T/CIET 1636-2025 Active Group standards

T/CIET 1636-2025 The evaluation method for fracture toughness of hydrogen-transport pipeline steel

Publish Date: 2025-08-15 Implement Date: 2025-08-15 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/CIET 1636-2025

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Orthopaedic surgery, orthopaedic instruments

ICS Name: Mechanical testing of metal materials

Publish Date: 2025-08-15

Implement Date: 2025-08-15

Scope

This document specifies the symbols, basic requirements, evaluation methods, test methods, and evaluation reports for the fracture toughness evaluation of hydrogen transportation pipeline steel. This document is applicable to the material research and development phase for assessing the crack propagation resistance of seamless or straight-seam submerged arc welded hydrogen transportation pipeline steel in a hydrogen environment; to the production inspection phase for verifying whether the batch-produced pipeline steel meets the service requirements in a hydrogen environment; and to the service safety assessment phase for conducting periodic testing and risk analysis of the residual fracture toughness of in-service hydrogen transportation pipelines. This document specifies the symbols, basic requirements, evaluation methods, test methods, and evaluation reports for the fracture toughness evaluation of hydrogen transportation pipeline steel. This document is applicable to the material research and development phase for assessing the crack propagation resistance of seamless or straight-seam submerged arc welded hydrogen transportation pipeline steel in a hydrogen environment; to the production inspection phase for verifying whether the batch-produced pipeline steel meets the service requirements in a hydrogen environment; and to the service safety assessment phase for conducting periodic testing and risk analysis of the residual fracture toughness of in-service hydrogen transportation pipelines.