Changzhou DLX Alloy Co., Ltd.
| Delivery Time | 5-20 Days |
| Payment Terms | L/C, T/T, Western Union |
| Supply Ability | 500 tons per month |
| Corrosion Resistance | High 99.9% |
| Block | D-block |
| Form | Solid |
| Shape | Nickel Metal Wire |
| Crystal Structure | Face-centered Cubic |
| Size | 0.025mm |
| Atomic Mass | 58.6934 G/mol |
| Atomic Weight | 58.6934 G/mol |
| Brand Name | DLX |
| Model Number | 0.025 Pure Nickel Wire |
| Place of Origin | China Jiangsu |
| Certification | CE,ROHS |
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Product Specification
| Delivery Time | 5-20 Days | Payment Terms | L/C, T/T, Western Union |
| Supply Ability | 500 tons per month | Corrosion Resistance | High 99.9% |
| Block | D-block | Form | Solid |
| Shape | Nickel Metal Wire | Crystal Structure | Face-centered Cubic |
| Size | 0.025mm | Atomic Mass | 58.6934 G/mol |
| Atomic Weight | 58.6934 G/mol | Brand Name | DLX |
| Model Number | 0.025 Pure Nickel Wire | Place of Origin | China Jiangsu |
| Certification | CE,ROHS | ||
| High Light | 0.025MM Pure Nickel Metal Wire ，0.025MM Nickel Metal Wire ，High Durability Pure Nickel Metal Wire | ||
0.025mm Pure Nickel Wire — High Durability for Industrial Applications
Fine wire fails in three ways: fatigue fracture from repeated flexing, corrosion attack at surface defects, and dimensional drift that breaks circuit tolerances. At 0.025 mm, every imperfection is magnified — a surface flaw that is invisible on 1 mm wire can end the life of a micro-wire in weeks. This high-purity nickel wire is drawn to ±0.003 mm and annealed for ≥35% elongation, so it survives the flexing, heat and corrosive atmospheres of industrial service instead of merely surviving the drawing die.
Wire Diameter & Tolerances
| Diameter | Tolerance | Typical delivery form |
|---|---|---|
| 0.025 mm (ultra-fine) | ±0.003 mm | Spool, continuous length |
| 0.05–0.5 mm | per drawing | Spool, continuous length |
| 0.5–10 mm | per drawing | Coil, continuous length |
Diameter verified by laser gauge across every spool; tolerance on diameters above 0.05 mm is confirmed per drawing before production.
Key Advantages
Technical Deep Dive
1. Unit Length Data — What a Spool Really Buys You (Calculated)
Based on density 8.908 g/cm³ and a 0.025 mm round section, the supply economics of ultra-fine wire are:
| Wire (0.025 mm) | Value | Basis |
|---|---|---|
| Cross-section | 0.000491 mm² | π·d²/4 |
| Mass per metre | ≈0.00437 kg/m | density 8.908 g/cm³ |
| Length per kilogram | ≈229 m/kg | calculated |
| Resistance per metre | ≈196 Ω/m at 20 °C | resistivity 0.096 μΩ·m |
One kilogram of 0.025 mm wire spans roughly 229 metres — a single spool can carry a full production run of miniature heating or sensing elements without a splice.
2. Drawing Precision and Diameter Control
Ultra-fine wire is drawn from larger rod through multiple passes with intermediate annealing. The 0.025 mm line is held to ±0.003 mm and 100% laser-gauged, because a diameter error that is trivial on thick wire becomes a resistance error of several percent on micro-wire.
| Parameter | 0.025 mm wire |
|---|---|
| Diameter tolerance | ±0.003 mm |
| Ovality | within tolerance band |
| Verification | Laser gauge, 100% of spools |
| Surface | Clean, oxide-controlled after anneal |
3. Electrical Performance and Temperature Behaviour
Pure nickel's resistivity of 0.096 μΩ·m at 20 °C makes 0.025 mm wire a predictable element for miniature heaters, sensors and fuse links. Annealing stabilises the microstructure so resistivity stays consistent along the length — the property that matters when a 1 Ω change in a micro-wire changes a circuit's behaviour.
| Property | Value |
|---|---|
| Resistivity (20 °C) | 0.096 μΩ·m |
| Resistance per metre (0.025 mm) | ≈196 Ω/m (calculated) |
| Thermal conductivity | 70.2 W/m·K |
| Curie temperature | 358 °C |
4. Durability in Industrial Service
Industrial failure of fine wire is dominated by mechanical fatigue and corrosion, not static load. Annealed nickel delivers ≥35% elongation and 90–120 HB hardness, letting the wire flex without work-hardening to fracture, while its stable passive film resists industrial atmospheres, condensation and mild chemical exposure.
| Durability factor | Annealed pure nickel (0.025 mm) |
|---|---|
| Elongation | ≥35% — flexing tolerance |
| Hardness | 90–120 HB — formable, not brittle |
| Corrosion mode | Passive film, self-healing after surface damage |
| Failure mode avoided | Work-hardening fracture, pitting initiation |
Grade & Price Guide
| Grade | Ni Content | Best Application | Reference Price (FOB, USD/kg) |
|---|---|---|---|
| N4 (NP1) | ≥99.9% | Vacuum electronics | 420–480 |
| Ni201 | ≥99.0% | High-temp service | 350–390 |
| Ni200 | ≥99.2% | Battery, chemical | 340–380 |
| N6 (NP2) | ≥99.5% | Industrial corrosion | 300–340 |
FOB China port, subject to spool size and quantity. Final quotation per drawing.
Chemical Composition
Source: DLX product catalogue, pure nickel family (grades N4 / N6 / Ni200 / Ni201).
| Element (wt%) | N4 | N6 | Ni201 | Ni200 |
|---|---|---|---|---|
| Ni+Co | 99.9 | 99.5 | — | — |
| Ni | — | — | ≥99.0 | ≥99.2 |
| C | ≤0.01 | ≤0.10 | ≤0.02 | ≤0.15 |
| Cu | ≤0.015 | ≤0.10 | ≤0.25 | ≤0.25 |
| Si | ≤0.03 | ≤0.10 | ≤0.35 | ≤0.35 |
| Mn | ≤0.002 | ≤0.05 | ≤0.35 | ≤0.35 |
| Fe | ≤0.04 | ≤0.10 | ≤0.40 | ≤0.40 |
| S | ≤0.001 | ≤0.005 | ≤0.01 | ≤0.01 |
| P | ≤0.001 | ≤0.002 | — | — |
| Mg | ≤0.01 | ≤0.10 | — | — |
Mechanical & Physical Properties (Annealed)
| Property | Value |
|---|---|
| Density | 8.908 g/cm³ |
| Melting point | 1435–1446 °C |
| Curie temperature | 358 °C |
| Tensile strength (annealed) | ≥462 MPa |
| Elongation (annealed) | ≥35% |
| Hardness (annealed) | 90–120 HB |
| Shear modulus | ≈76 GPa |
| Electrical resistivity | 0.096 μΩ·m (20 °C) |
| Thermal conductivity (Ni200) | 70.2 W/m·K |
Product Specification
| Item | Detail |
|---|---|
| Form | Fine wire on spool, continuous length |
| Diameter | 0.025–10 mm |
| Temper | Annealed (M) / half-hard / hard, per winding and forming process |
| Surface | Clean, oxide-controlled; bright or matte |
| Spool weight | per drawing (0.025 mm: ≈229 m/kg) |
| Packaging | Plastic spool + moisture barrier + export carton |
Quality Assurance
At 0.025 mm, measurement is the product. Every spool is laser-gauged for diameter and ovality, and surface condition is checked after annealing; batches are sampled for tensile, elongation and hardness. Chemical composition is locked per heat, and an EN 10204 3.1 MTC is issued on request.
Packaging & Delivery
Wire is wound on plastic spools with controlled tension to prevent tangling, wrapped in moisture barrier film and packed in export cartons; spool IDs and lot numbers trace back to the heat. Standard diameters ship in 3–7 days from stock, custom drawing in 15–25 days. Free 0.5 kg samples are dispatched within 3–5 days.
About DLX Alloy
Drawing 0.025 mm wire is a discipline of patience: rod is reduced through pass after pass with intermediate annealing, and one inconsistent heat turns into meters of scrap. Changzhou DLX Alloy has refined this fine-wire process since 2002 inside a 12,000 m² nickel-only plant — melting, rolling, drawing and testing under one roof, so every spool of micro-wire carries the same chemistry, the same surface and the same tolerance as the one before it. ISO9001 and SGS certified, 1,200 tonnes of annual capacity.
FAQ
Q1. How much length do I get per kilogram of 0.025 mm wire?
Approximately 229 m/kg, calculated from the 0.025 mm section and nickel density 8.908 g/cm³ — a single spool can cover a full production run without splices.
Q2. What diameter tolerance can you hold on 0.025 mm wire?
±0.003 mm, verified by laser gauge on 100% of spools; ovality is held within the tolerance band.
Q3. What are the MOQ and sample terms?
MOQ is 5 kg. A free 0.5 kg sample is available for N6 and Ni200; N4 and Ni201 samples are charged and refunded with your first order above 50 kg.
Q4. Which industrial applications suit this wire?
Miniature heating elements, sensors, fuse links, wire-wound components and fine instrumentation — where corrosion resistance, flexing durability and stable resistivity are required.
Q5. Do you provide material certificates?
Yes. EN 10204 3.1 MTC with full chemical composition and mechanical test results is available per batch.
Company Details
Business Type:
Manufacturer,Seller
Year Established:
2002
Total Annual:
1000000-120000000+
Employee Number:
100~150
Ecer Certification：
Verified Supplier
Changzhou DLX Alloy Co., Ltd. was established in 2002 and has passed ISO9001 international quality management system certification and SGS certification.We initially focused on the production of resistance alloys. Over the past 20 years, we have continued to conduct research and development and now ... Changzhou DLX Alloy Co., Ltd. was established in 2002 and has passed ISO9001 international quality management system certification and SGS certification.We initially focused on the production of resistance alloys. Over the past 20 years, we have continued to conduct research and development and now ...
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