SUPER DUPLEX 2507 UNS S32750

2507 Super Duplex is a high-alloy duplex stainless steel with a PRE (Pitting Resistance Equivalent) value of minimum 42.5. The grade is characterized by very good chloride corrosion resistance, combined with very high mechanical strength. It is particularly suited for use in aggressive environments such as warm chlorinated seawater and acidic, chloride containing media. It is widely used in offshore oil and gas exploration/production and in heat exchangers in Petrochemical/chemical processing. The grade is also suitable for hydraulic and instrumentation applications in tropical marine environments.

 

MANUFACTURING STANDARDS

UNS S32750 ISO 14001:2004 EN 10204 3.1 ASTM A-789

 NACE MR-0175 ASTM A-789 ASTM G-48, Method A

 

C
Si
Mn
P
S
Cr
Ni
Mo
 
Carbon
Silicon
Manganese
Phosphorus
Sulfur
Chromium
Nickel
Molybdenum
Others
0.030
.08
1.2
0.035
0.015
25
7
4
N=0.3

 

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