Product reference photographs. Confirm grade, finish and supply specification with your enquiry.
Hot rolled plate & coil
Q235B hot rolled steel plate
Q235B hot rolled carbon steel plate for general fabrication, frames and construction components. Review thickness-specific properties and cut-size requirements below.
- Product form
- Plate
- Surface / finish
- Hot rolled
- Grade / standard
- Q235B · GB/T 700-2006
- Thickness
- 1.5–200 mm
- Width
- 600–4,000 mm
Plan your order
Material & processing
Plate thickness, width and length; cut size if required. Include the grade or describe your intended use if it is not yet selected.
Quantity & timing
Share your required tonnage and delivery date. Ask for stock availability, minimum order quantity and the dispatch schedule for your exact specification.
Packing & documents
Include destination, handling limits and required inspection documents so they can be reviewed with the material quotation.
Product details
For Q235B hot rolled steel plate, specify the full grade rather than Q235 alone. Match the ordered thickness and delivery condition to the relevant specification table, then include plate size, cutting requirements and the quantity needed for each line item.
Q235B plate enquiries for general steel fabrication. Specify the applicable standard edition, dimensions, edge requirements and quantity.
This specification is available for enquiry. Supply scope, dimensions and lead time must be confirmed with our team before ordering.
Cutting & fabrication
Specify the final plate size and downstream cutting or welding process.
Thickness & flatness
Define nominal thickness and the tolerances your fabrication requires.
Material documentation
Match the requested material standard with the inspection document.
Typical application
Structural fabrication
Structural fabrication, equipment and general plate work.
Explore applicationsProduct specifications
| Product form | Plate |
|---|---|
| Grade / standard | Q235B · GB/T 700-2006 |
| Thickness | 1.5–200 mm |
| Width | 600–4,000 mm |
| Manufacturing process | Hot rolled |
| Surface | As-rolled steel surface with oxide scale |
| Cut length | 1,000–12,000 mm; custom cut lengths by agreement |
| Dimensional tolerances | To the agreed grade, standard and order specification |
| Order quantity & availability | Confirmed for the selected specification in the quotation |
| Edge condition | Mill edge or trimmed edge, confirmed with the order |
| Inspection document | Request heat / coil identification and material test results |
| Packaging | Moisture protection, steel strapping and agreed edge protection |
| Dispatch documents | Packing list and product identification matched to the order |
| Delivery condition | As rolled; normalized or other grade-permitted condition when specified |
Dimensions and finishes depend on the selected grade and processing route; not every size and finish combination is available. The technical tables describe the stated grades and test conditions. Your quotation should identify the exact supply specification and applicable standard.
Q235B — chemical composition (heat analysis)
| C max. % | Si max. % | Mn max. % | P max. % | S max. % |
|---|---|---|---|---|
| 0.20 | 0.35 | 1.40 | 0.045 | 0.045 |
GB/T 700-2006, as reproduced in the PolyU Chinese Steel Guide, Appendix C. Carbon up to 0.22% is permitted only by agreement with the purchaser.
Q235B — mechanical properties by plate thickness
| Thickness t (mm) | Yield ReH min. (MPa) | Tensile Rm (MPa) | Elongation A min. (%) |
|---|---|---|---|
| ≤16 | 235 | 370–500 | 26 |
| >16–40 | 225 | 370–500 | 26 |
| >40–60 | 215 | 370–500 | 25 |
| >60–100 | 215 | 370–500 | 24 |
| >100–150 | 195 | 350–500 | 22 |
| >150–200 | 185 | 350–500 | 21 |
GB/T 700-2006. For thickness over 100 mm, the lower tensile limit may be reduced by 20 MPa. For wide strip and plate cut from it, the tensile upper limit is not an acceptance requirement. Use the test piece and orientation required by the ordered standard.
Q235B — impact and delivery condition
| Item | Requirement |
|---|---|
| Quality class | B |
| Charpy V-notch test temperature | +20°C |
| Impact energy | 27 J minimum, standard test basis |
| Thin material exception | For thickness <25 mm, omission of impact testing requires the supplier guarantee and purchaser agreement allowed by the standard |
| Delivery | Hot rolled; controlled rolling or normalized delivery where specified in the order |
The impact requirement is specific to Q235B; do not substitute values from Q235A, Q235C or Q235D.
Q235B — 180° cold-bend requirements
| Thickness a (mm) | Longitudinal mandrel diameter d | Transverse mandrel diameter d |
|---|---|---|
| ≤60 | 1.0a | 1.5a |
| >60–100 | 2.0a | 2.5a |
| >100 | By agreement | By agreement |
a is specimen thickness; bend specimen width is 2a. Test requirements and sampling follow GB/T 700-2006.
Surface & processing requirements
Include the downstream process in your enquiry so that the material, dimensions and surface can be reviewed together.
| Cut-to-size requirements | Final length and width, cutting method and edge condition. |
|---|---|
| Forming / fabrication | Describe the downstream forming, pressing, profiling or fabrication operation. |
| Finishing requirements | State whether material will be painted, coated or otherwise finished after delivery. |
| Plate / sheet handling | Confirm lifting method, stack height and protection of edges and surfaces. |
Production & processing
Define the material and the downstream process together. Cutting, slitting or finishing requirements should form part of the order specification.
Material review
Grade, dimensions and surface requirements are checked against the enquiry.
Processing scope
Agree cutting, slitting or forming requirements and the finished product tolerances.
Order inspection
Define acceptance criteria, identification and the requested documentation.
Stock & warehouse
Warehouse photographs illustrate storage and handling. For a current stock check, send the grade, dimensions and tonnage; ask for the available quantity and order-specific material photographs before purchase.
Quality inspection & documentation
Agree the acceptance criteria and required documents before confirming your order.
- Material identificationGrade, standard and requested test documentation.
- Dimensions & surfaceThickness, width, finish and agreed tolerances.
- Order documentsProduct identification, packing list and inspection scope.
Packaging & shipment
Tell us how the material will be transported, unloaded and stored. Specify moisture protection, edge protection, package weight and destination with your enquiry.
| Protection | Moisture barrier, edge protection and surface protection as agreed. |
|---|---|
| Unit weight | Specify the coil or bundle weight for your unloading equipment. |
| Identification | Product, grade, dimensions and order reference on the agreed packing list. |
| Delivery | Confirm destination, transport method and delivery terms in the quotation. |
Material test reports & order documents
Use the document types below to define your quality requirements. Ask Alex or Anna which documents apply to the selected material; document type and inspection scope should be agreed before order confirmation.
| Material test report | Heat or coil number, ordered grade, chemical composition and mechanical test results. |
|---|---|
| Inspection document | Specify the required EN 10204 document type and inspection scope in the enquiry. |
| Conformity documents | Request an original copy showing the issuing body, holder, number, applicable scope and validity. |
Frequently asked questions
What should I specify when buying Q235B steel plate?
State Q235B and the applicable purchasing standard, thickness, width, length and quantity. Add surface condition, edge or cutting requirements and required material documents. For fabricated parts, provide the drawing revision as well as the material specification.
How should I compare Q235B plate prices?
Compare quotations for the same thickness, plate dimensions, delivery condition and processing scope. Check whether packing, inspection documents and transport terms are included; a price per tonne alone does not describe the same supply scope.
How are minimum order and lead time confirmed?
Send your grade, size, tonnage and required delivery date. Ask for separate confirmation of stock availability, any production or processing time, and the dispatch date. Transit time depends on destination and shipment terms; the agreed quotation should state the minimum quantity and schedule.
What documents should I request?
List the required material test report, inspection document type and any third-party inspection in your enquiry. Ask which documents apply to your selected material and agree their scope before ordering. A general company certificate does not replace the material test results for the supplied heat or coil.
Related products
Hot rolled steel plate
Flat plate for structural fabrication and industrial components. Specify the grade, thickness and cutting dimensions for your application.
View specifications
Hot rolled steel coil
Coiled hot rolled steel for further processing, forming and fabrication. Share your target grade, width, thickness and coil requirements.
View specifications
ASTM A36 hot rolled steel plate
Hot rolled structural plate enquiries to ASTM A36. Include thickness, cut size and the inspection documentation required by your…
View specifications