A Comprehensive Guide to Aluminum Strand Products: A Complete Handbook Covering Grades, Models, Specifications, Current-Carrying Capacity, and Application Scenarios

As the core conductive material for overhead transmission and distribution lines, aluminum stranded conductors are categorized into three major mainstream types: all‑aluminum conductors (AAC/JL), steel‑core aluminum conductors (ACSR/JL/G1A), and all‑aluminum alloy conductors (AAAC). These cover key alloy grades such as 1060, 1350, and 6101. Domestically, they comply with the GB/T 1179‑2024 national standard, while export‑bound products meet IEC and ASTM international standards. Due to insufficient understanding of fundamental aluminum conductor parameters, many purchasers and engineering designers inadvertently select incorrect models or mismatch cross‑sections, leading to project rework and unnecessary cost overruns. This paper systematically dissects the comprehensive technical knowledge of aluminum stranded conductors, integrating Orange Easy Aluminum’s standardized product portfolio and process advantages to address both domestic engineering selection needs and international trade procurement requirements.

I. Detailed Explanation of Common Aluminum Strand Material Grades (with Corresponding Standardized Parameters)

1. 1060 Pure aluminum stranded wire : Aluminum content ≥99.6% , electrical conductivity 61% IACS , lightweight and cost-effective, with a single wire diameter of 0.3–6mm , with a bright surface free of impurities; minimum order quantity 500kg In stock, unit price 12.8  Yuan /kg It is suitable for low-voltage overhead distribution in rural power grids and short-distance distribution within industrial parks, making it a best-selling material in China. Chengyi Aluminum Industry. 1060  All stranded wires are made of virgin material. A00 Aluminum ingots, free from recycled impurities, with each batch accompanied by… SGS Material report.
2. 1350 High-purity electrical aluminum stranded wire : Aluminum purity ≥99.7% , electrical conductivity 61.5% IACS , with lower conductive losses, it is a best-selling grade for exports to Europe and the Americas, the Middle East, and Southeast Asia, and is mandatorily used in high-voltage, long-distance power transmission; supports CE 、 IEC Full certification; custom sample production 3  Heaven, batch delivery date 3  Day, unit export price 1.9 USD/kg Rise.
3. 6101 Heat-resistant aluminum alloy AAAC Stranded wire : Heat resistance temperature 150℃ , with a current-carrying capacity higher than that of ordinary aluminum stranded conductors 50% , belongs to 2026  The fastest-growing new product category in both domestic and international markets, suitable for long-distance transmission in photovoltaic and wind power plants, as well as for upgrading and capacity expansion of aging transmission lines; Chengyi’s proprietary alloy smelting production line enables customization to achieve various hardness levels. O/H14 , Surface antioxidant coating available as an option.
4. JL/G1A Steel-core aluminum stranded wire ( ACSR ) : Aluminum layer conductivity + Galvanized steel core for load-bearing, with significantly enhanced tensile strength, suitable for high‑voltage, extra‑high‑voltage, and ultra‑high‑voltage transmission lines, as well as large‑span transmission across rivers and mountains; cross-sectional coverage ranges from… 300/40 、 400/50 、 630/80 Standard specifications, theoretical weight 1.2–2.7 kg/m , dual-warehouse stock available at all times.

II. Designation Rules for Aluminum Strand Conductors (National Standard GB/T 1179-2024)

JL: Stranded pure aluminum conductor (formerly designated LJ); JL/G1A: Aluminum conductor steel‑reinforced (ACSR); JL/LHA1: Aluminum alloy‑core, heat‑resistant stranded conductor. The numbers indicate the nominal cross-sectional area in mm²; for example, JL‑240 denotes a 240 mm² pure aluminum conductor, and JL/G1A‑300/50 indicates an ACSR with a 300 mm² aluminum section and a 50 mm² steel core. Internationally, common designations are AAC (all‑aluminum conductor), ACSR (aluminum conductor steel‑reinforced), and AAAC (all‑aluminum alloy conductor). For export orders, production can be carried out according to these international designations, and Chengyi supports the simultaneous issuance of both Chinese and English specification sheets.

III. Standardized Information on Dimensions, Weight, and Surface Treatment

1. Number of strands in the strand: 7 Stock (small cross-section) 16/25/35 ), 19  Share ( 50–185 ), 37  Share ( 240–400 ), 61  Share ( 500  The above applies to large cross-sections; outer diameter tolerances are strictly controlled. ±0.5% , single-line thickness tolerance ±0.01~0.03mm 。
2. Optional surface treatment options: ① Bare aluminum, bright finish (standard stock) ② Corrosion‑inhibiting passivation layer (for coastal areas with high salt‑fog exposure) ③ High-Temperature Oxidation-Resistant Coating (Photovoltaic High-Temperature Wiring) ④ Thickened galvanized steel core (for high‑altitude, ice‑prone regions); all surface finishes can be customized to your specifications, with no additional costly proofing fees.
3. Theoretical weight reference: JL-185≈0.62kg/m ； JL/G1A-300/40≈1.13kg/m ； AAAC-400≈1.08kg/m The OrangeEasy product detail page features a comprehensive specification‑to‑weight conversion table, making cost estimation for procurement even more convenient.
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IV. Application Scenarios for the Three Major Categories of Aluminum Conductor Stranded Wire (Distinguishing Between Domestic and Overseas Markets)

Domestic market scenarios

1. JL Pure aluminum 1060  Stranded wire: rural distribution network upgrades, low-voltage overhead lines in industrial parks, and residential distribution branch circuits. 2026  Township infrastructure procurement volume increased year over year. 27%；
2. ACSR Steel‑core aluminum stranded conductors: a key procurement category for State Grid’s ultra‑high‑voltage projects, interprovincial transmission lines, and large‑span mountainous‑area crossings during the 15th Five‑Year Plan period.
3. AAAC Heat‑resistant aluminum alloy stranded conductor: ideal for large wind‑and‑solar power bases, transmission lines supporting energy storage stations, and capacity upgrades in aging urban grids. It can increase transmission capacity without replacing existing steel towers, making it the preferred product line recommended by design institutes.

Popular Overseas Procurement Scenarios

1. Southeast Asia—Vietnam, Indonesia, Thailand: Low Pressure AAC Aluminum‑alloy stranded wire, bulk procurement for rural electrification projects—prioritizing low cost. + CE Certification;
2. Middle East: Saudi Arabia, Algeria – High Temperatures AAAC Heat-resistant aluminum stranded wire, designed for desert sandstorm conditions, requires a highly oxidation‑resistant coating.
3. Ethiopia and Kenya in Africa: ACSR Steel-core stranded conductors for long-distance cross-border power transmission, with high demand for large‑tonnage products. FOB Port spot;
4. Europe, Germany, France: 1350 High-purity aluminum stranded wire, strictly ROHS 、 IEC Standards and a high demand for small-batch samples.

V. Core Product Knowledge for Selection (Avoiding Common Pitfalls in Procurement)

1. Short-range, low voltage, and budget‑constrained: choose 1060 Pure aluminum JL Stranded wire;
2. Long-distance high voltage, reduced line losses: 1350 High-purity aluminum / ACSR Steel-core stranded wire;
3. Photovoltaic and wind power, transmission line capacity upgrades, high-temperature environments: 6101 AAAC Heat-resistant aluminum alloy stranded wire;
4. Coastal areas with high salt spray and frequent rainfall: Apply an additional anti-corrosion passivation surface treatment.
5. High-altitude icing and large-span mountain crossings: thickened galvanized steel core ACSR Stranded wire.

Market Trend Supplement

In China, the new 2026 national standard has been implemented, leading to the gradual phasing out of low-purity recycled aluminum stranded conductors from grid‑procurement tenders. Meanwhile, overseas installations of new‑energy capacity continue to expand, with heat‑resistant AAAC stranded conductors posting an annual growth rate of 15% and emerging as a top export category. Buyers are no longer focusing solely on unit price; material quality, manufacturing processes, certifications, and the completeness of technical documentation have become key criteria for supplier selection.