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Metleader Pipeline Technology Inc.
China Manufacturer with main products: Seamless Steel Pipe, Galvanized Steel Pipe |
304 Stainless Steel Pipe Price Per Meter Acero Inoxidable Tubo
| FOB Price: | 10.00 - 100.00 USD/Ton |
|---|---|
| Supply Ability: | 100 Ton(s) per Week |
| Shipping: | Shipping |
| Payment Terms: | L/C, T/T |
Related products from verified members
| Export Markets: | North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe |
|---|---|
| Place of Origin: | Beijing in China |
| Packaging Details: | Wooden packing |
Quick Details
- Thickness: 0.4MM-45MM
- Application: Customized
- Type: Seamless
- Brand Name: Metleader
- Standard: ASTM,AISI
- Outer Diameter: 9.5mm~101.6mm
- Welding Line Type: ERW
- Certification: ISO
- Steel Grade: 300 Series
- Model Number: Metleader
Specifications
1.Brief Introduction:
What is the process of blackening treatment?
Process: metal " bluing" liquid medicine
Adopt alkaline oxidation method or acid oxidation method; the metal surface to form a layer of oxide film, in order to prevent corrosion of the metal surface, this process is called " bluing".
Ferrous metal surface after the " blue" treatment of the formation of oxide film, its outer layer is mainly ferric oxide, the inner layer is ferrous oxide.
2.Techincal parameters:
Alkaline oxidation method " blue" pharmaceutical solution
1. Formula: sodium nitrate 50 ~ 100 g sodium hydroxide 600 ~ 700 g sodium nitrite 100 ~ 200 g water 1000 g
2. Method: ACCORDING to the formula after measurement, under the condition of stirring, add each material in turn, dissolve, mix evenly.
3. Description:
1) the metal surface must be washed and dried before the " hair basket" treatment.
2) the " bluing" treatment conditions of metal devices are related to the carbon content in the metal. the temperature of the " bluing" liquid and the treatment time of metal devices can be referred to the table below. Carbon content in metal % working temperature (℃) treatment time (min) start to terminate.
3) Analyze the content of sodium nitrate, sodium nitrite and sodium hydroxide in the solution every other week or so, so as to supplement the relevant ingredients in time. Generally, the whole solution should be replaced after half a year of use.
4) Metal " blue" treatment, it is best to rinse with hot soapy water for a few minutes, and then rinse with cold water. Then, rinse with hot water and blow on.
3.Performance features:
Acid oxidation method " blue" pharmaceutical solution
1. Formula: Phosphate 3 ~ 10 grams of calcium nitrate 80 ~ 100 grams of manganese peroxide 10 ~ 15 grams of water 1000 grams.
2. Method: after measuring according to the formula, add phosphoric acid, manganese peroxide and calcium nitrate in turn under constant stirring condition, dissolve and mix evenly.
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