Alloy28(UNS N08028) is an ultra-low carbon Fe-Ni base corrosion resistant alloy with a density of 8.0g/cm3.According to the naming method of metal materials in China, the grade of this alloy is 00Cr27Ni31Mo3Cu.

Standards:

AMERICA	ASTM B668 ASTM B709	UNS N08028
GERMANY	DIN EN 10088-1	1.4563

 

Chemical Composition:

Grade	N08028	1.4563
C	≤0.030	≤0.020
Si	≤1.00	≤0.70
Mn	≤2.50	≤2.00
P	≤0.030	≤0.030
S	≤0.030	≤0.010
Cr	26.0~28.0	26.0~28.0
Ni	29.5~32.5	30.0~32.0
Mo	3.0~4.0	3.0~4.0
Cu	0.60~1.40	0.70~1.50
N	—	≤0.11
Fe	rest	rest

 

Grades:

Special Metals	INCOLOY® alloy 028
Sandvik	SANICRO 28

 

Material Characteristics:

1.It has good corrosion resistance in strong acid environment.

2.It has good stress corrosion cracking resistance in hydrogen sulfide (H2S) and chloride environment.

3.Good intergranular corrosion resistance.

4.High resistance to pitting and crevice corrosion.

5.Good weldability.

 

Applications:

Alloy28 early is developed to solve the wet-process phosphoric acid heat exchanger material alloy, corrosion resistant performance is very superior, to H2S, chloride, phosphoric acid and sulfuric acid corrosion resistance, high H2S content in the oil and gas exploitation, flue gas desulfurization system, papermaking industry, phosphoric acid and organic acid and ester synthesis production device has a large number of applications and performances.