GB/T 1835-2023 in English
VALIDSeries 1 freight containers—Corner fittings technical specifications
- Issued on:2023-11-27
- Implemented on:2024-03-01
- File Format:PDF
- Delivery:Via email within 5 business days
$388.00
《GB/T 1835-2023系列1集装箱 角件技术要求》由TC6（全国集装箱标准化技术委员会）归口，主管部门为国家标准委。
Introduction
Core changes in the standard revision
| Technical dimensions | 2006 edition | 2023 edition | Impact of changes |
|---|---|---|---|
| Scope of application | Basic corner fittings only | Newly added 45ft container intermediate corner fittings | Expanded multimodal transport adaptability |
| Dimension specifications | Including imperial dimensions | Fully adopt the metric system | Unified measurement system |
| Mechanical properties | Yield strength ≥ 235MPa | Increased to 275MPa | Enhanced structural safety |
Detailed explanation of key technical requirements
4.1 Structural specifications
The standard clearly requires:
- Each container must be equipped with 4 top corner fittings (2 left + 2 right)
- 45ft container requires an additional 8 middle corner fittings (4 top + 4 bottom)
- Added Figure 2 to show the layout of middle corner fittings
4.3 Manufacturing process
| Parameters | Requirements | Testing methods |
|---|---|---|
| Surface roughness | Ra≤25μm | Profilometer detection |
| Welding surface arc | ≤2mm | Radius gauge measurement |
| Squareness error | ≤0.5mm | Three-coordinate detection |
4.5 Load standard
Actual case: Analysis of a hoisting accident at a certain port shows that the vertical limit load of 250kN requirement added in the 2023 version can effectively prevent the deformation and failure of corner fittings in extreme weather.
Implementation suggestions
- Manufacturers need to update molds to adapt to the newly added structure of intermediate angle pieces
- It is recommended to use ASTM A609 standard for ultrasonic flaw detection
- Rust-proof oil should be used to protect the weld surface during transportation
Background of standard evolution
This version of the standard is modified to adopt ISO 1161:2016. The main technical differences include:
- Add 7 China-specific test methods (GB/T 223 series)
- Strengthen the requirements for weld surface size control
- Delete inapplicable clauses such as railway tests
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