Carbon Steel I-Beam
Product Overview
Carbon steel I-beam (also called H-beam, universal beam, or rolled steel joist) is the primary load-bearing structural section in steel-framed buildings, bridges, industrial platforms, and heavy machinery. Its distinctive “I” cross-section — with two parallel flanges connected by a vertical web — provides optimal bending resistance per kilogram of steel, making I-beams the most structurally efficient hot-rolled section available.
Huaxia-Steel supplies carbon steel I-beams in heights from 100mm to 900mm, conforming to IPE (European), IPN (European tapered flange), HE (European wide flange), ASTM A6 (American Standard), and JIS G3192 (Japanese) profile standards. All beams are produced from fully killed, fine-grain carbon steel with complete mill certification.
Standard I-Beam Sizes and Section Properties
IPE Series (European Parallel Flange I-Beam)
| Profile | Height (mm) | Flange Width (mm) | Web (mm) | Flange (mm) | Weight (kg/m) |
|---|---|---|---|---|---|
| IPE 100 | 100 | 55 | 4.1 | 5.7 | 8.1 |
| IPE 160 | 160 | 82 | 5.0 | 7.4 | 15.8 |
| IPE 200 | 200 | 100 | 5.6 | 8.5 | 22.4 |
| IPE 270 | 270 | 135 | 6.6 | 10.2 | 36.1 |
| IPE 300 | 300 | 150 | 7.1 | 10.7 | 42.2 |
| IPE 400 | 400 | 180 | 8.6 | 13.5 | 66.3 |
| IPE 500 | 500 | 200 | 10.2 | 16.0 | 90.7 |
| IPE 600 | 600 | 220 | 12.0 | 19.0 | 122.0 |
HE Series (European Wide Flange Beam)
| Profile | Height (mm) | Flange Width (mm) | Web (mm) | Flange (mm) | Weight (kg/m) |
|---|---|---|---|---|---|
| HE 100 B | 100 | 100 | 6.0 | 10.0 | 20.4 |
| HE 160 B | 160 | 160 | 8.0 | 13.0 | 42.6 |
| HE 200 B | 200 | 200 | 9.0 | 15.0 | 61.3 |
| HE 260 B | 260 | 260 | 10.0 | 17.5 | 93.0 |
| HE 300 B | 300 | 300 | 11.0 | 19.0 | 117.0 |
| HE 400 B | 400 | 300 | 13.5 | 24.0 | 155.0 |
Custom profiles (non-standard flange widths or web thicknesses) can be produced for orders above 300 tons.
Available Carbon Steel Grades
| Standard | Grade | Yield (MPa) | Tensile (MPa) | Impact Test |
|---|---|---|---|---|
| EN 10025-2 | S235JR | 235 | 360–510 | 27J @ +20°C |
| EN 10025-2 | S275JR/J0/J2 | 275 | 410–560 | 27J @ +20/0/-20°C |
| EN 10025-2 | S355J0/J2/K2 | 355 | 470–630 | 27J/40J @ 0/-20°C |
| ASTM A36/A572 | A36 / Gr.50 | 250/345 | 400–550/450 | Per ASTM A673 |
| JIS G3101 | SS400 | 245 | 400–510 | — |
| JIS G3106 | SM400A/B/C | 245 | 400–510 | 27J @ 0/20°C |
| GB/T 1591 | Q345B/C/D | 345 | 470–630 | 34J @ +20/0/-20°C |
Manufacturing Process and Dimensional Tolerances
Carbon steel I-beams are produced on specialized section mills using grooved rolls that shape the beam profile from a continuously cast beam blank or bloom. The process involves:
- Reheating: Beam blank heated to 1,200–1,250°C in walking-beam furnace
- Breakdown rolling: Rough shaping through reversing breakdown mill
- Intermediate rolling: Progressive section reduction through tandem stands
- Finish rolling: Final pass achieving exact profile dimensions at 850–900°C
- Hot saw cutting: Cut to ordered length while still hot
- Cooling: Controlled air cooling on roller table cooling bed
- Straightening: Roller straightening (7–11 rolls) for camber and sweep control
Tolerances per EN 10034: Height ±2.0mm for sections ≤180mm, ±3.0mm for 180–400mm. Flange width ±2.0mm. Web thickness ±1.0mm for sections ≤220mm. Camber: 0.15% of length maximum.
Common Applications
- Building construction: Primary beams, columns, roof trusses, mezzanine floors
- Bridge engineering: Main girders, cross beams, bracing members
- Industrial structures: Crane runway beams, equipment support frames, pipe racks
- Shipbuilding: Hull stiffeners, deck beams, bulkhead framing
- Mining infrastructure: Headframes, conveyor galleries, crusher support structures
- Offshore structures: Module support frames, access platform beams
- Warehouse and logistics: Racking uprights, dock leveler frames, monorail beams
Quality Assurance
Each shipment of I-beams from Huaxia-Steel includes comprehensive quality documentation:
- EN 10204 Type 3.1 Inspection Certificate with full ladle and product analysis
- Tensile test results (yield, UTS, elongation) per applicable standard
- Charpy V-notch impact test results at specified temperature (for J0, J2, K2 grades)
- Dimensional conformance report (height, flange width, web/flange thickness, straightness)
- Ultrasonic testing per EN 10160 or ASTM A898 where specified for critical applications
- CE marking and Declaration of Performance (for EU-market products)
Packaging and Shipping
I-beams are bundled by profile and length in compact stacks. For single-size orders, beams are nested to maximize space efficiency in containers or vessel holds. Packaging details:
- Bundle straps: Minimum 4 steel straps per bundle (6 for lengths >12m)
- Edge protection: Steel corner protectors under straps to prevent surface damage
- Dunnage: Timber spacers between layers for fork lift or crane access
- Weather protection: VCI paper wrap or anti-rust coating for sea freight (optional)
- Marking: Each beam stamped with heat number, grade, profile designation, and mill logo
Transport: Containerized (20ft/40ft) for lengths up to 11.8m; breakbulk or flat-rack containers for lengths exceeding 12m. We handle all export documentation including certificate of origin, fumigation certificate, and bill of lading.
Request a Quotation
For carbon steel I-beam pricing and delivery information, contact our structural steel team. Please provide profile (IPE/HE/W-shape), size, grade, length, quantity, and destination port. Quotations delivered within 24 hours with complete technical datasheets.
