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       DC204 Inner-Coated Powder for Industrial Pipe

Properties and Applications  

DC204 is a kind of Epoxy-Phenolic powder coating materials application for chemical pipe especially for the anticorrosion 

and wear-resisting oil pipe and drill pipe. Connected with PC8007 resin the DC204 coating layer will be more useful in the

high concentration COand H2S medium, Also great resistance in chemical pipe. This coating layer can increase the life

3~4 times of the drill pipe than untreated pipe. As the smooth surface of the pipe can reduce the resistance on freighting

 the oil, Chemical materials, and other corrosion liquid. The needed transfer power can be less than normal about 15~30%.

As the main component are modify epoxy the suitable max temperature can reach 204 which main be suitable for more

higher temperature request field than DC115 and DC150.

Main Specification                                   

Carbonizing time (200):

100s~360s

Curing condition:

240@ 60~90mins

The coating thickness

150~350um

Application temperature

<204

The physical character of coating layer

Wear resistance

(ASTM D4060)

CS17 Abrasive wheel, 1000g

Losing weight <18mg  1000Rpm

Impact strength

3J Coating no cracking

Top-coating stick strength

>40MPa

Toughness (CSA Z245.20)

23,1.50/PD

Peel strength (AS3862)

0 Grade

Porosity on Cross Section

<1     ( CSA Z245.20)

Application

High Temp. drill pipe

Oil-Gas/Waste water well

 Desalination pipe

Sucker Rod

Oil Tube

Acid Pipe

Chemical Pipe

High concentration liquid Pipe

<1% concentration H2S Pipe

Steam pipe

Inner Coating for Oil Valve

Cracking Pipe

DC204 is suitable for the Standard of SINOPEC and SY/T0544-2010,SY/T6717-2016

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The test Value on High temperature & High pressure

Temp.

Pressure

Test Method

Test Time

Result

204

50Mpa

25%CO2, 5%H2S, 70%CH4

24 hours

No losing adhesive

No foaming

No expansion

No softening

No losing bright

No color changed

kerosene

Saturated NaCl solution

148

70 MPa

100% CO2

48 hours

Kerosene:Water:C7H8=1:1:1

148

70 MPa

100%N2

48 hours

PH:12.8 NaOH solution

Note:

1.Above values are the accumulative typical ones by recognized testing  method, but, in order to ensure you to

select our products properly, please refer to above specification and test the samples based on your using

purpose or feel free to contact our engineers for further and better understanding.

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