American Steel Profiles ASTM A572 Round Steel Bar

Short Description:

ASTM A572 Round Steel Bar is a kind of high strength, low alloy (HSLA) steel bar that is A572 grade steel which is defined by ASTM. It has good strength to weight ratio, weldability, corrosion resistance and is extensively used in general structural, construction, and industrial applications.


  • Model Number: A572
  • Standard: ASTM
  • Technique: Hot Rolled
  • Yield Strength: 345–450 MPa (depending on grade)
  • Tensile Strength: 450–620 MPa
  • Length: 6 m, 12 m, or custom cut lengths
  • Applications: Structural beams, bridges, industrial machinery, heavy-duty fabrication
  • Certification: ISO
  • Delivery Time: 7–15 days depending on order quantity
  • Payment Terms: T/T: 30% deposit + 70% balance before shipment
  • Product Detail

    Product Tags

    Product Detail

    Item Details
    Product Name ASTM A572 Steel Bar
    Material Standard ASTM A572 High-Strength Low-Alloy (HSLA) Steel
    Grade Grade 42 / 50 / 55 / 60 (Most commonly supplied: Grade 50)
    Product Type Round Bar
    Chemical Composition C ≤ 0.23%; Mn 0.85–1.35%; P ≤ 0.04%; S ≤ 0.05%; Si 0.15–0.40%; Cu ≤ 0.20%
    Yield Strength 345–450 MPa (depending on grade)
    Tensile Strength 450–620 MPa (depending on grade)
    Elongation ≥ 18%
    Available Sizes Diameter / Width: Custom; Length: 6 m, 12 m, or cut-to-length
    Surface Condition Black / Pickled & Oiled / Painted / Galvanized (optional)
    Manufacturing Process Hot Rolled
    Processing Services Cutting, Bending, Threading, Machining, CNC Processing
    Applications Structural beams, bridges, industrial machinery, heavy-duty fabrication, construction frameworks
    Advantages High strength-to-weight ratio, good weldability, excellent machinability, durable and reliable
    Quality Control Mill Test Certificate (MTC); ISO 9001 certified
    Packing Steel-strapped bundles, optional wooden pallets or anti-corrosion wrapping, export seaworthy packaging
    Delivery Time 15–30 days depending on order quantity and customization
    Payment Terms T/T: 30% advance + 70% balance
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    ASTM A572 Round Steel Bar Size

    Diameter (mm / in) Length (m / ft) Weight per Meter (kg/m) Approx. Load Capacity (kg) Notes
    20 mm / 0.79 in 6 m / 20 ft 2.56 kg/m 750–950 ASTM A572 Grade 50 HSLA
    25 mm / 0.98 in 6 m / 20 ft 3.99 kg/m 1,050–1,350 Good weldability, structural use
    30 mm / 1.18 in 6 m / 20 ft 5.76 kg/m 1,600–2,000 General structural and fabrication
    32 mm / 1.26 in 12 m / 40 ft 6.16 kg/m 2,000–2,400 Medium-duty construction
    40 mm / 1.57 in 6 m / 20 ft 9.95 kg/m 2,700–3,200 Industrial machinery and beams
    50 mm / 1.97 in 6–12 m / 20–40 ft 15.52 kg/m 4,000–4,700 Load-bearing components
    60 mm / 2.36 in 6–12 m / 20–40 ft 22.34 kg/m 5,500–6,200 Heavy structural steel

    ASTM A572 Round Steel Bar Customized Content

    Customization Category Options Description / Notes
    Dimensions Diameter, Length Diameter: Ø10–Ø100 mm (customizable); Length: 6 m / 12 m or cut-to-length according to project requirements
    Processing Cutting, Threading, Bending, Machining Bars can be cut, threaded, bent, drilled, or machined according to drawings or specific application needs
    Surface Treatment Black, Pickled & Oiled, Galvanized, Painted Selected based on indoor/outdoor use and corrosion resistance requirements
    Straightness & Tolerance Standard / Precision Controlled straightness and dimensional tolerance available upon request
    Marking & Packaging Custom Labels, Heat No., Export Packing Labels include size, grade (ASTM A572 Grade 50), heat number; packed in steel-strapped bundles suitable for container shipment or local delivery

    Surface Finish

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    Carbon Steel Surface

    Galvanized Surfce

    Painted Surface

    Application

    1.Supports for structures
    Beams, columns, baseplates, brackets and other load bearing structural elements that need to be strong and long-lasting.

    2.Steel Structures & Buildings
    Light, medium and heavy steel construction for factories, bridges, workshops, warehouses and all related building elements.

    3.Machinery & Equipment Parts
    Frames, mounts, shafts and mechanical parts that demand high strength and toughness.

    4.Fabricated Steel Products
    Welded assemblies and special plates and bars for structural, industrial, and general manufacturing needs.

    GB Standard Round Bar (4)

    Our Advantages

    Reliable Quality: Steel to ASTM standards with performance you can trust.

    Options customizables : Sous plusieurs formats, qualité et options de traitement.

    Reliable Sourcing: Strong sourcing and prompt delivery.

    Professional Assistance: Advice from the selection to the application.

    Value for Money: Reasonable prices no compromise on the quality.

    Export-friendly: Suitable packaging for ocean shipment along with full documentation.

    *Send the email to [email protected] to get a quotation for your projects

    Packaging & Shipping

    Packing:
    The steel bars are tied up with rust-proof steel straps tightly, strong enough to make it unmoveable in transit.

    The bundles are fastened on wooden pallet or on reinforced support for long distance transportation.

    For corrosion protection, optional protective covers (plastic, tarpaulin or paint) may be used.

    Every bundle is tagged with size, grade (ASTM A572 Grade 50), heat number and job code for easy track and trace.

    Shipping:
    Suitable for container shipment (FCL/LCL), flat rack, or bulk cargo based on quantity and destination.

    The delivery time is usually 15 to 30 days varies according to the quantity and customization.

    The documents included are the mill test certificate (MTC), packing list and shipping documents for trouble-free customs clearance.

    Flexible logistics options allow for on time delivery to both domestic and international customers.

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    round rod (6)

    FAQ

    Q1: What is the material used?
    A: ASTM A572 Grade 50 high strength low alloy steel which has good strength and weldability and suitable for structural and general industrial applications.

    Q2: Can the bars be customized?
    A: Yes, the diameter, length, surface finish and mechanical properties can be customized according to your projects.

    Q3: What surface treatments are available?
    A: Black / pickled & oiled / hot-dip galvanized / painted for indoor use, outdoor use or coastal use.

    Q4: Where is it applied?
    A: Structural support, steel structures, bridges, industrial machinery and fabrications.

    Q5: Packing & shipping?
    A: Bundled with steel straps, pallets or covers are available as option; by container, by flat rack, by truck. MTC included.


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