What it is
Marine aquaculture means fish farms in the ocean. Cages. Nets. Pens. All sitting in seawater. Salt. Chlorides. Marine growth. Steel rusts. Copper kills fish. Stainless pits.
Titanium wire for marine aquaculture equipment solves those problems. No rust. No pitting. No toxic copper. Lasts for years underwater.
Pen netting. Cage frames. Predator nets. Mooring components. Anything that touches seawater and needs to hold fish.
Why titanium in aquaculture
Steel wire rusts. Rust flakes off. Pollutes the water. Fish get sick. Nets break. Fish escape.
Copper wire kills marine growth. But copper also kills fish. Toxic to sensitive species.
Stainless works for a while. But stainless pits in seawater. Crevice corrosion at connections.
Titanium does none of that. Oxide layer is stable. No rust. No toxic ions. No pitting.
For titanium wire for marine aquaculture equipment, the wire stays clean. Fish stay healthy. Equipment lasts.
Which grade for aquaculture
| Grade | Tensile | Best for |
| Grade 1 | 240 MPa | Soft wire, knots, tying |
| Grade 2 | 345 MPa | General purpose, nets, cables |
Grade 2 is the standard. Strong enough for netting and predator nets. Good corrosion resistance.
Grade 1 is softer. Used for wire that needs to be tied into knots. Easier to work with.
For titanium wire for marine aquaculture equipment, Grade 2 covers most applications.
Material specs (Grade 2)
| Property | Value |
| Tensile (min) | 345 MPa |
| Yield (min) | 275 MPa |
| Elongation | ≥ 20% |
| Density | 4.51 g/cm³ |
| Corrosion in seawater | None |
Common diameters for aquaculture
| Diameter (mm) | Application |
| 0.5 – 1.0 | Fine mesh netting, small cages |
| 1.0 – 1.5 | Predator nets, bird netting |
| 1.5 – 2.0 | Pen netting, main net |
| 2.0 – 2.5 | Cage frames, support lines |
| 2.5 – 3.0 | Mooring ropes, tension cables |
| 3.0 – 4.0 | Heavy duty, large cages |
Where it goes
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Pen netting. The main enclosure for fish. Thousands of meters of wire woven into net. 1.5mm to 2.0mm diameter. Grade 2.
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Predator nets. Outer net to keep seals and birds out. 1.0mm to 1.5mm. Grade 2.
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Cage frames. The structure that holds the net. Welded from wire. 2.0mm to 3.0mm. Grade 2.
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Mooring lines. Anchor cables. Wire rope. 3.0mm to 4.0mm. Grade 2.
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Repair wire. Farmers need wire to patch torn nets. On site. 1.5mm. Grade 1 or Grade 2.
For titanium wire for marine aquaculture equipment, the wire is woven, welded, or tied. Always wet. Always in salt.
Why not stainless
Stainless 316 wire is cheaper. But in seawater, stainless pits.
Pitting starts at scratches. The pit grows. Wire gets thinner. Breaks.
Titanium doesn't pit. Even scratched. The oxide layer heals.
For titanium wire for marine aquaculture equipment, titanium costs more upfront. But you replace it less often. Maybe never.
Why not galvanized steel
Galvanized steel has zinc coating. Zinc corrodes to protect the steel. But the coating wears off. Then the steel rusts.
In seawater, galvanized wire lasts 1-2 years. Titanium lasts 10-20 years.
For titanium wire for marine aquaculture equipment, the longer life means less downtime. Less labor to replace nets.
Fabrication
Weaving. Titanium wire weaves like stainless. Same equipment. Same patterns.
Welding. Grade 2 wire welds with ERTi-2 filler. Argon shield required.
Tying. Grade 1 wire is soft enough to tie by hand. Grade 2 needs pliers.
For titanium wire for marine aquaculture equipment, the wire comes on spools. Ready for your netting machine or repair crew.
Marine growth
Barnacles. Mussels. Algae. They grow on everything in seawater.
Titanium doesn't prevent growth. They still attach. But they don't corrode the wire underneath. And they clean off easier than steel.
For titanium wire for marine aquaculture equipment, pressure washing removes growth. Wire stays intact.
Strength comparison
| Material | Diameter for same breaking load | Weight |
| Titanium Grade 2 | 1.0x | 4.5 g/cm³ |
| Stainless 316 | 0.9x | 7.9 g/cm³ |
| Galvanized steel | 1.1x | 7.8 g/cm³ |
Titanium is lighter than steel for the same breaking strength. That matters for floating cages. Less weight to support.
Cost vs lifespan
| Material | Relative cost | Lifespan in seawater |
| Galvanized steel | 1x | 1-2 years |
| Stainless 316 | 3x | 3-5 years |
| Titanium Grade 2 | 10x | 15-20 years |
Titanium costs more. But over 20 years, you buy steel 10 times. Titanium once.
For commercial fish farms, the math works. Less labor. Fewer escapes. Happier fish.
Handling on site
Aquaculture farms are remote. Ocean sites. Repair crews need wire they can work with.
Grade 1 wire is soft. Can be cut with wire cutters. Bent by hand.
We supply straight lengths for repair. Pre-cut. 500mm. 1000mm. Easy to pack on a boat.
For titanium wire for marine aquaculture equipment, we make it farm-ready.
Traceability
Mill test reports. Heat number traceable. ASTM B863 cert.
FAQ
Q: Grade 1 or Grade 2 for net repair?
A: Grade 1. Softer. Easier to tie knots by hand. Grade 2 is stronger but stiffer.
Q: How long does titanium wire last in seawater?
A: 15-20 years. Some installations longer. No rust. No pitting.
Q: Does titanium attract sharks?
A: No. Titanium is non-magnetic. No evidence of shark attraction.
Q: Can I weld titanium wire on site?
A: Not easily. Welding requires argon shielding. Use mechanical connections or knots.
The bottom line
Fish farms sit in seawater. Steel rusts. Stainless pits. Copper kills.
Titanium wire for marine aquaculture equipment solves all three.
Grade 2 for netting and frames. Grade 1 for repair and tying.
0.5mm to 4.0mm diameter. Spools or straight lengths.
Lasts 15-20 years. No corrosion. No fish loss.
For pen netting. For predator nets. For cage frames. For mooring lines.
The wire that works in salt water.
Contact
Need a quote on titanium wire for marine aquaculture equipment? Tell us diameter, grade, quantity (kg, spools, or cut lengths), and application. We'll reply within 24 hours.
Email: kristy@mt-titanium.com
WhatsApp: +86-17391509251
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