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AS/NZS 3679.1 Structural H Beam | Grade 300/350/350L0 | Royal Steel Group
AS/NZS 3679.1 is the core joint standard for hot-rolled structural steel bars and profiles in Australia and New Zealand, which clearly specifies the chemical composition, mechanical properties, processing accuracy and acceptance criteria of steel products. Our AS/NZS 3679.1 Grade 300 / 350 / 350L0 Structural H-Beams are hot-rolled profiles covered by this standard, with the typical "H" cross-section composed of web and flanges, featuring high bearing capacity, good rigidity, excellent weldability and processability. As a key load-bearing component, it is widely used in various structural engineering fields in Australia and New Zealand, and is the preferred choice for many landmark projects.
As a trusted partner for global steel structure projects, Royal Steel Group strictly controls every link from raw material selection to finished product delivery. We select high-quality raw materials that meet AS/NZS 3679.1 standards, adopt advanced production equipment and mature processing technology, and ensure that each batch of H-beams meets the standard requirements, providing reliable structural support for your engineering projects.
| Steel Grade | Minimum Yield Strength (MPa) | Tensile Strength (MPa) | Minimum Elongation (%) | Impact Toughness (J, -10℃) | Applicable Scenarios |
| AS/NZS 3679.1 Grade 300 | ≥300 | 430-580 | ≥18 | ≥27 (average) | Light-load structures, such as thin-walled building frames, cooling towers, small warehouses, etc. |
| AS/NZS 3679.1 Grade 350 | ≥350 | 490-630 | ≥19 | ≥27 (average) | Medium and heavy load structures, such as industrial plant main frames, bridge crossbeams, high-rise building load-bearing components, etc. |
| AS/NZS 3679.1 Grade 350L0 | ≥350 | 500-640 | ≥18 | ≥40 (average) | High-standard, harsh environment projects, such as petrochemical, marine engineering, low-temperature areas and seismic projects, with better low-temperature impact performance. |
| Compliance Category | Key Points |
| Standard Compliance | Grade 300/350/350L0 Structural H-Beams strictly comply with the AS/NZS 3679.1 standard, with comprehensive compliance and traceability. |
| Chemical Composition Control | Strictly control the content of elements such as C, Mn, Si, P, and S; P and S content does not exceed 0.035%, ensuring the stability, durability and weldability of the material. |
| Mechanical Performance Testing | Each batch of products undergoes strict tensile tests, impact tests and other inspections with complete test data records; all mechanical indicators such as yield strength and tensile strength fully meet standard requirements to ensure structural safety. |
| Dimensional Accuracy Control | Adopt advanced hot-rolling and precision cutting technology; the dimensional tolerances of indicators such as web thickness and flange width strictly comply with the standard, ensuring the consistency and interchangeability of product installation. |
| Traceability Guarantee | Establish a complete product traceability system; each batch of products is equipped with a formal test report, which can track the entire process from raw material incoming to finished product delivery. |
Excellent Mechanical Performance: The three grades of H-beams have different yield strengths, which can be flexibly selected according to the load requirements of the project. They can maintain structural safety and stability under heavy load, strong wind, earthquake and other extreme conditions, and realize lightweight design on the premise of ensuring bearing capacity, reducing project cost.
Superior Weldability & Processability: It has excellent weldability, which can adapt to various welding processes such as manual welding and automatic welding. The weld strength is consistent with the base metal, reducing welding defects and ensuring the overall structural stability, which can effectively shorten the construction period.
Strong Durability: Adopt professional surface treatment technology (such as hot-dip galvanizing, anti-corrosion painting), which can effectively improve corrosion resistance, adapt to coastal, high-humidity and other harsh environments in Australia and New Zealand, extend the service life of products and reduce later maintenance costs.
Full-Scenario Adaptation: It is widely used in bridges, industrial plants, warehouses, high-rise buildings, civil buildings and other fields, covering light-load, medium-heavy load and high-standard harsh environment projects, and can fully meet the needs of different engineering scenarios in Australia and New Zealand.
Customizable Service: According to the specific needs of the project, we can provide customized production of non-standard specifications, length cutting, surface treatment and other services to meet the personalized needs of different projects.
AS/NZS 3679.1 Grade 300 / 350 / 350L0 Structural H-Beam Sizes
| Designation | Mass (kg/m) | Depth (H) | Flange Width (B) | Web Thickness (tw) | Flange Thickness (tf) | Root Radius (r) |
| 150UB14.0 | 14 | 150 | 75 | 5 | 7 | 9 |
| 150UB18.0 | 18 | 155 | 75 | 6 | 9.5 | 9 |
| 200UB18.2 | 18.2 | 198 | 99 | 4.5 | 11 | 9 |
| 200UB22.3 | 22.3 | 201.6 | 133 | 5 | 7 | 9 |
| 200UB25.4 | 25.4 | 203.2 | 133 | 5.8 | 7.8 | 9 |
| 200UB29.8 | 29.8 | 207 | 134 | 6.3 | 9.6 | 9 |
| 250UB25.7 | 25.7 | 248 | 124 | 5 | 8 | 9 |
| 250UB31.4 | 31.4 | 251.6 | 146 | 6.1 | 8.6 | 9 |
| 250UB37.3 | 37.3 | 256.2 | 146 | 6.4 | 10.9 | 9 |
| 310UB32.0 | 32 | 300 | 150 | 5.5 | 8 | 9 |
| 310UB40.4 | 40.4 | 304 | 165 | 6.1 | 10.2 | 9 |
| 310UB46.2 | 46.2 | 307.2 | 166 | 6.7 | 11.8 | 9 |
| 360UB44.7 | 44.7 | 356 | 171 | 6.9 | 9.7 | 10.5 |
| 360UB50.7 | 50.7 | 355.6 | 171 | 7.3 | 11.5 | 10.5 |
| 360UB56.7 | 56.7 | 359 | 172 | 8 | 13 | 10.5 |
| 410UB53.7 | 53.7 | 403 | 178 | 7.6 | 10.9 | 12 |
| 410UB59.7 | 59.7 | 406.4 | 178 | 7.8 | 12.8 | 12 |
| 460UB67.1 | 67.1 | 453.8 | 190 | 8.5 | 12.7 | 12 |
| 460UB74.6 | 74.6 | 457.4 | 190 | 9.1 | 14.5 | 12 |
| 460UB82.1 | 82.1 | 460.4 | 191 | 9.9 | 16 | 12 |
| 530UB82.0 | 82 | 528.2 | 209 | 9.6 | 13.2 | 14 |
| 530UB92.4 | 92.4 | 533 | 209 | 10.2 | 15.6 | 14 |
| 610UB101 | 101 | 602 | 228 | 10.6 | 14.8 | 14 |
| 610UB113 | 113 | 607 | 228 | 11.2 | 17.3 | 14 |
| 610UB125 | 125 | 611.6 | 229 | 11.9 | 19.6 | 14 |
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| Section | Mass | Depth (d) | Flange Width (b) | Web Th. (t_w) | Flange Th. (t_f) | Root Radius (r) | Depth Tol. | Width Tol. | Web Tol. | Flange Tol. |
| 100UC14.8 | 14.8 | 97 | 99 | 5 | 7 | 10 | ±1.5 | ±1.5 | ±0.5 | ±0.7 |
| 150UC23.4 | 23.4 | 152.4 | 152 | 6.1 | 6.8 | 10 | ±2.0 | ±1.5 | ±0.6 | ±0.7 |
| 150UC30.0 | 30 | 157.6 | 153 | 6.6 | 9.4 | 10 | ±2.0 | ±1.5 | ±0.6 | ±0.7 |
| 150UC37.2 | 37.2 | 161.8 | 154 | 8.1 | 11.5 | 10 | ±2.0 | ±1.5 | ±0.7 | ±0.8 |
| 200UC46.2 | 46.2 | 203.4 | 203 | 7.3 | 11 | 12 | ±2.0 | ±2.0 | ±0.7 | ±0.8 |
| 200UC52.2 | 52.2 | 206.4 | 204 | 8 | 12.5 | 12 | ±2.0 | ±2.0 | ±0.7 | ±0.8 |
| 200UC59.5 | 59.5 | 209.8 | 205 | 9.3 | 14.2 | 12 | ±2.0 | ±2.0 | ±0.8 | ±0.9 |
| 250UC72.9 | 72.9 | 253.8 | 254 | 8.6 | 14.2 | 13 | ±2.5 | ±2.0 | ±0.8 | ±0.9 |
| 250UC89.5 | 89.5 | 259.6 | 256 | 10.5 | 17.3 | 13 | ±2.5 | ±2.0 | ±0.9 | ±1.0 |
| 310UC96.8 | 96.8 | 308 | 305 | 9.9 | 15.4 | 15 | ±2.5 | ±2.5 | ±0.9 | ±1.0 |
| 310UC118 | 118 | 314.6 | 307 | 11.9 | 18.7 | 15 | ±2.5 | ±2.5 | ±1.0 | ±1.1 |
| 310UC158 | 158 | 327.2 | 311 | 15.7 | 25 | 15 | ±2.5 | ±2.5 | ±1.1 | ±1.2 |
As core load-bearing members, our H-beams are widely used in key Australian and New Zealand engineering projects:
Bridge & transportation infrastructure: Used in bridge girders, piers and crossbeams, improving seismic and wind-resistant performance for new construction and reinforcement projects.
Industrial plants & warehouses: Applied in main frames and supporting structures for large-span, heavy-duty industrial and logistics facilities.
High-rise & civil buildings: Enhance structural stability and seismic performance, while meeting modern architectural design requirements.
Harsh environment projects: Grade 350L0 grade features outstanding low-temperature impact toughness and corrosion resistance, ideal for petrochemical, marine and low-temperature applications.
1) Branch Office - Spanish-speaking support, customs clearance assistance, etc.
2) Over 5,000 tons of stock in stock, with a wide variety of sizes
3) Inspected by authoritative organizations such as CCIC, SGS, BV, and TUV, with standard seaworthy packaging
Packaging:
Standard Export Packaging: Beams are securely bundled with steel straps and reinforced wooden supports to prevent movement or damage during transit.
Protective Measures: Optional waterproof covers or tarpaulins are applied to protect the surface from moisture, dust, and corrosion.
Labeling & Identification: Each bundle is labeled with material grade, dimensions, and project information for easy on-site identification.
Transportation:
Handling: Beams are loaded and unloaded using cranes or forklifts to ensure safety and prevent deformation.
Shipping Options: Suitable for sea, road, and rail transport. For long-distance or overseas shipping, anti-rust coatings and protective wrappings are recommended.
Delivery Assurance: Royal Steel Group ensures timely delivery with careful handling throughout the logistics process.
Stable cooperation with shipping companies such as MSK, MSC, COSCO efficiently logistics service chain, logistics service chain are we to your satisfaction.
We follow the standards of quality management system ISO9001 in all procedure, and have strict control from packaging material purchase to transport vehicle scheduling. This guarantees the H-beams from the factory all the way to the project site, helping you build on a solid foundation for a trouble free project!
Royal Steel Group is a professional China Steel Structure Factory integrating R&D, design, production and sales, with standardized production bases and advanced production equipment. We have long focused on the R&D and production of high-standard structural steel products, and have rich experience in serving the Australian and New Zealand markets. Our products have passed multiple international certifications, and we have established long-term cooperative relations with customers in more than 150 countries around the world.
We are committed to providing customers with high-quality, cost-effective steel structure products and one-stop customized solutions. For more information about AS/NZS 3679.1 Grade 300 / 350 / 350L0 Structural H-Beams, please visit our official website www.royalsteelgroup.com or contact our customer service team ↓. We look forward to cooperating with you to build high-quality engineering projects.
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