What should be done on the surface of high-frequency anti-corrosion spiral steel pipe?

- Oct 10, 2020-

What should be done on the surface of high-frequency anti-corrosion spiral steel pipe?


   With the non-stop improvement of China's economy, the united states of america vigorously develops the strength industry. Pipeline long-distance oil and fueloline pipelines are an critical manner of strength security. In the anti-corrosion creation manner of oil (fueloline) pipelines, the floor remedy of anti-corrosion spiral metal pipes determines the carrier existence of pipelines. One of the important thing elements is the basis that the anti-corrosion layer and the metal pipe may be firmly combined. According to the studies institute's verification, the existence of the anti-corrosion layer relies upon at the coating type, coating great and creation environment. The floor remedy of the anti-corrosion spiral metal pipe influences the existence of the anti-corrosion layer via way of means of approximately 50%. Therefore, it must be strictly according with the anti-corrosion layer. Standardize the necessities at the floor of metal pipes, constantly discover and summarize, and constantly enhance the floor remedy strategies of metal pipes. What must be performed at the floor of high-frequency anti-corrosion spiral metal pipe?

1, cleansing    Use solvent and emulsion to smooth the floor of metal to take away oil, grease, dust, lubricant and comparable natural matter, however it can't take away rust, scale, flux, etc. at the floor of metal pipe, so it's far best used as an auxiliary manner in anti-corrosion manufacturing of metal pipe. 



2, device rust elimination    The floor of the metal pipe is in particular polished via way of means of the usage of a cord brush or the want to take away loosened or lifted scale, rust, welding slag, and the like. The rust elimination of the hand device can attain the Sa2 level, and the rust elimination of the strength device can attain the Sa3 level. If the floor of the metal fabric is adhered to the iron oxide scale, the rust elimination impact of the device isn't always ideal, and the anchor intensity required for the anti-corrosion creation can't be achieved.

3, pickling    Generally, chemical cleansing and electrolysis are used for pickling remedy. Anticorrosive spiral metal pipe is best handled with chemical pickling, that may take away scale, rust and antique coating, and may now and again be used as re-remedy after sandblasting and rust elimination. Although chemical cleansing can obtain a positive diploma of cleanliness and roughness, its anchor sample is shallow and it is simple to pollute the environment.


Products Description

Hot Selling API X42 PSL1 DN1000mm 3LPE/FBE/Bitumen coated Spiral Steel Pipes Price
Product Name
Hot Selling API X42 PSL1 DN1000mm 3LPE/FBE/Bitumen coated Spiral Steel Pipes Price
Applicable Products
SSAW Steel Pipe, Linepipe, Pile Pipe
Outer Diameter
 8 inch-120 inch(219mm-3048mm)
Wall thickness
4.5mm-25.4mm
Length
Normally 12 meters, up to 60 meters
Standard
API SPEC 5L, ASTM A53/A53M, ASTM A252, ASTM A36, EN10219, EN10296, EN10217, ISO3183, GB/T9711

Material
Gr.B, X42, X52, X60, X65, X70, X80, S235JR, S275J0, S275J2, S355J0, S355JR, S355K2, SS400, STK290, STK400, STK490, STK500,
P235TR1, P265TR1, P235TR2, P265TR2
Section Shape
Round Hollow
Technique
Double-sided submerged arc welding, spiral forming
Ends
Plain end/Beveled, plastic or steel protective cap, welding flange

Surface Treatment
1. Varnish coating/oil
2. 3LPE, 3PP, FBE
3. Galvanized
4. According to clients requirement

Packing
bare in loose, plastic packaging, hemp rope binding
MOQ
5 Metric tons
Origin
Tianjin & Hebei ,China
Certificates
ISO9001, ISO14001, ISO18001, API 5L, API 5CT, CE, JIS
Delivery Time
Usually within 10-45 days after receipt of down payment (Big Qty shall be further discussed)
Product Application
Fluid, oil, petroleum, gas, water, steam, onshore, offshore, aboveground, underground, Structural


Hot Selling API X42 PSL1 DN1000mm 3LPE/FBE/Bitumen coated Spiral Steel Pipes Price
Products Application
Company Profile


Products Processment
Packaging And Delivery
Enterprise Show
FAQ
1.Are you a factory or trading company?We are a Chinese manufacture of steel pipes with both factories and trading companies.2.Can I get samples before order ?Yes, of course. Usually our samples are free. we can produce by your samples or technical drawings. 3. what is your delivery time ?The time of delivery is usually around 1 month. We can send out in 3 days if it has stock.4.What is your payment terms?Our usual payment term is 30% deposite, and rest against B/L. L/C is also acceptatble EXW, FOB, CFR, CIF.5.What do your factory do regarding quality control?We have gained ISO, CE,API authentication. From material to products, we inspect each process to keep good quality.6. How can you ensure what I got will be good ?Alibaba will act as our guarantor. If the product fails the inspection before leaving the factory, you can refuse to accept the goods.7. How do you make our business long-term and good relationship?We keep good quality and competitive price to ensure our customers benefit ; We respect every customer as our friend and we sincerely do business and make friends with them. No matter where they come from.8.How about MOQ?At least 5-10 tons for the unit dimension pipes and 1ton for stock pipes.

Please feel free to leave us message if you have any question about us and our products.