High-Performance Structural & Bar Offerings
Verified mill certifications, ISO compliance, and cut-to-length options ready for instant FOB/CIF export quotations.
Galvanized Plain Round Bar
ASTM A36, Q235B & Q355B solid bars with heavy hot-dip galvanized finish for long-life foundation and earthing structures.
Inquire Specifications & Quotes
A36 / Q235 Grade H-Beam
Wide-flange structural columns and heavy girders engineered for civil, commercial, and modular structural envelopes.
Get H-Beam Quotes
Q235B / Q345B Hot Rolled Coil
High ductility carbon coil suitable for slitting, automated laser cutting, stamping, and automated longitudinal welded pipe making.
View Coil Pricelist
Deformed Steel Rebar (6-12mm)
Reinforcing rib bars compliant with GB1499.2, BS4449, and ASTM A615 for seismic civil infrastructure.
Source Rebar Direct
Q235 / Q355 Galvanized Flat Bar
Calibrated 3-60mm edge-trimmed flat steel bars, galvanized for solar brackets, substation earthing, and framing.
Request Flat Bar Quote
Galvanized Scaffolding Pipe
High-tensile zinc-coated circular steel tubes, engineered for EN39 / BS1139 scaffolding configurations.
Scaffolding Tubing Quotes
Industrial Infrastructure Valves
Flanged gate, check, and butterfly valves matching pipeline schedules for seamless fluid and gas networks.
Access Valve Catalog
Galvanized Structural U/C Channels
Parallel flange channel sections designed for building facades, industrial racking, and equipment chassis.
Inquire ChannelsHot Rolled Round Bar: Metallurgy, Standards & ODM Production
A comprehensive engineering analysis of chemical compositions, Thermomechanical Controlled Processing (TMCP), and cross-standard equivalents.
Chemical Deoxidation & Purity
Tianjin Huizhong Xinyu (HZXY) implements LF+VD (Ladle Refining & Vacuum Degassing) clean steel practices. Controlling phosphorus (P ≤ 0.025%) and sulfur (S ≤ 0.015%) minimizes non-metallic inclusions, ensuring high fatigue limits during CNC turning, cold heading, and axial forging.
TMCP Grain Refinement
Through Thermomechanical Controlled Processing, finishing rolling temperatures are maintained within an optimal recrystallization window (850°C-920°C). This suppresses coarse ferrite-pearlite matrix formations and refines ferrite grains to ASTM Grain Size 8 or finer, maximizing Charpy V-notch impact toughness.
Precision Hot Rolling Tolerances
Continuous roughing and precision finishing trains maintain strict ovality and dimensional tolerances conforming to EN 10060 and ASTM A6/A29 Class 1. Diameter variances are restricted within ±0.15mm to ±0.40mm, significantly reducing raw material scrap in downstream processing.
| Standard / Spec | Common Grade | Yield Strength (ReH, MPa) | Tensile Strength (Rm, MPa) | Elongation (A5 %) | Key Application Matrix |
|---|---|---|---|---|---|
| GB/T 700 / 1591 | Q235B / Q355B | ≥ 235 / ≥ 355 | 370–500 / 470–630 | ≥ 26 / ≥ 22 | Structural anchors, wind tower tie rods, infrastructure bolts |
| ASTM / ASME | A36 / A572 Gr. 50 | ≥ 250 / ≥ 345 | 400–550 / ≥ 450 | ≥ 23 / ≥ 18 | Heavy civil framing, bridge pins, OEM industrial chassis |
| EN 10025-2 | S235JR / S355JR | ≥ 235 / ≥ 355 | 360–510 / 470–630 | ≥ 26 / ≥ 22 | European standard construction, machinery shafts, flange rings |
| SAE / AISI | 1020 / 1045 | ≥ 210 / ≥ 310 | ≥ 380 / ≥ 570 | ≥ 25 / ≥ 16 | Precision machining, gear blanks, hydraulic cylinder rods |
China Factory 4.0: Scale, Digitalization & Cost Efficiency
Direct from Tianjin Daqiuzhuang and Tangshan steel production nodes, integrating 1,500 acres of production bases with automated digital scheduling.
10M+ Tons Annual Throughput
Unmatched raw material volume and direct partnerships with upstream blast furnaces eliminate raw material price volatility, granting global buyers wholesale price leverage and guaranteed mill slots during peak seasons.
Tianjin Port Proximity
Situated within Daqiuzhuang, our logistics corridor directly links to Tianjin Port (Xingang). This short trucking radius minimizes inland freight costs, provides buffer storage, and enables fast break-bulk and containerized vessel loading.
Full In-House Secondary Processing
Beyond hot rolling, HZXY maintains in-house deep processing lines: high-precision automated circular saw cutting, beveling, shot blasting, hot-dip galvanizing, threading, and protective anti-rust varnish applications before export loading.
Macro Industry Solutions: Engineering Applications
Serving EPC mega-projects, automotive assembly, and renewable infrastructure with tailored ODM dimensional configurations.
Civil Engineering & Foundations
Reinforcing tie rods, foundation micro-piles, and bridge expansion joints. Verified on landmark infrastructure such as the Jiaozhou Bay Bridge, Daxing International Airport, and National Stadium (Bird's Nest).
Renewable Energy & Power Grids
High-tensile hot rolled round bars configured for solar single-axis torque tube drive shafts, wind turbine foundation anchor cage bolts, and high-voltage transmission tower stay anchors.
Heavy Machinery & Automotive
Medium-carbon round steel bars (AISI 1045, 42CrMo) optimized for hydraulic cylinder tie rods, crankshaft pre-forms, conveyor drive rollers, and heavy mining vehicle axels.
Localized Support, Audits & Regulatory Compliance
Overcoming cross-border procurement bottlenecks through international testing protocols and multi-currency commercial structures.
EN 10204 3.1 & 3.2 MTC
Every heat batch ships with authentic Mill Test Certificates recording chemical spectral data (C, Si, Mn, P, S, Cr, Ni, Cu), tensile yield, elongation, and Charpy impact energy ratings.
Third-Party SGS / BV Audits
We routinely facilitate on-site dimensional inspection, ultrasonic flaw detection (UT), magnetic particle testing (MT), and loading supervision via SGS, Bureau Veritas, or TÜV prior to port departure.
Trade Sanction & Tariff Guidance
Expertise across international customs requirements, Form E, CO, SASO, and tariff classification mitigates anti-dumping duties and regulatory clearance hurdles for destination ports.
Flexible Letters of Credit (L/C)
Supporting corporate procurement workflows with Irrevocable Letters of Credit at sight (L/C), T/T, DP terms, and coordinated forward currency hedging structures.
Technical Roadmap & Future Outlook (2025–2030)
Addressing EU CBAM carbon taxation, hydrogen-based direct reduced iron (DRI) metallurgy, and ultra-high-yield microalloying.
Green Steel & CBAM Compliance
Aligning with European Carbon Border Adjustment Mechanism (CBAM) rules, HZXY is transitioning rolling furnaces to oxy-fuel and natural gas-electric hybrid configurations, providing verifiable EPD (Environmental Product Declaration) carbon footprint tracking per ton of shipped steel.
Microalloying Technology (Nb/V/Ti)
Advancing past traditional carbon-manganese formulations by adopting Vanadium and Niobium precipitation strengthening. This achieves higher yield strengths (≥460-500 MPa) while lowering Carbon Equivalents (CEV ≤ 0.38), unlocking weldability without preheating.
Autonomous AI Surface Inspection
Integrating high-speed laser profilometers and AI-driven machine vision across our continuous hot rolling lines to detect laps, seams, decarburization, and rolled-in scale in real time, delivering consistent zero-defect bar surfaces for automated machining centers.
Global Enterprise Sourcing & Consolidated Logistics
Eliminate project fragmentation. Consolidate long sections, hollow sections, coils, and valves into a single, cohesive bill of materials.
Cross-Category Freight Consolidation
By pairing round bars with structural H-beams, channel profiles, ERW tubing, and PVC pipes within single shipping manifests, buyers optimize container weight-volume ratios and avoid paying LCL freight surcharges.
Marine Seaworthy Export Packaging
Bars are bundled in 2-3 metric ton units utilizing high-tensile steel strapping, lift slings, waterproof plastic wrapping, and anti-corrosive oil spraying to prevent sea-spray oxidation during long ocean transit.
Fast Quotation SLA
Our engineering export desk returns itemized FOB/CIF commercial bids with guaranteed price validity windows within 24 business hours, backed by dynamic billet pricing models.
Enterprise Procurement Q&A (FAQ)
Comprehensive answers to frequent inquiries regarding grades, quality verification, logistics, and ODM capabilities.
Where is HZXY located and which port do you ship from?
Tianjin Huizhong Xinyu (HZXY) is headquartered in the Daqiuzhuang Industrial Zone, Jinghai District, Tianjin, China—one of the largest steel processing clusters in the world—with a second major manufacturing facility in Tangshan. The vast majority of our export cargo is loaded and cleared through Tianjin Port (Xingang), situated less than 80 kilometers away. Other Chinese load ports, such as Qingdao or Shanghai, can be coordinated upon request.
Which steel grades and standards can you supply for round bars?
We supply carbon, structural, and alloy round bars across Chinese GB (Q235B, Q355B, 45#, 40Cr), American ASTM/AISI (A36, A572 Gr. 50, AISI 1020, 1045, 4140), European EN 10025 (S235JR, S355JR, C45), and Japanese JIS (SS400, S45C). Equivalent-grade cross-reference engineering certificates are provided alongside every proforma invoice.
Do you provide Mill Test Certificates (MTC) and allow third-party inspection?
Yes. All outbound steel shipments are accompanied by EN 10204 3.1 Mill Test Certificates detailing heat numbers, chemical composition, tensile yield, elongation, and impact values. Buyers are fully authorized to appoint independent inspection agencies (e.g., SGS, Bureau Veritas, Intertek) to conduct random dimensional sampling and UT testing prior to container dispatch.
Can you cut, weld, chamfer, or galvanize steel to custom sizes?
Yes. Our in-house deep processing lines perform precision band-saw cutting, CNC beveling, end chamfering, hole punching, threading, and heavy hot-dip galvanizing (HDG complying with ASTM A123 / EN ISO 1461). Non-standard lengths up to 12 meters and custom diameter tolerances are available on demand.
Can I combine different structural products in one shipment?
Yes, absolutely. One of HZXY's primary value propositions is multi-product consolidation. You can combine hot rolled round bars, structural H-beams, angle steel, carbon coil, ERW steel pipes, and PVC conduits into one integrated purchase order and shipping container, eliminating multiple vendor friction points.
How can I get the HZXY product catalog and an official quote?
You can visit our dedicated catalog request page at Request a Catalog or directly send your bill of materials (BOM), target grades, and quantity requirements to our export division at [email protected]. Comprehensive commercial offers are returned within 24 hours.
Integrated Steel Portfolio & Profile Matrix
Direct factory supply of structural shapes, long sections, and industrial pipes manufactured to global standards.
Perforated Galvanized Angle Steel
Equal and unequal structural angle sections with pre-punched slotted holes, designed for quick assembly in transmission towers and framing.
Angle Steel Quotes
Double-Coated PPGI / PPGL Coils
Pre-painted galvanized steel coils in extensive RAL colors, engineered with corrosion-resistant primer systems for roll-formed roofing.
PPGI Coil Pricing
SAE1080 / Q235 Hot Rolled Wire Rod
Calibrated 5.5mm-14mm wire rod coils for cold drawing, prestressed anchor wire, industrial fasteners, and mesh welding.
Wire Rod Specifications
Hot Rolled Q235B Carbon Flat Bar
Sharp-edged, mill-finish black flat bar sections suited for engineering fabrication, agricultural machinery, and gratings.
Order Carbon Flat Bar
High-Strength Anti-Corrosion Coated Pipe
3PE / FBE coated spiral and ERW steel pipes manufactured for buried oil, gas, and high-pressure water transmission mains.
Coated Pipe Quotes
DX51D–DX54D Galvanized Steel Coil
Continuous hot-dip zinc-coated coil stock (Z40-Z275) providing deep drawing formability for automotive and ventilation ducting.
Galvanized Coil Quotes
In-Stock Black Welded Steel Pipes
Circular structural hollow sections ready in standard 6m and 12m lengths for general mechanical frameworks and piling tubes.
Check Pipe Inventory
Custom Construction Metal Hardware
Stamped baseplates, connecting cleats, tie rods, and fastener systems prefabricated to project technical drawings.
Inquire OEM AccessoriesAccelerate Your Sourcing With Tianjin Huizhong Xinyu
Obtain mill-direct pricing, consolidated container packing plans, and complete metallurgical data sheets for your upcoming structural build or distribution inventory.