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Round Steel Bar
Round Steel Bar is designed for project supply. Solid round steel bar with uniform section, stable strength, and good machinability for shafts, fasteners, forged parts, structural supports, and precision components.
| Material: | Q235B, 45#, 20Cr, 40Cr; ASTM A36/1020/A572 Gr50; EN S235JR/S355JR/P265GH; JIS SS400/S45C; Russian St series and 09G2S |
| Standards: | GB/T 702, GB/T 905; ASTM A108/A36/A572; EN 10060/EN 10263; JIS G3101/G4303; GOST 2590/GOST 7417 |
| Diameter: | Φ10-Φ300 mm |
| Length: | Common 6 m fixed length; cutting, chamfering, and grinding available |
| Process: | Hot-rolled black round bar; cold-drawn bright finish available |
Product Introduction
Round Steel Bar is designed for project supply. Solid round steel bar with uniform section, stable strength, and good machinability for shafts, fasteners, forged parts, structural supports, and precision components.
Key Features
• Hot-rolled solid forming provides uniform cross-section, stable strength, and excellent machining performance.
• Multiple carbon and alloy steel grades suit turning, milling, forging, and heat treatment.
• Regular surface and tight dimensional tolerance support cutting, bending, and finishing.
• Solid structure gives strong load-bearing and torsional performance for mechanical parts.
Technical Specifications
• Material: Q235B, 45#, 20Cr, 40Cr
• ASTM A36/1020/A572 Gr50
• EN S235JR/S355JR/P265GH
• JIS SS400/S45C
• Russian St series and 09G2S
• Standards: GB/T 702, GB/T 905
• ASTM A108/A36/A572
• EN 10060/EN 10263
• JIS G3101/G4303
• GOST 2590/GOST 7417
• Diameter: Φ10-Φ300 mm
• Length: Common 6 m fixed length; cutting, chamfering, and grinding available
• Process: Hot-rolled black round bar; cold-drawn bright finish available
Applications
• Mechanical shafts, bolts, gears, mold blanks, and machined components Steel-structure embedded parts, tie rods, brackets, and fastening connectors Hardware, automotive, and engineering-machinery forged parts Building anchor bolts and solid equipment support members.
Ordering & Quality Documentation
For quotation, provide section type and designation, steel grade, nominal dimensions, lengths, applicable standard, surface treatment or processing requirements, quantity and delivery destination.
For project procurement, specify any required material test certificate (MTC), inspection report, certificate of origin or other shipment documentation in your inquiry. Document type, availability and applicability must be confirmed for the exact material grade, shipment and order; no blanket certification is implied.
Product FAQ
Q: Which details are needed for section procurement?
A: Provide the section designation, grade, dimensions, lengths, standard, finish and quantity.
Q: What should be checked for structural applications?
A: Confirm the section and material specifications against the project design and requested inspection documentation.
Request a Quote
Send MGTSP the required product specification, quantity and destination for a quotation. Any listed grades, processing options, inspection documents and delivery terms remain subject to order confirmation.










