ISO 10425:2023

Overview

ISO 10425:2023 - Steel wire ropes for the petroleum and natural gas industries - Minimum requirements and terms of acceptance - defines minimum manufacturing, testing and acceptance requirements for steel wire ropes up to rope grade 2160. The standard covers stranded, spiral and large-diameter ropes used in oil & gas field equipment, and provides tabulated minimum breaking forces for the more common sizes, grades and constructions. It also specifies documentation, sampling, test methods and marking/packaging requirements.

Key topics and technical requirements

• Scope and applicability: ropes for tubing lines, rod hanger lines, sand lines, cable‑tool and rotary drilling, winch lines, pumping units, torpedo lines, riser and guideline tensioners, mooring/anchor lines, lifting slings/cranes, well‑measuring wire and well‑servicing strand.
• Materials: requirements for wire, core types and lubricants (referenced material specifications).
• Wire rope manufacture: rules on wire joints, preformation/postformation, construction, rope grade, wire finish and lay direction/type.
• Dimensions and tolerances: nominal diameters, tolerances, lay length and diameter measurement differences (including compacted/swaged ropes).
• Breaking force: tabulated minimum breaking forces for common stranded constructions; manufacturers provide values for types not listed. Informative tables for large‑diameter stranded and spiral ropes are included.
• Verification & test methods: tests for diameter, breaking force, wires taken from ropes, well‑measuring wire and well‑servicing strand; facilities and witness testing requirements.
• Documentation: certificate contents, required test results, packaging and marking details.
• Annexes: normative and informative annexes covering wire properties, testing methods, breaking force tables, calculation methods, sampling and type‑testing procedures.

Practical applications and users

ISO 10425:2023 is intended for:

• Rope manufacturers ensuring product conformity and declaring minimum breaking forces.
• Petroleum and natural gas operators, rig designers and OEMs selecting ropes for drilling, well servicing, hoisting and mooring applications.
• Procurement, inspection and quality assurance teams who require acceptance criteria, test methods and certification details.
• Testing laboratories and third‑party inspectors conducting mechanical and dimensional tests specified by the standard.

Using ISO 10425 helps maintain consistent safety margins, interoperability with legacy equipment (including converted SI/Imperial sizes) and traceable test documentation for critical oil & gas wire rope applications.

Related standards

Normative references in ISO 10425:2023 include (among others):

• ISO 2232, ISO 4345, ISO 4346, ISO 6892‑1, ISO 7500‑1, ISO 7800, ISO 7989‑2, ISO 17558, ISO 17893.

Keywords: ISO 10425:2023, steel wire ropes, petroleum and natural gas, minimum requirements, breaking force, wire rope testing, rope grade 2160, well‑measuring wire.