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HRB400 vs HRB500 Steel Rebar: Complete Comparison Guide
HRB400 and HRB500 are two commonly used hot rolled deformed steel rebars in construction engineering. The main difference between them is strength level, ductility, and application scope. HRB400 offers better ductility and construction flexibility, while HRB500 provides higher yield strength for heavy-load and high-rise structures.
This guide compares HRB400 vs HRB500 steel rebar in terms of mechanical properties, applications, cost, and engineering suitability to help buyers and engineers choose the right reinforcing steel.
What is HRB400 Steel Rebar?
HRB400 is a hot rolled deformed reinforcing bar with a minimum yield strength of 400MPa. It is widely used in residential buildings, bridges, highways, and general infrastructure due to its good ductility and cost efficiency.
Key Features:
Yield strength: ≥400MPa
Excellent ductility
Strong concrete bonding
Widely used in general construction
What is HRB500 Steel Rebar?
HRB500 is a higher-strength reinforcing steel bar with a minimum yield strength of 500MPa. It is designed for high-load structures and advanced engineering projects requiring stronger reinforcement performance.
Key Features:
Yield strength: ≥500MPa
Higher load-bearing capacity
Suitable for high-rise buildings
Better performance in heavy structures
HRB400 vs HRB500 Comparison Table
| Property | HRB400 | HRB500 |
|---|---|---|
| Yield Strength | ≥400MPa | ≥500MPa |
| Ductility | Higher | Lower |
| Construction Flexibility | Excellent | Moderate |
| Load Capacity | Medium | High |
| Cost | Lower | Higher |
| Application Range | General construction | Heavy-duty structures |
Application Comparison
HRB400 Applications:
Residential buildings
Bridges and highways
Standard infrastructure
General reinforced concrete works
HRB500 Applications:
High-rise buildings
Heavy industrial structures
Large-span bridges
High-load engineering projects
Seismic zone constructions
HRB400 vs HRB500: Which One Should You Choose?
👉 Choose HRB400 if:
You need better ductility
Project is standard construction
Cost efficiency is important
👉 Choose HRB500 if:
High strength is required
Project involves heavy load
High-rise or large infrastructure
Engineering Insight
In modern construction, HRB400 is still the most widely used rebar due to its balance of strength and workability. However, HRB500 is increasingly used in large-scale infrastructure projects where higher structural performance is required.
Supply & Standards
Both HRB400 and HRB500 are produced according to GB 1499.2 standard and widely accepted in global construction markets.
Hot rolled production process
Ribbed surface for concrete bonding
Available in various diameters (6mm–50mm)
Export packaging available
FAQ: HRB400 vs HRB500 Steel Rebar
1. What is the difference between HRB400 and HRB500 steel rebar?
HRB400 has a minimum yield strength of 400MPa, while HRB500 has a higher yield strength of 500MPa. HRB500 provides stronger load-bearing capacity, while HRB400 offers better ductility and construction flexibility.
2. Which is better for construction, HRB400 or HRB500?
It depends on the project type. HRB400 is better for general construction due to its good ductility and cost efficiency. HRB500 is more suitable for high-rise buildings and heavy-load structures.
3. Is HRB500 stronger than HRB400?
Yes. HRB500 has higher tensile and yield strength compared to HRB400, making it suitable for more demanding engineering applications.
4. Can HRB400 and HRB500 be used together in one project?
Yes. In many construction projects, HRB400 is used for general reinforcement, while HRB500 is used in high-stress structural areas.
5. Which steel rebar is more cost-effective?
HRB400 is generally more cost-effective because it has lower material cost and is widely used in standard construction projects.
6. What standards do HRB400 and HRB500 follow?
Both HRB400 and HRB500 are produced according to GB 1499.2 standard and are widely used in global construction markets.
7. Are HRB400 and HRB500 suitable for earthquake-resistant construction?
Yes. HRB400 is widely used due to its good ductility, while HRB500 is used where higher strength is required in seismic zones.
8. What are the main applications of HRB400 and HRB500?
HRB400 is used in residential buildings, bridges, and general infrastructure. HRB500 is used in high-rise buildings, large bridges, and heavy industrial structures.
9. Which rebar is better for high-rise buildings?
HRB500 is generally preferred for high-rise buildings due to its higher strength and load-bearing capacity.
10. What is the main advantage of HRB400?
The main advantage of HRB400 is its balance of strength, ductility, and cost efficiency, making it ideal for general construction.
Contact Section
For technical support, pricing, and export inquiries:
📞 Phone/WhatsApp/WeChat: +8615769214734
📧 Email: office@dongmjd.com
We supply HRB400 and HRB500 steel rebar for global construction projects.
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