GB/T 46446.1-2025 Active
GB/T 46446.1-2025 Petroleum,petrochemicals and natural gas industries—Internal coating and lining of carbon steel process vessels—Part 1:Technical requirements
Abstract
This document specifies the minimum technical requirements for the surface treatment, materials, construction, inspection, and testing of coating and lining systems in carbon steel process containers used in the oil, petrochemical, and natural gas industries to withstand complex working conditions (significant pressure/temperature changes and/or potential corrosion conditions or corrosion processes, corrosive chemicals, etc.).
This document applies to the coating and lining of carbon steel process containers, as well as the repair of coating and lining systems with defects and performance degradation.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 46446.1-2025 |
| CCS | Oil drilling and extraction equipment and instruments |
| ICS | Exploration and drilling equipment |
| Implement Date | 2026-05-01 |