Q390NC Coiled Steel Plate Process Requirements and Specifications: 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm
Price:4700
Contact Info
- Address:殷都區(qū)果園新村13號(hào)樓18240615609, Zip: 455000
- Contact: 小李
- Tel:18240615609
- Email:723485663@qq.com
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Description
Additional Information
Summary of Key Differences Among the Three
| Feature | Q390B | Q390NB | Q390MC |
|---|---|---|---|
| Quality Grade | Grade (Room Temperature Toughness) | Grade D (-20°C Toughness) | Grade C (0°C Toughness) |
| Process Requirement | Hot Rolling/Normalizing/TMCP | Normalizing or Normalizing Rolling | Thermomechanical Rolling (TMCP) |
| Impact Temperature | ≥ Room Temperature | ≥ -20°C | ≥ 0°C |
| Core Advantage | High Cost-Effectiveness, Strong Versatility | Excellent Low-Temperature Crack Resistance | Good Strength-Toughness Balance, Easy Welding |
| Application Scenario | Conventional Construction Machinery | Engineering in Cold Regions | Marine/High-Pressure Vessels |
Additional Notes
- Composition Differences: Q390NB/Q390MC have stricter control over phosphorus and sulfur impurities (P≤0.030%, S≤0.025%), resulting in higher purity.
- Process Impact: TMCP (Q390MC) achieves fine-grained microstructure directly through controlled rolling and cooling, while normalizing (Q390NB) requires additional heat treatment.
In summary, Q390B is suitable for heavy-duty structures at room temperature, Q390
High-Strength Coil 11.5 Q390NB 1500 1 28.49 High-Strength Coil 7.5 Q390NB 1600 1 28.76 High-Strength Coil 11.5 Q390NB 1500 1 28.75 High-Strength Coil 11.5 Q390NB 1500 1 28.25 High-Strength Coil 11.5 Q390NB 1500 1 28.9 High-Strength Coil 11.5 Q390NB 1500 1 28.85 High-Strength Coil 11.5 Q390NB 1500 1 28.9 High-Strength Coil 4.5mm Q390NB 1500 1 28.93 High-Strength Coil 4.5mm Q390NB 1500 1 29 NB focuses on low-temperature toughness, while Q390MC uses TMCP technology to achieve high performance and lightweight design
| Industry Category: | Metallurgy & Minerals/Common Steel/Steel Plates |
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