H-Shaped Cross Section
See the flange width, section depth, web and true hot-rolled root radii.
Global Steel Supply & Processing
GB/T 1591-2018 Material Grade | GB/T 11263-2024 H-Sections
Send your H-beam designation, section dimensions, beam lengths, quantity and destination port. Receive factory pricing for your structural steel order.
Review H-beam specifications ↓Compare the material grade, hot-rolled H-section profile and dimensional acceptance conditions needed for your project RFQ.
| Steel grade | Q355B — High-Strength Low-Alloy Structural Steel |
| Material standard | GB/T 1591-2018 |
| Hot-rolled H-section standard | GB/T 11263-2024 |
| Product | Hot-rolled H beam / H-shaped structural section |
| Section designation | HN, HM, HW and exact H × B × web thickness × flange thickness dimensions as applicable |
| Nominal strength | Yield strength according to relevant product thickness under GB/T 1591 |
| Standard finish | As-rolled / mill finish |
| Ordered length | Specify beam length, number of pieces and requested end preparation |
| Section tolerance & mass | GB/T 11263-2024 and the agreed material schedule |
| Inspection documentation | Heat analysis, strength test records, section inspection and specified MTC |
Review common HN, HM and HW designations. The table gives theoretical mass for the listed exact sections; share your drawing to confirm grade availability.
| Designation | H×B×tw×tf (mm) | Nominal kg/m | |
|---|---|---|---|
| HN 200×100 | 200×100×5.5×8 | 20.9 | |
| HW 200×200 | 200×200×8×12 | 49.9 | |
| HN 250×125 | 250×125×6×9 | 29.0 | |
| HW 250×250 | 250×250×9×14 | 71.8 | |
| HN 300×150 | 300×150×6.5×9 | 36.7 | |
| HM 300×200 | 294×200×8×12 | 55.8 |
Reference shapes and section masses from GB/T 11263-2024 nominal dimension tables. Availability and unit-weight acceptance follow your confirmed section schedule and applicable standard.
Check H-shape geometry and the profile details needed for your steel structure fabrication.
See the flange width, section depth, web and true hot-rolled root radii.
Confirm section dimensions, surface condition and cut-end requirements for your order.
Q355B H sections serve load-bearing steelwork and fabricated structures where the design calls for the specified material and section geometry.
Beams and columns for factory buildings, warehouses and structural frames.
H-beam members for access platforms, mezzanines and fabrication projects.
Beams, columns and connection members specified for building steelwork.
Hot-rolled H-sections for industrial building frames and support members.
Load-bearing sections used with project-approved structural design and inspection.
Structural members for raised platforms, access structures and industrial supports.
H-beam members for machinery skids and fabricated support frames.
Section schedules for distributors supplying construction and fabrication buyers.
Company production scale, organized inventory operations and grade-based inspection help you plan repeat steel structure orders.
Your recurring procurement is supported by company-wide actual annual steel production of 8 million metric tons.
Manufacturing ↗Our combined steel inventory supports order planning. We check Q355B H-section availability against your exact dimensions.
Inventory ↗Share material grade, dimensional tolerance, material certificate and inspection details with your schedule.
Quality Control ↗Receive a quotation covering H-section sizes, lengths, quantities, loading requirements and destination port.
Contact Sales ↗Material test requirements depend on the applicable nominal section thickness and delivery condition. Your heat certificate records actual results.
| Nominal Thickness | Min. Yield | Tensile Strength |
|---|---|---|
| ≤16 mm | ≥ 355 MPa | 470–630 MPa |
| >16–40 mm | ≥ 345 MPa | 470–630 MPa |
| >40–63 mm | ≥ 335 MPa | 470–630 MPa |
| >63–80 mm | ≥ 325 MPa | 470–630 MPa |
| >80–100 mm | ≥ 315 MPa | 470–630 MPa |
Reference properties for hot-rolled Q355B; confirm test-piece location and applicable thickness for the ordered H-section. Grade B impact requirement: +20°C, with a reference full-size longitudinal Charpy requirement of 34 J where testing applies.
BAOSTEEL METAL operates with an actual annual steel production volume of 8 million metric tons across its steel product range. You can coordinate your section list, grade requirements, quantity and delivery plan with our sales team.
Share your H-section sizes, ordered lengths, total pieces and destination port. Our regular steel inventory reaches 1 million metric tons across all products; current Q355B section availability is checked against your schedule.
Choose a nominal H-section weight, enter each beam length and the number of pieces to estimate total theoretical shipment mass.
Nominal section weight × beam length × number of beams. Final shipment or invoice weight follows the agreed standard and delivery terms.
Confirm the required GB standards, dimensional tolerance, mechanical tests and heat traceability during quotation review. Inspection documents can be matched to your material schedule.
Include cut lists and drawings with your RFQ. Processing scope and tolerances are confirmed against your section sizes and project requirements.
Supply beam lengths and end conditions according to your fabrication schedule.
Discuss bolt-hole patterns, fabrication drawings and relevant tolerance requirements.
Include primer, blasting or coating requests where applicable to your order.
Send ordered lengths, total tonnage, loading preferences and destination port. We will confirm suitable beam stacking, fastening and export delivery arrangements for your purchase.
Compare sections and material grades using their own standards, dimensions and procurement specifications.
GB/T 1591-2018 specifies Q355B material requirements. GB/T 11263-2024 covers hot-rolled H-section dimensions, theoretical weight and shape tolerances.
GB/T 1591-2018 references at least 355 MPa for nominal material thickness through 16 mm. Thicker material follows the applicable thickness-specific values and test conditions.
Select the exact H-section unit mass in kg/m, multiply by ordered beam length in metres and the number of beams. Divide by 1,000 to estimate metric tons.
Include section dimensions, required length, quantity, GB standard edition, material inspection certificate and destination port. Attach fabrication drawings for cutting or drilling requests.
Send your required grade, dimensions, quantity and destination. Our team will review the inquiry.