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Galvanized Rebar Supplier | ASTM A767 Hot Dip Galvanized Reinforcing Bar
Xi'an Dongmeng Group Co., Ltd. supplies hot dip galvanized rebar and zinc coated reinforcing bar for reinforced concrete structures exposed to moisture, chloride, seawater, de-icing salts and aggressive environments. Compared with black rebar, galvanized rebar provides improved corrosion protection through a metallurgically bonded zinc coating, making it a preferred reinforcement material for bridges, marine structures, tunnels, coastal buildings, ports, foundations and infrastructure projects.
We can supply galvanized rebar according to ASTM A767, ASTM A1094, ISO 14657, ASTM A615, BS 4449, EN 10080 and GB/T standards, with available grades including ASTM Grade 40, Grade 60, Grade 75, B500B, HRB400 and HRB500. Custom cutting, bending, bundle marking, zinc coating inspection and third-party inspection are available according to project requirements.
What Is Galvanized Rebar?
Galvanized rebar is a steel reinforcing bar coated with a protective zinc layer by hot dip galvanizing. The zinc coating works as both a physical barrier and sacrificial protection system. When the surface is exposed to moisture or chloride ions, the zinc layer helps delay corrosion of the steel core and improves the long-term durability of reinforced concrete structures.
For projects where repair cost is high and service life is critical, galvanized rebar is often selected as a cost-effective alternative to stainless steel rebar and a more durable solution than ordinary black rebar.
Why Choose Hot Dip Galvanized Rebar?
Better Corrosion Resistance
The zinc coating helps protect reinforcing steel from moisture, chloride and aggressive concrete environments. This makes galvanized rebar suitable for coastal, marine and infrastructure projects where corrosion risk is higher.
Longer Service Life
Galvanized rebar is used in structures requiring extended design life, especially where concrete cracking, chloride penetration or humidity may accelerate rebar corrosion.
Good Bond with Concrete
The ribbed surface of deformed rebar maintains strong mechanical anchorage with concrete, while the galvanized coating provides additional corrosion protection.
Lower Life-Cycle Maintenance Cost
Although galvanized rebar has a higher initial cost than black rebar, it can reduce future repair, replacement and concrete rehabilitation costs in corrosive environments.
Easier Handling Than Epoxy Coated Rebar
Galvanized rebar is more tolerant of normal jobsite handling. Minor surface scratches can still be protected by zinc sacrificial action, while epoxy coated rebar depends heavily on coating integrity.
Galvanized Rebar Specifications
| Specification Item | Available Range |
|---|---|
| Diameter | 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm, 28mm, 32mm, 36mm, 40mm, 50mm |
| US Bar Size | #3, #4, #5, #6, #7, #8, #9, #10, #11, #14, #18 |
| Length | 6m, 9m, 12m, 20ft, 40ft or custom length |
| Steel Grade | ASTM A615 Grade 40 / 60 / 75, BS4449 B500B, HRB400, HRB500 |
| Coating Standard | ASTM A767, ASTM A1094, ISO 14657 |
| Surface Type | Deformed ribbed bar with zinc coating |
| Processing | Straight bar, cut-to-length, bent rebar, fabricated rebar |
| Packing | Steel strip bundle, waterproof wrapping, bundle tag, container loading |
| Inspection | Diameter, rib height, weight, zinc coating thickness, adhesion, bending, tensile test |
Common Galvanized Rebar Size Table
| Diameter | Approx. Weight kg/m | Common Length | Typical Application |
|---|---|---|---|
| 6mm | 0.222 | 6m / 12m | Light reinforcement, mesh, small concrete elements |
| 8mm | 0.395 | 6m / 12m | Residential construction, slab reinforcement |
| 10mm | 0.617 | 6m / 12m | Foundation, wall, light structure |
| 12mm | 0.888 | 6m / 12m | Building structure, beam, column |
| 16mm | 1.580 | 6m / 12m | Bridge deck, foundation, heavy concrete |
| 20mm | 2.470 | 9m / 12m | Infrastructure, marine structure, retaining wall |
| 25mm | 3.850 | 9m / 12m | Bridge, port, pile foundation |
| 32mm | 6.310 | 9m / 12m | Heavy civil engineering, dam, large foundation |
| 40mm | 9.870 | 9m / 12m | Large infrastructure, heavy-load structure |
| 50mm | 15.420 | 9m / 12m | Special engineering and heavy reinforcement |
Available Steel Grades
| Standard | Grade | Yield Strength | Typical Use |
|---|---|---|---|
| ASTM A615 | Grade 40 | 280 MPa / 40 ksi | Light to medium reinforcement |
| ASTM A615 | Grade 60 | 420 MPa / 60 ksi | Bridges, buildings, foundations |
| ASTM A615 | Grade 75 | 520 MPa / 75 ksi | Heavy structural reinforcement |
| BS 4449 / EN 10080 | B500B | 500 MPa | European construction projects |
| GB/T | HRB400 | 400 MPa | General reinforced concrete |
| GB/T | HRB500 | 500 MPa | High-strength concrete structures |
Galvanized Rebar Standards
| Standard | Description |
|---|---|
| ASTM A767 / A767M | Zinc-coated hot dip galvanized steel bars for concrete reinforcement |
| ASTM A1094 / A1094M | Continuous hot dip galvanized steel bars with zinc or zinc-alloy coating |
| ISO 14657 | Zinc-coated steel for reinforcement of concrete |
| ASTM A615 / A615M | Deformed and plain carbon steel bars for concrete reinforcement |
| BS 4449 | Weldable reinforcing steel bar, coil and decoiled product |
| EN 10080 | Steel for reinforcement of concrete |
| GB/T 1499.2 | Steel for reinforced concrete, hot rolled ribbed bars |
ASTM A767 Galvanized Rebar
ASTM A767 galvanized rebar is produced by immersing properly prepared reinforcing bars into a molten zinc bath. The zinc coating mass, surface condition and coating adhesion should meet the project specification. It is widely used for hot dip galvanized reinforcing bars requiring higher corrosion resistance in reinforced concrete.
Recommended for:
Bridge decks and piers
Coastal buildings
Marine concrete structures
Seawalls and retaining walls
Parking structures
Wastewater treatment plants
Tunnel lining reinforcement
Infrastructure requiring long service life
ASTM A1094 Continuous Galvanized Rebar
ASTM A1094 covers steel reinforcing bars with zinc or zinc-alloy coatings applied through a continuous hot dip process. This type of galvanized rebar is often selected when consistent coating quality, high productivity and post-galvanizing fabrication requirements are important.
Recommended for:
Large-volume infrastructure projects
Fabricated rebar supply chains
Projects requiring consistent zinc coating
Cut and bent rebar packages
Bridge and highway reinforcement
Concrete structures exposed to corrosive environments
Galvanized Rebar vs Black Rebar
| Item | Galvanized Rebar | Black Rebar |
|---|---|---|
| Surface Protection | Zinc coating | No protective coating |
| Corrosion Resistance | High | Basic |
| Service Life | Longer in corrosive environments | Lower in chloride or marine exposure |
| Initial Cost | Higher | Lower |
| Maintenance Cost | Lower over project life | Higher risk of repair |
| Best Use | Marine, bridge, coastal, infrastructure | General indoor or low-corrosion construction |
Galvanized Rebar vs Epoxy Coated Rebar
| Item | Galvanized Rebar | Epoxy Coated Rebar |
|---|---|---|
| Protection Type | Barrier + sacrificial zinc protection | Barrier protection |
| Jobsite Handling | More tolerant of scratches | Requires careful handling |
| Coating Damage Risk | Zinc can still protect exposed areas nearby | Damaged epoxy may allow localized corrosion |
| Concrete Bond | Good | May be affected by coating condition |
| Typical Use | Marine, coastal, bridge, tunnel, port | Parking structure, bridge deck, moderate exposure |
| Long-Term Cost | Lower maintenance in severe environments | Cost-effective for moderate exposure |
Applications of Galvanized Rebar
Galvanized reinforcing bar is designed for concrete structures where corrosion resistance and long service life are important.
Common applications include:
Bridge decks, piers and highway structures
Marine structures and offshore concrete platforms
Coastal buildings and seaside infrastructure
Ports, docks, wharves and seawalls
Tunnel reinforcement and underground works
Retaining walls and slope stabilization
Wastewater treatment plants
Parking garages exposed to de-icing salts
Concrete foundations in humid environments
Dams, reservoirs and hydraulic structures
Inspection and Quality Control
Available documents:
Mill Test Certificate
EN 10204 3.1 certificate
Zinc coating inspection report
Tensile test report
Packing list
Commercial invoice
Certificate of origin
Third-party inspection report if required
We provide strict quality control for galvanized rebar before shipment. Each order can be inspected according to customer requirements and project standards.
Inspection items include:
| Inspection Item | Purpose |
|---|---|
| Diameter and weight check | Confirm rebar size and theoretical weight |
| Rib height and spacing | Ensure bonding performance with concrete |
| Zinc coating thickness | Verify galvanized coating requirement |
| Coating adhesion test | Check coating bonding quality |
| Surface inspection | Inspect zinc coating uniformity and defects |
| Tensile test | Confirm yield strength and tensile strength |
| Bending test | Check rebar ductility and fabrication performance |
| Bundle marking | Ensure traceability for project delivery |
| MTC 3.1 | Provide material traceability and quality proof |
Packaging and Shipping
Galvanized rebar is packed in export seaworthy bundles to protect the zinc coating during storage, handling and transportation.
Packing options:
Steel strip bundling
Waterproof wrapping
Bundle label and shipping mark
Plastic or metal tags
Custom color marking
Container loading support
Bulk vessel shipment for large projects
Wooden pallet or frame packing if required
Standard delivery options:
20GP / 40GP container loading
Bulk shipment
Break bulk shipment
FOB, CFR, CIF, DDP available according to destination
Why Choose Xi'an Dongmeng Group?
Professional Steel Rebar Supplier
We supply galvanized rebar, black rebar, epoxy coated rebar, threaded rebar and reinforcing steel products for construction and infrastructure projects.
Multiple Standards Available
ASTM, BS, EN, ISO and GB standard products can be supplied according to project drawings and purchasing specifications.
Custom Processing Support
Cutting, bending, threading, bundle marking and project-based packaging can be arranged according to customer requirements.
Strict Quality Inspection
Diameter, weight, zinc coating, surface condition, tensile strength and bending performance can be inspected before shipment.
Export Experience
We support global buyers with seaworthy packing, documentation, container loading and third-party inspection.
Fast Quotation
Send us your required standard, grade, diameter, length, quantity and destination port. Our team will provide a detailed quotation and delivery plan.
How to Order Galvanized Rebar
To get an accurate price, please send us the following information:
| Required Information | Example |
|---|---|
| Standard | ASTM A767 / ASTM A1094 / BS4449 / GB/T |
| Steel Grade | Grade 60 / B500B / HRB400 |
| Diameter | 12mm, 16mm, 20mm, #5, #6 |
| Length | 6m, 12m, 20ft, 40ft |
| Quantity | 25 tons / 100 tons / project quantity |
| Processing | Straight bar / cut length / bent shape |
| Coating Requirement | ASTM A767 Class 1 / project specification |
| Destination Port | Jebel Ali, Dammam, Singapore, Manila, Houston, etc. |
| Documents Required | MTC, coating report, SGS inspection |
FAQ
1. What is galvanized rebar?
Galvanized rebar is reinforcing steel bar coated with zinc by hot dip galvanizing. The zinc coating helps protect the steel from corrosion in reinforced concrete structures.
2. What standards do you supply for galvanized rebar?
We can supply galvanized rebar according to ASTM A767, ASTM A1094, ISO 14657, ASTM A615, BS4449, EN10080 and GB/T standards.
3. What grades are available?
Common grades include ASTM A615 Grade 40, Grade 60, Grade 75, BS4449 B500B, HRB400 and HRB500.
4. What sizes can you supply?
We can supply galvanized rebar from 6mm to 50mm diameter, including common US bar sizes such as #3, #4, #5, #6, #7, #8, #9, #10, #11, #14 and #18.
5. Can galvanized rebar be cut or bent?
Yes. We can provide straight bar, cut-to-length rebar and bent rebar according to project drawings. For galvanized rebar, bending requirements should be confirmed according to the applicable standard and project specification.
6. Is galvanized rebar better than black rebar?
For normal indoor concrete structures, black rebar may be sufficient. For coastal, marine, bridge, tunnel and chloride-exposed projects, galvanized rebar provides better corrosion resistance and longer service life.
7. Is galvanized rebar better than epoxy coated rebar?
Galvanized rebar provides both barrier and sacrificial zinc protection, while epoxy coated rebar mainly depends on barrier protection. In harsh jobsite conditions or severe exposure environments, galvanized rebar is often preferred for durability.
8. Can you provide MTC 3.1?
Yes. We can provide MTC 3.1, zinc coating inspection report, tensile test report and other documents according to customer requirements.
9. What is the MOQ?
MOQ depends on size, grade and coating requirement. For common diameters, trial orders and mixed-size orders can be discussed.
10. How do I get a galvanized rebar price?
Please send the standard, grade, diameter, length, quantity, coating requirement and destination port. We will quote according to your project requirement.
Contact Us
Xi'an Dongmeng Group Co., Ltd.
Galvanized Rebar Supplier for Construction, Bridge, Marine and Infrastructure Projects
Phone / WhatsApp / WeChat: +86 15769214734
Email: office@dongmjd.com
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