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Comprehensive Non Magnetic Tool Kit featuring titanium tools suitable for engineering where magnetic interference must be avoided

  • Comprehensive Non Magnetic Tool Kit featuring titanium tools suitable for engineering where magnetic interference must be avoided
  • Comprehensive Non Magnetic Tool Kit featuring titanium tools suitable for engineering where magnetic interference must be avoided
Brand Name Jovi
Certification ISO9001
Model Number 1-cf-7
Document JVVM-NMT-Series SPE and Quo...on.pdf
Minimum Order Quantity 1set
Price $1580~$3190/set
Packaging Details Carton&wooden Box
Delivery Time 7-14days
Payment Terms T/T
Supply Ability 300 Set / Month
Product Details
Magnetic Susceptibility < 5 × 10⁻⁶ Material Composition ≥90% Titanium
Tensile Strength 950-1100 MPa Surface Hardness 36 HRC
Density 4.4 G/cm³ Handle Material Ergonomic Plastic Or Rubber
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Product Description
Jovvi Non-Magnetic Titanium Tool Kit for MRI Engineering (Comparative Analysis: Titanium vs. Stainless Steel vs. Brass)
1. Quality – The Magnetic Susceptibility Hierarchy

Not all “non‑magnetic” tools are equal. The key metric for MRI safety is magnetic susceptibility (χ) – how strongly a material becomes magnetized in an external magnetic field.

Material Magnetic Susceptibility (χ, SI units) Artifact Size at 3T (approx.) MRI Suitability
Titanium (Grade 5, Ti‑6Al‑4V) < 5 × 10⁻⁶ < 1 mm Ideal
Beryllium copper < 1 × 10⁻⁵ 1–2 mm Acceptable
Brass (Cu‑Zn) ~ 0 (diamagnetic) < 1 mm Good, but weak
300 series stainless (316, 304) ~ 10⁻³ (field‑dependent) 5–20 mm Poor – artifacts likely
Aluminum ~ 2 × 10⁻⁵ 2–5 mm Acceptable (too soft for tools)
Ferrous steel > 10² > 100 mm Dangerous – projectile

Jovvi guarantee: All titanium tools have χ < 5 × 10⁻⁶, verified by SQUID magnetometer testing per ASTM F3042.

2. Application Scenarios – Where Material Choice Matters Most
Scenario A: RF Coil Repair Inside Bore (3T Magnet)

  • Task: Tightening a 3 mm set screw on a receive coil housing, 20 cm from isocenter.

  • With 316 stainless wrench: Field distortion at coil level → image artifact diameter up to 15 mm, potentially obscuring pathology. Also, torque feels inconsistent due to magnetic drag.

  • With Jovvi titanium wrench: No artifact. No magnetic drag. Screw torque is accurate.

  • With brass wrench: No artifact, but brass is soft – wrench jaws may deform after 50 uses.

Jovvi solution: Titanium hex keys (100% Ti) – hard enough for repeated use, completely artifact‑free.

Scenario B: Cryostat Port Access (4T–7T Scanner)

  • Task: Removing a 14 mm hex nut from the helium fill port. The tool must not become magnetized, because any magnetized tool near the cryostat can disturb field homogeneity.

  • Risk with stainless tools: 300 series stainless becomes weakly ferromagnetic after cold working (bending, machining). A previously “non‑magnetic” stainless wrench may attract to the magnet after 6 months of shop use.

  • Titanium advantage: Titanium does not work‑harden to a ferromagnetic state. Its magnetic susceptibility remains stable for the life of the tool.

Jovvi guarantee: Lifetime magnetic stability – no ferromagnetic transformation under any mechanical or thermal stress.

Scenario C: RF Shield Installation (Faraday Cage Assembly)

  • Task: Hammering copper fasteners into plywood backing. The hammer head must be non‑magnetic and non‑sparking.

  • Brass hammer: Non‑sparking, but density low (8.4 g/cm³) – requires heavy head for same impact. Brass also deforms quickly.

  • Titanium hammer: Density 4.4 g/cm³ – lighter, but Jovvi compensates with larger head volume. Surface hardness (36 HRC) much higher than brass – no deformation.

Jovvi solution: 100% titanium hammer head with replaceable face inserts.

3. Tool Variety – Jovvi’s Titanium Advantage by Tool Type
Tool Standard Non‑Magnetic Alternatives Problem with Alternatives Jovvi Titanium (≥90%) Benefit
Hex keys Brass, beryllium copper Brass strips easily; Be‑Cu expensive Ti hardness = steel‑like, no stripping
Screwdrivers 316 stainless, ceramic 316 causes minor artifacts; ceramic brittle Ti blade + brass handle – best of both
Pliers Bronze, aluminum bronze Bronze heavy; aluminum too soft Ti jaws with bronze pivot – light & strong
Wrenches 316 stainless, aluminum 316 artifacts; aluminum strips threads Ti – no artifacts, full torque capacity
Hammer Brass, bronze, lead‑filled plastic Brass dents; plastic too light Ti head – durable, non‑sparking, MRI‑safe
Tweezers Ceramic, plastic, brass Ceramic breaks; plastic melts if autoclaved Ti – strong, autoclavable, non‑magnetic
4. Production Assurance – Maintaining ≥90% Titanium Through Manufacturing

Jovvi’s production process ensures that ≥90% of each tool’s mass is titanium, not just the visible parts.

Hidden Ferromagnetic Risks in “Titanium” Tools from Other Brands
Component Cheap Competitor Practice Jovvi Practice
Screwdriver internal shank Steel core with Ti coating Solid Ti‑6Al‑4V shank
Pliers pivot pin Steel pin, nickel plated Bronze or Ti pin
Ratchet spring Steel music wire Beryllium copper spring
Hammer handle Steel tube with rubber grip Fiberglass or solid Ti
Hex key set Steel with TiN (titanium nitride) coating – appears “titanium” 100% Ti alloy, no coating needed

Jovvi verification: Each tool is X‑ray inspected to confirm no internal ferromagnetic components. Material certificates are lot‑traceable.

Torque & Strength Validation

  • Titanium tensile strength: 950–1100 MPa (comparable to 4140 steel)

  • Brass tensile strength: 300–500 MPa (too weak for high‑torque applications)

  • 316 stainless: 500–700 MPa (strong, but magnetic susceptibility 1000× higher than Ti)

Jovvi titanium tools are rated for 100% of the torque specified for equivalent steel tools – unlike brass or aluminum alternatives that must be derated.

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