Stock abbreviation:Bozhong Group
Stock Code: 210988
| STANDARDS | |||||
| INDUSTEEL TRADEMARKS | UNS | ASTM | EURONORMS EN | SUS | |
| S32550/S32520F | F255 |
1.4507 X2CrNiMoCuN25-6-3 |
- | ||
| CHEMICAL ANALYSIS (%WEIGHT) | |||||
| C | Cr | Ni | Mo | N | Others |
| < 0,030 | 25 | 7 | 3,5 | 0,23 | Cu = 1.5 |
Specifications
|
Specifications |
|
| Form |
Standard |
|
Metal Type |
UNS S32550 |
|
Bar |
ASTM A479 |
|
Wire |
|
|
Sheet |
ASTM A240 |
|
Plate |
ASTM A240 |
|
Fitting |
|
|
Forging |
|
|
Weld Wire |
|
|
Weld Electrode |
E2553 |
|
Din |
1.4507 |
Chemistry
FERRALIUM 255 is high critical pitting temperature and high critical crevice temperature provide more resistance to pitting and crevice corrosion than lesser alloyed materials. The alloy's very high yield strength combined with good ductility allows lower wall thicknesses in process equipment.
Chemical Requirements |
|||||||
|
Ni |
Cr |
Mo |
Mn |
C |
Si |
Fe |
|
|
Max |
6.5 |
27.0 |
3.9 |
1.50 |
0.04 |
1.00 |
Bal |
|
Min |
4.5 |
24.0 |
2.9 |
||||
|
Mechanical Property Requirements |
|||||
|
Ultimate Tensile |
Yield Strength (0.2% OS) |
Elong. |
R/A |
Hardness Brinell |
|
|
Min |
110 KSi |
80 KSi |
15% |
||
|
Max |
297 |
||||
|
Min |
760 MPa |
550 MPa |
|||
|
Max |
|||||
| APPLICATIONS | |||||||||||
| CHEMICAL INDUSTRIES | PROCESS INDUSTRIES | WATER TREATMENT | STORAGE & TRANSPORTATION | ||||||||
| Nitric Acid | Sulfuric Acid | Polymer& otheracids | Fertilisers | Pulp& Paper | Hydrome-tallurgy | Seawater& desalination | Freshwater &Tanks | Waste Water | Chemical Tanks | Cryogenic Tanks | Renewable |
| POWER GENERATION | OIL & GAS | CONSTRUCTION | ||||||
| Nuclear | Pollution control | Hydroelectric | Renewable | Off & Onshore & production | Refining & Gas processing | Petrochemical | Architecture | Bridges |
For more technical details :
(1) Indicative typical values
(2) Indicative typical values for thickness 20 mm at RT for transverse direction
(3) Hardening 496°C (925°F), 4h, air cooling
(4) PREN = Cr + 3.3 Mo + 16N
(5) PRENW = Cr + 3.3(Mo + 0.5W) + 16N
(6) HT: mechanical properties depend on heat treatment