 1 reliable layer
* Sturdy external buffering plate: 1 dependable piece
* Enhanced internal and external paper angle protection: precisely 1 robust pair
* Strong internal and external surrounding protection plate: 1 steadfast piece
* Fortified internal and external metal angle protection ring: 1 durable pair
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.