8615921639636



—— Product Center ——

Quality builds brands, technology strengthens capabilities,

global development is achieved together.



Location: HOME > PRODUCTS > Carbon steel > Carbon Steel Coil > Q235B Hot Rolled Non-Alloy Carbon Steel Coil

Q235B Hot Rolled Non-Alloy Carbon Steel Coil

Q235B is the most commonly used carbon structural steel under the national standard GB/T 700. It possesses moderate strength, excellent weldability and cold working properties, and offers high cost-effectiveness. It is widely used in building steel structures, machinery manufacturing, hardware processing, and general structural components. The product exhibits stable toughness, meeting room temperature impact requirements, and its performance is close to that of international grades such as S235JR and A36.



Contact Us

Name	Carbon Steel Coil
Cold-rolled coil	Thickness	0.2–6.0mm（Inventory：0.3/0.5/0.8/1.0/1.2/1.5/2.0mm）
	Width	914/1000/1250/1500mm,Or customize
	Inner diameter	508mm/610mm
	Regular weight of the roll	3–8T
Hot-rolled steel coil	Thickness	3.0-12.0mm（Inventory：3.0/4.0/8.0/10.0mm）
	Width×Length	1250–1500mm,Or customize
Tolerance	±0.02–±0.10 mm (varies with thickness)
Material Standards	AISI, ASTM, ASME, DIN, BS, EN, ISO, JIS, GOST, SAE, etc.
Edge condition:	Mill Edge: The original edge of the steel strip, with low cost
	Slit Edge: Cut neatly, with high dimensional accuracy
Delivery Time	within 5-10 days

Chemical composition(%)

Brand	C	Si	Mn	P ≤	S ≤
Q235B	≤0.20	≤0.35	0.30–0.70	0.045	0.045

Mechanical properties

Grade	Minimum Yield Strength ≥ MPa	Maximum Tensile Strength MPa	Post-Tensile Elongation ≥ %	Impact Test
Q235B	235	370–500	26	20℃, V-notch impact test

Product Performance Advantages

Moderate strength and balanced overall performance; yield strength of 235MPa, meeting the load-bearing requirements of most buildings, machinery, and steel structures, making it widely applicable.

Excellent weldability; low-carbon design, resistant to welding cracks, suitable for various welded structures, steel pipes, and steel structural components.

Excellent cold working performance; can be bent, punched, stamped, and rolled; not prone to cracking, highly adaptable to downstream processing.

Extremely high cost-effectiveness; high production volume, mature technology, and stable price, making it a "general-purpose steel" in the global engineering market.

High international recognition; close to European standard S235JR and American standard A36, easily understood and accepted by customers, facilitating benchmarking and pricing.

Guaranteed impact performance (Grade B); can undergo room temperature impact testing, suitable for structural components requiring toughness, making it more competitive in exports.

Our factory's advantages in producing Q235B series products:

Our factory's advantages in producing Q235B series products:

Controllable quality, meeting export standards: We strictly adhere to GB/T 700-2006 standards, providing complete original material certificates (MTCs) for each batch to ensure compliance with export quality inspection requirements and minimal batch-to-batch quality fluctuations.

Complete specifications, adapting to diverse foreign trade needs:We can produce various common export forms such as hot-rolled coils, medium and heavy plates, flat plates, flat bars, angle bars, channel bars, round bars, and welded pipes, allowing for direct production without secondary processing by customers.

Leveraging large-scale production and a stable supply chain system:While ensuring quality, we effectively reduce production costs, resulting in strong price competitiveness, especially suitable for overseas buyers with large-volume, long-term, and stable partnerships.

Extensive experience in steel export:We are familiar with export policies and customs procedures, and can assist customers in obtaining export licenses (if required) and provide complete customs documentation. We maintain ample stock, offer flexible production scheduling, and can quickly respond to foreign trade orders. We support full container load (FCL) and less than container load (LCL) shipments, accurately controlling delivery cycles to ensure on-time arrival of goods.

Application Scenarios Matched:

Construction / Bridges / Steel Structures: Q235B, A36, S235JR, SS400

Machinery / Vehicles / Pressure Vessels: Q355B, A572Gr.50, S355JR, SM490

Cold Rolled / Galvanized Steel Sheet / Stamped Parts: SPHC, DD11, SAE1008

Payment Methods

Flexible payment terms available: T/T and L/C. For new clients, 30% advance payment for production, balance against copy of B/L. L/C is acceptable for large & regular orders to secure both parties.

Previous:SAE1006 SAE1008 Cold Rolled Steel Coil

Next:S235JR Common Carbon Structural Steel Coil

Warehousing Management

Before each batch of steel leaves the factory, a complete process inspection is strictly carried out. From chemical composition, mechanical properties to dimensional tolerance and surface quality, each item is carefully checked to ensure compliance with national standards and export regulations. At the same time, the quantity, packaging and rust prevention treatment are also verified. An original factory warranty certificate is attached, guaranteeing the quality. Before shipment, inspection photos are provided. Any non-compliant items will not be released, and the quality is fully controllable throughout the process. This ensures your overseas purchasing is safe and worry-free.

All items are visually inspected before delivery. No cracks, deformation, rust, scratches or cutting marks are allowed; edges must be smooth. Only visually sound products will be shipped.

Thickness, width, length, wall thickness, outer diameter have been measured. Straightness, curvature, torsion, diagonal tolerance all meet the corresponding tolerance requirements.

Quality inspection includes: mechanical property tests (yield strength, tensile strength), elongation rate, impact energy, hardness testing, chemical composition testing, process performance testing, etc.

Inspection according to packaging requirements: secure binding, moisture-proof film, rust-proof paper, export fumigation/fumigation-free wooden crates, shipping marks, gross weight, net weight, etc.

We will provide full reception services to support the customers' on-site inspection of the goods.

Hot Rolling Production Line

Cold rolling precision processing

Cold drawing/cold rolling line

Hot Rolling Production Line

Hot rolling production line (producing hot-rolled coils/medium-thick plates, thickness 2–60mm)

Cold rolling precision processing

(Producing ultra-thin / high-precision / shiny panels, with thickness ranging from 0.1 to 3mm, for high-end products)
Cold drawing/cold rolling line

(High-precision cold-drawn round steel, square steel, hexagonal steel, and special-shaped bars)

Cold drawing/cold rolling line

(High-precision cold-drawn round steel, square steel, hexagonal steel, and special-shaped bars)

Warehousing Management

A ten-thousand-ton standardized warehouse with grid-based zoning and system positioning enables rapid material retrieval and reduces the time spent searching for materials.

Inbound inspection: Verify the physical items against the inbound form, inspect the appearance, dimensions, and labels. Once confirmed to be correct, the materials are entered into the ERP system and processed for storage.

Logistics and Global Delivery: Self-operated fleet + contracted logistics partners; expedited service available for urgent orders.

International Shipping: Supports FOB, CIF, DDP, and other trade terms, covering 100+ countries and regions.

Process: Booking → Trucking → Customs Declaration → Loading onto Ship/Aircraft → Bill of Lading Issuance → Document Delivery → Destination Port Customs Clearance (Optional) → Last-Mile Delivery.

Provides door-to-door one-stop logistics with full tracking to ensure safe and timely arrival of goods.

After-Sales Service and Traceability: Delivery receipts, logistics information, and quality inspection documents are sent to customers within 24 hours of shipment.

Established a full product lifecycle traceability system, allowing tracking of production, quality inspection, warehousing, and transportation records.

Follow-up inspection within 72 hours of arrival; rapid response and handling of quality issues; assistance in resolving customs clearance issues for foreign trade orders.

Packaging Method