Steel Bars for Construction - ASTM Certified Supplier |

Zhonghe Building Materials Co., Ltd.

Verified Custom manufacturer · 3 yrs ·

China

Customizable Rock-bottom price

$430 1-49 ton Base price

$411 50-99 ton 4.4% off

$402 ≥100 ton 6.5% off

Price validity: subject to market conditions

Supplier's customization ability

Drawing-based customization
Sample-based customization
Full customization

Quantity

Minimum order quantity: 1 ton

Shipping total: To be negotiated

Subtotal of goods US$ 430.00

Start order request

Payment and delivery

Payment:: by contract — deposit, balance after your inspection
Lead time:: confirmed with the quotation
Packaging:: standard export packing
Samples:: available on request

Product details

Technical Specifications of Steel Bars for Construction

Property	Parameter	Description
Product Name	Steel Bars for Construction	Hot-rolled deformed and plain steel bars used in reinforced concrete structures
Material Grade	HRB400 / HRB500 / SD400 / Grade 60	International equivalents: ASTM A615 Gr.60, EN 10080 B500B, JIS G3112 SD400, GB/T 1499.2 HRB400
Standard Compliance	ASTM A615 / EN 10080 / JIS G3112 / GB/T 1499.2	Meets major international construction and structural reinforcement standards
Chemical Composition – C	≤ 0.25%	Carbon content controlled to ensure weldability and ductility
Chemical Composition – Mn	0.60% – 1.60%	Manganese enhances strength and hardenability
Chemical Composition – Si	0.10% – 0.80%	Silicon improves deoxidation and strength
Chemical Composition – P & S	P ≤ 0.045%, S ≤ 0.045%	Low phosphorus and sulfur minimize brittleness and hot-shortness
Tensile Strength	≥ 570 MPa (HRB400) / ≥ 630 MPa (HRB500)	Per GB/T 1499.2; ASTM A615 Gr.60: ≥ 620 MPa; EN B500B: ≥ 540 MPa
Yield Strength	≥ 400 MPa (HRB400) / ≥ 500 MPa (HRB500)	ASTM A615 Gr.60: ≥ 420 MPa; EN B500B: ≥ 500 MPa
Elongation	≥ 16% (HRB400) / ≥ 15% (HRB500)	Minimum elongation at fracture ensuring structural ductility per GB/T 1499.2
Diameter Range	6 mm – 50 mm	Common sizes: Φ6, Φ8, Φ10, Φ12, Φ16, Φ20, Φ25, Φ32, Φ40, Φ50 mm
Length	6 m / 9 m / 12 m (customizable)	Standard mill lengths; custom cutting available upon request
Surface Finish	Deformed (ribbed) / Plain round	Deformed bars provide superior bond strength with concrete; plain bars for stirrups and ties
Application	Reinforced concrete, bridges, high-rise buildings, tunnels, foundations	Widely used in civil engineering, infrastructure, and residential construction projects
Certification	ISO 9001, CE Marking, BIS, SGS, Mill Test Certificate (MTC)	Third-party inspection and material traceability documentation available
Packaging	Bundled in 2–5 MT bundles, steel-strapped	Seaworthy packing available; bare or with waterproof wrapping per buyer requirement
MOQ	25 MT per size	Mixed container orders accepted; bulk shipment negotiable for large projects

Steel Bars for Construction - ASTM Certified Supplier

Steel bars for construction serve as the structural backbone of modern infrastructure, delivering the load-bearing reliability that engineers and contractors depend on worldwide. From high-rise residential towers to highway bridges and industrial facilities, these reinforcing elements provide tensile strength precisely where concrete alone falls short. As an ASTM-certified supplier, we manufacture and distribute a comprehensive range of construction steel bars that meet the most demanding international standards, including ASTM A615, ASTM A706, BS 4449, and GB/T 1499.2. Our mill-direct supply chain ensures consistent material traceability, competitive pricing, and on-time delivery to project sites across North America, Southeast Asia, the Middle East, and beyond. Whether your project requires deformed rebar, plain round bars, or specialty alloy variants, our technical team is ready to match the right grade and specification to your exact structural requirements, helping you maintain quality control from procurement through final inspection.

Steel bars for construction supplier

What are Steel Bars for Construction?

Steel bars for construction are hot-rolled or cold-drawn steel products designed to reinforce concrete structures, resist tensile and shear forces, and provide ductility under seismic or dynamic loading conditions. Available in deformed (ribbed) and plain round profiles, they are produced from carbon steel or low-alloy steel with yield strengths typically ranging from 300 MPa (Grade 40) to 500 MPa (Grade 75) per ASTM A615 classification, making them essential components in foundations, columns, beams, slabs, and retaining walls.

Steel bars for construction manufacturer

Steel Bars for Construction Manufacturing Process

Production begins with high-quality steel billets charged into a continuous rolling mill heated to approximately 1,150–1,250°C. The billets pass through a series of roughing, intermediate, and finishing rolling stands that progressively reduce cross-section and impart the characteristic surface deformation pattern. Controlled cooling on the cooling bed governs the final microstructure, achieving the target mechanical properties. Each coil or straight bar length then undergoes dimensional inspection, tensile testing, and chemical analysis before mill certification is issued.

Steel Bars for Construction Technical Specifications

Our standard product range covers diameters from 6 mm to 50 mm in lengths of 6 m, 9 m, and 12 m, with custom cutting available. Key mechanical benchmarks include a minimum yield strength of 420 MPa, ultimate tensile strength of 620 MPa, and elongation at break ≥ 9% for Grade 60 per ASTM A615. Carbon equivalent is maintained at ≤ 0.55% to ensure field weldability. Surface rib geometry conforms to ASTM A615 deformation requirements, with relative rib area ≥ 0.057 for superior concrete bond performance. All bars carry heat number traceability and mill test reports (MTRs).

Get a Competitive Quote for Steel Bars for Construction

Partner with a trusted ASTM-certified supplier that delivers mill-direct rates, consistent quality, and responsive logistics. Submit your project specifications today and receive a detailed quotation within 24 hours, backed by full documentation support including MTRs, chemical analysis reports, and third-party inspection coordination.

24/7 customer support available
Free samples for quality evaluation
Competitive pricing for bulk orders
Professional technical consultation

Contact us today to get your free quote within 24 hours!

Steel bars for construction wholesale

Ratings & Reviews

4.5

Based on 8 reviews

5 5

4 2

3 1

2 0

1 0

Robert H.

United States

2025-02-02

Material quality fine, initial paperwork mix-up resolved

We ordered 50 tons of 19 mm ASTM A615 Grade 60 rebar for a commercial slab project in Atlanta. The bars themselves tested correctly – yield at 430 MPa, elongation at 10% – and concrete bond performance on site has been good. However, the initial shipment documentation included MTRs referencing a different heat number than the bundles received, which flagged in our QC review and stalled acceptance for three days. After escalating, the supplier issued corrected documentation within 24 hours and clarified the administrative error. Issue fully resolved, but it added stress to our schedule. Quality control on paperwork should match the material quality.

Liam O.

Australia

2025-02-24

Competitive pricing on Grade 500N rebar, documentation very good

Purchased 75 tons of 16 mm and 20 mm deformed rebar to AS/NZS 4671 Grade 500N for a multi-residential development in Perth. We requested cross-certification against ASTM A615 Grade 60 and the supplier provided a detailed equivalency letter alongside the standard MTRs, which our engineer accepted. Unit pricing was competitive for the volume, and the free sample bars we evaluated before committing matched the full shipment quality. Lead time of 38 days was reasonable. Slightly docking one star because the initial quotation omitted freight insurance details, but this was corrected promptly when flagged.

Sophie M.

United Kingdom

2025-03-18

Good value on BS 4449 rebar, minor lead time variance

Ordered 140 tons of 10 mm and 20 mm BS 4449 B500B deformed bars for a retaining wall scheme in Leeds. Material quality was solid – tensile strength averaged 580 MPa and elongation was consistently above spec. Pricing came in around 6% below our usual UK distributor, which is meaningful on this volume. The only reason for four stars rather than five is that the confirmed delivery window shifted by four days mid-transit due to port congestion, though the team communicated proactively and we adjusted our site schedule without major disruption. Would order again.

Know your supplier

Zhonghe Building Materials Co., Ltd.

3 yrs on Sinoali.com

Located in China

Company information More goods

FAQ

Q: What grades of rebar do you supply?

A:We mainly supply HRB400, HRB500, A615 Grade 60, B500B and other high-strength deformed steel bars.

Q: What diameters are available for your rebar?

Q: Can you provide mill test certificates (MTC) for rebar?

Q: Do you accept customized lengths for rebar?

Q: Can you supply deformed steel bars for concrete reinforcement?

Q: What packaging is used for steel rebar?

Product display

Zhonghe Building Materials Co., Ltd. is a professional industrial manufacturer and supplier focusing on high-quality building materials. We specialize in a full range of steel building materials, covering reinforcing steel bars, galvanized steel products, corrugated steel sheets, structural steel pipes and other related metal construction materials.

Equipped with advanced production lines and precision testing equipment, the company implements strict full-process quality control and holds authoritative industry qualification certificates. We maintain sufficient spot inventory, adopt standardized export packaging, and ensure stable delivery cycles to meet global customer demands.

Our products are widely applied in construction engineering, machinery manufacturing, shipbuilding, energy and infrastructure projects. Adhering to the principle of quality first and customer-oriented service, we are committed to providing reliable building material solutions and long-term stable cooperation for global clients.