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Titanium Alloy Square Nuts

Item name:Titanium alloy square nuts
Material:CP titanium Gr2, Titanium alloy Gr5
Shape:Square,Rectangle
Size: M2,M3,M4,M5,M6,M8,M10,M12
MOQ: 10pcs

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Description

what is Titanium alloy square nuts?

Titanium alloy square nuts are lightweight, high-strength, and corrosion-resistant square fastening components. Their core advantages are high specific strength, corrosion resistance, non-magnetic properties, and anti-loosening stability. They are widely used in aviation, aerospace, shipbuilding, chemical, high-end equipment, and lightweight modification applications.

When selecting a nut, prioritize Grade 5 and pay attention to anti-sticking and torque control.

Basic Definitions and Structure

Titanium alloy square nuts

Definition: A square nut machined from industrial pure titanium (TA1/TA2) or titanium alloy (mainly TC4/Ti-6Al-4V), used in conjunction with bolts/studs for fastening.
Structure:
Outline: Regular square prism with four flat surfaces for wrench gripping.
Internal: Standard metric/imperial internal threads (mainly M3–M64).
Surface: Natural, anodized (colored), passivated, nitrided, etc.
Type: Standard type, self-locking type (toothed/insert anti-loosening).

Core performance of Titanium alloy square nuts

TI6AL4V

Density: 4.51 g/cm³ (approximately 58% of steel, 60% of stainless steel)
Strength: Tensile strength 860–950 MPa, hardness HRC 32–38, close to grade 10.9 steel
Corrosion resistance: Extremely strong, long-term stable in seawater/acid/alkali/salt spray environments, superior to stainless steel
Non-magnetic: Magnetic permeability ≈1.0001, completely non-magnetic
Thermal properties: Melting point 1668℃, low coefficient of linear expansion, good high-temperature stability
Friction: Easily galling, anti-sticking agent required for assembly

Specifications and Standards

Metric: M3, M4, M5, M6, M8, M10, M12, M14, M16, M20, M24…M64
Imperial: 1/4″, 5/16″, 3/8″, 1/2″…1 1/2″
Standards:
German Standard: DIN 557 (Square Nuts), DIN 934
International Standard: ISO 4032, ISO 898-6
American Standard: ANSI B18.2.2

Core features and advantages

1. Lightweight (Biggest Selling Point): 40%–45% lighter than steel nuts of the same specifications, significantly reducing structural weight. Suitable for extreme weight reduction applications such as aviation, racing, drones, and high-end bicycles.

2. Ultra-High Corrosion Resistance: A dense oxide film naturally forms on the surface, resistant to seawater, acids, alkalis, salt spray, and chemical media. Maintenance-free and rust-free for long-term use in marine, chemical, and coastal equipment.

3. High Strength and High Specific Strength: Strength close to medium-high strength steel, but much lighter; specific strength far exceeds that of steel/aluminum. Meets the dual requirements of high load and lightweight design.

4. Advantages of the Square Structure:
Anti-rotation: Stable clamping on four planes, preventing slippage.
Anti-loosening: With anti-loosening washers/self-locking structure, strong vibration and anti-loosening capabilities.
Installation Space Friendly: Easier to operate in narrow spaces.

5. Other Advantages:
Non-magnetic: Does not interfere with precision electronics, medical equipment, or magnetic detection systems.
High/Low Temperature Resistance: Stable over a wide temperature range, suitable for extreme environments.
Biocompatibility: Can be used in medical implants (e.g., orthopedics).

Typical application areas

Aerospace: Aircraft structures, engines, satellites, missiles (weight reduction + corrosion resistance + non-magnetic)
Marine & Marine: Seawater equipment, marine fasteners, offshore platforms (seawater corrosion resistance)
Chemical/Petroleum: Reactors, pipelines, valves (acid and alkali resistance/corrosive media resistance)
Automotive/Racing: Wheels, chassis, engines (weight reduction and performance improvement)
Medical: Orthopedic implants, surgical instruments (biocompatible + non-magnetic)
High-end Equipment: Drones, robots, precision instruments, bicycles (lightweight + durable)
Electronics/Military: Non-magnetic equipment, radar, communications (no magnetic interference)