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May 2014 Tube Products International 41
products & developments
A-4614 Marchtrenk | Linzer Straße 141
phone: +43 (0)7243 / 58 222 | fax: +43 (0)7243 / 58 222-800
Our company is specialised in the industrial production of pipe
clamps in small and large series and in special constructions
including further processing, coating, pre-assembly and
packing.
Based on our internal high quality requirements we
endeavour to always obtain new quality certificates for our
products, having been certified according to ISO 9001 for
20 years and according to EN 1090 class 2 since 2012.
Convince yourself of the quality, flexibility and know-how by
Rohrbefestigungen Hammerschmid GmbH.
If you have any further questions, please contact Jacqueline
Hammerschmid.
e-mail:
AGILITY. FLEXIBILITY.
PERFORMANCE. EMPATHY.
Companies all around the world challenge us every day
to create new products tailored to their needs.
We embrace these challenges.
We are engaged with
ALUSITANOHORSE.
PRODUCTSMANUFACTURED INPORTUGAL
Zona Industrial da Guia | Pav. 14 - Brejo | 3150 - 467 Guia PBL | Portugal | +351 236 959 060 |
STEAM TRAPS | REDUCING VALVES | CONTROL VALVES | HEAT EXCHANGERS
Tubing for gasoline direct injection
Engineering and advanced materials
group Sandvik is introducing a new type
of seamless stainless steel tube called
PressurfectTM to meet growing demands
from car makers to handle higher fuel
pressures in gasoline direct injection
(GDI) engines.
The new tube will be available in two
grades: standard Pressurfect, an
austenitic chromium-nickel steel for fuel
rails and fuel lines; and Pressurfect XP, a
Duplex (austenitic ferritic) stainless steel
for demanding fuel rail applications.
As the automotive industry seeks out
different paths towards “sustainable
mobility”, GDI is proving to be one
attractive alternative. The technology
enables car makers to produce more
compact engines with lower emissions
and sustained power, while being
affordable for mass production.
Faced with tougher emissions
regulations in Europe, the USA and
China, manufacturers are seeking better
ways to get “clean power” from smaller
combustion engines.
The race is on to find the ultimate
combustion, a process that often
involves raising pressure in the fuel
management system and so requiring
stronger and lighter tubing.
The growing use of corrosive ethanol
blends at higher pressure in the fuel
systems is another driver behind
Sandvik’s materials development.
According to the company, the goal
was to develop a strong, corrosion-
resistant material that could handle
higher pressures with zero risk of stress
corrosion cracking.
The new Pressurfect is claimed to offer
mechanical strength and consistent
quality that is superior to conventional
welded or carbon steel tube. This is
largely due to the steel’s microstructure
and low carbon content, which have
been optimised to avoid jeopardising
properties like corrosion resistance and
mechanical strength. The material has
also been optimised for machinability,
including drilling, turning and other
tasks.
Pressurfect XP is a lightweight Duplex
stainless tube for GDI fuel systems. The
material’s mechanical strength enables
tube walls to be 30 to 40 per cent
thinner, while still handling the same
pressure as thicker tubes.
The Duplex material has also been
optimised to reduce stress corrosion
cracking and fatigue. In addition, it
improves the brazing process, with little
pre-heating or retouch required when
mounting the injector ports or other fuel
systems.
Sandvik Materials Technology –
Sweden