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| Categories | Duplex Stainless Steel Pipe |
|---|---|
| Brand Name: | YUHONG |
| Model Number: | ASTM/ASME B677 / B674 UNS N08904 / 904L /1.4539 |
| Certification: | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001 |
| Place of Origin: | CHINA |
| MOQ: | 100KGS |
| Price: | NEGOTIABLE |
| Payment Terms: | L/C, T/T |
| Supply Ability: | ACCORDING TO CUSTOMER´S REQUEST |
| Delivery Time: | 10-15 DAYS |
| Packaging Details: | Ply-wooden Case /Iron Case |
| Standard: | ASTM/ASME B677 / B674 |
| Material: | A790 UNS S32750 |
| Surface: | Polished, Pickled , Bright Annealed |
| Type: | SEAMLESS,WELDED |
| Company Info. |
| Yuhong Group Co.,Ltd |
| Verified Supplier |
| View Contact Details |
| Product List |
ASTM/ASME B677 / B674 UNS N08904 / 904L /1.4539,STAINLESS STEEL SEAMLESS PIPE/TUBE
YUHONG SPECIAL STEEL deal with Austenitic Stainless Steel, Nickel Alloy Steel(Hastelloy , Monel, Inconel, Incoloy ) seamless and welded pipe and tube already more than 25 years, every year sell more than 80000 tons of steel pipe and tube. Our client already cover more than 45 countries, Like Italy, UK, Gernmany, USA, Canada, Chile, Colombia, Saudi Arabia, Korea, Singapore, Austrial, Poland, France , ....
Material 1.4539 (alloy 904L) is an austenitic special steel with
high molybdenum content as well as addition of copper and extremely
low carbon content.
Our product range in 1.4539 are tubes and pipes, fittings and
flanges, accessories.
Some of the quality tests carried out by us includes:
| Corrosion Test | Conducted only when specially requested by the client |
| Chemical Analysis | Test done as per required quality standards |
| Destructive / Mechanical Testing | Tensile | Hardness | Flattening | Flare | Flange |
| Reverse-bend and Re. flat tests | Carried out in full compliance with relevant standards & ASTM A-450 and A-530 norms, which ensures trouble-free expansion, welding & use at customers end |
| Eddy Current Testing | Done to detect homogeneities in subsurface by using Digital Flaw-mark Testing System |
| 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 & pipes is subjected to thorough visual inspection by trained staff for detecting surface flaws & other imperfections |
Supplementary Testing : Apart from the above mentioned tests, we
also carry out on the manufactured products supplementary testing.
The tests conducted under this include:
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| Material No. | 1.4539 |
|---|---|
| EN symbol (short) | X1NiCrMoCu25-20-5 |
| AISI/SAE | — |
| UNS | N 08904 |
| AFNOR | Z 2 NCDU 25-20 |
| B.S. | — |
| alloy | alloy 904 L |
| Registered work's label | — |
| Normen | VdTÜV 421 , SEW 400 |
Chemical composition ¹ | ||||||||
| C ≤ % | Si ≤ % | Mn ≤ % | P ≤ % | S ≤ % | Cr % | Mo % | Ni % | V |
| 0,02 | 0,70 | 2,0 | 0,030 | 0,010 | 19,0-21,0 | 4,0-5,0 | 24,0-26,0 | |
| Nb | Ti | Al | Co | Cu % | N ≤ % | Fe | ||
| 1,20-2,00 | 0,15 | |||||||
| ¹ in accordance with Key to Steel 2001 | ||||||||
Special characteristics | ||
| Temperature range: | Density kg/dm³ | Hardness (HB) |
|---|---|---|
| pressure bomb/pressure vessel - 60°C bis 400°C | 7,9 | ≤ 230 |
| excellent stability against pitting corrosion, stress corrosion and intergranular corrosion | ||
Welding filler |
| 1.4539, 1.4519 |
|
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