Spezilla Tube Co., Ltd. (Shanghai)
Spezilla Tube Co., Ltd. Excellence in Stainless Steel Tubing
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1.4462 duplex and super duplex stainless steel Tube EN10217-7 AD2000 W2 OD18 X 1.0MM Low Thermal Expansion
Duplex 1.4462 belongs to the family of duplex stainless steels. This steel is characterised by its excellent combination of corrosion resistance, comparable to that of the austenitic grade 1.4404, and strength, about 150% higher than that of the 1.4404 austenitic grades. The use of duplex stainless steels, especially 1.4462 are gaining popularity due to their unique combination of excellent corrosion resistance, resistance to stress corrosion cracking and high tensile and yield strengths. As a result of its high strength, this steel is ideally suited to the constructional industry. The relatively lower nickel content, relative to the conventional austenitic grades, also makes 1.4462 an insteresting alternative from an economic point of view.
Assignment to current and older standards:
Designation according to DIN: x2 Cr Ni Mo N 22-5-3
ASTM grade: S 31803 / S 32205
EN: 1.4462
ASME: Duplex
AFNOR: X2CrNiMoN 22-5-3
SIS: 2377
UNS: S 31803
Vd TÜV 418: 1.4462
Description:
| Item Code: | SPW-1.4462 |
| Tube OD.: | 18MM |
| Wall: | 1.0MM |
| Length: | 6000MM |
| Material: | 1.4462 |
| Standard: | EN10217-7 |
| Finish: | Bright Annealed. |
| Type: | Welded |
| Certification: | ISO9001 |
| Mill Test Certificate: | EN10204 3.1 |
| Packing: | Sleeved, Wooden Boxed |
Chemical composition reference analysis (as weight %)
| Grade | Amount % |
|---|---|
| C | ≤ 0,03 |
| P | < 0,030 |
| S | ≤ 0,020 |
| Si | ≤ 1,0 |
| Mn | ≤ 2,0 |
| Cr | 21 – 23 |
| Mo | 2,5 – 3,5 |
| Ni | 4,5 – 6,5 |
| N | 0,08 – 0,20 |
Mechanical values at room temperature
| Tensile strength N/mm² | 640 – 900 |
| Tensile yield point Rp 0,2 N/mm² | ≥ 450 |
| Elongation at break A5 % | 25 |
Available Tube Product Forms:
Straight.
Coiled.
Typical Applications:
This steel is ideal for the construction industry due to its high strength. The relatively low nickel content in comparison to conventional austenite also makes 1.4462 interesting from a financial viewpoint.
Quality Assurance:
Spezilla's duplex stainless steel tubes are produced acc. to the following process and inspection to assure our quality:
1. Chemical Composition Analysis Test With 100% PMI.
2. Solution Annealing / Bright Annealed.
3. 100% Hydrostatic Test and 100% Eddy Current Test
4. Mechanical Tests includes Tension Test, Flattening Test, Flaring Test, Hardness Test.
5. Impact Test subject to Standard request.
6. Grain Size Test and Intergranular Corrosion Test.
7. Visual Test and Endoscope Test for Surface Quality Test
Typical Manufacturing Specifications:
EN10217-7
ASTM A789
Also individual customer specifications.
