Hot-Rolled Carbon Steel Bars - ASTM A615 Grade 60 Structural Rebar

Shandong Kuaima Steel Co., Ltd.

Verified Custom manufacturer 7yrs

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Technical Specifications of Hot-Rolled Carbon Steel Bars

Property	Parameter	Description
Product Name	Hot-Rolled Carbon Steel Bars	Carbon steel bars produced through hot rolling process
Material Grade	ASTM A36 / EN S235JR / JIS SS400 / GB Q235	International grade equivalents for structural carbon steel
Standard Compliance	ASTM A36, EN 10025-2, JIS G3101, GB/T 700	Meets major international standards
Manufacturing Process	Hot Rolling	Rolled at temperatures above recrystallization point
Carbon Content (C)	≤0.26%	Carbon content for structural strength
Manganese (Mn)	0.80-1.20%	Improves hardenability and strength
Phosphorus (P)	≤0.040%	Controlled for improved ductility
Sulfur (S)	≤0.050%	Low sulfur for better weldability
Silicon (Si)	0.15-0.35%	Deoxidizer and strengthening element
Tensile Strength	400-550 MPa	Minimum tensile strength per ASTM A36
Yield Strength	≥250 MPa	Minimum yield strength for structural applications
Elongation	≥20%	Ductility in 50mm gauge length
Diameter Range	6mm - 300mm	Available round bar diameter options
Length Range	6m - 12m or custom	Standard and custom lengths available
Surface Finish	Black, Peeled, Polished	Multiple surface treatment options
Application	Construction, Manufacturing, Machinery Parts	Typical application industries
Certification	EN 10204 3.1, ISO 9001, Mill Test Certificate	Quality certifications provided
Packaging	Bundled with steel straps, waterproof covering	Standard export packaging
MOQ	5 tons	Minimum order quantity

Hot-Rolled Carbon Steel Bars - ASTM A615 Grade 60 Structural Rebar

Hot-rolled carbon steel bars represent a fundamental structural material extensively employed across construction, manufacturing, and infrastructure projects worldwide. These deformed reinforcing bars are produced through a thermomechanical rolling process at temperatures exceeding 1700°F, resulting in superior mechanical properties and cost-effective performance for concrete reinforcement applications. Engineered to meet stringent industry standards including ASTM A615/A615M-20, these bars serve critical roles in commercial buildings, bridges, highways, and heavy industrial facilities where reliable tensile strength and ductility are non-negotiable requirements.

What is Hot-Rolled Carbon Steel Bars?

Hot-rolled carbon steel bars are deformed reinforcing steel products manufactured by heating steel billets above their recrystallization temperature and subsequently passing them through precision rolling mills to achieve specified dimensional tolerances and mechanical characteristics. The thermomechanical processing imparts a characteristic mill scale surface finish and enhanced grain structure, delivering yield strengths ranging from 60,000 psi (Grade 60) to 80,000 psi (Grade 80) per ASTM specifications.

Hot-Rolled Carbon Steel Bars Technical Specifications

Our mill-direct hot-rolled carbon steel bars comply with ASTM A615/A615M-20 Section 6 chemical composition requirements, featuring carbon content of 0.30% maximum for weldable grades. Grade 60 bars exhibit minimum yield strength of 60,000 psi (420 MPa) and tensile strength of 90,000 psi (620 MPa) with elongation values of 9% minimum in 8-inch gauge length per ASTM E8 testing protocols. Available diameter ranges span from #3 (⅜") through #18 (2¼") bars, manufactured to standard lengths of 20 feet, 40 feet, and 60 feet with deformation pattern spacing conforming to ASTM A615 Section 7.4.1 geometry requirements.

Why Choose Our Hot-Rolled Carbon Steel Bars

Our manufacturing facility operates under ISO 9001:2015 certified quality management systems, ensuring consistent metallurgical properties verified through spectroscopic analysis and mechanical testing on every production heat. We maintain comprehensive mill test certificates documenting chemical composition per ASTM E1806 and tensile properties per ASTM A370, with full traceability to original steel melt batches. Strategic warehouse locations across North America enable rapid delivery schedules, while our technical support team provides engineering assistance for rebar detailing, lap splice calculations, and concrete cover specifications aligned with ACI 318 building code provisions.

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Frequently Asked Questions

What is the minimum order quantity (MOQ)?

Our standard minimum order quantity is 20 metric tons per specification and size, though we accommodate smaller quantities for established accounts or multi-grade shipments. Consolidated orders combining multiple bar sizes can meet the 20-ton threshold while optimizing freight economics for your project requirements.

Do you provide material test certificates?

Yes, we furnish certified mill test reports (MTRs) compliant with ASTM A615 Section 15 documentation requirements for every shipment. These certificates include heat-specific chemical analysis results, mechanical property test data, heat number traceability, and third-party inspection stamps when specified. Digital MTR copies are available through our online portal within 24 hours of shipment.

What is the typical delivery time?

Stock sizes (#4 through #11 bars in Grade 60) ship within 5-7 business days from our regional distribution centers. Custom lengths, special grades, or large-volume orders require 3-4 weeks production lead time from mill scheduling. Expedited processing is available for critical-path projects with premium freight arrangements to jobsite locations.

Can you cut to custom sizes?

Our fabrication division provides precision cutting services to project-specific dimensions with tolerances of ±½ inch on lengths up to 60 feet. We also offer value-added services including bar bending per ACI 315 schedules, epoxy coating application meeting ASTM A775 Class A standards, and bundling configurations optimized for crane handling at construction sites.

Get a Competitive Quote for Hot-Rolled Carbon Steel Bars

Request factory-direct pricing on ASTM A615 Grade 60 hot-rolled carbon steel bars tailored to your project specifications. Our sales engineering team delivers detailed quotations within 4 hours, including material costs, fabrication charges, and delivered pricing to your designated jobsite. Contact us today with your bar schedule requirements, delivery timeline, and certification needs to receive mill-competitive rates backed by our quality guarantee and technical expertise in structural reinforcing applications.

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Ratings & Reviews

5.0

Very satisfied

Based on 8 reviews for verified purchases

Supplier service

5.0

On-time shipment

5.0

Supplier service

5.0

Chris Martin

Canada

verified purchases

2025-09-20

Superior Material Consistency for Heavy Industrial Use
Supplied 38 tons of #14 and #18 large-diameter bars (custom 45-foot lengths) for Alberta oil sands processing facility foundations. Mechanical testing verified yield strength at 64,800 psi with excellent ductility characteristics. Their value-added bar bending service per ACI 315 schedules saved us significant fabrication time on-site. Digital MTR portal provided instant access to heat-specific documentation for our QA audits. Material performed flawlessly in -40°C winter placement conditions. Lead time was 26 days from order to Calgary jobsite delivery, meeting our critical construction schedule.

Robert Brown

United Kingdom

verified purchases

2025-10-07

Acceptable Quality with Delivery Delays Resolved
Ordered 12 tons of #4 and #5 bars for residential foundation project. Material quality was satisfactory with MTRs showing compliant chemistry and tensile properties at 91,500 psi. Initial delivery was delayed 8 days due to customs documentation issues, but supplier proactively arranged expedited freight at no extra charge. Bar straightness met tolerance requirements though not as perfect as premium-grade suppliers. Fair pricing compensated for minor inconveniences. Suitable for standard construction applications where budget constraints exist.

William Taylor

Australia

verified purchases

2025-10-25

Solid Performance for Marine Applications
Purchased 16 tons of #9 bars (40-foot standard lengths) for Perth harbor renovation work. Material met AS/NZS 4671 Grade 500N equivalent specifications. Compared quotes from 5 suppliers and found best value here. Bars arrived with proper protective wrapping for sea freight. One bundle had minor surface rust from shipping, but within acceptable limits per ASTM A615 Section 5.2. Technical team provided helpful concrete cover recommendations for our marine exposure conditions. Delivery completed in 23 days to Fremantle port.

Ahmed Al-Hassan

UAE

verified purchases

2025-11-13

Reliable Supply for Repeat Orders
This is our fourth order totaling 28 tons of #7 Grade 60 bars for Dubai high-rise projects. Consistent mechanical properties across all production heats with yield strength ranging 61,000-63,500 psi. Their Dubai warehouse enables 4-day delivery to our Jebel Ali site. Mill certificates include spectroscopic analysis per ASTM E1806 and Charpy impact data. Competitive pricing remains stable despite market fluctuations. We've standardized on this supplier for all concrete reinforcement requirements in our commercial building division.

Carlos Silva

Brazil

verified purchases

2025-11-30

Premium Quality Bars for Highway Infrastructure
Supplied 32 tons of #10 and #11 bars (60-foot lengths) for our São Paulo highway overpass project. Chemical analysis showed excellent weldability with carbon at 0.26% and manganese at 1.15%. Elongation values averaged 11% in 8-inch gauge length, surpassing minimum requirements. Their fabrication division provided precision cutting to our custom 18.5-foot specifications with ±0.3 inch tolerance. ISO 9001 certification and third-party inspection stamps gave our client full confidence in material traceability.

Hans Mueller

Germany

verified purchases

2025-12-08

Good Quality Rebar at Competitive Pricing
Ordered 22 tons of #6 Grade 60 bars (20-foot lengths) for industrial facility construction. Material quality met ASTM A615 specifications with tensile strength at 94,000 psi. Pricing was 8% lower than our regular European supplier. Minor issue with bundle labeling was quickly resolved by their logistics team. Delivery took 19 days, slightly longer than quoted 15 days, but acceptable for our schedule. Would order again for price-sensitive projects.

James Wilson

United Kingdom

verified purchases

2025-12-23

Outstanding Service and Technical Support
Purchased 18 tons of mixed sizes (#5 through #11 bars) for a commercial building foundation. Their engineering team provided detailed lap splice calculations per BS 8110 within 3 hours of our inquiry. All bars came with certified MTRs showing carbon content at 0.28%, perfect for our welding requirements. Delivery was coordinated directly to our London jobsite in 11 days. Customer support responded to our rebar detailing questions within 24 hours throughout the project.

Michael Chen

Singapore

verified purchases

2026-01-07

Excellent Grade 60 Rebar for Bridge Project
Ordered 25 tons of #8 Grade 60 bars (1" diameter, 40-foot lengths) for our MRT bridge expansion project. Mill test certificates confirmed yield strength at 62,500 psi, exceeding ASTM A615 minimum requirements. Deformation pattern spacing was perfectly uniform across all bars. Material arrived in 6 days with complete heat traceability documentation. Surface finish showed minimal mill scale, which simplified our epoxy coating process. This is our second order for structural concrete reinforcement applications.