ISO 13680:2024 PDF

Overview

ISO 13680:2024 - "Oil and gas industries including lower carbon energy - Corrosion‑resistant alloy seamless products for use as casing, tubing, coupling stock and accessory material - Technical delivery conditions" - defines technical delivery conditions for seamless corrosion‑resistant alloy products used as casing, tubing, coupling stock and accessory material in oil, gas and lower‑carbon energy applications. The standard covers two product specification levels (PSL‑1 as the baseline and PSL‑2 with additional requirements for combined corrosion and cracking resistance) and five product groups spanning martensitic, duplex, austenitic (iron‑base), nickel‑base and age‑hardened nickel‑base alloys.

Key technical topics and requirements

ISO 13680:2024 addresses manufacturing, material, testing and delivery controls. Major topics include:

• Product groups:

  • Group 1: martensitic / martensitic‑ferritic stainless alloys
  • Group 2: ferritic‑austenitic (duplex / super‑duplex) stainless alloys
  • Group 3: austenitic iron‑base stainless alloys
  • Group 4: austenitic nickel‑base alloys
  • Group 5: bar only, age‑hardened nickel‑base alloys (Annex F)

• Product specification levels: PSL‑1 (baseline) and PSL‑2 (additional corrosion and cracking resistance requirements referencing Annex G and qualification methods in ISO 15156 / NACE MR0175).

• Manufacturing process controls: melting practices, forming, pipe end sizing, straightening, validation of critical processes, traceability and manufacturing procedure qualification.

• Material requirements: chemical composition, tensile and hardness properties, microstructure, corrosion properties (including pitting considerations for duplex alloys), and surface condition.

• Mechanical testing: Charpy V‑notch impact and flattening tests (including low‑temperature requirements for group 2), tensile tests, hardness tests and associated specimen selection and criteria.

• Dimensions and tolerances: outside diameter, wall thickness, mass, length, straightness, drift and product end conditions.

• Inspection, testing and marking: test equipment, test frequency, chemical analysis, chromium depletion tests, marking of tubing and casing after threading, process control plans and traceability.

• Exclusions: connection design and explicit demonstration of conformity to ISO 15156‑3:2020 or NACE MR0175‑2021 for material altered by end sizing, connection manufacture or welding are outside the scope.

Practical applications and who uses this standard

ISO 13680:2024 is intended for manufacturers, material suppliers, procurement engineers, quality and inspection teams, and operators in the oil, gas and lower‑carbon energy sectors who specify or supply corrosion‑resistant seamless casing and tubing. Typical uses include:

• Specifying delivery requirements for corrosion‑resistant casing, tubing and coupling stock.
• Establishing manufacturing and testing programs for stainless and nickel‑base seamless products.
• Ensuring traceability, marking and acceptance criteria for downhole tubulars and accessory material.

Related standards

• ISO 15156 series (materials for sour service) - referenced for PSL‑2 qualification and environment/cracking resistance.
• NACE MR0175 / MR0103 - industry guidance for material selection in H2S environments (duplex/austenitic and nickel alloys).

Keywords: ISO 13680:2024, corrosion‑resistant alloy, casing, tubing, coupling stock, oil and gas, duplex stainless, nickel‑base, PSL‑1, PSL‑2, ISO 15156, NACE MR0175, technical delivery conditions.