GB/T 41354-2022 in English
VALIDHydraulic fluid power—Plain-end,seamless and welded precision steel tubes—Dimensions and nominal working pressures
- Issued on:2022-03-09
- Implemented on:2022-10-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$97.00
| Standard No: | GB/T 41354-2022 |
| Document status: | VALID |
| Title in English: | Hydraulic fluid power—Plain-end,seamless and welded precision steel tubes—Dimensions and nominal working pressures |
| Title in Chinese: | 液压传动 无缝或焊接型的平端精密钢管 尺寸与公称压力 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2022-03-09 |
| Implemented on: | 2022-10-01 |
| ICS Classification: | 23.100.40-Piping and couplings |
| Chinese Classification: | J20-Hydraulic and pneumatic device |
| Professional Classification: | GB-National Standard |
| Related Keywords: | precision steel pipes
precision steel tubes dimensions nominal pressure parameter type seamless steel pipe steel pipe |
| Related Topics: | Nominal pressure
precision balance Precision steel pipe precision scale flat end GBT41354 GB/T 41354-2022 Precision weighing Precisely weighed 20mg |
《GB/T 41354-2022液压传动 无缝或焊接型的平端精密钢管 尺寸与公称压力》由TC3（全国液压气动标准化技术委员会）归口，TC3SC1（全国液压气动标准化技术委员会液压传动和控制分会）执行，主管部门为中国机械工业联合会。
Introduction
Analysis of the core content of the standard
GB/T41354-2022, as the technical specification for precision steel pipes for hydraulic transmission systems, mainly stipulates the technical parameters of two types of steel pipes:
| Parameter type | Seamless steel pipe | Welded steel pipe |
|---|---|---|
| Outer diameter tolerance | ±0.15mm | ±0.20mm |
| Minimum tensile strength | ≥360MPa (normalized state) | |
| Pressure calculation basis | Burst pressure: nominal pressure = 4:1 | |
Key technical differences
Compared with ISO10763:2020, this standard makes 3 important adjustments:
- GB/T2351 is used to replace ISO4397 as the outer diameter specification
- GB/T17446 terminology standard is quoted to replace ISO5598
- Redundant ISO3305 references are deleted and data is directly integrated
Pressure calculation model
Burst pressure calculation formula:
pb = Rm·ln[D/(D-2t)]
The nominal pressure takes a safety factor of 1/4 of the burst pressure to ensure system reliability.
Application Cases
When a hydraulic system uses a steel pipe with an outer diameter of 22mm and a wall thickness of 1.5mm, according to the standard calculation:
Nominal pressure = 62.4MPa/4 = 15.6MPa, which meets the high-pressure circuit requirements of engineering machinery.
Implementation Suggestions
- When purchasing, suppliers should be required to provide material certificates that comply with GB/T41354
- The system design pressure shall not exceed 80% of the nominal pressure
- Regularly check the change rate of steel pipe wall thickness (recommended ≤5%)
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