GB/T 32795-2016 in English
VALIDZinc or zinc alloy coated steel wire for armouring oceaneering cables
- Issued on:2016-08-29
- Implemented on:2017-07-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$136.00
《GB/T 32795-2016海缆铠装用镀锌或锌合金钢丝》由TC183（全国钢标准化技术委员会）归口，TC183SC3（全国钢标准化技术委员会盘条及钢丝分会）执行，主管部门为中国钢铁工业协会。
Introduction
GB/T32795-2016: Interpretation of the national standard for galvanized or zinc alloy steel wire for submarine cable armoring
Analysis of the background of standard formulation and technical evolution
With the increasing demand for marine engineering and submarine communication cables, the technical requirements for armoring materials are also increasing. The formulation of the national standard GB/T32795-2016 "Galvanized or zinc alloy steel wire for submarine cable armoring" aims to standardize the quality and technical indicators of submarine cable armoring materials and ensure their corrosion resistance and mechanical properties in complex marine environments. This standard was proposed by the China Iron and Steel Association and is managed by the National Steel Standardization Technical Committee, which fully reflects the authority and practicality in the industry.
Comparison of standard frameworks and dimensional analysis
| Dimensions | Technical requirements | Scope of application | Standard innovations |
|---|---|---|---|
| Material properties | - Tensile strength: 340MPa to 1900MPa - Elongation after break: ≥5% - Number of torsion: ≥14 times | Offshore engineering optical cables, cables, etc. | For the first time, the aluminum content requirements in zinc alloy coatings were clarified |
| Dimensions and tolerances | - Nominal diameter: ≥2.15mm - Free ring diameter: ≥600mm | Applicable to different specifications of submarine cable armoring needs | Introducing copper sulfate test to evaluate coating uniformity |
| Coating technology | - Galvanized layer weight: ≥215g/m² - Zinc alloy coating aluminum content: ≥4.2% | Guaranteed anti-corrosion performance | Optimized coating adhesion test method |
Professional terminology explanation and practical application cases
Free loop diameter:Put a circle of steel wire on a smooth horizontal surface and measure the outer diameter of the steel wire loop. This indicator reflects the elastic properties of the steel wire.
Warp height:The maximum height of the steel wire end when placed shall not exceed 120mm to ensure stability during coil transportation and use.
In actual application, a submarine cable manufacturer purchased a batch of 850-grade galvanized steel wires for submarine optical cable armoring. Through the test of GB/T32795-2016 standard, this batch of steel wires met the requirements in terms of tensile strength (≥850MPa), elongation after break (≥10%) and number of torsion (≥23 times), and successfully passed the copper sulfate test.
Recommendations for standard implementation
- Procurement link:Both the supplier and the demander should clarify the product parameters, test methods and acceptance criteria to ensure compliance with the requirements of GB/T32795-2016.
- Production control:It is recommended that enterprises establish a sound quality management system, focusing on monitoring the diameter deviation, coating weight and mechanical performance indicators of steel wires.
- Testing optimization:For high-requirement items (such as tensile strength and number of torsion), sampling testing combined with visual inspection can be used.
- Technological innovation: Encourage enterprises to develop new zinc alloy coating formulas to improve corrosion resistance while reducing costs.
Loading PDF document...
Error loading PDF. Please make sure the file is valid and try again.
We also recommend
-
GB/T 30587-2014 in English
Steel wire rope sling—Gromments
2014-06-09 -
GB/T 17101-2019 in English
Hot-dip zinc or zinc-aluminium coated steel wires for bridge cables
2019-06-04 -
GB/T 21837-2023 in English
Practice for electromagnetic examination of ferromagnetic steel wire rope
2023-11-27 -
GB/T 32963-2016 in English
Zinc - aluminum alloy coated steel wire rope
2016-08-29 -
GB 8903-2024 in English
Steel wire ropes for lifts
2024-06-25 -
GB/T 4232-2019 in English
Stainless steel wire for cold heading and cold forging
2019-06-04 -
GB/T 16762-2020 in English
Characteristics and specifications of steel wire rope slings for general purposes
2020-12-14 -
GB/T 14450-2016 in English
Bead wire
2016-08-29 -
GB/T 24202-2021 in English
Carbon steel wire for tension members of optical fiber cable
2021-04-30 -
GB/T 28903-2012 in English
Stainless steel wire for spoike
2012-11-05
