6V×34 Class Shaped Strand Wire Rope

6V×34 Class Shaped Strand Wire Rope

Product Introduction:

The 6V×34 Class Shaped Strand Wire Rope is a premium‑grade steel wire rope designed specifically for the most demanding marine and offshore lifting operations. Manufactured in full compliance with the Chinese national standard GB/T 8918‑2006 (Steel wire ropes for important purposes), this rope combines advanced strand geometry with a higher wire count per strand to deliver superior strength, fatigue resistance, and operational safety in harsh saltwater environments.

Construction And Design Excellence:

The designation 6V×34 indicates a rope composed of six strands, each featuring a triangular (V‑shaped) strand profile and assembled from 34 individual wires. This “flattened‑strand” or “triangular‑strand” configuration offers distinct mechanical benefits over conventional round‑strand ropes. The V‑shaped strands interlock tightly, creating a denser steel cross‑section and a smoother outer surface. This reduces friction against sheaves and drums, minimises wear on both the rope and the equipment, and provides exceptional resistance to crushing and distortion – a critical attribute when handling heavy deck loads or deep‑water mooring tensions.

Compared to the 6V×30 variant, the 6V×34 rope incorporates four more wires per strand, which translates into a finer wire distribution and a higher metallic fill factor. As a result, the rope achieves significantly greater breaking loads for the same nominal diameter, without compromising flexibility or fatigue life. This makes it the preferred choice for vessels that require maximum lifting capacity with minimal rope diameter, such as large container ships, bulk carriers, and offshore supply vessels.

Core Options-Tailored To Your Operation:

To accommodate diverse service conditions, the 6V×34 rope is available with two core types. The Fiber Core (FC) – typically made from polypropylene or natural fibres – offers lighter weight and enhanced flexibility, making it ideal for general‑purpose marine hoisting and winch work where bending over small sheaves is frequent. The Independent Wire Rope Core (IWRC), on the other hand, consists of a separate wire rope strand at the centre, which provides higher overall strength, superior crush resistance, and improved structural stability under extreme loads. The IWRC construction is especially recommended for heavy‑duty towing, deep‑sea salvage, and offshore crane operations, where long service life and reliability are paramount.

Technical Specifications：

The rope is offered in tensile grades from 1,570 MPa to 1,960 MPa (and higher upon request), with nominal diameters ranging from 18 mm to 60 mm as standard, and custom sizes available. The data clearly shows that the 6V×34 rope outperforms many conventional ropes of equal diameter, providing an extra margin of safety for critical marine lifts.

Marine‑Specific Advantages:

This wire rope is engineered to excel in the maritime sector, offering:

1.Enhanced wear life – The triangular strand profile reduces point loading on sheaves, extending both rope and equipment service intervals.

2.Superior fatigue resistance – The higher wire count and improved internal stress distribution minimise wire breaks due to bending fatigue.

3.Excellent corrosion protection – Galvanised or bright finishes are available; galvanised coatings provide robust defence against seawater corrosion.

4.High strength‑to‑weight ratio – Allows the use of smaller‑diameter ropes for given loads, reducing deck storage space and handling effort.

5.Compliance with classification societies – The rope meets or exceeds requirements set by ABS, DNV, LR, BV, CCS, and other leading marine authorities.

Typical Marine Applications:

The 6V×34 Class Shaped Strand Wire Rope is widely deployed in:

*Shipboard cranes and derricks – For loading and unloading cargo in ports and at anchorage.

*Mooring and anchoring systems – Securing vessels to docks, buoys, or offshore platforms.

*Towing and salvage – Ship‑to‑ship towing, harbour assistance, and emergency recovery.

*Offshore supply and drilling – Winch lines, umbilical support, and subsea lifting.

*Fishing and research vessels – Net hoists, trawl warps, and deep‑sea sampling equipment.

Quality And Certification:

Every reel of 6V×34 rope is produced under strict quality control, with certifications including ISO 9001, CE, and type‑approval from major classification societies. The rope is subjected to rigorous proof‑load and bend‑testing to ensure that it consistently meets the breaking load values specified in GB/T 8918‑2006, giving marine operators the confidence they need in the most challenging sea states.