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Steel wire rope is a flexible steel cord that is extremely strong. Typical uses of steel wire rope are: hoisting, towing, and anchoring heavy loads. The core is the foundation of a wire rope. The three most commonly used core designations are: fiber core (FC), independent wire rope core (IWRC), and wire strand core (WSC).
1. Nominal diameter and tolerance
2. Construction / Class / Brand name
3. Material (carbon steel or stainless steel)
4. Finish (bright or PVC / Nylon coated)
5. Tensile Strength
6. Minimum Breaking load requirement
7. Core – Fibre / IWRC / WSC
8. Lay – eg. Right-hand regular lay
9. Lubrication
10. Packing – wooden reel/ steel reel / Coils.
11. Particulars of fittings
12. Performed / Non-performed
13. Exact length per reel/coil etc (special length tolerance, if any)
14. Delivery time
15. Special requirements
16. Pre-stretching
17. Third-party inspection
Note:- It is always important to state the application of the rope other than the above points to ensure the correct rope for your purpose.
As a common transmission force device, stainless steel link chain is designed to reduce friction by the "chain" design of the hyperbolic arc. It is used in places where the pulling force is relatively large and the running speed is relatively slow, which is obviously superior to the belt drive. Stainless steel link chains are particularly suitable for high and low temperature applications or cleaning occasions.
When stainless steel lifting chains have rust spots on the surface, they should be cleaned up in time so that they will not cause fatal damage to the chain. Rust spots appear on the stainless steel lifting chain due to incorrect cleaning and maintenance methods. To remove the rust spots on the surface of the stainless steel chain, pickling paste can be used to improve the surface finish. It is better to use a brush to wash it several times during the treatment process.
1. Strength-resistance to breaking The wire rope should be strong enough to handle the maximum potential load including safety factors.
2. Resistance to bending fatigue Fatigue is caused by repeatedly bending rope around drums, sheaves, etc. A wire rope with strands made up of many small wires will be more resistant to fatigue, but less resistant to abrasion.
3. Resistance to vibrational fatigue Energy is absorbed at the end fittings or at the tangent point where the rope contacts the sheave.
4. Resistance to abrasion Abrasion occurs when a rope is dragged over the ground or other surfaces. A wire rope with strands made of fewer, larger wires will be more resistant to abrasion, but less resistant to fatigue.
5. Resistance to crushing During use, a wire rope may encounter crushing forces or be struck against hard objects. This can cause the rope to become flattened or distorted, resulting in premature breakage. Wire rope must have sufficient lateral stability to withstand the crushing pressures it may encounter. Regular lay ropes have greater lateral stability than Lang’s lay, and six strand wire ropes have greater lateral stability than eight strand.
6. Reserve strength Combined strength of all the wires contained within the strands.
1. What is the cost difference between 304 and 316 stainless steel?
The cost difference in the stainless 304 vs 316 comparison is a result of its chemical composition. 316 stainless steel is costlier than 304 stainless steel. The 2% molybdenum and the increase in nickel content increase manufacturing costs. Also, it gives the grade a better corrosion resistance which increases its value/cost.
2. Is 304 or 316 stainless better?
The answer is not straightforward. There are many grades of stainless steel tailored for unique purposes. Therefore, it is incorrect to say that one of the two stainless steel is better than the other. Choosing the right one depends on your projects and the required mechanical properties, chemical properties, and features.
3. Is 316 stainless steel rustproof?
Yes, 316 stainless steel has both anti-rust and anti-corrosive properties due to the presence of nickel, molybdenum, and chromium. Therefore, it is suitable for working in an environment that supports rusting and corrosion.
