Description
AVAILABILITY
Weld Pipe 3/4"- *2"
Butt-Weld Fittings 3/4" - *2"
Flanges 3/4" - *2"
Bar 1" - 8"
SPECIFICATIONS
ASTM A**2, A**3, A**2
ASME SA**2, SA**3, SA**2
DESCRIPTION
**4SMO is an austenitic stainless steel designed for maximum
resistance to pitting and crevice corrosion. With high levels of
chromium, molybdenum, and nitrogen, **4SMO is especially suited for
high chloride environments such as brackish water seawater pulp
mill bleach plants and other high chloride process streams. **4SMO
offers chloride resistance superior to that of Alloy **4L Alloy *0,
Alloy **5 and Alloy G. **4SMO is compatible with the common
austenitic stainless steels. It is often used as a replacement in
critical components of larger constructions where Type **6L or **7L
has failed by pitting, crevice attack, or chloride stress corrosion
cracking. In new construction, **4SMO has been found in many cases
to be a technically adequate and much less costly substitute for
nickelbased alloys and titanium. **4SMO is substantially stronger
than the common austenitic grades, but is also characterized by
high ductility and impact strength. **4SMO is readily fabricated
and welded.
(R) **4SMO is A REGISTERED TRADEMARK OF AVESTA
SHEFFIELD
DESIGN
FEATURES
High resistance to pitting, crevice and general corrosion.
Very high resistance to chloride stress corrosion cracking.
*0% stronger than ***-series austenitic stainless steels.
Excellent impact toughness.
Excellent workability and weldability.
TYPICAL
APPLICATIONS
Seawater handling equipment
Pulp mill bleach systems
Tall oil distillation columns and equipment
Chemical processing equipment
Food processing equipment
Desalination equipment
Flue gas desulfurization scrubbers
Oil and gas production equipment
TENSILE REQUIREMENTS
Tensile Strength (KSI) *4
Yield Strength (KSI) *4
KSI can be converted to MPA (Megapascals) by multiplying by
6.**5
