Top Selling Hot Rolled Forged Low Carbon Steel Bar 99.8% Pure Iron Round Rod Free Cutting Steel for Bending Services
Product Detail
| Product Name | Carbon Steel Round Bar | Tolerance | ±1% (Diameter & Length) |
| Brand Name | Royal | Surface Treatment | Black, Pickled, HL, Brushed, Polished, Phosphated, Galvanized (Optional) |
| Model Number | Bar | Feature | Free Cutting, Bendable, Weldable, High Quality, Structural Performance |
| Place of Origin | Tianjin, China | Special Use | Free Cutting Steel |
| Material | Carbon Steel (Non-Alloy) | Usage | Building Construction Material, Machinery Manufacturing, Automotive Parts, Construction Hardware, Electrical Components |
| Type | Carbon Steel Bar, Structural Steel Bar, Free Cutting Steel | Processing Service | Bending, Welding, Decoiling, Cutting, Punching, Machining, Shaping |
| Steel Grade | 1045, 4140, SC45C, 42CrMo, 16Mn, 40Cr, 42Cr | Sample | Provided freight borne by customer |
| Standard | ASTM, AISI, DIN, GB, JIS | Delivery Time | With 7-15 days |
| Technique | Cold Drawn (Supplementary: Hot Rolled & Forged optional) | Packing | Standard Seaworthy Package (Bundled with steel strips + waterproof plastic film; customized packaging available) |
| Purity | 99.8% Pure Iron (Base Material) | Shipping Terms | FOB, CIF, CFR, DDP |
| Carbon Content | Low Carbon (Typical ≤0.12% for free cutting; varies by grade) | Export Documents | Commercial Invoice, Packing List, Certificate of Origin (Complete set provided) |
| Diameter | Customized | Quality Guarantee | 12 Months |
| Length | 1–12m / Customized | After-Sales Service | Online Technical Support, Technical Guidance, Quality Feedback Response |
Chemical Composition & Mechanical Properties
Chemical Composition (Typical Value)
|
Element
|
C (Max)
|
Si (Max)
|
Mn
|
P (Max)
|
S (Max)
|
Fe
|
|
Content
|
≤0.12%
|
≤0.35%
|
0.30–0.60%
|
≤0.045%
|
≤0.045%
|
≥99.8%
|
Mechanical Properties
|
Yield Strength
|
Tensile Strength
|
Elongation
|
Hardness (HB)
|
Bending Performance
|
|
≥210MPa
|
330–490MPa
|
≥30%
|
≤137
|
No crack after cold bending
|
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 | 2.47 kg/m | 1,200–1,500 | AISI 1045 / 4140, light-duty shafts |
| 25 mm / 0.98 in | 6 m / 20 ft | 3.85 kg/m | 1,800–2,200 | Good machinability, general mechanical parts |
| 30 mm / 1.18 in | 6 m / 20 ft | 5.55 kg/m | 2,500–3,000 | AISI 4140 forged, transmission components |
| 32 mm / 1.26 in | 6–12 m / 20–40 ft | 6.31 kg/m | 3,000–3,600 | Medium-load structural & machinery use |
| 40 mm / 1.57 in | 6 m / 20 ft | 9.87 kg/m | 4,500–5,500 | AISI 4140 Q&T, axles & hydraulic rods |
| 50 mm / 1.97 in | 6–12 m / 20–40 ft | 15.42 kg/m | 6,500–8,000 | AISI 4340 forged, high-stress components |
| 60 mm / 2.36 in | 6–12 m / 20–40 ft | 22.20 kg/m | 9,000–11,000 | Heavy-duty shafts, oil & gas tools |
Surface Finish
Carbon Steel Surface
Galvanized Surfce
Painted Surface
Application
Widely used in machinery manufacturing, automotive parts, construction hardware, electrical components, and custom metal processing. Perfect for products requiring bending, cutting, drilling, and welding—such as fasteners, shafts, brackets, connectors, and structural components.
Our Advantages
1.High Purity Guarantee - 99.8% pure iron raw material, strict quality control for stable performance.
2.Free Cutting & Bendable - Optimized for easy processing, reducing production costs and improving efficiency.
3.Customization Support - Flexible diameter, length, and surface treatment to meet specific project needs.
4.Reliable Craftsmanship - Hot rolled + forged process, ensuring high strength and durability.
6.After-Sales Service - Technical support, free samples, and quality guarantee for 12 months.
Packaging & Shipping
Packaging: Bundled with steel strips, wrapped in waterproof plastic film; customized packaging available.
Shipping Terms: FOB, CIF, CFR, DDP; sea/air/land freight optional.
FAQ
Q1: This is my first time importing steel products. Can you help me?
A: Of course. We have an agent who will arrange the shipment and we will work with you.
Q2: Do you provide customized product services?
A: Yes, if you have your own design, we can produce according to your specifications and drawings.
Q3: Can I visit your factory?
A: Of course. We welcome customers from all over the world to visit our factory.
Q4: Is there a quality inspection before product shipment?
A: Of course. All our products undergo strict quality testing before packaging. Unqualified products will be destroyed. Customers can also designate a third party to inspect the products before shipment.
