Welcome to ALLLAND Steel Pipe Co., Ltd.
Welcome to ALLLAND Steel Pipe Co., Ltd.
ALLLAND Steel Pipe Supply
Welcome to ALLLAND Steel Pipe Manufacturing.AS/NZS 1163 C450 Steel Hollow Section is a high-strength cold-formed structural steel hollow section available in RHS, SHS and CHS profiles. Manufactured according to AS/NZS 1163 standards, C450 offers a minimum yield strength of 450 MPa, providing excellent load-bearing capacity and structural efficiency for mining, industrial, construction and infrastructure applications.
Alllandsteel is a steel pipe manufacturer based in China with 25 years of experience.
The facility spans 22,000 square meters, represents a RMB 700 million investment, and operates four production lines (JCOE, ERW, SMLS, SSAW) alongside five coating lines.
With an annual production capacity of 250,000 tons, the factory covers specifications ranging from Ø406 to Ø1524 and holds multiple international certifications (API/ASTM/EN/ISO/JIS). Focused on steel pipes, creating value for you!
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| Product Type | Outside Dimension Range | Wall Thickness |
| C450 RHS | 20 × 10 mm – 500 × 300 mm | 2.0–16 mm |
| C450 SHS | 20 × 20 mm – 500 × 500 mm | 2.0–16 mm |
| C450 CHS | 21.3–508 mm OD | 2.0–16 mm |
Typical requirements are as follows:
| Element | Maximum (%) |
| Carbon (C) | ≤ 0.20 |
| Silicon (Si) | ≤ 0.45 |
| Manganese (Mn) | ≤ 1.70 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.030 |
| Carbon Equivalent (CE) | ≤ 0.43 |
C450 typically employs a low-carbon micro-alloyed design, utilizing elements such as Mn, Nb, V, and Ti to enhance strength while maintaining good weldability.
| Property | C450 Requirement |
|---|---|
| Minimum Yield Strength | ≥ 450 MPa |
| Minimum Tensile Strength | ≥ 500 MPa |
| Elastic Modulus | 200,000 MPa |
| Density | 7,850 kg/m³ |
| Section Ratio | Minimum Elongation |
| ≤15 | 12% |
| 15–30 | 14% |
| ＞30 | 16% |
Elongation requirements for rectangular hollow sections (RHS) vary depending on the width-to-thickness ratio (w/t, d/t).
The key advantage of AS/NZS 1163 C450 steel hollow sections is that they allow for reduced steel weight and improved structural efficiency while meeting structural strength requirements.
| Industry | Applications | Recommended Section | Key Performance Requirements |
| Mining & Resources | Conveyor systems, processing plants, equipment platforms | RHS / SHS | High strength, fatigue resistance, corrosion protection |
| Construction | Steel buildings, columns, beams, trusses | RHS / SHS / CHS | Load-bearing capacity, dimensional accuracy |
| Infrastructure | Bridges, transport facilities, public structures | CHS / RHS | Structural stability, durability |
| Industrial Manufacturing | Factory frames, machinery supports, pipe racks | RHS / SHS | Weldability, fabrication performance |
| Energy Projects | Power plants, support structures, industrial frames | CHS / RHS | Long service life, reliable performance |
| Heavy Fabrication | Custom steel structures and fabricated components | RHS / SHS / CHS | Custom dimensions, consistent quality |
ALLLAND supplies AS/NZS 1163 C450 steel hollow sections for mining, industrial, construction, and infrastructure projects. With advanced manufacturing capabilities and strict quality control, we provide customized solutions with reliable performance and on-time delivery.
| Standard | Coating |
| HDG | ≥70 μm (typical) |
| Heavy Duty | Customized |
| Grade | Yield Strength | Tensile Strength | Application |
|---|---|---|---|
| C250 | ≥250 MPa | ≥320 MPa | General structures, light-duty frames |
| C350 | ≥350 MPa | ≥430 MPa | Building structures, industrial frameworks |
| C450 | ≥450 MPa | ≥500 MPa | High-strength load-bearing structures |
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