
Large Square Billet 300x300mm Q345B
The Large Square Billet 300x300mm Q345B is a high-performance low-alloy structural steel
Manufacturer of high-quality 20CrMnTi alloy steel round billets in 500mm diameter. Perfect for gears, shafts, and high-strength components. Request a quote today.


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Product details
Our 500mm diameter Round Billet is manufactured from 20CrMnTi alloy steel, a chromium-manganese-titanium alloy known for its exceptional strength, toughness, and wear resistance. This high-quality billet is specifically designed for applications requiring superior mechanical properties and reliability. The 20CrMnTi grade offers excellent hardenability and fatigue resistance, making it ideal for critical components in automotive, machinery, and heavy equipment industries.
| Product Name | Alloy Steel Round Billet |
| Material Standard | GB/T 3077-2015 |
| Steel Grade | 20CrMnTi |
| Shape | Round |
| Nominal Diameter | 500 mm |
| Diameter Tolerance | ± 5.0 mm |
| Standard Length | 3000-6000 mm |
| Length Tolerance | +100/-0 mm |
| Chemical Composition (GB/T 3077-2015) | |
|---|---|
| Element | Content (%) |
| Carbon (C) | 0.17 – 0.23 |
| Silicon (Si) | 0.17 – 0.37 |
| Manganese (Mn) | 0.80 – 1.10 |
| Chromium (Cr) | 1.00 – 1.30 |
| Titanium (Ti) | 0.04 – 0.10 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.035 |
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The Large Square Billet 300x300mm Q345B is a high-performance low-alloy structural steel

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