High Pressure Bright Annealed Tube Cold Rolled TP904L / UNS N08904 / 1.4539
Stainless steel seamless bright annealed tube’s final surface is polished and bright annealed. And the polished grade is includes 180 # , 320 # , 400 # , 600 # , 800 # . According to standard very strictly , tubes which produced by us always have correct OD and WT tolerance. And they are very suitable for chromatography industry.
Where can be used ?
1 . General service industries ( petroleum , food , chemical , paper , fertilizer , fabric , aviation and nuclear
2 . Fluid , gas and oil transport
3 . Pressure and heat transmission
4 . Construction and ornament
5 . Boiler heat exchangers
6 . Decorative usage ( road lamp facilities , bridge handrail , expressway railing , bus stop , airport and gymnasium ) boiler , auto parts , medical equipment , building materials , food industry
| ASTM A312/A312M |
| Elements | N08904(wt%) |
| (C) Carbon, max : | 0.02 |
| (Mn) Manganese, max : | 2 |
| (P) Phosphorus, max : | 0.04 |
| (S) Sulfur, max : | 0.03 |
| (Si) Silicon, max : | 1 |
| (Ni) Nickel : | 23.0 - 28.0 |
| (Cr) Chromium : | 19.0 - 23.0 |
| (Mo) Molybdenum : | 4.0 - 5.0 |
| (Fe) Iron : | Bal. |
| (Cu) Copper : | 1.0 - 2.0 |
| (N) Nitrogen : | 0.1 |
MTSCO has been dedicated to producing bright annealed tubes since 2014 , owning complete producing technology and abundant managing experience . And the raw material such as mother tube , round bar we use is from Chinese biggest and well-known steel mill : Walsin , Yongxing etc . Also we have advanced NDT equipments for the tests such as Eddy Current test , Ultrasonic test , Hydraulic test and so on . Welcome you contact us in free !
| Corrosion Test | If clients need will be conducted |
| Chemical Analysis | Will be tested as per required quality standards |
| Destructive / Mechanical Testing | Tensile / Hardness / Flattening |
| Eddy Current Testing | Using digital flaw-mark testing System to do test and mark in surface homogeneities |
| Hydrostatic Testing | 100% Hydrostatic Testing carried out according to ASTM-A 450 norms for checking tube leakage, and biggest pressure we can support 20Mpa/7s . |
| Air Under Pressure Test | To check any evidence of air leakage |
| Visual Inspection | After passivation, every single length of tubes is subjected to thorough visual inspection by trained staff for detecting surface flaws & other imperfections |
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