AL59 Rod
AlMgSi — Overhead Conductor Grade Rod
Overview
AL59 alloy rod meets IEC 62004 requirements for overhead conductor strands — optimised Mg and Si balance delivers minimum 59% IACS conductivity combined with 160 MPa tensile strength for medium and long-span lines
Applications
Common Alloys
Properties
Manufacturing Process
Step 1
Billet Preparation
AL59 billets preheated to 490–520 °C; Mg/Si ratio precisely controlled per IEC 62004 to achieve the 59% IACS conductivity target.
Step 2
Continuous Casting & Rolling (CCR)
Molten alloy cast via twin-belt caster and immediately hot-rolled in-line; rapid processing retains alloying elements in solid solution.
Step 3
Hot Rolling
Multi-stand mill reduces rod to 9.5–12 mm at 420–470 °C; rolling schedule optimised for conductivity and mechanical property balance.
Step 4
Quench & T1 Temper
Controlled water quench after the final roll pass delivers T1 temper and locks Mg₂Si in solution for subsequent aging.
Step 5
Artificial Aging
Aged to T6 or T81 temper per IEC 62004 — minimum 160 MPa tensile and 59% IACS conductivity verified on every production coil.
Step 6
Inspection & Dispatch
Tensile strength, elongation, and electrical conductivity measured per coil to IEC 62004. Full traceability certificates issued.
Step 1
Billet Preparation
AL59 billets preheated to 490–520 °C; Mg/Si ratio precisely controlled per IEC 62004 to achieve the 59% IACS conductivity target.
Step 2
Continuous Casting & Rolling (CCR)
Molten alloy cast via twin-belt caster and immediately hot-rolled in-line; rapid processing retains alloying elements in solid solution.
Step 3
Hot Rolling
Multi-stand mill reduces rod to 9.5–12 mm at 420–470 °C; rolling schedule optimised for conductivity and mechanical property balance.
Step 4
Quench & T1 Temper
Controlled water quench after the final roll pass delivers T1 temper and locks Mg₂Si in solution for subsequent aging.
Step 5
Artificial Aging
Aged to T6 or T81 temper per IEC 62004 — minimum 160 MPa tensile and 59% IACS conductivity verified on every production coil.
Step 6
Inspection & Dispatch
Tensile strength, elongation, and electrical conductivity measured per coil to IEC 62004. Full traceability certificates issued.
Chemical Composition
IEC 62004
Max % unless range shown. Balance: Al.
| Alloy | Chem. Symbol | Si | Fe | Cu | Mn | Mg | Cr | Zn | Ti |
|---|---|---|---|---|---|---|---|---|---|
| AL59 | AlMgSi | 0.40–0.70 | 0.35 | 0.10 | 0.10 | 0.50–0.90 | 0.10 | 0.10 | 0.10 |
Standards Compliance
| Standard | Description |
|---|---|
| ASTM B230 | EC Aluminium Wire |
| ASTM B398 | Aluminium Alloy Wire |
| ASTM B399 | AAAC Conductors |
| ASTM B941 | Aluminium Alloy Wire |
| IEC 60889 | Hard Drawn Aluminium Wire |
Wire Size & Application
| Diameter | Common Application |
|---|---|
| 0.25 mm | Fine Mesh |
| 0.30 mm | Cable Shielding |
| 0.50 mm | Braiding |
| 0.80 mm | Weaving |
| 1.20 mm | Welding |
| 2.00 mm | Fasteners |
| 3.50 mm | General Engineering |
Temper / Hardness
| Temper | Description |
|---|---|
| O | Annealed (Soft) |
| H12 | Quarter Hard |
| H14 | Half Hard |
| H18 | Full Hard |
| H19 | Extra Hard |
Certification & Finish
Mill Test Certificate (MTC)
- Chemical Composition
- Mechanical Properties
- Heat Number
- Batch Number
- Dimensions
NABL / Government Lab Certificates
- UTS
- Yield Strength
- Conductivity
- Elongation
- Chemical Composition
- Hardness
Finish & Packaging
Surface Finish
Packaging Options