GB/T 42858-2023 Active
GB/T 42858-2023 Corrosion-resistant alloy coiled tubing
Abstract
This document specifies the ordering, materials, manufacturing, inspection and testing, and marking of corrosion-resistant alloy continuous tubing.
This document is applicable to the manufacture and inspection of corrosion-resistant alloy continuous tubing (hereinafter referred to as "tubing") used in oil and gas wells. The steel grades of the tubing in this document include CT55-CRA, CT60-CRA, CT70-CRA, CT80-CRA, CT90-CRA, CT100-CRA, and CT110-CRA. The outer diameter of the tubing ranges from 25.4 mm to 88.9 mm.
Note: The types of corrosion-resistant alloy materials in this document include martensitic or martensitic/ferritic stainless steel, ferritic-austenitic stainless steel, iron-based corrosion-resistant alloys with austenitic microstructure, and nickel-based corrosion-resistant alloys with austenitic microstructure.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 42858-2023 |
| CCS | Oil drilling and extraction equipment and instruments |
| ICS | Exploration and drilling equipment |
| Implement Date | 2023-12-01 |