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Help CenterQ235B/Q355B Hot Rolled Steel H Beam 200x200x8x12 mm With Mill Test Report for Welding
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Established in 2025, Hemaokang Steel (Shandong) Co., Ltd. is a growing export-oriented supplier from Liaocheng, Shandong, with an annual export value in the range of US$50 million to US$100 million. As a manufacturer-focused company, we understand that structural steel must satisfy strict strength, traceability, and weldability requirements. The Q235B/Q355B Hot Rolled Steel H Beam 200x200x8x12 mm is one of our core mill-direct products, delivered with a Mill Test Report to support welding-critical applications. Whether you are fabricating load-bearing frames, industrial platforms, or steel bridges, this H-beam offers the consistency and documentation your project needs.
Key Features
- Hot-rolled production: The H-beam is formed at high temperature, which refines the grain structure, improves toughness, and gives stable mechanical properties for welding and structural use.
- Two structural steel grades: Available in Q235B for economical general-purpose structures and Q355B for higher load-carrying capacity. The grade is clearly identified in the mill test report.
- Precise dimensions: 200x200x8x12 mm means a nominal height of 200 mm, flange width of 200 mm, web thickness of 8 mm, and flange thickness of 12 mm, matching common structural application needs.
- Mill Test Report included: Each supply batch can be accompanied by a mill test report showing chemical composition, yield strength, tensile strength, and elongation, making quality verification easier for buyers and end users.
- Good weldability: The hot-rolled structure and controlled chemical composition support conventional welding processes and help reduce the risk of weld cracking in shop fabrication.
Product Reference Parameters
| Parameter | Description |
|---|---|
| Grade | Q235B, Q355B |
| Product Type | Hot rolled steel H beam |
| Section Size | 200 x 200 x 8 x 12 mm (H x W x web x flange) |
| Web Thickness | 8 mm |
| Flange Thickness | 12 mm |
| Length | 6 m, 9 m, 12 m or customized |
| Surface | Bare, black, painted or hot-dip galvanized (optional) |
| Mill Test Report | Available with shipment |
| Welding Application | Suitable for welding and steel structure fabrication |
Benefits of Choosing This H-Beam
- High load-bearing capacity for columns, beams, and roof trusses.
- Convenient for welding, bolting, and conventional fabrication processes.
- Economical section weight with reliable section modulus for medium and heavy structures.
- Available with cut-to-length, drilling or other processing upon request.
- Documented material traceability through the mill test report.
Welding-Oriented Quality Assurance
Welding is one of the most common operations when using H-beams in structural steel fabrication. Plate thickness and carbon content directly influence welding parameters such as preheating, heat input, and cooling rate. The Q235B/Q355B H beam 200x200x8x12 mm is manufactured through hot rolling, which creates a dense internal structure and reduces residual stress compared with cold-formed sections in many applications. The supplied mill test report helps your welding engineer confirm the actual yield strength and tensile values before preparing a welding procedure specification (WPS). This is especially valuable for project specifications that require material verification before welding starts.
Dimensional Accuracy
Both the section height and flange width of this H-beam are 200 mm, giving a balanced profile for bending and compression. With an 8 mm web and 12 mm flange, the section provides good strength for building extensions, steel platforms, pipe racks, and equipment supports. The flange width enables effective bolt connections and stable support for secondary steelwork. Because this is a hot-rolled product, straightness, edge radius, and section uniformity are generally consistent with mill rolling tolerances, allowing predictably stable fits on site.
Q235B vs Q355B
Q235B is suitable for welding where moderate strength is sufficient and economy is important. Q355B offers higher strength, allowing lighter sections to carry the same design load. If the engineer needs lower self-weight or greater load resistance, Q355B is a direct option. Both grades have good weldability under normal workshop conditions, and the final choice can be dictated by design calculation and local specification requirements. Reference yield strength is around 235 MPa for Q235B and around 355 MPa for Q355B, while actual values are shown in the mill test report.
Processing and Customization
Length can be cut according to detailed fabrication drawings, and surface preparation can include sandblasting, priming, painting, or hot-dip galvanizing. All such services are available upon request. The product can be packed in bundles with steel strips, wire, and protective materials for sea freight. If your structure requires fixed tolerances or particular edge preparation, we recommend sending your technical drawing so we can confirm suitability before production.
Company Assurance
Hemaokang Steel (Shandong) Co., Ltd. was established in 2025 in Liaocheng, Shandong, and operates with a dedicated export team of 51 to 100 employees. The company works under an ISO9001-certified quality management system and exports through Qingdao port to markets including North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and Central America. With an annual export value between US$50 million and US$100 million, our company has built a practical supply network for structural steel products. This Q235B/Q355B H-beam order will receive the same care: timely production, accurate documents, and complete shipping support.
We recognize that every welded structure begins with material integrity. By choosing our Q235B/Q355B hot rolled H-beam, you receive a product that is documented, measurable, and prepared for further fabrication. Contact us for the latest mill test report, pricing, and shipment schedule. We will respond with delivery options from Qingdao and support you from inquiry to final cargo release.
Frequently Asked Questions
Q: What does 200x200x8x12 mm mean?
A: It refers to the main nominal dimensions of the H-beam: 200 mm height, 200 mm flange width, 8 mm web thickness, and 12 mm flange thickness. This is a common profile for medium-duty steel structures.
Q: What is the difference between Q235B and Q355B?
A: Q235B has lower yield strength and is more economical, while Q355B provides higher strength for heavier loads. Both grades are weldable, and the mill test report will confirm the specific mechanical values for the supplied batch.
Q: Is a mill test report included?
A: Yes. The product is sold with a Mill Test Report, and it can be issued for each batch to show chemical composition, yield strength, tensile strength, and elongation. Let us know if you need the report before shipment.
Q: Can the H-beam be cut to custom lengths?
A: Yes. We can supply standard lengths of 6 m, 9 m, or 12 m, and we also offer cut-to-length service according to your drawings. Custom cutting is available upon request.
Q: What surface treatments are available?
A: The H-beam can be supplied in bare black form, with rust-proof oil, or with sandblasting, primer, painting, and hot-dip galvanizing. Because different markets have different requirements, surface treatment can be customized.
Q: How do you ensure quality before shipping?
A: Our export team works with production and inspection under an ISO9001-certified management system. We check dimensions, surface condition, and packing, and we can arrange third-party inspection when required.
Q: What is the shipping port and delivery time?
A: Shipment is arranged from Qingdao port. Delivery time depends on length, surface treatment, and quantity; we will confirm a clear schedule at the time of your inquiry.
Q: Is this H-beam suitable for welding?
A: Yes. It is designed for structural welding applications. With the mill test report and normal workshop welding procedures, the material provides stable performance for columns, beams, trusses, and support frames.
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