If the diameter of anchor chain reinforcement is as large as that of steel wire rope, it must be that the tension of steel wire rope is large. Anchor chain steel bars are welded together after hot rolling, and the strength is estimated to be 800- 1000MPa, while steel wires are twisted with cold-drawn steel wires, and the strength of steel wires after cold-drawing is mostly between 1850-2500MPa. Cold-drawn steel wire is called high-efficiency steel for reference only.

China ranks first in the world with an annual output of 6,543,800 tons of steel wire rope. The main varieties of wire rope are as follows:

1. Phosphate coated steel wire rope (patented technology). After the steel wire is phosphatized by manganese series or zinc-manganese series, the wear resistance, corrosion resistance and rust prevention ability of the steel wire are comprehensively improved. The compound action of phosphating film and grease can effectively inhibit fretting wear, and the fatigue life is about 3 times that of smooth steel wire rope with the same structure. Fatigue life can be verified by fatigue test (it is most credible to do fatigue test in person). It is an upgraded product of smooth steel wire rope, and can also replace electroplating first and then thinning zinc.

2. Galvanized steel wire rope, including hot dip galvanizing and electro-galvanizing. Generally speaking, the galvanized zinc layer is thick and the galvanized zinc layer is thin.

3. Stainless steel wire rope, mainly made of 304 or 3 16 stainless steel, has excellent anticorrosion effect, but it is expensive.

4. Based on plastic-coated steel wire rope and carbon steel wire rope, the outer layer is coated with polyethylene, polypropylene or nylon.

5. Due to the sharp drop in market demand, smooth steel wire rope will be completely replaced by phosphating coated steel wire rope.

6. Relevant standards for mooring wire ropes in offshore engineering are being formulated and approved.

For use in atmospheric environment, phosphating coated steel wire rope is preferred, hot dip galvanized-phosphating double-coated steel wire rope is preferred in heavy corrosion environment, and marine steel wire rope is preferred in seawater. Please note that the name of wire rope, such as phosphating coated wire rope or 3 16 stainless steel wire rope, must be indicated on the purchase invoice to protect your legitimate rights and interests. In addition, patented products will generally mark the patent number on the outer packaging of wire rope for reference only.