This standard prescribes the classification, order content, material, technical requirements, inspection and test, acceptance method, packaging, marking and quality certificate of steel wire ropes for important purposes.
This standard is applicable to the round strand and shaped strand wire ropes for mine hoisting, blast furnace winding, large-scale moulding, petroleum drilling, large-scale hoisting, heavy hoisting, ropeway, ground cable car, shipping and offshore facilities.
2 Normative References
The following documents contain contents which, through reference in this text, composite provisions of this standard. For dated reference, subsequent amendments (excepting corrigenda content) to, or revisions of, any of these publications do not apply. Parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 228 Evaluation of measurement uncertainty of tensile test for metal (GB/T 228-2002, ISO 6892:1998, eqv)
GB/T 238 Metallic materials wire-Reverse bend test (GB/T 238-2002, ISO 7801:1984, idt)
GB/T 239 Metallic materials wire torsion test (GB/T 239-1999, ISO 7800:1984, ISO 9649:1990, eqv)
GB/T 2104 Steel wire ropes-Packing, marking and certificate-General requirements
GB/T 2973 Zinc-coated steel wire-Test method for weight of zinc coating
GB/T 8170 Rules for rounding off of numberical values
GB/T 8358 Method of breaking tensile test for steel wire ropes (GB/T 8358-1987, ISO 3108:1974, eqv)
GB/T 8706 Steel wire ropes－Terminology (GB/T 8706-1988, ISO 2532:1974, eqv)
GB/T 8707 Steel wire rope－Standard designations (GB/T 8707-1988, ISO 3578:1980, idt)
GB/T 8919 Steel wire for rope
GB/T 15030 Steel wire ropes－Sisal main cores
YB/T 081 Rule for rounding off of numerical values and judgment of testing values for technical standards of metallurgy
SH/T 0387 Steel wire rope surface grease
SH/T 0388 Fiber core grease for wire rope
3 Classification
3.1 The steel wire ropes are classified according to their strand section, number of strands and the outer steel wire number of strand (see Table 1). In round strand and shaped strand wire ropes, if the demander does not clearly require the steel wire ropes with certain structures, in the same group, the structural selection is confirmed by the supplier.
