EN ISO 13680:2025 PDF

Overview

EN ISO 13680:2025 (ISO 13680:2024) specifies technical delivery conditions for corrosion-resistant alloy seamless products used as casing, tubing, coupling stock and accessory material in the oil and gas industries, including lower carbon energy. The standard covers two product specification levels: PSL-1 (baseline) and PSL-2 (additional requirements for corrosion and cracking resistance when qualified per Annex G and the ISO 15156 series). It is applicable to five product groups spanning martensitic, duplex/super‑duplex, austenitic (iron‑base), nickel‑base, and age‑hardened nickel‑base bar materials.

Key technical topics and requirements

The standard sets out manufacturer and purchaser obligations and technical requirements without addressing pipe connection design. Main topics include:

• Product groups and grades: Group 1 (martensitic/martensitic‑ferritic), Group 2 (ferritic‑austenitic duplex/super‑duplex), Group 3 (austenitic iron‑base), Group 4 (nickel‑base austenitic), Group 5 (age‑hardened nickel‑base bar).
• Product Specification Levels (PSL‑1 / PSL‑2): PSL‑2 is optional and intended for environments requiring enhanced cracking resistance per Annex G and ISO 15156 (NACE MR0175 equivalent).
• Manufacturing process controls: melting practices, forming, pipe end sizing, straightening, validation of processes, manufacturing procedure qualification tests, and traceability.
• Material requirements: chemical composition, tensile properties, hardness, microstructure and surface condition requirements.
• Mechanical and impact testing: Charpy V‑notch testing (including specimen selection, orientation, absorbed energy evaluation and critical thickness considerations), flattening tests and other mechanical property verifications.
• Corrosion resistance: pitting and other corrosion property requirements (noting limitations on which grades can meet PSL‑2 cracking resistance).
• Dimensional and marking provisions: outside diameter, wall thickness, tolerances, lengths, mass, and marking of tubing and casing after threading. Accessory products and coupling stock from bar are covered (Annex F).

Practical applications and users

This standard is intended for:

• Manufacturers and mills producing seamless corrosion‑resistant tubing, casing, coupling stock and accessory parts.
• Purchasing and procurement teams specifying material acceptance criteria for oil, gas and lower carbon energy projects.
• Drilling, completion and production engineers selecting materials for well integrity, sour service and corrosive environments.
• Quality assurance, inspection and testing laboratories responsible for verifying chemical, mechanical and corrosion properties.
• Standards and compliance teams ensuring materials meet PSL and traceability requirements.

Typical applications include well casing, production tubing, completion components and accessory parts in hydrocarbon and low‑carbon energy wells where corrosion and cracking performance is critical.

Related standards

• ISO 15156 series (sour service cracking resistance) - equivalent to NACE MR0175 per the document.
• NACE MR0175 (legacy reference for sour service).
• ISO 4948‑1 and ISO 4948‑2 (classification of corrosion‑resistant alloys).
• ISO 13680:2024 / EN ISO 13680:2025 (this document).

Keywords: corrosion-resistant alloy seamless products, casing tubing coupling stock, oil and gas standards, PSL-1 PSL-2, ISO 15156, NACE MR0175, duplex stainless, nickel-based alloys, Charpy V-notch, material traceability.