ZHANGJIAGANG HUA DONG ENERGY TECHNOLOGY CO.,LTD
Zhangjiagang Hua Dong Energy Technology Co., Ltd.
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HDT 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, Russia, 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.
1. Commodity: Seamless Stainless Steel Pipe ASTM B677 UNS N08904/904L
2. Process method: Cold drawn/cold rolled
3. Surface finish: Anneal/pickling/manual polish/ mechanical polish
4. Material: UNS N08904/904L
5. Standards: ASME SB677 / ASTM B677 / B674
6. Size:
A) NPS: 1/8" to 8"
B) Schedule: 5/5S, 10/10S, 20/20S, 40/40S, 80/80S, 120/120S, 160/160S, acc. To ANSI B36.19
C) O. D.: 6 mm to 219 mm
D) W. T.: 0.5 mm to 25 mm
E) Length: Max. 20 meters
7. Delivery conditions: Annealled, Picklinged and Polished
8. packing: Seaworthy wooden cases/steel framed plywood cases/simple packaging
| 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 |
Main fields of application (depending on the specific conditions of use) |
| (all aforementioned specifications serve as a general orientation and have to be reviewed depending on the specific conditions of use) |
Application:
1>. Offshore, Subsea.
2>. Sea water technology
3>. Chemical industry, good stability against reducing acids of medium strength like sulphuric acid and phosphoric acid and various chloric media, refinery, paper industry, pulp industry.