What Is ASTM A1085 Hollow Structural Section Steel?
The ASTM A1085/A1085M-15 standard outlines the requirements for cold-formed welded carbon steel hollow structural sections (HSS) used in construction work. HSS sections are available in square, rectangular, and circular shapes and are designed to provide strength, weldability, and consistent mechanical properties.
The ASTM A1085/A1085M-15 standard has improved tolerances, structural reliability, and performance in applications requiring strength and durability. A1085 HSS sections are used in various construction applications, including buildings, bridges, and towers, among others.
Applications and Benefits of ASTM A1085 Hollow Structural Section Steel Testing
Scope
ASTM A1085/A1085M-15 is a standard that defines the specifications for the structural use of cold-formed welded carbon steel hollow structural sections (HSS). Hollow structural sections are commonly employed in structural engineering, infrastructure, and construction works owing to their high strength, structural regularity, and efficient ability to withstand structural loads. The spec defines the specifications for manufacturing, chemical, mechanical, and test properties to ensure the performance of structural steel elements.
ASTM A1085/A1085M-15 applies to:
– Cold-formed welded carbon steel hollow structural sections
– Square HSS
– Rectangular HSS
– Round HSS
Applications
- Structural building frameworks
- Bridges and infrastructure structures
- Architectural structural members
- Industrial structures and platforms
- Transmission towers and poles
- Structural columns and beams
- Offshore structures
- Construction equipment frames
Benefits
- Improved strength and load-bearing capacity
- Consistent mechanical properties
- Enhanced weldability and fabrication performance
- Tighter dimensional tolerances
- Improved structural reliability
- Reduced structural weight due to higher-strength steel
- Suitable for seismic and demanding structural applications
Our ASTM A1085 Testing Procedure
Raw Material & Cold Forming
Carbon steel strip or plate is selected and cold-formed into hollow structural shapes.
1Welding & Heat Treatment
Edges are welded to form HSS and may undergo heat treatment if required.
2Dimensional Inspection
Dimensions, wall thickness, and straightness are verified for compliance.
3Mechanical & NDT Testing
Mechanical properties are tested and welds are inspected for defects.
4ASTM A1085 Test Parameters and Requirements
| Parameter | Details |
|---|---|
| Material Type | Cold-formed welded carbon steel HSS |
| Shapes Covered | Square, rectangular, and round sections |
| Manufacturing Method | Cold forming with electric resistance welding |
| Minimum Yield Strength | 50 ksi (345 MPa) |
| Minimum Tensile Strength | 65 ksi (448 MPa) |
| Applicable Products | Structural hollow sections for construction |
| Testing Requirements | Mechanical testing, dimensional inspection, and weld quality evaluation |
| Output Units | Mechanical properties (MPa or ksi), dimensional tolerances (mm or inches) |
- Universal testing machine (UTM)
- Dimensional measuring instruments (callipers, micrometres)
- Ultrasonic testing equipment
- Visual inspection tools
- Hardness testing equipment
- Chemical composition analysis instruments
- Data acquisition and reporting software
Equipment and Instrumentation Used for ASTM A1085 Testing
What You Receive: Test Report, Data, and Certification
- Mechanical property verification (yield strength, tensile strength, elongation)
- Chemical composition report
- Dimensional inspection results
- Weld quality inspection report
- Structural verification reports
ASTM A1085 Hollow Structural Section Steel FAQs
ASTM A1085 specifies a minimum yield strength of 50 ksi (345 MPa) and a minimum tensile strength of 65 ksi (448 MPa) for structural steel hollow sections.
They are produced by cold-forming carbon steel plates or strips into hollow shapes and welding the edges using electric resistance welding (ERW) to form continuous tubular sections.
HSS sections provide high strength-to-weight ratio, uniform load distribution, excellent torsional resistance, and aesthetic structural designs, making them ideal for modern construction.
The sections are produced using cold-forming processes followed by electric resistance welding (ERW) to create continuous hollow shapes with uniform wall thickness.
ASTM A1085 HSS is commonly used in high-rise buildings, bridges, stadium structures, industrial plants, structural frames, and architectural steel structures.
ASTM A1085 is a specification for cold-formed, welded carbon steel hollow structural sections (HSS), including square, rectangular, and round tubes. These sections are used in buildings, bridges, towers, and other structural applications. The specification establishes requirements for chemical composition, tensile properties, dimensions, manufacturing, and testing to help ensure consistent structural performance.
ASTM E1085 specifies the analysis of low-alloy steels using wavelength-dispersive X-ray fluorescence (WDXRF) spectrometry. A prepared steel sample is exposed to X-rays, producing characteristic fluorescent signals from its constituent elements. The instrument measures these signals to determine concentrations of elements such as chromium, nickel, manganese, molybdenum, and copper. The results help verify chemical composition and support quality control.
Why Choose Infinita Lab for Hollow Structural Section Steel Testing
When your Hollow Structural Section Steel results have to hold up - for compliance, a customer audit, or an engineering decision - ASTM A1085 accuracy and an unbiased third-party report matter more than price. Infinita Lab routes your ASTM A1085 hollow structural section steel testing to ISO/IEC 17025-accredited U.S. partner labs with hands-on method experience, so you get defensible data, transparent reporting, and turnaround times built around your project deadline - not ours.
Need ASTM A1085 Hollow Structural Section Steel Testing You Can Rely On?
Send query us at hello@infinitalab.com or call us at (888) 878-3090 to learn more about our services and how we can support you.
