High-Strength Steel Core Wire for ACSR - Precision Engineered for Overhead Power Lines

Superior Galvanized Steel Wire Meeting Global Standards

Our steel core wire for Aluminum Conductor Steel Reinforced (ACSR) cables is manufactured to ASTM B498, ASTM A475, and BS183 specifications, delivering unmatched tensile strength and corrosion resistance for overhead transmission lines up to 500kV. With zinc coating options from Class A to Class C (210-810g/m²), it ensures 30+ years of service life even in coastal and industrial environments.

Technical Specifications & Performance Data

Parameter	Our Product	Industry Standard
Wire Diameter	1.57mm–6.00mm (±0.03mm)	1.50mm–5.50mm (±0.05mm)
Zinc Coating	Class A: 210-270g/m² (Smooth) Class B: 420-540g/m² (Standard) Class C: 630-810g/m² (Heavy)	Class B typically 220-460g/m²
Tensile Strength	Grade A: 1,380-1,450MPa Grade B: 1,280-1,380MPa Grade C: 1,240-1,310MPa	ASTM B498 min: 1,240MPa
Elongation	3%-4% (1.6mm-4.8mm)	BS183 requires ≥2.5%
1% Proof Stress	Grade A: 1,170-1,310MPa Grade B: 1,100-1,240MPa Grade C: 1,070-1,170MPa	Critical for sag calculation

Key Advantages for Power Line Projects

1. Corrosion Protection Tailored to Environments

Salt Spray Performance:

Class C coating lasts 15+ years in coastal zones (vs. 8 years for Class A) per ISO 9224

2. Mechanical Reliability

Fatigue Resistance: Survives 50M+ vibration cycles (IEC 61395 test)

Creep Control: 0.02% elongation after 10 years at 20% rated tension

3. Customization & Traceability

Lead Hardening Options: Adjust strength grades without compromising ductility

Full Documentation: Mill test reports + ISO 9001/TS 16949 batch tracking

Application-Specific Recommendations

Environment	Recommended Specs	Rationale
Coastal Transmission	Class C coating / Grade B strength	Maximum salt fog resistance
Mountainous Areas	Grade A strength / Class B coating	High tensile for ice/wind loads
Industrial Zones	Class B coating + optional PVC sheath	Chemical/acid rain protection