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ASTM A572 / A572M
High-strength low-alloy structural steel
Standard specification for high-strength low-alloy columbium-vanadium structural steel.
Carbon Steel — Industrial Product
High Strength Structural Steel Plate
ASTM A572 Gr 50 high-strength steel plate supplied to ASTM A572 / EN 10025-6 for bridges, high-rise and heavy engineering applications.
Indicative priceUSD 720 - 950 / MT
Lead time15 - 25 working days
01
Overview
High Strength Structural Steel Plate combines low-carbon carbon steel with quenched and tempered processing for reliable high yield strength, toughness and consistent dimensional control. The Gr 50 minimum yield strength enables lighter and more efficient structures, making the plate suited to high-rise buildings, long-span bridges, heavy machinery frames, transport equipment and renewable energy structures. Supplied to ASTM A572 / EN 10025-6 with mill test certification per EN 10204 3.1, it supports global procurement for demanding structural and infrastructure projects.
Key Characteristics
- 01 High Strength Provides high mechanical strength for demanding structural and industrial applications.
- 02 Good Toughness Provides good toughness and resistance to brittle fracture.
- 03 Fracture Resistance Offers resistance to crack initiation and propagation under demanding service conditions.
- 04 Good Weldability Supports welding using suitable procedures and compatible filler materials.
- 05 Standard Compliance Manufactured and supplied in accordance with the specified material and product standards.
- 06 Traceable Documentation Supplied with documentation supporting material identification, chemical and mechanical traceability.
Typical Applications
- Building & Structural Structural and architectural components for commercial, industrial and high-rise buildings.
- Bridge & Infrastructure Structural components and plate applications in bridges, elevated structures and major infrastructure projects.
- Shipbuilding Hull, structural sections and piping for commercial and naval vessels.
- Railway & Rolling Stock Structural profiles, panels, underframe and other components for rail vehicles and locomotives.
- Renewable Energy Components for wind power, photovoltaic mounting systems and energy storage applications.
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Specifications
Numbers in this section correspond to the applicable product standard, formatted for direct use in enquiry and approval documents.
Product specification
- Material
- High Strength Structural Steel
- Grade
- A572 Gr 50 / S355JR / Q345
- UNS designation
- K02304
- Product form
- Plate / sheet
- Manufacturing method
- Hot rolled / cold rolled
- Surface / condition
- Mill finish
- Cross-section
- Flat rectangular section, uniform thickness
Supply specifications
- Thickness
- 0.5 - 100 mm
- Width
- 1,000 - 3,000 mm
- Length
- 2,000 - 12,000 mm
- Tolerance
- According to ASTM A480 / EN 10051
- Surface finish
- Mill finish
- Edge condition
- Mill edge; slit edge on request
- Marking
- Standard mill marking; customer marking on request
Final supply is confirmed against the project drawing, purchase agreement and the mill test certificate.
Chemical composition
ElementRequirement
C <= 0.23 %
Si <= 0.40 %
Mn <= 1.35 %
P <= 0.040 %
S <= 0.050 %
Nb 0.005 - 0.05 %
V 0.01 - 0.15 %
Fe Balance
Reference: applicable standard High Strength Structural Steel.
Mechanical properties
PropertyRequirement
Tensile strength >= 450 MPa
Yield strength (0.2% offset) >= 345 MPa
Elongation in 50 mm >= 21 %
Hardness <= 200 HB
Reference: applicable standard High Strength Structural Steel at room temperature.
Physical properties
PropertyTypical Value
Density 7.85 g/cm³
Elastic modulus 200 GPa
Thermal conductivity 48 W/m·K at 100°C
Electrical resistivity 0.18 μΩ·m
Specific heat 485 J/kg·K
Melting range 1,450 - 1,520 °C
Thermal expansion 11.8 x 10⁻⁶ /°C
Reference: Typical material values, High Strength Structural Steel.
Reference framework
Standards & documentation
The applicable product, dimensional and inspection standards should be confirmed together in the purchase specification.
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EN 10025-6
Hot-rolled flat products - high yield strength
European reference for hot-rolled flat products of high yield strength structural steels in the quenched and tempered condition.
03
JIS G3106
Rolled steel for welded structure
Japanese reference for hot-rolled steel for welded structure (SM490 / SM520).
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GB/T 1591
High-strength low-alloy structural steels
Chinese reference for high-strength low-alloy structural steels with specified weather resistance.
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ASME SA572
ASME structural steel reference
ASME counterpart of ASTM A572 for high-strength structural applications.
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EN 10204
Inspection documents
Defines inspection document types such as 3.1 and 3.2 for metallic product delivery.
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Capability
From custom dimensions and precision sizing to heat treatment, surface finishing and product-specific processing, Wayland coordinates supply solutions tailored to your requirements.
Cutting
Cut-to-length and custom cutting according to order requirements.
Custom Dimensions
Non-standard dimensions, tolerances and dimensional combinations subject to product and mill capability.
Precision Sizing
Precision sizing and dimensional control for tighter tolerance requirements.
Cold Working
Cold drawing, cold sizing and other cold-working processes where required.
Heat Treatment
Heat treatment according to material, specification and applicable standard.
Surface Finishing
Surface treatment and finishing according to product, specification and application requirements.
Forming
Bending, forming and other shape modification according to drawings or order requirements.
Machining
Turning, drilling, milling and other machining operations where required.
Customization
Custom dimensions, lengths, surface conditions, end preparations and inspection requirements can be supplied according to project specifications. Final capability is confirmed per enquiry based on grade, size range and applicable standard.
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Quality
Inspection and documentation procedures are coordinated to meet the requirements of the applicable product standard and the project specification.
- Dimensional inspection Geometry, dimensions and tolerances against the applicable standard
- Visual and surface inspection Surface condition, marking and overall appearance
Documents
- Inspection Report
- Chemical analysis Per heat, against the applicable standard
- Mechanical testing Tensile, yield, elongation and hardness
- Non-destructive testing UT, eddy-current, hydrostatic or other NDT as applicable
- Positive material identification PMI for alloy verification when required
Documents
- Mill Test Certificate (MTC)
- Heat number traceability Heat number carried through MTC and product marking
- Third-party inspection coordination SGS / BV / TÜV on request
Documents
- Third-Party Inspection Report
- EN 10204 documentation 3.1 MTC standard; 3.2 on request
Documents
- EN 10204 3.1 Mill Test Certificate
- EN 10204 3.2 Inspection Certificate
- Certificate of Origin
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Selection
A well-prepared specification is the most efficient defence against clarification cycles.
- 01 Select material & grade
Choose the material grade according to service conditions, performance requirements and applicable standards.
- 02 Define size & supply condition
Specify the required dimensions, surface condition, heat-treatment condition and delivery requirements.
- 03 Confirm standard & requirements
State the applicable product standard, dimensional standard and governing project specification.
- 04 Define inspection & documentation
Confirm inspection, testing, certification and documentation requirements before order placement.
Example procurement specification
A complete specification suitable for enquiry, covering product, technical requirements, certification and delivery terms.
- Product
- High Strength Structural Steel Plate
- Grade
- A572 Gr 50
- Standard
- ASTM A572
- Dimensions
- Thickness 10 mm × Width 2000 mm × Length 6000 mm
- Condition
- Hot Rolled; Mill Edge
- Certification
- EN 10204 3.1 Mill Test Certificate
- Quantity
- 20 Metric Tons
- Packaging
- Seaworthy Export Packing
- Incoterm
- CIF Hamburg
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Logistics
From mill dispatch to destination port, each stage is coordinated with the nominated forwarder and documented against the purchase specification.
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Packaging
Export-suitable packaging with surface and edge protection.
Bundled, wrapped or crated according to product form and transport mode. Outer surface protected with weather-resistant material; ends and edges shielded against transit damage.
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Loading
FCL container for standard sizes; break bulk for oversized cargo.
Container loading via nominated forwarder. LCL and dimensions outside container allowance coordinated against the mill dispatch schedule.
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Documentation
Commercial invoice, packing list and certificate of origin.
Mill documentation travels with the shipment. EN 10204 3.1 / 3.2 certificates and third-party inspection reports provided as per purchase specification.
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Shipment
Sea freight as standard; alternative routes on request.
FCL / LCL container shipment or break bulk for oversized dimensions. Logistics coordinated through the nominated forwarder.
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Delivery
FOB · CFR · CIF · FCA · EXW arrangements available.
Incoterm 2020. Port of loading: Shanghai / Ningbo / Shenzhen. Final destination and terms confirmed per enquiry.
07
FAQ
Most enquiries reduce to a small set of recurring technical questions.
01 What is high-strength structural steel plate?
High-strength structural plate (ASTM A572 Gr 50 / EN S355JR / Q345 equivalent) offers minimum 345 MPa yield strength with good weldability for demanding structural applications.
02 What are typical applications?
High-strength structural plate is widely used for bridges, buildings, heavy equipment frames, mining machinery, truck and rail chassis, wind tower and power transmission structures.
03 What is the difference between A572 and A36?
A572 Gr 50 offers higher yield strength (50 ksi vs 36 ksi) with similar weldability. It is preferred where weight reduction and higher strength are required.
04 What thickness range is available?
Standard thickness 5 - 100 mm. Heavier thicknesses available on request.
05 Is impact testing available?
Yes. Charpy impact testing at specified temperatures is available to project specification.