What is Q235B steel?
Q235B steel plate, an exceptional low carbon steel, stands out as a vital component under the national standard GB/T 700-2006 'Carbon Structural Steel.' As one of the most prevalent steel products in China, Q235B offers an economical solution for a multitude of applications that do not demand high-performance specifications.
The difference between Q235A and Q235B.
The distinction between Q235A and Q235B lies primarily in their carbon content, as categorized under the national standard GB700-88. Both being carbon steels, Q235A features a carbon content ranging from 0.14% to 0.22%, offering varying degrees of strength and flexibility to cater to diverse application needs.
In standard practice, steel mills affix identification plates to finished profiles prior to factory release. These plates enable users to identify whether the material is Q235A, Q235B, or an alternative grade. Notably, the design parameters include a pressure tolerance of P≤1.6MPa, operational temperatures between 0~350ºC, and a minimum steel plate thickness of 20mm.
The Application of Q235B Steel
Q235B steel is integral in realizing civil engineering projects. This steel grade is instrumental in constructing industrial and residential infrastructures, components of power transmission towers, essential parts of equipment, offshore platforms, oil and gas facilities, as well as automobile and pedestrian bridges, showcasing its versatile application in various structural scenarios.
Available For Stock:
Hot rolled steel (Q235B) selections include: Q235B, ss400, S235Jr, S355jr,Additional options include 1015, RSt37-2, USt37-2, St37-2, 40B, Fe360B, RSt360B, USt360B, Ст2пс, Ст2сп, Ст3пс, Ст3сп, ensuring a comprehensive range of materials to meet various engineering and construction needs.

15+ years of manufacturing experience
Shanghai Baori Steel Industries Co., Ltd
Renowned for our professional, efficient, and exemplary service
We act with sincerity and aim to connect the world through our endeavors
Our core expertise lies in the manufacturing, processing, and distribution of premium silicon steel products. Our extensive product range includes: hot dip aluminized steel coil/plate, stainless steel, galvanized steel, channel steel, rebar, pipes,and more.
With over 15 years of rich manufacturing experience and two decades of thriving in the domestic market, we boast a robust customized production capability. Our dedicated team comprises over 20 skilled professionals. Our state-of-the-art facility spans over 8,000 square meters, with an impressive annual capacity reaching 100,000 tons.
We proudly represent and are agents for industry giants like Baosteel, Wisco, Shougang Group, Shagang, Ansteel, and Tisco. With an unmatched supply chain and competitive pricing strategies, we cater to diverse quality and pricing demands. Our clientele spans globally, reaching markets in the Middle East, Africa, South America, Southeast Asia, Latin America, Europe, and beyond.



1. As a prominent manufacturer, we boast a substantial inventory to effortlessly fulfill your customization requirements. With our streamlined processes, we ensure rapid delivery.
2. Trustworthiness is our cornerstone; as a reliable manufacturer, we assure you of a consistent and stable product supply, competitive pricing, and comprehensive after-sales serviceto meet your satisfaction.
3. We implement rigorous and impeccable raw material selection standards along with advanced quality testing methods. Our exported products boast a 100% qualification rate, and we welcome any third-party inspection prior to shipment for ultimate peace of mind.
4. Our strategic proximity to the port of Shanghai guarantees exceedingly affordable freight rates and swift deliverytimes.
For products with a unit weight of less than 4 Tons
* We begin with one layer of specialized internal and external air anti-corrosion paper to ensure maximum protection.
* Each coil is secured with a pair of internal and external paper angle protectors, safeguarding the structure.
* A robust internal and external surrounding protection plate is included for added security.
* Finally, a pair of internal and external metal angle protection rings is applied for comprehensive safety.
For products with a unit weight equal to or exceeding 4 Tons
* We use a single layer of internal and external dedicated air anti-corrosion paper for superior defense.
* An external buffering plate is added, providing an additional layer of cushioning.
* Internal and external paper angle protection is applied, with a pair respectively for each, ensuring steadfast protection.
* A singular, sturdy internal and external surrounding protection plate ensures integrity throughout transit.
* Lastly, internal and external metal angle protection rings, applied as a pair, offer unwavering support and 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.