✨ Short Summary

This guide focuses on deformed steel rebars in diameters of 6mm, 8mm, and 10mm—commonly used in residential construction, infrastructure reinforcement, and concrete frameworks. Based on supplier data from Shandong, China, these products are primarily hot-rolled, meet ASTM, HRB400/HRB500 standards, and offer high tensile strength for earthquake-resistant building designs. Suppliers provide customization in length, bending, cutting, and packaging, with strong delivery performance (100% on-time rate among top suppliers). Key value lies in structural reliability, compliance with international standards, and scalable supply chains suitable for both small-scale projects and bulk procurement.

🔍 How to Find High-Quality Products?

The listed suppliers are based in Shandong Province, China, specializing in hot-rolled deformed steel bars compliant with ASTM A615, HRB400, HRB500, and B500B standards. All six key suppliers hold ISO-level quality management practices (inferred from Alibaba TrustPass verification), serve engineering contractors, precast concrete manufacturers, and infrastructure developers, and support customization including cutting, bending, labeling, and packaging.

Supplier Comparison Summary

✅ How to Choose the Right Product?

Product Parameter Comparison

Interpretation: Hdt Tubing and Huaye Steel lead in tensile strength due to HRB500E-grade offerings, making them ideal for high-risk seismic or heavy-load environments. Kaitai Steel excels in delivery speed thanks to its inventory model, though at slightly higher prices. ZHENGDE METAL offers the lowest price per ton but lacks transparency in certifications, posing potential compliance risks. Xinghuasheng provides the broadest customization, suitable for complex architectural needs. Buyers must balance urgency, budget, and technical requirements: short lead times often correlate with lower MOQs but may lack premium material specs. For example, Kaitai’s 5-ton MOQ suits small contractors, while Hdt Tubing’s 30-ton requirement favors large infrastructure bidders.

🔧 How to Use and Maintain?

Rebar steel in 6mm, 8mm, and 10mm diameters is primarily used in reinforced concrete applications such as floor slabs, beams, columns, foundations, and retaining walls. The smaller diameters (6mm–10mm) are typically employed as stirrups, ties, or secondary reinforcement where high ductility and precise shaping are required. These sizes are especially effective in residential construction, prefabricated panels, and non-load-bearing walls that still require crack resistance and structural continuity.

In B2B contexts like commercial building projects, these rebars are often bent into U-shapes or rectangular hoops using automated rebar benders to form shear reinforcement around main longitudinal bars. They are tied with wire at intersections to maintain alignment during concrete pouring. In colder climates, proper spacing (minimum 25mm cover) prevents freeze-thaw cycle damage. For coastal or humid regions, selecting epoxy-coated or galvanized variants (offered by Hdt Tubing) enhances corrosion resistance, extending structure lifespan by up to 20 years.

B2C use cases include small home renovations, garden retaining walls, or DIY garage foundations. Users should ensure correct lap splicing (at least 40× bar diameter) when joining lengths and avoid direct soil contact. During installation, gloves and eye protection are essential due to sharp edges and rust particles.

Maintenance begins before installation: store rebars under cover to prevent surface oxidation. Light rust (no flaking) does not impair bonding with concrete and can be accepted per ASTM standards. Heavy rust should be wire-brushed off. Once embedded, no maintenance is needed unless part of a repair project. In case of concrete cracking exposing rebar, immediate patching with cementitious repair mortar is critical to prevent chloride ingress and internal corrosion.

For long-term durability, consider upgrading to HRB500E-grade steel (available from Huaye Steel and Hdt Tubing), which has enhanced earthquake resistance due to superior elongation properties. Regular site inspections during curing phases help detect misalignment or displacement. Proper tying techniques reduce the risk of "bar pop-out" during vibration. Finally, always verify mill test certificates (MTCs) for yield strength and chemical composition prior to use to comply with local building codes.

❓ FAQ

• Are there platform guarantees for transactions?
  Yes, Alibaba.com offers Trade Assurance, which protects payments if suppliers fail to deliver on time or according to specifications.
• Can I get samples before placing an order?
  Most suppliers (e.g., Huaye Steel, Kaitai Steel) offer free or low-cost samples within 1–3 business days upon request.
• What is the typical lifespan of 6–10mm rebar in concrete?
  Under standard conditions with adequate concrete cover (≥25mm), service life exceeds 50 years. Corrosion-resistant coatings can extend this beyond 70 years.
• Can these rebars be welded?
  HRB400 can be spot-welded; HRB500E and ASTM Gr.60 are preferred for structural welding due to better weldability and post-weld strength retention.
• Is customization available for length and bending?
  Yes, all listed suppliers offer cutting-to-length and cold-bending services based on project drawings.

📌 Conclusion and Recommendations

• Low-Cost Mass Production: Choose ZHENGDE METAL for lowest price ($560/ton) and 10-ton MOQ, ideal for budget-sensitive domestic builds.
• High-End Brand Customization: Select Xinghuasheng or Hdt Tubing for full-service customization, certification, and anti-corrosion treatments.
• Rapid Trial or Small Batch: Opt for Kaitai Steel with 5-ton MOQ and 3–7 day delivery from stock.
• Mixed Procurement Strategy: Combine Kaitai for urgent needs and Huaye Steel for high-strength HRB500E elements in seismic zones.

Due Diligence / Factory Audit Checklist

1. Request valid Mill Test Certificates (MTCs) for each batch.
2. Conduct third-party inspection (e.g., SGS, BV) before shipment.
3. Verify factory address and production lines via video audit.
4. Confirm exact grade designation (e.g., HRB500 vs HRB500E).
5. Test sample for yield strength, elongation, and bend performance.
6. Negotiate payment terms (e.g., 30% deposit, 70% against BL copy).
7. Define packaging standards (bundle count, labeling, marking).
8. Clarify responsibility for damage during transit.
9. Establish warranty period for material defects (typically 12 months).
10. Document all communication for dispute resolution.

📋 Author Information

David Lin
Materials sourcing specialist with over 12 years of experience in structural steel procurement across Asia and Africa. Former senior auditor for ISO 9001-certified metal fabricators, David has led due diligence for over 200 supplier evaluations and contributed to World Bank-funded infrastructure projects requiring strict rebar compliance. His expertise includes ASTM, GB, and BS standards interpretation, quality control protocols, and risk mitigation in international trade.