GR350 Structural Steel Plate
Calibre Steel supply grade 350 steel plate from our strategically located sites in Perth, Melbourne and Sydney, to service projects Australia-wide.
Grade 350 structural steel plate is commonly used in construction and engineering projects and is a high-strength, hot-rolled steel plate product. 350 denotes the product’s minimum yield strength of 350 megapascals (MPa), which measures the stress it can withstand before deforming permanently.
Manufactured to meet relevant Australian Standards, including AS/NZS 3678:2016.
Key Features
Formability: Good – suitable for bending, cutting, and forming
Weldability: Excellent – easily welded with common welding methods
Hardness: Medium – balances strength and ductility
AS/NZS 3678-350
STRUCTURAL STEEL PLATE
Grade 350 steel is chosen for its high strength-to-weight ratio and durability in structural applications. Common uses include:
- Structural beams and columns
- Bridges and infrastructure
- Heavy equipment and machinery parts
- Mining and transport components
- Offshore and marine structures
Manufactured in Australia by BlueScope, the following GR350 steel plate is available from Calibre Steel (also known as XLERPLATE® steel).
| Grade | Thickness Range (mm) | Availability | Edge Condition | Impacted Testing Availability (L15, L20)* | |
|---|---|---|---|---|---|
| ASNZS 3678 Structural Grades | Grade 300 | 8 – 60 | By Enquiry Only | Trimmed / Untrimmed | 8mm – 40mm, By Enquiry |
| Grade 350 | 5 – 100 | Standard Sizes Outside Standard Sizes refer to Custom Range > 80mm By enquiry | Trimmed / Untrimmed | 8mm – 100mm |
General Description
A high strength structural steel product with 350MPa nominal yield strength.
Typical Uses
- General fabrication
- Structural members
- High-rise buildings
- Bridges
- Storage tanks
Key Benefits
- Guaranteed minimum strength levels
- Excellent weldability
- Good formability
Custom Range
The Calibre Steel custom range offers flexible order quantities and a wide variety of grade and size combinations ordered to specification on a standard mill lead-time. Optional mechanical testing options are available upon enquiry.
XLERPLATE® steel manufactured by BlueScope
Calibre Steel is proudly associated with and supplied by BlueScope as their high-quality steel plate products and service align with our own offerings. We offer all our customers full traceability and certification on all BlueScope steel plate products, providing peace of mind for all types of projects. Test Certificates and Green Star Compliance are made readily available for government and civil projects requiring quality assurance and environmental sustainability.
In addition, with BlueScope being local, technical support is only a phone call away. If there is an issue, a face-to-face visit will be scheduled urgently, unlike the challenges of getting answers from overseas suppliers and mills. At Calibre Steel, we generally stock G250 and G250 steel plate products, such as XLERPLATE® steel, in a wide range of thicknesses as available and can easily custom-order other widths and lengths if required for your project.
