Testing of Silcolloy 1000 treated coupons in neutral, acidic,
andbasic chloride solutions, according toASTMG61,
1
shows Silcolloy 1000 treatment reduces corrosion rates by
an impressive 50x, compared to untreated 316L stainless steel.
ImprovedPerformance inMarineor AcidicEnvironments
Silcolloy 1000 treatment is effective in acidic or salt corrosive envi-
ronments, inwhich the user demands extended service life for an
existingprocesswithout using high-priced alloys. 4000-hour salt
spray testing (salt spray acceleratedweathering test ASTMB117)
shows Silcolloy 1000 treated stainless steel coupons exhibit no sur-
face corrosion, while untreated coupons show surface corrosion and
accelerated corrosion at the coupon hole (Figure 4). Neither coupon
developedpittingover the test period.
1
SilcoTek treatments areavailableworldwide!
®
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SaveThousandswithSilcolloy!
Estimated lifetime cost savings of a typical process system show
Silcolloy treated sample lines, fittings and valveswill save the
user hundreds of thousands of dollars. While the initial cost of an
unprotected stainless steel system is lower than a comparable
Silcolloy 1000 treated system, the overall lifetime cost, considering
replacement cost due to corrosion is nearly double that of aSilcolloy
1000 treated system (see figure 5). High performance alloy systems
offer superlative corrosion performance, but the initial material cost
can be up to six times higher than a comparable stainless steel
system.
Summary
Silcolloy 1000 treatment has extended the life of process systems in
oil and gas production, oil refining, petrochemical processing, aero-
space equipment, food andbeverage processing, and
laboratory testing facilitiesworldwide.
Test data show that Silcolloy 1000 treatment is effective in extend-
ing the corrosion resistance of stainless steel process systemswhile
reducing overall systemmaintenance cost. BecauseSilcolloy 1000
treatment can be applied to amajority of existingprocess compo-
nents; process equipment life is extendedwithout significant re-
engineering.
References
1. M. Zamanzadeh; G. Bayer; G. Rhodes; D. Smith; M. Higgins; LaboratoryCorrosion
Testing of aChemical Vapor DepositedAmorphous SiliconCoating; Matco
Associates, Inc. Pittsburgh, PA; SilcoTekCorporation, Bellefonte, PA. 2005
Figure 4
Comparisonof estimated lifetime costs in a typical process
system, showsSilcolloy 1000 treatment can reduce the overall lifetime cost
of the systemby hundreds of thousands of dollars.
Silcolloy 1000 treated
untreated
Figure 5
Silcolloy 1000demonstrates signi#cant cost savings,
compared to untreated stainless steel or alloys (USdollars).
$600,000
$400,000
$200,000
0
untreated
stainless
steel
high
performance
alloy
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Step1
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Figure2
Silcolloy 1000 treated316L stainless steel coupons show
no crevice corrosion andonly slight pitting corrosion; untreated coupons
exhibit severe crevice corrosion. Testing courtesy ofMatcoAssociates.
Silcolloy 1000 treated
untreated
Lit Cat#SY-001
Silcolloy
®
, Silcosteel
®
andSilcoTek
®
are registered trademarksof SilcoTek
®
Corporation.
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