The ferritic structure of SEA-CURE®
stainless steel provides a
high strength/low work
hardening material with good
ductility. These properties
allow high design stress
limits with good fabrication
characteristics. Because of
the nickel addition,
SEA-CURE® has
a lower ductile to brittle
transition temperature than
similar ferritic steels
without nickel additions.
One of the most cost-effective alloys in
high chloride applications and where the
potential for microbiological influenced
corrosion exists
20 years of commercial history with an
outstanding performance record, accepted
by both Section III and Section Section
VIII of the ASME Boiler Code
Special
proprietary chemistry developed by
Plymouth Tube Company ensuring optimum
corrosion resistance
Fully cold working of the weld using
tooling on both OD and ID surfaces prior
to annealing to ensure optimum
homogenization
Special anneal & water quench
dissolution of secondary phases that may
be present in the strip material and to
prevent the re-formation of them
Chemical pickle/passivation which
removes all oxide from water quench and
chromium depleted layers from prior
strip processing
Technical support for tube processing
and customer assistance based upon 25+
years and 100+ Million feet of shipments
SEA-CURE®
stainless
is a patented alloy made exclusively by Plymouth Tube Company. Its composition
is given in Table 1. Plymouth manufactures tubing in sizes from 1/2 to 2-1/2 inches
(12 65 mm) in diameter, and in continuous lengths up to 150 feet (45 m). To produce
feedwater heater tubing Plymouth has state-of-the-art U-bending and stress relieving
equipment. Such tubing is used in fossil, nuclear, geothermal and hydroelectric
power stations throughout the world.
Element/strong>
Weight Percent
Element
Weight Percent
Chromium
25.0 - 28.0
Sulfur
0.030 max
Molybdenum
3.0 - 3.5
Carbon
0.030 max
Nickel
1.0 - 3.5
Nitrogen
0.040 max
Manganese
1.0 max
Titanium +
Niobium
0.20 - 1.00
Silicon
1.0 max
Iron
Balance
Phosphorus
0.040 max
Please feel free tocontact usif you have any further
questions.
SEA-CURE®
is a registered Trademark of Plymouth Tube Company.
SEA-CURE®
tubing is manufactured and tested to the requirements
and tolerances of ASTM A-268, A-803, ASME SA-268 and
SA-803 and U.S. Patents 4,119, 765 and 4,942,922.
