Hot-Sale High Carbon Rods, Sections & Coils
Direct from our 1,500-acre Daqiuzhuang and Tangshan processing clusters. Fully certified with traceability from liquid steel heat to packaged coil.
SAE1080 / 82B Hot Rolled High Carbon Wire Rod
Prime wire rod for high-tensile PC strands, suspension ropes, and mechanical springs. Calibrated cooling with fine pearlite microstructures.
SAE1006 / SAE1008 Low Carbon Wire & Rod
Ultra-clean low carbon draw wire for nail making, mesh weaving, annealed binding wire, and precision cold heading applications.
Deformed Steel Rebar (6mm – 12mm) Coils & Bundles
High-yield reinforcing steel for critical infrastructure, precast elements, and marine foundations. High bonding strength with concrete.
Galvanized & Black Solid Plain Round Bar
Smooth carbon steel rounds for shaft turning, anchoring pins, machine fabrication, and structural engineering brackets with HDG options.
ASTM A36 / Q235B Hot Rolled Structural H-Beam
Heavy structural sections for civil columns, multi-story frameworks, high-bay workshops, and bridge load-bearing girders.
Hot Rolled & Galvanized C / U Channel Steel
Versatile structural channels for purlins, equipment bases, architectural bracing, and logistics rack manufacturing.
Q235B / Q355B Hot Rolled Carbon Steel Flat Bar
Precision sheared and rolled flat bars for electrical earthing grids, agricultural tools, industrial grating, and bracket systems.
Hot Rolled & Cold Rolled Carbon Steel Coils
Fine surface finish and tight thickness tolerances for stamping, pipe profiling, automotive stampings, and pressure containers.
Global Industrial Status & Commercial Landscape of High Carbon Wire Rod
Strategic market analysis of wire rod metallurgy, supply chain realignments, and compliance under the European Construction Products Regulation (CPR).
Supply Dynamics & Global Demand
High carbon wire rod (carbon content 0.60% to 0.90% wt) represents the pinnacle of long steel rolling metallurgy. Driven by mega-infrastructure expansions, deep-water oil extraction, and electric vehicle (EV) lightweighting, the global high carbon rod trade exceeds 28 million metric tons annually.
Tianjin Huizhong Xinyu (HZXY) anchors strategic supply routes from Northern China’s manufacturing heartland, leveraging integrated continuous casting and Stelmor controlled-cooling lines to satisfy surging demand across Europe, Latin America, Southeast Asia, and the Middle East.
The CE Marking Imperative (EN 10016 / EN ISO 16120)
In the European Union and international jurisdictions governed by harmonized safety norms, wire rod designated for structural reinforcement, pre-stressing tendons, and life-safety lifting tackle must strictly bear the CE Mark pursuant to Construction Products Regulation (EU) No 305/2011 (CPR).
CE certification mandates rigorous Factory Production Control (FPC) System 2+ audits, microstructural cleanliness evaluations per ASTM E45/ISO 4967, and guaranteed limits on trace elements (P, S ≤ 0.020%, Cu, Cr, Ni ≤ 0.15%), ensuring zero brittle cleavage during multi-hole high-speed wire drawing.
CBAM, Decarbonization & Green Metallurgy
The roll-out of the EU Carbon Border Adjustment Mechanism (CBAM) has fundamentally altered steel procurement economics. Wire rod exporters must provide certified embedded emission footprints (Scope 1, 2, and 3 specific direct and indirect emissions).
HZXY is pioneering green metallurgy transitions via electric arc furnace (EAF) blending, direct scrap utilization, converter waste heat recovery, and hydrogen-enriched blast furnace tuyere injection, lowering verified cradle-to-gate carbon intensity below 1.75 tCO2/t finished wire rod.
High Carbon Wire Rod Metallurgy: Chemical & Mechanical Standards
Comprehensive grade equivalency cross-reference across GB, ASTM, EN ISO, and JIS international industrial codes.
| Steel Grade (GB/T) | ASTM / AISI (USA) | EN ISO 16120-4 (EU) | JIS G3506 (Japan) | Carbon (C %) | Manganese (Mn %) | Tensile Strength (Rm MPa) | Key Downstream Use Cases |
|---|---|---|---|---|---|---|---|
| 65 / 65Mn | SAE 1065 | C66D / C68D | SWRH67A/B | 0.62 – 0.70 | 0.50 – 0.80 | 900 – 1,080 | Upholstery springs, agricultural harrow disks, binder wire |
| 70 | SAE 1070 | C70D / C72D | SWRH72A/B | 0.67 – 0.75 | 0.50 – 0.80 | 950 – 1,120 | Mattress wire, control cables, screen meshes, low-spec ropes |
| 80 / SWRH82B | SAE 1080 / 1085 | C80D / C82D2 | SWRH82B | 0.79 – 0.86 | 0.60 – 0.90 | 1,050 – 1,220 | Prestressed concrete (PC) strands, suspension bridge wire |
| 85 / 82B-Cr | SAE 1086 (Mod) | C86D / C88D | SWRH87B | 0.82 – 0.88 | 0.60 – 0.90 | 1,120 – 1,300 | Ultra-high-strength steel cords, automotive radial tire bead |
| Q235B / 1008 | ASTM A36 / SAE1008 | S235JR / C4D | SS400 / SWRM8 | ≤ 0.20 | 0.30 – 0.65 | 370 – 500 | Construction ties, fasteners, common wire nails, mesh |
High-end wire drawing requires minimizing center carbon and manganese segregation (Index ≤ 1.05 per Krupp/Mannesmann grading). Our Tangshan and Tianjin mill lines utilize dynamic mechanical soft reduction (DMSR) at the final stage of bloom solidification combined with multi-stage electromagnetic stirring (M-EMS). Downstream, continuous 108-meter high-speed wire rod finishing blocks feed into Optiflex Stelmor cooling conveyors, ensuring a pearlite/sorbite ratio greater than 88% with an interlamellar spacing below 0.12 µm. This eliminates hard pro-eutectoid cementite network boundaries, preventing catastrophic cup-and-cone fractures during multi-die drawing without intermediary patenting.
High Carbon Wire Rod Localized Application Scenarios
From deep-sea umbilical cables to mega-bridge main suspension systems: how our high carbon wire rod underpins vital modern infrastructure.
Prestressed Concrete (PC) Strands
Modern civil engineering depends on 7-wire unbonded or bonded PC strands for high-speed rail viaducts, seismic-resistant stadium slabs, and highway overpasses.
- Preferred Grades: SWRH82B, SAE 1080 with micro-alloyed Vanadium.
- Key Properties: Ultra-low stress relaxation (≤ 2.5% at 1,000 hrs, 70% load), minimum tensile yield 1,860 MPa to 1,960 MPa.
- Quality Check: Zero surface longitudinal decarburization deeper than 0.5% of nominal diameter.
Automotive Tire Cord & Bead Wire
Radial tires require high carbon brass-coated steel cord to impart carcass stability, puncture resistance, and sidewall flexibility under extreme rotational centrifugal forces.
- Preferred Grades: C80D2, C82D2, SAE 1086 containing controlled Cr and Ni.
- Critical Requirement: Non-metallic inclusion control (Class A, B, C, D fine inclusions ≤ 1.0; zero TiN brittle cubes > 2 µm).
- Drawing Performance: Capable of cold reduction from 5.5mm rod to 0.18mm filament without breakage.
Suspension Bridge Main Cables & Stay Cables
Long-span suspension and cable-stayed bridges subject wire ropes to combined fatigue tension, corrosive sea winds, and continuous vibrational oscillation.
- Preferred Grades: SWRS82B / C82D with heavy Zn-Al (Galfan) hot-dip protective alloys.
- Fatigue Endurance: Pulsating stress amplitude > 350 MPa tested at 2 × 10^6 cycles without premature failure.
- Traceability: 100% individual heat tracking matching mill test certificates per EN 10204 3.2.
Factory Infrastructure & In-House Finishing Services
Three decades of manufacturing excellence inside Daqiuzhuang, Jinghai District, Tianjin—China’s largest steel agglomeration cluster.
Continuous High-Speed Wire Rolling
Morgan 5th-generation Vee rolling blocks operating at finish speeds up to 115 m/s. Precision laser diameter gauges verify strict out-of-roundness tolerances ≤ 0.15mm.
Pickling, Phosphating & Saponification
Continuous tunnel pickling and automated zinc-phosphate conversion coating reduce wire drawing friction coefficients, drastically improving tool die service life.
Spheroidizing Annealing Furnaces
Nitrogen-protected bell-type annealing furnaces achieve > 92% carbide spheroidization, restoring ultimate ductility for cold heading and complex spring wire coiling.
Export Seaworthy Packaging
Coils tightly compacted with 4 steel radial straps, lined with VCI (Vapor Corrosion Inhibitor) paper and wrapped in heavy-duty HDPE woven moisture-barrier film.
Macro Sourcing Solutions & EPC Risk Mitigation
How HZXY eliminates international procurement friction through multimodal consolidation, third-party inspection, and certified compliance.
One-Order Bill-of-Materials (BOM) Consolidation
Global engineering, procurement, and construction (EPC) contractors routinely face logistical fragmentation when sourcing wire rods from long mills, structural beams from profile mills, and pipelines from tubular manufacturers.
HZXY solves this by unifying section steel (H-beam, channel, angle), deformed rebar, high carbon wire rod coils, flat bars, welded steel pipes, and PVC drainage pipelines into a single commercial contract. Materials are consolidated at our Tianjin Port logistics staging yard, slashing administrative overhead, streamlining customs documentation, and optimizing ocean freight container filling factors.
End-to-End Quality Assurance & Port Logistics
Export reliability is backed by stringent, transparent multi-tier validation. Every heat undergoes non-destructive Eddy Current surface flaw inspection, tensile testing, reverse bend tests, and spectral optical emission chemical analysis before release.
We welcome international third-party inspection agencies appointed by buyers—including SGS, Bureau Veritas (BV), TÜV SÜD, and Intertek—to execute pre-shipment witness testing, dimensional checks, and container stuffing inspections at Tianjin Port, ensuring zero discrepancies between mill test reports and landed cargo.
Trusted on Landmark Mega-Projects Worldwide
Our steel sections, wire rods, plates, and engineered pipelines form the structural backbone of world-renowned architectural landmarks.
Jiaozhou Bay Marine Bridge
High-tensile reinforcement, wire rods, and corrosion-resistant steel sections engineered for aggressive oceanic exposure.
Beijing Daxing Int'l Airport
Complex structural profiles, heavy steel plates, and fluid piping packages supplied for terminal terminal framing.
National Stadium (Bird's Nest)
High-strength structural steel sections and reinforcement bars for iconic long-span spatial lattice construction.
Tongzhou Administrative Center
Structural profiles, pipeline networks, and certified fire protection steel systems for government infrastructure.
National Centre for Performing Arts
Precision-toleranced structural steel plates and high-reliability industrial valves for monumental elliptical dome.
Water Cube (Aquatics Center)
Space-frame steel members and load-bearing profiles fabricated to withstand humidity and high structural loads.
Frequently Asked Questions: High Carbon Wire Rod & Global Sourcing
In-depth responses curated by metallurgical engineers and export directors for overseas procurement managers.
What specific CE certification requirements apply to high carbon wire rods exported to Europe?
Under European Construction Products Regulation (EU) No 305/2011 (CPR), high carbon wire rods intended for structural reinforcement and pre-stressing tendons must satisfy harmonized standard EN ISO 16120 (Parts 1 to 4) or standard EN 10016. Certification requires an accredited Notified Body (NB) to audit the mill’s Factory Production Control (FPC) system under Assessment and Verification of Constancy of Performance (AVCP) System 2+ or System 1+. Every delivered bundle carries a valid CE marking label detailing the Notified Body ID, the Declaration of Performance (DoP) number, heat number, nominal diameter, and mechanical strength class accompanied by an EN 10204 3.1 inspection certificate.
How does HZXY control core carbon segregation in high carbon wire rod grades like SAE 1080 / SWRH82B?
Carbon segregation can cause central martensite or brittle cementite networks that lead to shear breakage during wire drawing. We control this at the continuous casting stage using a three-stage strategy: (1) low superheat continuous casting with liquid temperature controlled within 15–25°C above liquidus; (2) multi-stage dynamic mold and strand electromagnetic stirring (EMS); and (3) Dynamic Mechanical Soft Reduction (DMSR) at the point of final slab/bloom solidification. As a result, center carbon segregation (C_max / C_nom) is kept strictly below 1.05.
What are the maximum allowable decarburization depth limits for cold drawing applications?
Surface decarburization diminishes surface fatigue strength and impairs wear resistance. In accordance with EN ISO 16120-4 and ASTM A510 standards, total decarburization (free ferrite plus transition layer) in our prime high carbon wire rod is guaranteed to be less than 1.0% of the nominal wire diameter (d). For critical automotive tire bead wire and spring wire grades, we achieve total decarburization ≤ 0.5% d (and complete decarburization of zero) through protective inert atmospheres in pre-heating walking beam furnaces.
Can HZXY consolidate high carbon wire rods with H-beams, steel pipes, and valves in one order?
Yes. One of HZXY’s core strengths is complete bill-of-materials consolidation. Because our facilities span 1,500 acres across Tianjin and Tangshan, overseas buyers can consolidate structural section steel (H-beams, I-beams, channels, angles), wire rod coils, rebar, flat steel, ERW/galvanized pipes, and valve assemblies into a single commercial invoice and shipping bill. This single-source approach minimizes supplier vetting overhead, eliminates fragmented shipping charges, and allows custom staging at Tianjin Port.
What testing documentation is delivered with every export shipment?
Every lot ships with a complete Mill Test Certificate (MTC) conforming to EN 10204 Type 3.1 (or Type 3.2 upon request). The MTC includes ladle chemical composition (C, Si, Mn, P, S, Cr, Ni, Cu, Mo, V, Al, N), tensile strength (Rm), reduction of area (Z%), yield strength (Reh), microstructural sorbite percentage, inclusion ratings (ASTM E45), decarburization depth, and grain size rating per ASTM E112.
What are the standard coil weights, dimensions, and seaworthy rust protection methods?
Standard wire rod coils weigh approximately 2.0 to 2.5 metric tons with an inner diameter of 850–900 mm and an outer diameter of 1,200–1,250 mm. For maritime transport, each coil is strapped with 4 circumferential and 4 radial high-tensile steel straps. For export, coils are enveloped in heavy-gauge VCI (Vapour Corrosion Inhibitor) plastic film, wrapped with outer woven polypropylene cloth, and labeled with metal barcodes to resist salt-fog corrosion in hold or container stowage.
What payment terms and delivery Incoterms are accepted for global contracts?
We accommodate standard international trade conventions including FOB Tianjin Port, CFR, CIF, and DDP/DAP depending on client destination. Payment mechanisms include Irrevocable Documentary Letters of Credit at Sight (L/C at Sight) issued by reputable international banks, Telegraphic Transfer (T/T with standard advance deposit and balance against draft shipping documents), and structured trade finance for qualified long-term recurring clients.
Structural Sections, Tubulars, Valves & Coils for Combined Shipment
Bundle your high carbon wire rod procurement with certified building components to maximize container payload and lower landed costs.
Prepainted Steel Coil (PPGI / PPGL) for Roofing
Durable architectural color coatings in custom RAL shades. UV-resistant, anti-chalking formulation for corrugated building panels.
DX51D – DX54D Hot-Dip Galvanized Steel Coil
Continuous hot-dip zinc coating with zero or regular spangle. Excellent deep-drawing formability for HVAC ducts and appliances.
Galvanized Scaffolding Steel Pipe (48.3mm OD)
Certified high-strength scaffolding tubes for falsework, staging towers, and greenhouse frames with uniform zinc coverage.
Industrial Heavy-Duty Anti-Corrosion Coated Pipe
Epoxy, 3PE, and polyurethane coated steel piping for civil transmission lines, chemical effluents, and underground utility service.
In-Stock Black Welded Steel Pipe (ERW / LSAW)
Immediate dispatch inventory of structural black pipes for civil columns, mechanical roller conveyor tubes, and structural frames.
Industrial High-Pressure Pipeline Valves
Cast steel and ductile iron gate, butterfly, globe, and check valves matched to pipe dimension standards for turn-key flow engineering.
PVC-U & HDPE Potable Water Supply Piping
Corrosion-proof, hygienic plastic piping solutions for municipal water supply, agricultural irrigation, and electrical cabling ducts.
Solid Carbon Steel Square Bar (10x10 to 100x100)
Sharp-cornered, hot-rolled solid square bars for ornamental fabrication, fence posts, machinery components, and guide rails.
Request CE Certified High Carbon Wire Rod Quotes
Submit your required steel grade (SAE1070–1085, SWRH82B, C82D2), nominal coil wire diameter, standard (EN, ASTM, GB, JIS), delivery port, and scheduled tonnage. Our international engineering trade team will generate an itemized FOB or CIF quotation with guaranteed chemical bounds and mill dispatch lead times.
Download Mill Specification Guide
Access complete weight tables, microstructural ratings, and CE conformity documentation in our complete engineering product catalog.