AquaSan Ni50
The safe alternative
for underwater
wet welding
Think out of the box!
If you’re involved in welding carbon and high tensile steels in a wet environment, you know that constructing cofferdams and habitats is a costly business. Also, that performing welding operations inside these constructions is
not the most popular job.
Think out of the box and consider underwater wet welding – it’s safer and
less expensive.
AquaSan Ni50 – a risk-free solution
Our AquaSan Ni50 nickel alloy electrodes are specified for welding base
materials with a carbon equivalent (CE) of >0.40. The risk of hydrogen
embrittlement is significantly reduced due to the diffusion rate of hydrogen
through the nickel.
AquaSan Ni50 is rapidly
becoming the preferred choice
Nuclear power
For welding in a wet environment
Water cooling pumps
Spent fuel pool liners
Transfer tunnels
Majority of business Section lll Class 3 and pure conventional
(auxiliary systems)
Ocean vessel repairs
For high strength, low alloy steels
Cargo ships
Used in the nuclear and ship repair industries
AquaSan Ni50 is already used for underwater wet welding in a wide range
of applications in the nuclear sector and is increasingly being chosen for wet
welding repairs of ocean-going vessels.
Tankers
Cruise liners
Other vessels
Oil rigs
(deep water, offshore, where higher CE>0.040 steels are required)
Think out of the box!
Real world examples
If you’re involved in welding carbon and high tensile steels in a wet environment, you know that constructing cofferdams and habitats is a costly business. Also, that performing welding operations inside these constructions is
not the most popular job.
Think out of the box and consider underwater wet welding – it’s safer and
less expensive.
AquaSan Ni50 – a risk-free solution
Our AquaSan Ni50 nickel alloy electrodes are specified for welding base
materials with a carbon equivalent (CE) of >0.40. The risk of hydrogen
embrittlement is significantly reduced due to the diffusion rate of hydrogen
through the nickel.
Used in the nuclear and ship repair industries
AquaSan Ni50 is already used for underwater wet welding in a wide range
of applications in the nuclear sector and is increasingly being chosen for wet
welding repairs of ocean-going vessels.
DECOMMISIONING OF A
STEAM GENERATOR IN
NORTH AMERICA
NEW YORK CITY POWER
PLANT, USA:
Intake screens
SHIP REPAIR:
Stabilizer fins, rudders
and chimes
FABRICATOR:
UESI performed installation of bracing
inside the steam generator.
ALLOYS:
316L
FABRICATOR:
A US ship repair operation.
CONDITIONS:
Stainless steel screen exhibited
MIC corrosion in welds.
ALLOYS:
Base metal HY80 and up to HY100
(non hull and pressure piping).
WHY AquaSan Ni50?
Microbiologically Influenced Corosion
(MIC). The electrode worked so
well it was used for all welds on the
project.
CONDITIONS:
Underwater, down to 15 m (50 feet)
in depth. Qualified at 12 m (40 feet)
depth +/-3 m (10 feet).
BASE METAL ALLOYS:
Grade 204B high strength steel to
A36 carbon steel.
CONDITIONS:
Qualified in 6 m (20 feet) of fresh
water.
WHY AquaSan Ni50?
Unable to pass qualification procedures with next best alternative
materials (carbon steel and stainless
waterproofed electrodes).
WHY AquaSan Ni50?
Needed good mechanical properties,
tensile strength and yield and X-Ray
quality. Carbon equivalent (CE) is >0.40.
Sandvik welding wire
Sandvik offers a complete program of
cost-saving products for welding austenitic stainless steels, duplex stainless
steels and nickel alloys.
Sandvik’s products are characterized
by chemical composition within close
tolerances and consistency between
heats and batches, contributing to
trouble-free welding and high-quality
welding joints.
For most standard grades there are
variants with both normal and high
silicon content to suit different welding methods.
A long-term partner to help
future-proof your business
To put you ahead of the game, you need a welding materials supplier who
is also a reliable business partner with long experience of testing its own
materials and keeping its promises.
We are that partner
Sandvik has unmatched expertise in metallurgy and wire production, and
extensive R&D and materials testing capabilities. We develop and manufacture welding products in high performance materials for the most demanding applications. Our nickel alloy electrodes for underwater wet welding
are a typical example of our innovative thinking.
We can help you develop your application
We have the know-how and resources to create the next generation of
material that will give even more value for you and your customers and
help future-proof your business.
Can you afford not to choose Sandvik?
We will be happy to provide trial samples and run cost saving calculations
with AquaSan Ni50 or any of our innovative welding wire grades, based on
your current processes and applications. Thanks to our global presence,
wherever you are located, Sandvik is not far away. Contact us, the potential
cost savings may surprise you!
AquaSan Ni50 is rapidly
becoming the preferred choice
Nuclear power
For welding in a wet environment
Water cooling pumps
Spent fuel pool liners
Transfer tunnels
Majority of business Section lll Class 3 and pure conventional
(auxiliary systems)
Ocean vessel repairs
For high strength, low alloy steels
Cargo ships
Tankers
Cruise liners
O ther vessels
Sandvik Materials Technology
SE-811 81 Sandviken, Sweden, Phone +46 26 26 30 00, Fax +46 26 27 47 20
www.smt.sandvik.com
S-WI056-B-ENG, 10.2014. Printed in Sweden
Oil rigs
(deep water, offshore, where higher CE>0.040 steels are required)