API 9A pdf download Specifcation for Wire Rope
This standard specifies the minimum requirements and terms of acceptance for the manufacture and testingof steel wire ropes for the petroleum and natural gas industries. The following products are covered by thisspecification:
— bright- or drawn-galvanized wire rope,— well-measuring wire, and
– well-measuring strand.
Typical applications include tubing lines, rod hanger lines, sand lines,cable-tool drilling and clean out lines, cabletool casing lines, rotary drilling lines, winch lines, horse head pumping unit lines , torpedo lines, mast-raising lines,guideline tensioner lines, riser tensioner lines,and mooring and anchor lines. Wire ropes for lifting slings andcranes, and wire for well-measuring and strand for well-servicing, are also included.
The minimum breaking forces for the more common sizes, grades, and constructions of stranded wire rope notexceeding 2160 grade and well measuring wire are given in tables.However, this standard does not restrict itselfto the classes covered by those tables. Other types, such as wire ropes with compacted strands and compacted(swaged) wire ropes, may also conform with its requirements. The minimum breaking force values for these wireropes and wire are provided by the manufacturer.
For information only, other tables present the minimum breaking forces for large diameter wire ropes and spiralropes (i.e. spiral strand and locked coil), while approximate nominal length masses for the more common wirerope constructions and large diameter stranded and spiral ropes are also given.
The following referenced documents are indispensable for the application of this document. For dated references,only the edition cited applies.For undated references, the latest edition of the referenced document (includingany amendments) applies.
ASTMA931,Standard Test Method for Tension Testing of Wire Ropes and Strand
IS0 2232:1990,，Round drawn wire for general purpose non-alloy steel wire ropes and for large diameter steelwire ropes-Specifications
ISO 4345,Steel wire ropes—Fiber main cores-Specification
ISO 4346,Steel wire ropes for general purposes—Lubricants—Basic requirementsISo 6892-1,Metallic materials—Tensile testing—Method of test a room temperatureISO 7800,Metalic materials—Wire —Simple torsion test
ISO 7801, MetaMic materials—Wire —Reverse bend test
ISO 17893,Steel wire ropes—Vocabulary,designation, and classification
3Terms and Definitions
For the purposes of this document, the terms and definitions given in ISO 17893 apply.4Requirements
The wires for stranded wire ropes and well-servicing strand of carbon steel shall, before fabrication, conform tothe diameter, tensile, torsion, and when applicable, zinc-coating requirements specified in Annex A.
The methods of test for wires of tensile strength grades 1370 N/mm?,1570 N/mm?,1770 N/mm?, 1960 N/mm?,and 2160 N/mm2 shall be in accordance with those given in lSO 2232.
The methods of test for wires of tensile strength grades Levels 2,3,4, and 5 shall be in accordance with AnnexB.
For those wire ropes where a wire rope grade is applicable, the tensile strength grade of the wires shall besubject to the limits given in Table 1.
NOTE The minimum breaking force values of those ropes of grades 1770,1960, and 2160 as covered by Tables C.1through C.16 are calculated on the basis of wire rope grade and not individual wire tensile strength grades or levels.
For those wire ropes (e.g. larger diameter wire ropes) where a wire rope grade is not applicable, the tensilestrength grades of the wires shall be one, or a combination, of those given in Annex A.
All wires of the same nominal diameter in the same wire layer shall be of the same tensile strength grade.
Well-measuring wire and wires used in the manufacture of well-servicing strand shall normally be of carbon steelbut other materials (e.g. stainless steel) may be used.
The purchaser should specify any particular material requirements.4.1.2 Core
Cores of stranded ropes shall normally be of steel or fiber, although other types, such as composites (e.g. steelplus fibers or plastics) or cores made of solid polymer, may also be supplied.
The purchaser should specify the type of core.
Fiber cores shall conform to lSO 4345.