ASTM Ss400 A36 A572 Q235 Steel Round Bar 5.5-250mm Diameter Hot Rolled Structural Rod
Zhengde Steel Round Bar refers to solid steel strips with circular cross-sections, available in diameters ranging from 5.5mm to 250mm. These round bars are manufactured through hot-rolled, forged, or cold-drawn processes to meet diverse industrial requirements.
Hot-rolled round steel specifications span from 5.5mm to 250mm. Smaller diameters (5.5-25mm) are typically supplied in bundled straight strips for bolts and mechanical components, while larger diameters (over 25mm) serve as raw material for mechanical parts and seamless steel pipe billets.
| Diameter (mm) | Weight (kg/m) | Diameter (mm) | Weight (kg/m) |
|---|---|---|---|
| 6 | 0.222 | 14 | 1.21 |
| 8 | 0.395 | 17 | 1.78 |
| 10 | 0.617 | 19 | 2.23 |
| 12 | 0.888 | 21 | 2.72 |
| 22 | 2.98 | 63 | 24.5 |
| 25 | 3.85 | 70 | 30.2 |
| 28 | 4.83 | 85 | 44.5 |
| 30 | 5.55 | 95 | 55.6 |
| 32 | 6.31 | 105 | 68 |
| 34 | 7.13 | 115 | 81.5 |
| 36 | 7.99 | 125 | 96.3 |
| 38 | 8.9 | 130 | 104 |
| 40 | 9.86 | 140 | 121 |
| 42 | 10.9 | 150 | 139 |
| 45 | 12.5 | 160 | 158 |
| 48 | 14.2 | 170 | 178 |
| 50 | 15.4 | 180 | 200 |
| 53 | 17.3 | 190 | 223 |
| 56 | 19.3 | 220 | 298 |
Available in multiple international standards including ASTM Ss400, A36, A572, Q235, AISI 1020, and 1045 to ensure compatibility with global engineering requirements.
Unlike ribbed or grooved reinforcement bars, round bars feature smooth circular surfaces that provide consistent performance in specialized applications.
Available in hot-rolled, forged, and cold-drawn variants to match specific mechanical property requirements and manufacturing processes.
- Strict production and inspection compliance with international standards
- Competitive pricing based on real-time market analysis
- Secure transaction protocols protecting customer investments
- Comprehensive after-sales support and technical assistance
- Long-term partnership focus through consistent quality and service
Shandong Zhengde Metal Manufacturing Co., Ltd. operates as an integrated enterprise with five production bases across China, featuring over 100 production lines and extensive quality control facilities including nationally recognized laboratories and technical centers.
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