American Steel Profiles ASTM A572 Round Steel Bar
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 |
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
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.
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.
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.











