Direct from our Tianjin and Tangshan manufacturing bases: precision-straightened, certified alloy and carbon bars configured for immediate export dispatch.
Solid circular cross-section carbon and mild steel round bars with high-uniformity hot-dip zinc plating for aggressive atmospheric applications.
Engineered for machining, hardware fabrication, agricultural linkages, and heavy-duty architectural balustrades with calibrated right-angle radii.
Ribbed rebar engineered for high tensile load concrete anchorage across seismic infrastructural foundations, pile caps, and viaduct construction.
High, medium, and low carbon continuous wire coils optimized for cold heading, fasteners, nail production, and high-tensile wire drawing operations.
Broad-flange structural members delivering high sectional modulus for industrial factory frames, warehouse columns, and civil portal structures.
Standardised channel profiles fabricated with mill and hot-dip finishes, engineered for wall purlins, equipment framing, and secondary structural spans.
Hot-rolled structural angle profiles suitable for power transmission towers, bracing frameworks, modular racking, and perforated assembly assemblies.
Engineered for grounding networks, base plates, industrial grating, and precision-sheared flanges with thick anti-corrosion zinc protection.
Operating from the epicentre of China's primary metal processing cluster in Daqiuzhuang, Jinghai District, Tianjin, and Tangshan bases spanning over 1,500 acres.
Our smart rolling infrastructure combines laser diameter gauge monitoring with automated thermal loops. This guarantees round bar tolerance precision down to ISO h9 and h11 grades while eradicating surface decarb layers and micro-seams.
Being embedded in Daqiuzhuang grants immediate access to blast-furnace hot metal, downstream hot-dip galvanizing baths, automated saw-cutting lines, and direct road links to Tianjin Xingang Port, cutting lead-times by up to 35%.
Spectrometric melt verification, ultrasonic non-destructive testing (NDT), and Charpy impact analyses ensure every single batch meets EN 10204 3.1 certification guidelines with complete chemical heat traceability.
Round bars and long steel solutions manufactured to endure severe cyclic loading, marine environments, and high-temperature stress across tier-one civil and industrial systems.
Supplying quenched, tempered, and normalized round bars for post-tensioned tie rods, expansion joint pins, and marine pier anchorage. Fully compliant with high fracture-toughness requirements.
Supplying peeled and centerless ground carbon alloy bars (AISI 1045, 4140, 4340 equivalents) characterized by low core segregation, optimal machinability, and predictable case hardening.
Hot-dip galvanized, heavy-gauge round bars and fasteners built to withstand chloride stress cracking and marine splash zone degradation across offshore wind monopiles and subsea tie-ins.
Micro-alloyed wear-resistant round stock designed for bucket hinge pins, high-torque hydraulic cylinders, and high-impact structural framework pivots working in abrasive mining conditions.
Facilitating global procurement harmonization. We manufacture to international engineering specifications including ASTM, EN, JIS, and Chinese GB/T codes.
| China (GB/T) | United States (ASTM/AISI) | European Union (EN) | Japan (JIS) | Yield Strength (MPa Min) | Key Metallurgical Profile |
|---|---|---|---|---|---|
| Q235B | ASTM A36 / 1020 | S235JR (1.0038) | SS400 / S20C | ≥ 235 | General carbon steel; exceptional weldability and ductility for cold forming. |
| Q355B (ex Q345B) | ASTM A572 Gr. 50 / 1035 | S355JR (1.0045) | SM490 / S35C | ≥ 355 | High-strength low-alloy (HSLA); enhanced tensile reserve for structural members. |
| 45# (Carbon 45) | AISI 1045 | C45E (1.1191) | S45C | ≥ 355 (T&Q higher) | Medium carbon machinery steel; ideal for induction hardening and forged pins. |
| 40Cr | AISI 5140 | 41Cr4 (1.7035) | SCr440 | ≥ 785 | Chromium alloy steel; high hardenability, structural toughness, and shear yield. |
| 42CrMo | AISI 4140 | 42CrMo4 (1.7225) | SCM440 | ≥ 930 | Cr-Mo alloy; superior creep resistance, torsional strength, and impact fatigue limits. |
Meeting European CBAM compliance and global net-zero commitments through clean electric arc furnaces, micro-alloying, and zero-decarb heat cycles.
By shifting key bar production lines from blast furnaces to hydrogen-ready EAF scrap recycling systems, we reduce embodied emissions to under 0.6 tons of CO2 per ton of finished round bar.
Integrating micro-additions of Vanadium, Niobium, and Titanium to produce ultra-fine ferrite-pearlite matrices. This eliminates secondary quenching stages while hitting Charpy V-notch performance at -40°C.
Deploying AI neural networks that model real-time cooling kinetics on continuous bar mills. This guarantees radial hardness consistency, zero ovality variance, and precise residual stress relief.
HZXY steel components, rounds, profiles, and industrial pipeline networks are certified across iconic civil projects worldwide.
High-tensile structural long sections and tie rods engineered to resist severe coastal salinity cycles and extreme cyclic wind loads.
Structural profiles, heavy roof framing support pins, pressure valves, and custom connection bars for the world's largest single-terminal mega-hub.
Critical long steel bar sections, bracing hardware, and heavy custom plates supplied for the world's most intricate structural lattice.
Established in Daqiuzhuang, Tianjin
Acres of Integrated Production
Tons Annual Steel Throughput
Global Export Destinations
International logistics execution structured to insulate project buyers from price fluctuations, freight bottlenecks, and non-conformance disputes.
Offering FOB (Tianjin/Qingdao), CIF, CFR, and door-to-door DDP project solutions. We support structured trade via irrevocable Letters of Credit (L/C at sight) and flexible T/T milestones.
Every shipment welcomes accredited third-party inspectors (SGS, Bureau Veritas, TÜV) for pre-shipment ultrasonic verification, diameter tolerance confirmation, and tensile/bend testing.
Bars are bundled using high-tensile steel straps with heavy-duty lifting slings, protective plastic end caps, moisture-barrier wrapping, and anti-rust oiling to guarantee zero transit damage.
Clear answers to frequent technical, logistical, and compliance questions asked by overseas engineering buyers.
HZXY is headquartered in the Daqiuzhuang Industrial Zone, Jinghai District, Tianjin, China—one of the largest steel processing clusters globally—with our second production base in Tangshan. Our bulk and container orders load primarily through Tianjin Port (Tianjin Xingang), located just 80 kilometers away, minimizing inland handling damage and domestic trucking charges.
We supply carbon and alloy steel round bars spanning 6mm up to 600mm in diameter across hot-rolled, cold-drawn, and forged finishes. Standard grades cover Q235B, Q355B (formerly Q345B), AISI 1020, 1045, 4140, 4340, 5140, and EN standards (S235JR, S355JR, C45E, 42CrMo4). Full custom lengths up to 12 meters with tight dimensional tolerances are available.
Yes. Every batch leaves our facility with an authentic Mill Test Certificate compliant with EN 10204 Type 3.1, documenting specific chemical heats, ladle analyses, tensile yield, elongation, and impact values. Overseas buyers frequently appoint SGS, BV, or Intertek to witness ultrasonic NDT testing, dimension audits, and container stuffing at our yards.
Yes. We run in-house deep-processing facilities covering cut-to-length band sawing, CNC threading, chamfering, centerless peeling, welding, bending, drilling, and hot-dip galvanizing per ASTM A123 / EN ISO 1461. Steel arrives on your jobsite ready for immediate fabrication or erection, eliminating local secondary processing costs.
Yes. HZXY provides project-package consolidation. Clients frequently combine structural round bars, square bars, H-beams, steel coil, ERW/seamless pipes, and PVC drainage materials into a single purchase order and bill of lading. This lowers freight handling overhead and simplifies customs clearance for global EPC contracts.
You can access our full engineering catalog via our direct portal at Request a Catalog or email our senior technical export desk directly at [email protected]. Detailed drawings and bill-of-material schedules are reviewed within 24 business hours.
Complete your bill of materials through our integrated Daqiuzhuang rolling and pipe manufacturing mills. Standard and non-standard runs maintained in continuous stock.
Hot-rolled and bright cold-rolled carbon steel master coils suited for slitting, tube-forming, deep stamping, and automotive component press lines.
Continuous organic coil coating engineered with high-durability polyester, PVDF finishes, and standard RAL tints for architectural roofing and sandwich panels.
High-spangle, zero-spangle, and passivated hot-dip zinc-coated coils designed for HVAC ducting, purlins, cable trays, and structural forming lines.
High-strength welded circular hollow sections manufactured to BS 1139 / EN 39 standards for heavy shoring and modular construction access systems.
Engineered for hydrocarbon conveying, slurry networks, and high-pressure plant lines with external 3LPE, FBE, and epoxy anti-corrosion linings.
Mill-finish circular hollow sections optimized for structural trusses, space-frame pylons, roll-cages, and high-integrity architectural frameworks.
Cast and forged gate, ball, check, and resilient-seated butterfly valves configured to seamlessly match steel line pipe schedules across MEP networks.
Integrated MEP piping suites spanning rigid PVC drainage conduits, potable water lines, electrical ducting, and matched municipal gas mains.
Submit your tender schedules, technical specifications, and required Incoterms. Our engineering and international shipping teams provide complete landed calculations, mill matching, and full cross-standard certifications within 24 hours.
