ND steel (09CrCuSb) seamless tubes are successfully delivere

ND steel (09CrCuSb) seamless steel pipe successfully delivered 
 
On April 26, 2002, our company successfully delivered ND steel (09CrCuSb) seamless steel tubes for a large boiler plant in Vietnam, and users highly recognized our inspection process and product quality.


 
 
Order details:
ND steel (09CrCuSb) seamless steel tubes
Standard: GB / T150.2——2011
Material: 09CrCuSb
Specification: 60 * 4 * 6000MM
Quantity: 2500 Pcs (83.3T)
 
ND steel (09CrCuSb) seamless steel tubes
Standard: GB / T150.2——2011
Material: 09CrCuSb
Specification: 51 * 3.1 * 6000MM
Quantity: 3110 Pcs (75.5T)
 
We arrange the inspection for customers, Third-party testing: hydraulic pressure testing, ultrasonic testing, eddy current testing, etc. one by one.
We make the antirust treatment for each steel pipe according to the requirements of customers. And our workers worked overtime to complete the order within the specified time (delivery time should be within 20 days).
 

 
Photos of ND steel (09CrCuSb) seamless steel tubes

 
   
 
ND steel, namely 09CrCuSb steel, is currently the most ideal steel for "resistance to low-temperature sulfuric acid dew point corrosion" (ND steel plate, ND steel tubes, 09CrCuSb steel plate, 09CrCuSb steel tubes, etc.)
 
ND (09CrCuSb) steel tubes are widely used in the manufacture of economizers, air preheaters, heat exchangers and evaporators that are used in 100-high sulfur-containing flue gas, to resist dew point corrosion of sulfur-containing flue gas.
 
ND (09CrCuSb) steel tube also has the ability to resist chloride ion corrosion. The main reference standard of ND steel pipe is internal standard (soaked in 50% H2SO4 solution at 70 degrees Celsius for 24 hours), Compared with other steels such as low carbon steel, corten and cr1a, ND steel has excellent corrosion resistance and mechanical properties.
 
Comparison of corrosion rate between ND steel and other steel grades (70 ℃-50% H2SO4 solution)
Steel grade 09CrCuSb（ND steel） CRIR(Japan) 1Cr18Ni9 Corten STEN（Japan） A3（Q235B）
Corrosion rate 7.30 13.40 21.70 63.00 27.4 103.50
multiple 1 1.84 2.97 8.63 3.75 14.11

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