Prix FOB
Obtenir le dernier prix10 / Kilogram
|50 Kilogram Minimum Order
Pays:
India
N ° de modèle:
tubing, plate, round rods, rings, flanges, pipe fittings, fasteners
Prix FOB:
10 / Kilogram Obtenir le dernier prix
Localité:
-
Prix de commande minimale:
10 per Kilogram
Commande minimale:
50 Kilogram
Packaging Detail:
export wooden case
Heure de livraison:
15-50 days
Capacité de Fournir:
20 Metric Ton per Month
Payment Type:
L/C, T/T
Groupe de produits :
India
Personne àcontacter kapil
Kika street, Mumbai, Maharashtra
Chemical Composition
alloy | % | Ni | Cr | Mo | Cu | Fe | C | Mn | Si | P | s |
**4L | min | *3 | *9 | 4 | 1 | Balance | |||||
max | *8 | *3 | 5 | 2 | 0.*2 | 2 | 1 | 0.**5 | 0.**5 |
Metallurgical structure
**4L
is a fully austenitic organizations, **4L of ferrite and the
precipitation of α phase insensitive compared to the
general molybdenum high austenitic stainless
steel.
Corrosion resistance
In
general welding and heat treatment, there will not be carbide
precipitation because of the carbon content is very low (0.**0%
maximum). This eliminates the intergranular corrosion after the
welding and heat treatment. Due to high nickel chromium molybdenum
content, and copper element, so even if the **4L in reducing
environments, such as in sulfuric acid and formic acid can be
deactivationcan be deactivation. High nickel content also has a
lower corrosion rate in the activity state. In the range of 0 ~ *8%
concentration pure sulfuric acid , **4L of the use of temperature
can be as high as *0°C. In the range of 0 ~ *5%
concentration pure sulfuric acid, its corrosion resistance is very
good. In the industrial phosphoric acid production of Wet
method,the impurities are strongly influence of corrosion.**4L
corrosion resistance is better than ordinary stainless steel in all
kinds of phosphoric acid.In strong oxidation of nitric acid, **4L
lower corrosion resistance compared to non-molybdenum high alloy
steel; In the hydrochloric acid, **4L limited to the use of lower
concentrations of **2%. In this concentration range. **4L corrosion
resistance better than generic stainless steel. **4L with a high
resistance to pitting, its crevice corrosion resistance are also
very good Chloride solution. **4L high nickel content, reducing the
corrosion rate in gap and insurface blemish. Ordinary austenitic
stainless steel in the temperature higher than *0 °C, maybe
sensitive of the stress corrosion resistance in a rich chloride
environment, by increasing the nickel content in stainless steel,
can reduce this sensitivity. Due to the high content of nickel,
**4L with high stress corrosion cracking capacity in chloride
solution, the concentration hydroxid solution and rich sulfureted
hydrogen environment.
Applied field:
Alloy
**4L is a multi-purpose material can be applied in many industrial
:
1. Petroleum, petrochemical equipment, such as the
reactor in petrochemical equipment.
2. Sulfuric acid
storage and transportation equipment, such as heat
exchanger.
3. Power plant flue gas desulphurization
equipment, the main parts: the absorption tower, flue , stopping
plate, internal part, spray system.
4. The scrubber and
the fans in the organic acid treatment system.
There are a lot of style can be choosed:
| Pays: | India |
| N ° de modèle: | tubing, plate, round rods, rings, flanges, pipe fittings, fasteners |
| Prix FOB: | 10 / Kilogram Obtenir le dernier prix |
| Localité: | - |
| Prix de commande minimale: | 10 per Kilogram |
| Commande minimale: | 50 Kilogram |
| Packaging Detail: | export wooden case |
| Heure de livraison: | 15-50 days |
| Capacité de Fournir: | 20 Metric Ton per Month |
| Payment Type: | L/C, T/T |
| Groupe de produits : | Stainless steel |
