What is Q235B steel?
Q235B steel plate is a type of low-carbon steel, distinctly defined under the national standard GB/T 700-2006 'Carbon Structural Steel'. As one of the most prevalent steel products across China, Q235B offers an economical solution for numerous applications that do not demand high-performance attributes. Its affordability makes it a staple choice in the industry.
The difference between Q235A and Q235B.
The key distinction between Q235A and Q235B lies in their carbon content, as detailed in the national standard GB700-88. Both are classified as carbon steels, yet Q235A possesses a carbon composition ranging from 0.14-0.22%, differentiating it from Q235B.
Typically, steel mills annotate the finished profiles on identification plates prior to dispatch. By examining these plates, users can ascertain whether the material is Q235A, Q235B, or another variant. The design parameters include a pressure P≤1.6MPa, applicable temperature range of 0~350ºC, and a steel plate thickness of >=20mm.
The Application of Q235B Steel
Steel grade Q235B plays a pivotal role in civil engineering, underpinning the construction of steel structures involved in both industrial and residential projects. This versatile material supports a variety of infrastructures, including components of power transmission towers, parts for equipment, offshore structures, oil and gas platforms, vehicle bridges, and more, reinforcing its indispensability in modern construction.
Available For Stock:
Hot rolled steel (Q235B) is available in various grades, including Q235B, ss400, S235Jr, and S355jr, offering a diverse range of options to meet varying project requirements.1015, RSt37-2, USt37-2, St37-2, 40B, Fe360B, RSt360B, USt360B, Ст2пс, Ст2сп, Ст3пс, Ст3сп, and more, ensuring a comprehensive selection of materials for your needs.

Boasting over 15 years of distinguished manufacturing expertise
Shanghai Baori Steel Industries Co., Ltd
Delivering professional, efficient, and exemplary service
Committed to sincerity, forging global connections
Our core business domain encompasses the manufacturing, processing, and distribution of premium silicon steel products. Our distinguished product lineup includes Hot dip aluminized steel coil/plate, stainless steel, galvanized steel, channel steel, rebar, pipe,and more...
Our extensive track record includes over 15+ years of manufacturing prowess and two decades in the domestic market. Our bespoke production capabilities are supported by a dedicated workforce exceeding 20 employees and a sprawling factory spanning over 8,000 square meters. Our annual production capacity reaches 100,000 Tons.
We proudly represent and are official agents for Baosteel, Wisco, Shougang Group, Shagang, Ansteel, Tisco and others. Our cutting-edge supply chain and competitive pricing structures are tailored to meet diverse quality and pricing expectations. Our global clientele extends across the Middle East, Africa, South America, Southeast Asia, Latin America, Europe, and beyond...



1. As a dedicated manufacturer, we boast a vast inventory, empowering us to fulfill your tailored requests with lightning-fast delivery.
2. As a reliable manufacturer, we ensure a consistent and stable supply of our high-quality products, maintain competitive pricing, and offer impeccable after-sales service.
3. We adhere to stringent raw material selection criteria and employ meticulous quality testing methods. This dedication results in an impressive 100% quality approval rate for our exports. Furthermore, we welcome any third-party inspection before shipment to assure your satisfaction.
4. Our proximity to the bustling Port of Shanghai enables us to offer remarkably affordable freight services and expedient delivery timelines.
Unit weight < 4 Tons: For coils under 4 tons, we provide a comprehensive range of protective measures to maintain the product's premium condition.
* Internal and external dedicated air anti-corrosion paper: 1 layer to guard against moisture and corrosion, preserving the core quality of your steel coils.
* Internal and external paper angle protection: 1 pair respectively, ensuring that the edges of each coil are shielded from potential impacts.
* Internal and external surrounding protection plate: 1 piece, providing an additional layer of defense against external pressures.
* Internal and external metal angle protection ring: 1 pair respectively, designed to fortify the structural integrity of the coil's corners.
Unit weight ≥ 4 Tons: For coils weighing 4 tons or more, our packaging solutions are tailored to offer enhanced protection and stability.
* Internal and external dedicated air anti-corrosion paper: 1 layer, effectively preventing oxidation and ensuring long-lasting durability.
* External buffering plate: 1 piece, strategically placed to absorb shocks and reduce potential impact damage.
* Internal and external paper angle protection: 1 pair respectively, safeguarding the vulnerable edges against rough handling.
* Internal and external surrounding protection plate: 1 piece, providing robust reinforcement against environmental stressors.
* Internal and external metal angle protection ring: 1 pair, meticulously designed to enhance corner stability and minimize deformation.
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.