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- HP/UHP - Model HP/UHP - Bright Tube
HP/UHP - Model HP/UHP -Bright Tube
In order to ensure weldability and welding quality, it is required to ensure that the pipe has high precision dimensional tolerance and stable chemical composition, so as to reduce the occurrence of flue gas and particles during welding, and improve the corrosion resistance and smoothness of welding parts. In a word, high purity pipelines should have both beautiful appearance (external purity) and excellent quality (internal purity).
External purity
It refers to not only bright external surface, but also a good inner surface roughness, which is to ensure that the pipeline system to transmission medium neutral, as well as excellent purge and cleaning performance. In order to ensure the quality and efficiency of automatic rail welding, the pipe is required to have high dimensional tolerance accuracy.
Inner purity
It refers to pure material. The HP/UHP bright tube in the real sense has very strict requirements on the chemical composition, inner purity and performance of the material in addition to the beautiful inside and outside surface.
- ASTM A213
- ASTM A269
- ASTM A270
- ASTM A312
- ASTM A632
- ASME BPE
- JIS G3459
- ISO/TS 16949
- Inner suface Ra0.4um
- External surface Ra0.1um
- OD tolerance ±0.02mm
- WT tolerance ±0.02mm
- L tolerance ±0.10mm
- Straightness ≤0.5mm/m
- Concentricity±0.05mm
- High purity water cleaning
- Nitrogen purging
- Dust-free clean packing
- Packed in single plastic bag
- Chemical composition
- Roughness
- Cleanliness
- Hardness
- Microstructure
- Intergranular corrosion test
- Salt spray test
- Mechanical properties
- ET/UT/Hydrostatic
- Air tightness test
- Dimension/Size/Surface
- BA tube
- EP tube
- MP tube
- Fluid polished tube
- Honing polished tube
Size
- OD 1.0 ~ 76 mm
- WT 0.10 ~ 10.0 mm
- L 6000 ~ 18000 mm
- Coil ≤ 500 mm
Material
- 304 / 304L
- 316 / 316L / 316Ti
- 904L / N08904
- UNS N10276
- UNS N04400
- UNS N06600 / N06625
- UNS N08800 / N08825
- Nickel 200 / 201
Used in semiconductor, liquid crystal industry, solar photovoltaic, biopharmaceutical, medical devices, precision instrumentation, integrated circuits, electronic chips, dust-free clean workshop, ultra-high purity gas, chemical system, WFI system, ultra-precision processing and other cutting-edge industries which reqest high-purity or ultra-high purity gas / fluid pipeline system.
- UHP gas system
- UHP liquid system
- DI UHP water system
- Hydrogen pipeline for hydrogen energy
- High level laboratory gasline
- Catheters
- Pipeline for beverage
- Food processing: aseptic tube sheet/tubular heat exchanger
- EGR pipeline of automobile: Gas transmission system, fuel injection system, high pressure oil rail pipeline
- Biological pharmacy: Such as pure water processor, tubular evaporator, steam generator and bioreactor, etc.
- Semiconductor/microelectronics:as transmission pipeline of HP/UHP special gas in a clean room and gas source holder for LED, LCD, OLED, solar panel, etc.