GR5 Titanium Screws Torx Round Head Bolts
- StandardDIN/ISO Metric Fine
- MaterialGrade 5 (Ti-6Al-4V)
- Drive StyleAnti-Slip Torx T25/T30
- Yield Strength≥ 828 MPa
Standardized & Bespoke Fastening Solutions
Featured Titanium Fasteners for High-Stress Operating Environments
Milled and rolled in Baoji, China—Titanium Valley—our Grade 5 (Ti-6Al-4V) and Grade 2 commercial pure hardware provide unprecedented strength-to-weight ratios, cryogenic resistance down to -50°C, and complete immunity to chemical corrosion.
DIN912 Titanium Hexagon Socket Head Cap Screws
- StandardDIN 912 / ISO 4762
- DiameterM0.8 – M24 Metric
- Tensile Strength895 – 1000 MPa
- FinishPlain CNC Machined
Titanium Flat Head Countersunk Screws
- Thread ProfileM1.6 – M12 Micro/Macro
- Head StyleCountersunk Flush Profile
- ExecutionPrecision Cold Forged/CNC
- Corrosion ClassMarine / Heavy Industrial
GR5 Titanium High-Strength Wheel Lug Bolts
- FitmentUNC / Metric Heavy Fleet
- Fatigue LifeTested > 2×10&sup6; Cycles
- Weight Reduction≈ 44% vs Alloy Steel
- Seat TypeConical / Ball Seating
Titanium Wheel Studs & Lug Bolts M14x1.5
- Pitch SizesM12×1.25 / M14×1.5
- Surface TechMicro-Polished / PVD Coated
- HardnessHRC 32 – 38
- ComplianceAutomotive ISO/TS Certified
DIN 6923 Titanium Hex Flange Nuts
- StandardsDIN 6923 / EN 1661
- Sizes AvailableM4, M5, M6, M8, M10, M12
- Base DesignSmooth or Serrated Flange
- Galling PreventionDry Lubricant / Anodized
ISO 4032 Heavy Hex Industrial Titanium Nuts
- DimensionsM3 to M20 In-Stock
- Alloy TypesCP Grade 2 / Alloy Grade 5
- Testing100% Go/No-Go Thread Gauge
- AvailabilityFast Bulk Warehouse Dispatch
M8 Anodized Torx Star Titanium Fastener
- Thread ClassRolled Threads 6g Precision
- Surface TreatPVD Burnt Blue/Gold/Rainbow
- ApplicationVibration Assembly & Calipers
- Thermal Range-250°C to +400°C
Need Drawing-Based Custom Fasteners in Erdenet?
Whether you require bespoke dimensions, custom thread pitches for retrofitted mining slurry pumps, or high-tensile flanged assemblies, our engineering department provides DFM evaluations within 24 hours.
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Established in Baoji
100+
CNC & Thread-Rolling Units
±0.01mm
Machining Tolerance Precision
100%
Ultrasonic & PMI Inspected
Engineering Whitepaper & Metallurgical Insight
Engineering Titanium Fasteners for Extreme Northern Climates & Heavy Industries
Erdenet presents one of the most punishing industrial operating environments on earth. Sited around the colossal Erdenet Mining Corporation (EMC) open-pit copper-molybdenum porphyry deposit, mechanical fasteners face the dual assault of hyper-abrasive mineral slurries, acid leaching chemistry, and brutal sub-zero continental temperatures.
Sub-Zero Ductility vs. Steel Embrittlement
During Erdenet winters, ambient temperatures plunge below -35°C to -45°C. Structural carbon steel and standard Grade 8.8/10.9 structural bolts cross their ductile-to-brittle transition temperature (DBTT), leading to catastrophic notch-brittleness and shear snapping under dynamic equipment vibration. In stark contrast, Ti-6Al-4V Grade 5 maintains high fracture toughness (K1c) and low-temperature elongation, eliminating brittle field failures across heavy transport, dump truck suspensions, and primary jaw crushers.
Inert Passivation in Aggressive Mining Reagents
Erdenet's copper extraction circuits—including froth flotation cells, heap leaching, solvent extraction-electrowinning (SX-EW), and thickeners—operate in contact with sulfuric acid (H2SO4), sulfur dioxide, and chloride salts. Titanium forms an instantaneous, self-healing rutile (TiO2) oxide film within milliseconds of mechanical abrasion. Grade 2 CP and Grade 5 titanium bolts show near-zero corrosion rates (<0.005 mm/yr) where 316L stainless steel exhibits acute pitting, intergranular attack, and crevice corrosion.
Rotational Inertia & Unsprung Mass Optimization
With a density of 4.43 g/cm³ compared to steel's 7.85 g/cm³, substituting Grade 5 titanium lug bolts, drive shaft flanges, and transmission linkages achieves an instantaneous 44% reduction in reciprocating mass. For mining haul trucks, overland logistics fleets, and high-frequency vibratory screening machines across the Erdenet-Bulgan corridor, lower unsprung weight substantially reduces bearing bearing wear, dampens mechanical harmonics, and preserves hydraulic dampers.
| Performance Characteristic | Commercial Grade 2 Titanium | Ti-6Al-4V Grade 5 Fastener | Grade 8.8 Structural Steel (Ref.) | AISI 316L Stainless Steel |
|---|---|---|---|---|
| Tensile Strength (Rm) | ≥ 345 MPa | ≥ 895 – 1000 MPa | 800 – 830 MPa | 500 – 700 MPa |
| Yield Strength (Rp 0.2) | ≥ 275 MPa | ≥ 828 MPa | 640 MPa | 220 MPa |
| Density (ρ) | 4.51 g/cm³ | 4.43 g/cm³ | 7.85 g/cm³ | 8.00 g/cm³ |
| Charpy Impact @ -40°C | Maintains High Ductility | Stable (~15-18 J) No DBTT Transition | Severely Degraded (Notch-Brittle) | Maintains Austenitic Ductility |
| Resistance to Copper Slurry Chlorides | Immune (< 0.002 mm/yr) | Superior (Passivated TiO2) | Catastrophic Oxidation | Prone to Stress Corrosion Cracking |
| Magnetic Permeability (μr) | 1.00005 (Non-Magnetic) | 1.00005 (Non-Magnetic) | Ferromagnetic (> 100) | 1.005 – 1.015 |
Localized Industrial Engineering
Critical Industrial Applications Across Erdenet's Metallurgy & Transport Hub
Erdenet is Mongolia's primary metallurgical powerhouse, driven by massive continuous operations where an hour of unplanned conveyor or ball mill downtime costs thousands of dollars. Industrial procurement directors and maintenance heads in the Orkhon Valley are systematically swapping high-maintenance carbon steel for specialized non-ferrous titanium fasteners across key sub-assemblies:
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Slurry Pumps, Hydrocyclones & Leaching Vats: Ti Gr2 and Gr5 DIN 933 hex bolts fastened to composite rubber and polymer wear-liners resist abrasion from ground quartz-chalcopyrite rock slurries and acidic process water without thread-head erosion.
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Open-Pit Heavy Transport & Mining Haulers: Heavy-duty Grade 5 titanium wheel studs and custom flanged chassis fasteners absorb cyclic shock loading on corrugated frozen haul roads between pits and concentrators.
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High-Power Magnetic Separation & Smelter Equipment: Grade 5 titanium's non-magnetic characteristics prevent electromagnetic induction heating and arcing inside high-voltage motor frames, transformer bushings, and electrowinning cell connections.
Regional Market Trajectory
Emerging Trends Reshaping Fastener Procurement in Erdenet
1. Modernization & Western Equipment Retrofits
As legacy Soviet-era concentrator hardware is transitioned to modern Western flotation machinery (such as Metso, FLSmidth, and Outotec units), plant engineers are requiring fasteners built strictly to dual-certified metric ISO/DIN and ANSI/ASME standard geometries with traceable heat numbers.
2. Total Life-Cycle Costing (LCC) Over Upfront Price
Mining procurement controllers in Orkhon Province have increasingly adopted Life-Cycle Cost procurement frameworks. Replacing a rusted steel pump casing bolt every 8 weeks in sub-zero winds costs 15x more in labor and lost production than installing an indestructible Grade 5 titanium fastener that lasts 10+ years maintenance-free.
3. Rapid Cross-Border Supply Corridor (Erlian-Zamiin Uud)
Supply chain vulnerability is the biggest bottleneck in Northern Mongolia. Direct factory dispatch from Baoji via the Trans-Mongolian rail and road trunk lines allows Erdenet mining operators to bypass secondary middlemen markups, securing delivered batches under DDP/CPT terms in days rather than months.
Baoji Factory Direct Authority
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Why Direct Sourcing from Yevzo Titanium Gives You a Competitive Edge
Headquartered in the Fenghuang High-Tech Industrial Zone of Baoji, Shaanxi, Yevzo Titanium Metal Co., Ltd. has led precision titanium manufacturing since 2013. Baoji produces over 60% of China's titanium ingot and bar capacity. By eliminating tier-two distributors and export brokers, we give mechanical engineering teams in Erdenet direct factory access to mill-certified bar and custom CNC machined components.
Full Material Traceability
Every batch ships with authentic EN 10204 3.1 Mill Test Certificates detailing chemical composition and mechanical properties.
Precision Thread Rolling
We utilize cold thread-rolling machines rather than cut threads, preserving grain boundary flow and boosting fatigue limits by >30%.
Comprehensive Surface Finish
Available in plain CNC, ultra-vibratory polished, electrolytic micro-arc anodized (gold, burnt blue, purple, black), and anti-galling PVD.
Diverse Trade & Currencies
Accepting flexible delivery (FOB, CFR, CIF, CPT, DDP, Express) and payments via T/T, L/C, PayPal, Credit Card in USD, EUR, and CNY.
Purchasing & Engineering FAQ
Frequently Asked Questions by Technical Buyers in Erdenet & Orkhon
Clear engineering clarifications, installation best practices, and commercial delivery terms for industrial enterprise buyers.
How do Grade 5 titanium bolts prevent catastrophic shearing during extreme Erdenet winters (-40°C)? +
Ferritic carbon steels and low-alloy structural steels experience a distinct Ductile-to-Brittle Transition Temperature (DBTT) well above -40°C. In sub-zero continental conditions like those found in Erdenet, impact energy absorption in steel collapses, meaning vibrations from heavy equipment, excavators, and haul trucks can cause immediate brittle fracture. Ti-6Al-4V Grade 5 has a Close-Packed Hexagonal (CPH) α plus Body-Centered Cubic (BCC) β microcrystalline structure that exhibits no sharp DBTT down to cryogenic temperatures (-196°C). Yield strength and tensile strength actually increase slightly in cold weather while maintaining adequate impact toughness (>15 J/cm²), making it virtually immune to winter freeze-cracking.
What measures must be taken to prevent galling (thread seizing) when assembling titanium fasteners? +
Titanium has a high coefficient of friction when contacting itself or stainless alloys. Under severe high-torque installation without lubrication, thread galling (cold-welding) can occur. We recommend three standard protocols for technicians in Erdenet: (1) Always apply a high-nickel, copper, or molybdenum-disulfide (MoS2) anti-seize compound to all male threads prior to assembly; (2) Use torque wrenches calibrated specifically for titanium rather than standard carbon-steel torque specs (titanium typically requires ~15-20% less torque due to its modulus of elasticity of 110 GPa versus steel's 200 GPa); (3) For continuous automated assembly, request our factory-applied anti-galling PVD coating or micro-arc oxidation treatments.
How does galvanic corrosion affect titanium fasteners connected to mild steel or aluminum frames? +
Titanium is extremely noble on the galvanic galvanic series (high electrode potential). When connected directly to less noble metals like mild steel or aluminum in the presence of an electrolyte (such as mineral slurry or salted road spray), the less noble host metal can corrode sacrificially. To mitigate galvanic attack in wet or chemically active zones around processing plants, engineers should specify dielectric isolating bushings (PTFE, PEEK, or nylon sleeve washers) or ensure proper primer/organic sealants isolate the fastener head and mating surface. When titanium is fastened to stainless steel (304/316), the galvanic differential is minimal and completely safe in standard environments.
What is the typical lead time and logistics route for bulk shipments dispatched to Erdenet? +
Standard stocked fastener lines (DIN 912 socket bolts, DIN 6923 flange nuts, M3-M20 hex nuts) are dispatched from our Baoji central warehouse within 48 to 72 hours. Custom CNC parts and non-standard thread orders to customer drawings generally take 15 to 25 production days. Shipments to Erdenet move quickly via the primary rail and highway freight corridor: Baoji → Beijing/Hohhot → Erlianhaote (Erlian) → Zamiin-Uud customs terminal → Ulaanbaatar → Erdenet. For urgent maintenance breakdowns, air express (DHL/FedEx/SF Express) delivers right to your facility in Erdenet within 5 to 8 business days.
Can Yevzo manufacture replacement bolts according to old Russian GOST or non-standard mining machinery drawings? +
Yes. Many industrial processing plants operating in northern Mongolia run machinery specified under GOST standards or proprietary OEM blueprints. Our multi-axis CNC turn-mill machining centers can cut Metric, GOST, Unified National (UNC/UNF), and custom trapezoidal or buttress threads directly from PDF engineering drawings, STEP/IGES 3D files, or physical field-worn samples sent to our metallurgical laboratory for CMM digitization and reverse engineering.
What Minimum Order Quantities (MOQ) and payment options are supported? +
For catalog items and standard metric fasteners, our MOQ begins at just 10 to 30 pieces to facilitate prototyping and immediate maintenance repairs. Common hex nuts and washers carry standard pack minimums of 100 to 200 pieces. Full OEM custom-machined parts are quoted on a case-by-case basis according to raw bar dimensions. We accept diverse payment options including Telegraphic Transfer (T/T), Letter of Credit (L/C), D/P, PayPal, Western Union, and corporate credit cards, invoiced in USD, EUR, or CNY.
Equip Your Operation with Unbreakable Fastening Reliability
Connect with our technical sales division today. Download our 2025 technical fastener catalog, submit your bill of materials (BOM), or request raw material test certifications for your specific project in Erdenet.
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