ENGINEERED TITANIUM PORTFOLIO
Specialized Titanium Alloys, Square Blocks & Flow Control Components
Direct shipment from Jovzi Titanium Industry Co., Ltd. in Baoji, China's Titanium Valley. Fully certified with 100% material traceability, EN 10204 3.1 mill inspection certificates, and ultrasonic flaw detection.
Titanium GR5 Ti-6Al-4V Forged Block ASTM B348 Standard
Titanium Flange Ball Valve 150 LB / 300 LB Water Oil Gas Ends
American Standard High Pressure Titanium Ball Core Valve Spares
Gr2 Anodizing Titanium Basket With PP Anode Bags for Plating
Gr2 Gr5 Titanium Bar 25mm / 35mm / 45mm / 65mm x 1000mm
Titanium Gr1 Gr2 V-Band Flange Clamps 2"–5" Exhaust Coupling
High Elasticity Thin Titanium Solid Structural Rods & Wires
Engineering Guide: Precision Titanium Square Bars & Rectangular Billets
For heavy machining facilities, thermal reactors, and structural fabrication projects across the Pyongyang metropolitan zone and nearby industrial satellites (such as Nampo and Hungnam chemical corridors), selecting the proper alloy grade, forging ratio, and thermal conditioning is decisive for equipment longevity. Titanium square bars (also categorized as square billets, square rods, and blocks) manufactured by Jovzi Titanium are melted from 100% virgin grade 0 vacuum-arc double or triple-melted (VAR) titanium sponge. This ensures that interstitial impurities including Carbon (C), Nitrogen (N), Hydrogen (H), and Oxygen (O) remain strictly within ASTM B348, AMS 4928, and ASME SB348 tolerances.
Heavy Forging & Fiber Densification
Each titanium square billet undergoes multi-directional open-die forging using hydraulic presses exceeding 2,500 metric tons. A forging reduction ratio of > 4:1 completely crushes as-cast dendritic microstructures, creating ultra-fine equiaxed grains and eliminating internal micro-voids.
Passivating Rutile Oxide Barrier
Titanium spontaneously creates a stable, protective TiO₂ oxide film when exposed to oxygen or moisture. This provides near-total resistance to wet chlorine gas, chlorate solutions, nitric acid, ferric chloride, and industrial cooling seawater, avoiding pitting and stress cracking.
CNC Machining Efficiency & Squareness
Supplied in milled, cold-drawn, or precision-planed conditions with surface roughness Ra ≤ 1.6 μm. Side-to-side perpendicularity and flat faces minimize setup time and tool wear when indexing square bars for multi-axis CNC milling centers.
Comparative Engineering Data: Titanium Square Bar Grades
| Alloy Grade & UNS | Yield Strength (Rp0.2, MPa) | Tensile Strength (Rm, MPa) | Elongation (A5, %) | Hardness (HBW / HRC) | Typical Heavy Industry Applications |
|---|---|---|---|---|---|
| Gr1 (UNS R50250) CP Grade 1 |
≥ 170 | ≥ 240 | ≥ 24 | 120 HBW | Deep draw stampings, electrolysis anode hooks, acid-bath clad plates, low-stress chemical vessels. |
| Gr2 (UNS R50400) Standard CP Industrial |
≥ 275 | ≥ 345 | ≥ 20 | 160 HBW | Pyongyang chemical synthesis, urea autoclaves, heat exchanger tube sheets, valve manifolds, electroplating baskets. |
| Gr5 (UNS R56400) Ti-6Al-4V α+β |
≥ 828 | ≥ 895 | ≥ 10 | 30 - 34 HRC | High-stress structural frames, high-pressure pump shafts, turbine blades, centrifuge components, military-grade brackets. |
| Gr7 (UNS R52400) Ti-0.15Pd Enhanced |
≥ 275 | ≥ 345 | ≥ 20 | 165 HBW | Hydrochloric acid (HCl), hot sulfuric acid streams, high-temperature brine, marine desulfurization plants. |
| Gr12 (UNS R53400) Ti-0.3Mo-0.8Ni |
≥ 345 | ≥ 483 | ≥ 18 | 190 HBW | Crevice corrosion prevention in high-temperature chlorides (> 250°C), steam condenser support blocks. |
* Values indicate minimum mechanical standards at room temperature (20°C) in annealed condition per ASTM B348 / ASME SB348 specifications. Jovzi supplies certified test results from BaoTi Test Center for every mill production heat.
LOCALIZED APPLICATION SCENARIOS
Optimizing Titanium Square Bars for Industrial Enterprises in Pyongyang
Heavy manufacturing, fertilizer synthesis, power generation, and chemical process plants operating within Pyongyang and connected industrial hubs require reliable structural and flow-control materials that operate without catastrophic failure under corrosive reagents and cyclic thermal stress.
Conventional 316L and 904L stainless steels frequently suffer severe pitting and stress corrosion cracking in high-chloride, acidic, or wet chlorine media. Jovzi's precision-forged titanium square bars are routinely machined into the following mission-critical components:
- Fertilizer & Petrochemical Synthesis Autoclaves: Used for machining heavy flange collars, reactor nozzle blocks, and stirrer shafts where nitric and sulfuric acid corrosion is present.
- Chlor-Alkali & Chemical Electrolysis Cells: Precision-milled Gr2 square bars serve as primary busbar connectors, cathode bar supports, and dimensionally stable anode (DSA) structural frames.
- Metallurgical Smelting & Hydrometallurgy Plants: Non-ferrous metal extraction relies on titanium square bars for autoclave internal structural braces and leach agitator components.
- Thermal Power Stations & Cooling Water Systems: Support bars and tube sheets for condensers using estuarine or brackish water from the Taedong River basin.
Standard Dimensional & Forging Tolerances
Jovzi Titanium maintains high CNC accuracy across all hot-forged, hot-rolled, and cold-drawn square profiles:
Cross-Section Sizes:
10 mm × 10 mm up to 450 mm × 450 mm
Standard Cut Lengths:
500 mm, 1000 mm, 3000 mm, 6000 mm, or Custom Cut
Dimensional Tolerance:
h9, h11, or ±0.5mm (Cold-drawn / Planed)
Straightness:
≤ 1.0 mm per meter (≤ 0.1%)
Corner Radius (R):
Sharp 90° square corner or R1.0 - R3.0 mm
Surface Delivery:
Pickled, Machined Bright, Polished Ra ≤ 1.6μm
INDUSTRIAL TRENDS & MARKET DYNAMICS
Regional Trends in Titanium Material Upgrades
Economic planning and factory modernizations in the capital and coastal industrial regions emphasize longevity, lower downtime, and material upgrades from ordinary carbon and stainless steels to refractory and corrosion-resistant alloys.
Transition to Long-Life Autoclave Internals
Industrial chemical processing is shifting away from rubber-lined or glass-lined steel vessels toward solid titanium Gr2 and Gr12 square bar components. The upfront investment in titanium is recouped through reductions in maintenance and shutdown times.
Rigorous Traceability & Material Testing
Procurement offices require comprehensive EN 10204 3.1 certification. Independent testing from third parties like the BaoTi Test Center verifies elemental chemistry, mechanical tensile limits, and grain size conformity before dispatch.
Demand for Near-Net-Shape Billets
To reduce cutting chips and save CNC machining hours, buyers increasingly order customized square bar dimensions cut directly to length, minimizing material scrap rates for large component fabrication.
MANUFACTURING AUTHORITY
Why Sourcing from Jovzi Titanium Gives You a Competitive Edge
Headquartered in Baoji—widely recognized as China's "Titanium Valley"—Jovzi Titanium Industry Co., Ltd. has delivered precision titanium materials, ASTM B381 forgings, ASME B16.5 flanges, and industrial parts since 2006. With an engineering team including 4 senior and 5 intermediate metallurgical engineers, we maintain strict quality control from raw sponge to final packaging.
01
Raw Sponge Selection
We use exclusively 0A and 0-grade titanium sponge, verifying impurity concentrations (Fe ≤ 0.05%, O ≤ 0.07%, C ≤ 0.02%) before vacuum arc remelting.
02
Multi-Ton Forging
Forging presses exceeding 2,500T refine grain boundaries through multiple thermal-deformation cycles, ensuring high internal consistency across large billets.
03
Stress-Relief Annealing
Computerized vacuum heat treatment eliminates internal residual stress, preventing deformation or distortion during subsequent CNC wire-cutting or milling.
04
Ultrasonic Testing (UT)
100% of bars undergo ultrasonic testing per AMS 2631 Gr.A/AA or ASTM B348 standards to detect interior defects, voids, or non-metallic inclusions.
05
Precision Finishing
Modern CNC planers and grinders ensure precise dimensions with tight tolerances (±0.2mm to ±0.5mm) and uniform surface roughness.
06
Export Packaging
Billets are wrapped in moisture-proof barrier foil, cushioned, and crated in heavy fumigated plywood cases suitable for cross-border transit.
PROCUREMENT KNOWLEDGE BASE
Frequently Asked Questions by Industrial Buyers
Practical answers regarding metallurgy, standards compliance, minimum order quantities, and international logistics for cross-border procurement.
What standard specifications do Jovzi Titanium square bars conform to?
Our titanium square bars and rectangular billets are manufactured to ASTM B348 (standard specification for titanium and titanium alloy bars and billets), ASME SB348 (for pressure vessels and boiler code applications), AMS 4928 (aerospace Ti-6Al-4V bars and forgings), and ASTM B381 (forgings). Custom sizing can also be supplied per buyer technical drawings.
How do you verify material authenticity and mechanical properties?
Every shipment includes an EN 10204 3.1 Mill Test Certificate (MTC) detailing melt heat numbers, exact chemical composition (C, O, N, H, Fe, and alloy elements), tensile strength (Rm), yield strength (Rp0.2), and elongation percentage. Customers may also request independent third-party test reports issued by the BaoTi Test Center.
What is the difference between Grade 2 and Grade 5 square bars for machinery construction?
Grade 2 is commercially pure (CP) titanium with moderate tensile strength (≥345 MPa), high weldability, and resistance to general chemical attack. Grade 5 (Ti-6Al-4V) is an α+β alloy with substantially higher tensile strength (≥895 MPa) and yield strength (≥828 MPa), making it ideal for high-stress structural components, rotating shafts, and pressure manifolds.
What are the minimum order quantities (MOQ) and production lead times?
For standard stock sizes (such as 25×25 mm, 50×50 mm, 80×80 mm, 100×100 mm in Gr2 and Gr5), the MOQ is 1 kg. Custom-forged or non-standard dimensions typically require 50 kg to 100 kg. Standard sizes can ship within 3–7 business days; custom forgings require 15–25 business days.
Which logistics arrangements and incoterms are supported?
We support standard international trade terms including FOB, CIF, CFR, CIP, FCA, CPT, and EXW. Cargo can be dispatched via sea freight (FCL/LCL), air cargo, rail transport, or international express couriers, packed in secure, reinforced wooden cases with anti-scratch lining.
Can you machine square bars into finished parts according to technical drawings?
Yes. Our Baoji facility includes CNC machining centers, wire EDM, lathes, and thread rolling systems. In addition to raw square bars, we produce fully finished parts including titanium valve balls, flanges, forged rings, manifold blocks, and custom fasteners from customer-provided PDF, DWG, or STEP files.
Request an Engineering Quote for Titanium Square Bars
Consult with our metallurgists in Baoji, China. Submit your required alloy grade, square dimensions, tolerance profile, and destination port to receive a comprehensive technical proposal within 8 hours.
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