Materials and skills which never go rusty - Örnalp Unozon AB

Materials and skills
which never go rusty

New company structure
offers new opportunities
– most of all for our customers
Örnalp and Unozon are two strong companies with a lot of things
in common. We have the same business philosophy and work in
related business sectors – with rust free materials. Our respective
business premises, furthermore, are just a stone’s throw away from
one and other in the expanding Örnsköldsvik area. Thus, we have
now taken that affinity to its natural conclusion and got hitched.
Our marriage has been facilitated by the fact that we now have the same owner
– Vinovo. The amalgamation and form of ownership brings a number of advantages
along with it for customers:
• An even broader selection of products and services.
• Coordinated purchasing, production and administration.
• An even greater knowledge base, placed at your disposal.
• A strong owner, which gives confidence, continuity and good investment
opportunities.
All that we had, we still hold – our products, business premises and specialist skills
are still there when you need them. Now, however, we are quite simply twice as big
and three times as strong.
When it’s quality that counts
The pressure in our tanks and heat
exchangers is often extremely high. This
also puts pressure on the manufacturing
process.
Örnalp and Unozon are two of
Europe’s leading suppliers and, when it
comes to titanium, aluminium and stainless
steel, we have placed products all
over the world. Down the years we have
built up a wealth of experience, both in
welding and in the processing of metal
based products. For this reason, we always
relish the challenge of working with
clients who come to us with exacting
specifications for their welded products.
Our greatest resource is our work force.
A team that is renowned for its skilled
craftsmanship and invaluable expertise in
metals and materials, their potential use
and areas of application.
In order to maintain and then expand
the levels of expertise within the company,
we have an apprenticeship scheme
whereby young, newly recruited staff
can shadow their older counterparts on
various projects.
We also work in conjunction with
Örnsköldsvik Industrial Group in order to
ensure a high standard of training across
the board. This is yet another comfort
zone and quality assurance factor for you
the client.

www.ornalpunozon.se

Pressure vessel – Titanium ASTM B265 Gr 2 in a one off design. We have experience of, amongst other things, BS 5500, EN 13445/480,
ASME Div VIII, AD Merkblatt and CE-marking of products.
Time is money
We always ensure that your order is handled efficiently and effectively. With our own dedicated
titanium stocks and a sophisticated logistics system, rapid delivery – according to an agreed
time schedule – is a matter of course where we are concerned. This is something more and more
clients have noticed and appreciate.
Many of the materials with which we work are costly and complicated in terms of
processing. For this reason, we continually strive to streamline the manufacturing
process in order to become even more efficient and thereby lower costs for our
customers.
Örnalp and Unozon have machine parks in convenient locations, which means
that we are in a position to respond very quickly to the manufacturing needs of our
clients. We have state of the art CNC machines, as well as drilling equipment, twelve
metre units and bed cutters.
Dedicated design
Our in house design department specialises in pressure bearing equipment. With the
expertise in metal and material working at our disposal, our design draughtsmen are
able to react very quickly to your requirements and then propose the best solution.
And given the fact that we have our own construction facility, we can follow the
production chain from start to finish. This facilitates a good feedback factor and an
extensive skills base.
We have had a longstanding
working relationship
with regards to receptacles for
various chemical processes.
Sometimes at short notice, they
have been able to come up
with a solution when something
unexpected has happened in
one of our plants. This is very
reassuring as far as we are
concerned!
Erik Thalén,
Technical Manager, SEKAB

We specialise in heat exchangers.
Extreme demands
– are meat and drink to us
Our job is full of challenges. We like that. The key thing is to find clever solutions for
demanding situations. Often at very short notice.
Our clients come from, amongst other
places, the defence forces, offshore,
the paper and pulp industry and from
within the chemical industry. These
are widely differing business sectors,
which place a broad range of very
specific demands on us as the supplier.
We build products for the marine
environment, which must be rust free;
products for hard wearing implements,
which must be light to the
touch and products having extreme
demands with regards to cleanliness,
to take just a number of examples.
This requires flexibility on our part and
an ability to quickly change from one
thing to another and this, in turn, has
encouraged our staff to specialise in
certain products and techniques.
We specialise in heat exchangers
Heat exchangers, made in various
sizes and from different materials,
are something of a speciality with us
here at Örnalp/Unozon and we design
them according to THEMES.
One of our areas of special
competence is heat exchangers made
of multi layered materials. Here,
explosion plated materials are welded
together via so called explosion welding.
We also have 70 years experience
in building stainless steel heat
exchangers.
International experience
We are licensed heat exchanger
manufacturers for the European and
Chinese markets and we are certified
with DNV, Lloyds, ABS and BV to
manufacture goods for seagoing
vessels.
We have extensive experience of
thermal design work and use HTFS
software in this context.
www.ornalpunozon.se

Titanium reactor for the production of chlorine dioxide.
Titanium
A small number of companies in Sweden specialise in titanium. We are one of them. In other
words; we know how to construct, design and weld our products to the client’s specifications
with stringent demands being placed on us in terms of a strong and durable product, which at
the same time must have a low weight factor.
For the most part, we work with homogenous materials. This is often both the best
and cheapest method. Sometimes, however, other solutions are required, such as
explosion welded materials, or loose lining perhaps, where a receptacle is covered
with thin titanium plating.
Titanium is difficult to weld. It requires specialist techniques and a protected
environment, because titanium alters its properties when coming into contact with
oxygen during welding. We weld according to ISO 3834 standards and all our
welders are is licensed.
Örnalp have a great range
of skills and know their
stuff when it comes to titanium
alloys. We contact them any time
a major stoppage occurs and
have only good things to say
about the cooperation levels.
Gunnar Rönning,
Maintenance Engineer, Korsnäs

Pressure cyclone TCJ 2000.
Stainless steel
Our experience in plate processing and manufacturing in stainless
steel goes back almost 70 years. This means that we know
most things about production within this area. One example of
our breadth of knowledge is our work with special alloys such as
254SMO, duplex and 904L.
A large part of our production base is made up of production equipment and pressure
vessels for the technical side of the chemical industry, as well as the paper pulp
industry. For the most part, our products are to be found abroad, mainly in Asia and
South America.
A couple of years ago, Öviks Rostfria Svetstjänst AB, came onboard and added
a great range of skills to our company portfolio. This means that we have a substantial
skills base and great capacity levels within stainless steel welding. We have
modern equipment and carry out both MIG/MAG, CMT and TIG operations such as
plasma and flux cored wire welding.
I have a personal working
relationship with Unozon
going back 20 years. They work
as subcontractors for us when
we need certain machine and assembly
services. They have great
skills levels and are very good
manufacturers. When we give
them a project, we know that it
will be done correctly and will be
delivered on time. Quite simply,
they do an excellent job.
Ulf Sjöström, Sr Sales Mgr,
Metso Paper, Sundsvall
www.ornalpunozon.se

Pressure tanks made of aluminium alloy EN-AW 5083.
Aluminium
We have extensive experience of welding and processing with aluminium. A material which is
rust free and at the same time is both light and strong. This means that aluminium is suitable
for, amongst other things, military products and marine based appliances.
We enjoy using the experience we have to help our clients in the construction of
aluminium products. The weakest point in any construction is the weld. For this
reason, we have, amongst other things, invested in our own dedicated oven for heat
treatments involving aluminium. We carry out both solution treatments and accelerated
ageing. This means that we can retain up to 85 percent of the original tenacity
within the material. Örnalp/Unozon often makes use of CMT welds in order to use
as little heat as possible, where the aluminium construction element in the weld is
concerned. All our welders are licensed and we are DNV approved for the welding of
aluminium for classified vessel construction and secondary structures for aircraft.
Örnalp has manufactured
cockpits, masts
and tanks for us – based on our
drawings. Everything worked
very well and according to our
wishes. With them, you basically
always get things that are ready
for immediate use.
Håkan Wedin,
Project Manager, Dockstavarvet

From Örnsköldsvik
to the great world outside
Our focus is naturally always to provide our clients with the right product, with the right quality
and at the right time. We are happy and proud to be able to present below some of our end
products, where we have proved to be a very useful cog in our client's business activities.
Emergency response vessel 90, Docksta
Varv.
Cockpits for ship cranes, MacGREGOR Cranes.
Titanium equipment delivered to Eka
Chemicals chlorine dioxide plant in Alizay.
CV9035 NL, BAE Systems Hägglunds.
Titanium tower, Boliden Mineral.
www.ornalpunozon.se

Titanium
Comparison values
Material Density kg/m3 Melting point °C Coefficient of Thermal conductivity Electrical resistivity Modulus of
W / (m.K) thermal expansion W / (m.K) Ohm x m elasticity MPa
Titanium 4505 1688 8,4 x 10 -6 17 55 x 10 -8 106,4 x 10 3
Iron 7900 1530 12 x 10 -6 63 9,7 x 10 -8 206,0 x 10 3
Aluminium 2700 660 23 x 10 -6 205 2,7 x 10 -8 69,2 x 10 3
Nickel 8900 1453 15 x 10 -6 92 9,5 x 10 -8 206,0 x 10 3
Copper 8900 1083 17 x 10 -6 385 1,7 x 10 -8 107,9 x 10 3
Stainless steel 7900 1410 17 x 10 -6 16 72 x 10 -8 200,1 x 10 3
Brass 8400 970 18,5 x 10 -6 100 7,5 x 10 -8 107,9 x 10 3
Monel 8800 1325 14 x 10 -6 26 48 x 10 -8 179,5 x 10 3
Analyses and mechanical properties
Quality Gr. 1 Gr. 2 Gr. 4 Gr. 5 Gr. 7 Gr. 9 Gr .11 Gr. 12
Analysis % Fe max 0,20 0,30 0,50 0,40 0,30 0,25 0,20 0,30
O max 0,18 0,25 0,40 0,20 0,25 0,15 0,18 0,25
N max 0,03 0,03 0,05 0,05 0,03 0,02 0,03 0,03
C max 0,08 0,08 0,08 0,08 0,08 0,08 0,08 0,08
H max 0,015 0,015 0,015 0,015 0,015 0,015 0,015 0,015
Pd - - - - 0,12-0,25 - 0,12-0,25 -
Al - - - 5,5-6,7 - 2,5-3,5 - -
V - - - 3,5-4,5 - 2,0-3,0 - -
M0 - - - - - - - 0,2-0,4
Yield point
N/mm 2 Rp 0,2 min 170 275 483 828 275 483 170 345
Ultimate Tensile Strength
N/mm 2 Rm 240 345 550 895 345 620 240 483
Vickers Hardness ca 140 170 310 330 170 250 140 170
Bongation
5 x d % min 24 20 15 10 20 15 24 18
Calculated values at 20°C and higher temperatures
Temp. °C Gr. 2 N/mm
-40+20 173
50 173
75 167
100 153
150 126
200 102
250 85
In strength calculations, the creep properties of titanium at 20°C must also be the basis of the
calculated values. The following calculated values are based on the creep-rupture value for 100,000
hours. From the strength standpoint, the maximum useful temperature for titanium alloy grades is
about 350°C. For unstressed components, the oxidation limit is fixed at about 500°C.
Örnalp is basically out on its own where titanium is
concerned but still very skilled for all that. Their greatest
strength is their reliability. They always do a great job.
Anders Ljungberg, Head of Maintenance, Akzo Nobel Skoghall

Stainless steel
Austenitic Ferritic Austenitic Duplex Martensitic Ferritic
Materials data
Steel designations Typical chemical composition, % National steel designations superseded by EN
EN ASTM/UNS C N Cr Ni Mo Others BS/UK DIN/Ger NF/Fra SS/Swe
1.4003 S40977 0.02 – 11.5 0.5 – – – 1.4003 – –
1.4000 410S 0.03 0.01 12.5 – – – 403S17 1.4000 Z8 C12 2301
1.4016 430 0.04 – 16,5 – – – 430S17 1.4016 Z8 C17 2320
1.4521 444 0.02 0.01 17.8 – 2.1 Ti – 1.4521 Z3 CDT 18-02 2326
1.4006 410 0.12 0.04 12 – – – 410S21 1.4006 Z10 C13 2302
1.4005 416 0.10 0.04 13 – – S 416S21 1.4005 Z11 CF13 2380
1.4021 420 0.20 – 13 – – – 420S29 1.4021 Z20 C13 2303
1.4028 420 0.30 – 12.5 – – – 420S45 1.4028 Z33 C13 2304
1.4313 S41500 0.03 0.04 12.5 4.1 0.6 – – 1.4313 Z6 CN 13-04 2385
1.4548 – 0.05 0.07 15.5 4.2 – Mn – – – –
1.4418 – 0.03 – 16 5 1 – – 1.4418 Z6 CND 16-05-01 2387
1.4162 S32101 0.03 0.22 21.5 1.5 0.3 5Mn – – – –
1.4362 S32304 0.02 0.10 23 4.8 0.3 – – 1.4362 Z3 CN 23-04 Az 2327
1.4462 S32205 0.02 0.17 22 5.7 3.1 – 318S13 1.4462 Z3 CND 22-05 Az 2377
1.4501 S32760 0.02 0.27 25.4 6.9 3.8 W – – – –
1.4410 S32750 0.02 0.27 25 7 4 – – – Z3 CND 25-06 Az 2328
1.3805 – 0.36 0.02 – – – 20.7Mn – – – –
1.4310 301 0.10 – 17 7 – – 301S21 1.4310 Z11 CN 18-08 2331
1.4318 301LN 0.02 0.14 17.7 6.5 – – – – Z3 CN 18-07 Az –
1.4372 201 0.05 0.20 17 4 – 7Mn 284S16 – Z12 CMN 17-07 Az –
1.4568 631 0.08 0.02 16.6 7.6 – Mn – 1.4568 Z9 CNA 17-07 2388
1.4301 304 0.04 – 18.1 8.1 – – 304S31 1.4301 Z7 CN 18-09 2333
1.4307 304L 0.02 – 18.1 8.1 – – 304S11 1.4307 Z3 CN 18-10 2352
1.4311 304LN 0.02 0.14 18.5 10.5 – – 304S61 1.4311 Z3 CN 18-10 Az 2371
1.4541 321 0.04 – 17.3 9.1 – Ti 321S31 1.4541 Z6 CNT 18-10 2337
1.4550 347 0.05 0.04 17.5 9.5 – Nb 347S31 1.4550 Z6 CNNb 18-10 2338
1.4305 303 0.05 – 17.3 8.2 – S 303S31 1.4305 Z8 CNF 18-09 2346
1.4303 305 0.04 – 17.7 12.5 – – 305S19 1.4303 Z1 CN 18-12 –
1.4306 304L 0.02 – 18.2 10.1 – – 304S11 1.4306 Z3 CN 18-10 2352
1.4567 S30430 0.01 – 17.7 9.7 – 3Cu 304S17 1.4567 Z3 CNU 18-09 FF –
– S30464 0.02 0.05 19 13.5 – B – – – –
1.4401 316 0.04 – 17.2 10.1 2.1 – 316S31 1.4401 Z7 CND 17-11-02 2347
1.4404 316L 0.02 – 17.2 10.1 2.1 – 316S11 1.4404 Z3 CND 17-11-02 2348
1.4427 316F 0.02 0.05 16.9 10.7 2.6 S – – – –
1.4436 316 0.04 – 16.9 10.7 2.6 – 316S33 1.4436 Z7 CND 18-12-03 2343
1.4432 316L 0.02 – 16.9 10.7 2.6 – 316S13 1.4432 Z3 CND 18-14-03 2353
1.4406 316LN 0.02 0.14 17.2 10.3 2.1 – 316S61 1.4406 Z3 CND 17-11 Az –
1.4429 S31653 0.02 0.14 17.3 12.5 2.6 – 316S63 1.4429 Z3 CND 17-12 Az 2 375
1.4571 316Ti 0.04 – 16.8 10.9 2.1 Ti 320S31 1.4571 Z6 CNDT 17-12 2350
1.4435 316L 0.02 – 17.3 12.6 2.6 – 316S13 1.4435 Z3 CND 18-14-03 2353
1.3952 – 0.02 0.18 16.9 13.2 2.7 Mn – – – –
1.4438 317L 0.02 – 18.2 13.7 3.1 – 317S12 1.4438 Z3 CND 19-15-04 2367
1.4439 317LMN 0.02 0.14 17.8 12.7 4.1 – – 1.4439 Z3 CND 18-14-05 Az –
1.4466 S31050 0.01 0.12 25 22.3 2.1 – – 1.4466 Z2 CND 25-22 Az –
1.3964 – 0.02 0.27 20.5 15.4 3.2 Mn, Nb – – – –
1.4539 904L 0.01 – 20 25 4.3 1.5Cu 904S13 1.4539 Z2 NCDU 25-20 2562
1.4529 N08926 0.01 0.20 20.5 24.8 6.5 Cu – – – –
1.4547 S31254 0.01 0.20 20 18 6.1 Cu – – – 2378
1.4565 S34565 0.02 0.45 24 17 4.5 5.5Mn – 1.4565 – –
1.4713 – 0.07 0.02 6.5 – – 0.7Al – 1.4713 – –
1.4724 – 0.08 0.02 12.3 – – 0.8Al – 1.4724 Z13 C13 –
1.4742 – 0.08 0.02 17.5 – – 1Al – 1.4742 Z12 CAS 18 –
1.4762 S44600 0.08 0.02 23.4 – – 1.4Al – 1.4762 Z12 CAS 25 –
1.4948 304H 0.05 – 18.1 8.3 – – 304S51 1.4948 Z6 CN 18-09 2333
1.4878 321 0.05 – 17.3 9.1 – Ti 321S51 1.4878 Z6 CNT 18-10 2337
1.4818 S30415 0.05 0.15 18.5 9.5 – 1.3Si, Ce – – – 2372
1.4833 309S 0.06 – 22.3 12.6 – – 309S16 1.4833 Z15 CN 24-13 –
1.4828 S30900 0.04 – 20 12 – 2Si – 1.4828 Z17 CNS 20-12 –
1.4835 S30815 0.09 0.17 21 11 – 1.6Si, Ce – – – 2368
1.4845 310S 0.05 – 25 20 – – 310S16 1.4845 Z8 CN 25-20 2361
1.4841 314 0.07 0.05 24.5 19.5 – 2Si 314S25 1.4841 Z15 CNS 25-20 –
www.ornalpunozon.se

ViFlow – a strong constellation
ViFlow design, construct and produce
highly efficient and customeradapted
heat exchangers, pressure
vessels and other production
equipment in technically demanding
materials such as titanium, aluminium,
different types of stainless steel
and carbon steel.
ViFlow also carries out in stallation
and mainte n ance and other peripheral
services.
ViFlow carries out the design, manufacture
and installation of complete
piping systems for industrial
purposes.
Operations maintain a high level
of expertise with its own department
which carries out design and thermal
calculations. ViFlow’s headquarters
are in Stockholm and consists of
three units, the manufacturing units
Örnalp/Unozon and RAMAB along
with the Finnish sales company
ViFlow Finland. The busi ness area
has ambition for further growth in
the future.
www.viflow.fi www.ramab.se www.ornalpunozon.se
DELIVERY ADDRESS: Kavelv. 8, 894 35 Själevad, Sweden
POSTAL ADDRESS: Box 424, 891 28 Örnsköldsvik
PHONE: 0660-29 21 00 FAX: 0660-29 21 51
WEB: www.ornalp.se
E-MAIL: info@ornalpunozon.se
www.ornalpunozon.se