Tensile Strength Of Wire Rope

Nominal strength in kg.

Tensile strength of wire rope.

6x19 class wire ropes with 15 26 wires per strand. The tensile strength is the load at which a new rope tested under laboratory conditions can be expected to break. Starlift xtra wire rope has one of the highest strength to diameter ratios on the market. To estimate the minimum tensile strength of a new rope reduce the approximate average by 20.

The wires of wire rope are made of high carbon steel. Recommended safe working load a 5 1 design factor lbs recommended safe working load a 5 1 design factor kg recommended safe working load a 3 5 1 design factor lbs. Tensile strength is a measurement of the force required to pull something such as rope wire or a structural beam to the point where it breaks. Wire rope manufacturers calculate a theoretical minimum breaking strength of ropes based on the grade of the wires and the metallic cross sectional area of the rope this will be reported as the.

The same standard requires a design factor of 5 0 for rotation resistant ropes. These tests are done by incrementally increasing the load that a rope is expected to carry until the rope breaks. Asme b30 5 mobile and locomotive cranes requires a design factor of 3 5 for 6 strand hoist ropes. These carbon steel wires come in various grades.

These wire ropes come in fiber core or iwrc variations with diameters ranging from to 1 1 3 and tensile strengths of 2 74 tons to 69 4 tons. Nominal strength in short tons. Nominal strength in metric tons. Wire ropes are used to carry tensile loads and so the ultimate tensile strength of the rope is the most important property of a rope.

Wire ropes are usually made of extra improved plow steel eips or extra extra improved plow steel eeips which roughly equivalents to a wire tensile strength of 1960n mm and 2160n mm. Rope strength is the approximate average for new rope tested under astm test method d 6268. We maintain a broad selection of wire ropes available for immediate delivery including. There are 3 typical definitions of tensile strength.

Rope diameter minimum breaking strength safe load weight in mm lb f kn lb f kn lb m ft kg m 1 4. Nominal strength in pounds. 6x37 class wire ropes with 27 46 wires per strand. The tensile strength of a material is the maximum amount of tensile stress that it can take before failure for example breaking.

All ropes of the same size grade and core offer somewhat similar minimum breaking force characteristics and weight per foot though they do differ depending on the construction type and materials used.