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Alloy 31

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Alloy 31 / N08031 / NS144 / 1.4562

Alloy 31 is an iron-nickel-chromium-molybdenum alloy with nitrogen addition. It has a pitting resistance in high chloride environments between those of super-austenitic stainless steels and nickel alloys. The alloy has very good corrosion resistance in mixed acid and high chloride environments. The material is approved in ISO 15156/ NACE MR0175 to test level VI for sour gas service. 


Alloy 31 Mechanical Properties:

Temper Annealed
Tensile Rm 94 ksi (min)
Tensile Rm 650 MPa (min)
R.p. 0.2% Yield 41 ksi (min)
R.p. 0.2% Yield 280 MPa (min)
Elongation (2.02 or 4D gl) 40 % (min)


Alloy 31 Chemical Composition (% by weight):

Element Min Max
C - 0.0015
Si - 0.3
Mn - 2
P - 0.02
S - 0.01
Cr 26 28
Cu 1 1.4
Fe Balance
Mo 6 7
N 0.15 0.25
Ni 30 32


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Tel: 0086-523-89558188, 89550188  
Fax: 0086-523-89555688
Email:  sales@jsbdalloy.com
Factory Add:
Alloy Industrial Park of Shiyan Town, Dongtai, Jiangsu, China
Office Add:
Room 110, Building 1, No. 98 Fenghuang West Road, Taizhou City, Jiangsu China.
 

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