NB/T 11917-2025 Active Industry standards-Energy

NB/T 11917-2025 Diffusion welding heat exchanger

Publish Date: 2025-12-18 Implement Date: 2026-06-18 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: NB/T 11917-2025

Standard Type: Industry standards

Standard Status: Active

is_force_gb: no

CCS Name: Heat exchange equipment

ICS Name: \nHeat exchanger

Publish Date: 2025-12-18

Implement Date: 2026-06-18

Scope

This document is applicable to heat exchangers with a design pressure greater than or equal to 0.1 MPa and less than 100 MPa, where: a) the design pressure of titanium heat exchangers shall not exceed 35 MPa; b) the design pressure of plate-fin heat exchangers shall not exceed 15 MPa. The design temperatures applicable to this document are: a) for steel materials, the allowable operating temperature range specified in GB/T 150.2 for the materials included shall not be exceeded; b) for nickel and nickel alloys, the allowable operating temperature range specified in JB/T 4756 for the materials included shall not be exceeded; c) for titanium and titanium alloys, the allowable operating temperature range specified in NB/T 11270 for the materials included shall not be exceeded.