09CrCuSb steel pipe(ND)
 
09CrCuSb (ND steel) resistant to sulfuric acid low temperature dew point corrosion steel (ND steel, ND steel, 09CrCuSb steel, 09CrCuSb steel, etc.). Usually called 09 club.
 
 
09CrCuSb (ie ND steel)
 
Standard:
Q/TDGG0039-2004-----Industry internal standard
GB 150.2-2011 - Pressure Vessels Part 2
 
Application:
It is widely used in power plants and refineries to manufacture economizers, air preheaters, heat exchangers and evaporators that work in high-sulfur flue gas to protect against sulfur-containing flue gas condensation.
 
 
The main production of steel pipe grade:
09CrCuSb (ND steel pipe)
 
 
 
 
Chemical Composition
 

Grade	Chemical Composition(%)
	C	Si	Mn	Cr	Cu	Sb	P	S
09CrCusb	≤0.10	0.20-0.40	0.35-0.65	0.70-1.20	0.25-0.45	≤0.10	≤0.10	≤0.10

 
 
Mechanical Properties
 

Grade	Tenslle Strength(MPa)	Yield Strength(MPa)	Elongation(%)
09CrCuSb	390-550	≥245	≥25

Chemical composition in GB 150.2-2011
 

Grade	Chemical Composition(%)
	C	Si	Mn	P	S	Cr	Cu	Sb
09CrCuSb	≤0.12	0.20~0.40	0.35~0.65	≤0.030	≤0.020	0.70~1.10	0.25~0.45	0.04~0.10

 
Comparison of 09CrCuSb steel (ND steel) with other steel grades
 

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

Specification:
[Diameter 40 mm circular ND steel pipe] Φ40×1.5-3.0: Φ40×1.5, Φ40×1.6, Φ40×1.7, Φ40×1.8, Φ40×1.9, Φ40×2.0, Φ40×2.1, Φ40×2.2, Φ40×2.3 Φ40×2.4, Φ40×2.5, Φ40×2.6, Φ40×2.7, Φ40×2.8, Φ40×2.9, Φ40×3.0
 
[50 mm diameter circular ND steel pipe] Φ50×1.5-3.0: Φ50×1.5, Φ50×1.6, Φ50×1.7, Φ50×1.8, Φ50×1.9, Φ50×2.0, Φ50×2.1, Φ50×2.2, Φ50×2.3 Φ50×2.4, Φ50×2.5, Φ50×2.6, Φ50×2.7, Φ50×2.8, Φ50×2.9, Φ50×3.0
 
[Diameter 51 mm circular ND steel pipe] Φ51×1.5-3.0: Φ51×1.5, Φ51×1.6, Φ51×1.7, Φ51×1.8, Φ51×1.9, Φ51×2.0, Φ51×2.1, Φ51×2.2, Φ51×2.3 Φ51×2.4, Φ51×2.5, Φ51×2.6, Φ51×2.7, Φ51×2.8, Φ51×2.9, Φ51×3.0

 

 
09CrCuSb (ND steel) steel is developed for coal-fired boilers, oil-fired boilers; heat exchangers for electric furnaces, pipes, chimneys, boiler air preheaters, economizers, heat exchangers, condensing coolers, evaporators, etc. Hot-rolled steel sheets and steel pipes with excellent resistance to sulfuric acid dew corrosion. Its superior resistance to sulfuric acid dew point corrosion and very high cost performance is the best material that can completely replace stainless steel and surpass stainless steel (in terms of sulfuric acid dew point corrosion resistance). ND steel has great economic significance, in line with today's high efficiency, longevity and energy saving. "Green" concepts such as environmental protection and national development policy orientation.
 
 
 
Advantage of 09CrCuSb (ND steel)
ND steel, 09CrCuSb steel, is the most ideal steel for “sulfuric acid resistant low temperature dew point corrosion” at home and abroad. ND steel is widely used in the manufacture of economizers, air preheaters, heat exchangers and in high sulfur flue gas. Equipment such as evaporators, used to resist corrosion of sulfur-containing flue gas dew point. ND steel also has the ability to resist chloride ion corrosion. The main reference index of ND steel pipe (soaked in 50% H2SO4 solution at 70 °C for 24 hours) is higher than that of carbon steel and stainless steel.
 
 
Photos of 09CrCuSb (ND steel pipe)
 
 
 
 
 
Application:
09CrCuSb (ND steel) steel pipes are developed for coal-fired boilers, oil-fired boilers; heat exchangers for electric furnaces, pipes, chimneys, boiler air preheaters, economizers, heat exchangers, condensing coolers, evaporators, etc.