Products Description
S550GD+Z armored galvanized steel strip is an ultra-high strength hot-dip galvanized steel strip designed for mechanical protection in harsh environments. Its excellent tensile strength (≥550 MPa) and thick galvanized layer (Z180~Z275) can effectively resist impact, corrosion and external damage, and is widely used in cable armor, pipeline protection and special equipment protection.
S: Structural Steel
550: Minimum yield strength 550MPa (actual 550-700MPa)
GD: Galvanized by Hot-Dip
+Z: Chromate Passivation

Technical Parameters
S550GD+Z Steel Strip for Armoured Cable
|
Item |
Parameters |
|
Material |
Low carbon microalloy steel (carbon content ≤ 0.15%) |
|
Galvanized layer |
Double-sided Z180~Z275 (customizable) |
|
Thickness |
0.5~3.0 mm (±0.05 mm tolerance) |
|
Width |
20~1000 mm (customizable in strips) |
|
Surface treatment |
+Z (passivation), +O (oiling), +ZF (fingerprint resistance) optional |
|
Implementation standard |
EN 10346, GB/T 2518, JIS G 3321 (optional) |
Features
S550GD+Z armored steel strip
1. Ultra-high strength, reliable protection
Yield strength ≥550 MPa, tensile strength 550~700 MPa, far exceeding ordinary galvanized steel strip (such as S350GD+Z).
Suitable for heavy cable armor (such as mining, submarine cables) and high-pressure pipeline protection, effectively resisting mechanical damage and external pressure.
2. Excellent corrosion resistance
Double-sided hot-dip galvanizing (Z180~Z275), uniform and dense zinc layer, salt spray test ≥1000 hours, suitable for humid, high-salt or chemical environments.
+Z passivation treatment (optional oiling +O) further extends service life and reduces maintenance requirements.
3. Excellent processing performance
Low-carbon micro-alloy substrate, balanced strength and formability, supports stamping, bending, welding and other processing processes.
Provide straight steel strip or corrugated steel strip (enhanced flexibility, adapt to complex laying environments).
4. Comply with international standards
Implementation standards: EN 10346 (European standard), GB/T 2518 (national standard).
Customizable: thickness (0.5~3.0 mm), width (20~1000 mm), coating weight (Z60~Z275).
Application
S550GD+Z Galvanized Steel Tape for Armoring
|
Fields |
Application scenarios |
Recommended coatings |
|
Power cables |
Mining cables, submarine cables, high-voltage transmission cable armor |
Z180~Z275 |
|
Pipeline protection |
Outer layer protection of oil/gas pipelines, chemical pipelines (anti-corrosion and third-party damage) |
Z180+PE coating |
|
Special equipment |
Engineering machinery armor, military protective plates, storage shelf reinforcements |
Z275 (extreme environment) |
|
Construction engineering |
Steel structure connectors, seismic brackets, bridge protective layers |
Z120~Z180 |

Services
Packaging: steel coil (inner diameter 508/610 mm, outer diameter customized) + anti-rust paper wrapping.
Quality assurance: provide material certification (MTC), third-party inspection report (SGS/BV).
Process guarantee: fully automatic galvanizing line, zinc layer uniformity reaches more than 98%.
Technical support: free processing parameter suggestions (stamping, welding process optimization).



about Us
GNEE's products have been exported to many countries in the world, including Europe, Africa, Southeast Asia, the Middle East, Russia, the United States, Australia, etc. We have advanced production equipment, scientific and reasonable management, strict quality inspection, and reasonable product prices. We accept OEM or ODM.
If you are interested in our products or company, please feel free to contact us for more details!



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