Corrosion protection: General information Corrosion ... · PDF fileCorrosion protection:...

TI-171 Corrosion protection: General information Constructive measures e.g. isolation, avoidance of crevices . . . Electrochemical measures e.g. cathodic protection, ventilation Surface measures Table 3: Measures Procedures Coatings Coat- thicknesses μm Standards Brand names Non-metallic coatings (inorganic/ *organic coatings) Lubrication Oil – ISO 8992 Browning, oxidising Iron oxide coat 0.5 – 2 DIN 50938 Phosphate-coating Phosphate coat – EN 12476 (DIN 50942) Thin-layer coats of lacquer* Lacquer / Plastic / Resin (Fluoropolymer/TEFLON) 3 – 20 DELTA-SEAL, IRCO-SEAL, KLEVER-COL, XYLAN, PTFE, STAND-COTE Dip coating* Epoxide resin / Polyester / Phenolic resin 10 – 20 KTL-KATAPHORESE, ECO 2000 Powder coatings* Polyester powder 60 – 90 PULVER-COLOR, WEMA-KOR-EX Metallic coatings (inorganic coatings) Electroplated coatings: (electrolytic/chemical/acidic/ alkaline/cyanidic) Zinc Cadmium Copper Copper-zinc Nickel Nickel-chrome Copper-nickel Copper-nickel-chrome Tin Copper-tin Silver Copper-silver Zinc-nickel Zinc-cobalt Zinc-iron 3 – 25 ISO 4042 + Conversion layers (e.g. passivation/ chromating – ISO 4520) Hot dip galvanization tZn Zinc min. 40 ISO 10684 (DIN 267-10) ISO 1461 Mechanical plating (plated coatings) Zinc powder on sub-layer copper-plating (chromating possible) 6 – 107 ISO 12683 Diffusion coatings Zinc power burned in/on 15 – 45 EN 13811: SHERARD galvanising ISO 14713-3 Zinc flake coatings (dispersion coatings) Zn/Al flake (argentine) 5 – 20 ISO 10683, DACROMET/GEOMET, DELTA-TONE, ZINCTECH Combi/Duplex coatings (inorganic + organic coatings) Metal/Dispersion coatings* (= inorganic basecoat) Zn/Al flake + thin lacquer (argentine or coloured) 8 – 15 DELTA-TONE + DELTA-SEAL/DELTA-PRO- TEKT DELTA-PROTEKT KL + VH, GEOMET PLUS VL + Thin-layer lacquering*/** (= organic top-coat) * Partial coating possible, lubrication integration possible ** Staining possible Zn/Al flake + Thin lacquer (black) 8 – 15 DACROBLACK, GEOBLACK Material measures Table 4: Measures Procedure Coatings Standards Brand names Non-ferrous metals (NF) Copper (Cu) Brass (CuZn) Bronze (CuNiSi, CuSn) – Ni plated, Cr plated, browned – ISO 8839 (DIN 267-18) (galv. coatings ISO 4042 [DIN 267-9]) KURBUS Special brass 59 KUPRODUR Aluminium (Al) anodised – – Titanium / Titanium alloys – ISO 8839 (DIN 267-18) – Non-metallic materials (K) Plastics PA, POM, PP, PVDF, Nylon – VDI 2544 DIN 34810 - 34816 ULTRAMID, DELRIN, HOSTALEN ... Stainless steels Ferritic steels (F) 1.4016, 1.4568 clean and metallic, bright- polished ISO 3506 (DIN 267-11) EN 10088 (DIN 17224) – Martensite steels (C) 1.4016, 1.4057, 1.4122 ... ISO 3506 (DIN 267-11) EN 10088 (DIN 17442) – Austenitic steels (A) A 1= 1. 4305 A 2 = 1.4301, 1.4303 A 4 = 1.4401 A 3 = 1.4541 A 5 = 1.4571 FSt = 1.4310 ISO 3506 (DIN 267-11) EN 10088 (DIN 17440, 17244) NIRO, NIROSTA, INOX, CRONIFER, REMANIT, UNOX, SINOX ... EN 10088 (DIN 17224) Austenitic / austenitic-ferritic steels with particular resistance against chlorine- induced stress corrosion, e.g. indoor swimming pools «TI-163 Special materials Nickel, nickel alloys metallic, bright-polished DIN 17740, 17742-44 INCONEL, HASTELLOY, MONEL ... Special copper alloys Multi-component bronzes DIN 17662–17665 Sn/Al bronze, NEUSILBER, RESISTIN, CUNIFER ... Special steels EN 10269 (DIN 17240), SEW 390 URANUS, SICROMAL, MANOX ... Corrosion protection measures Products mentioned in this technical documentation are available from MARYLAND METRICS P.O. Box 261 Owings Mills, MD 21117 USA ph: (410)358-3130 (800)638-1830 fx: (410)358-3142 (800)872-9329 web: http://mdmetric.com email: [email protected] copyright 2011 maryland metrics/f. reyher nchfg gmbh + co kg This technical information is provided by the courtesy of F. Reyher Nchfg GmbH + Co KG, Hamburg/Germany, with some editing by Maryland Metrics

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Transcript of Corrosion protection: General information Corrosion ... · PDF fileCorrosion protection:...

TI-171

Corrosion protection: General information

Constructive measurese.g. isolation, avoidance of crevices . . .

Electrochemical measurese.g. cathodic protection, ventilation

Surface measuresTable 3:

Measures Procedures Coatings Coat-thicknesses μm

StandardsBrand names

Non-metalliccoatings(inorganic/ *organiccoatings)

Lubrication Oil – ISO 8992

Browning, oxidising Iron oxide coat 0.5 – 2 DIN 50938

Phosphate-coating Phosphate coat – EN 12476 (DIN 50942)

Thin-layer coats of lacquer* Lacquer / Plastic /Resin (Fluoropolymer/TEFLON)

3 – 20 DELTA-SEAL, IRCO-SEAL, KLEVER-COL,XYLAN, PTFE, STAND-COTE

Dip coating* Epoxide resin / Polyester / Phenolic resin 10 – 20 KTL-KATAPHORESE, ECO 2000

Powder coatings* Polyester powder 60 – 90 PULVER-COLOR, WEMA-KOR-EX

Metalliccoatings(inorganiccoatings)

Electroplated coatings:(electrolytic/chemical/acidic/alkaline/cyanidic)

ZincCadmiumCopperCopper-zincNickelNickel-chromeCopper-nickelCopper-nickel-chromeTinCopper-tinSilverCopper-silverZinc-nickelZinc-cobaltZinc-iron

3 – 25 ISO 4042

+ Conversion layers (e.g. passivation/chromating – ISO 4520)

Hot dip galvanization tZn Zinc min. 40 ISO 10684 (DIN 267-10)ISO 1461

Mechanical plating(plated coatings)

Zinc powder on sub-layer copper-plating(chromating possible)

6 – 107 ISO 12683

Diffusion coatings Zinc power burned in/on 15 – 45 EN 13811: SHERARD galvanisingISO 14713-3

Zinc flake coatings (dispersion coatings)

Zn/Al flake (argentine) 5 – 20 ISO 10683, DACROMET/GEOMET, DELTA-TONE, ZINCTECH

Combi/Duplexcoatings (inorganic +organic coatings)

Metal/Dispersion coatings*(= inorganic basecoat)

Zn/Al flake+ thin lacquer (argentine or coloured)

8 – 15 DELTA-TONE + DELTA-SEAL/DELTA-PRO-TEKTDELTA-PROTEKT KL + VH, GEOMET PLUS VL

+ Thin-layer lacquering*/** (= organic top-coat)

* Partial coating possible,lubrication integration possible

** Staining possible

Zn/Al flake+ Thin lacquer (black)

8 – 15 DACROBLACK, GEOBLACK

Material measuresTable 4:

Measures Procedure Coatings Standards Brand names

Non-ferrousmetals (NF)

Copper (Cu)Brass (CuZn)Bronze (CuNiSi, CuSn)

–Ni plated, Cr plated, browned–

ISO 8839 (DIN 267-18)(galv. coatingsISO 4042 [DIN 267-9])

KURBUSSpecial brass 59KUPRODUR

Aluminium (Al) anodised – –

Titanium / Titanium alloys – ISO 8839 (DIN 267-18) –

Non-metallicmaterials (K)

PlasticsPA, POM, PP, PVDF, Nylon

– VDI 2544DIN 34810 - 34816

ULTRAMID, DELRIN, HOSTALEN ...

Stainlesssteels

Ferritic steels (F)1.4016, 1.4568

clean and metallic, bright-polished

ISO 3506 (DIN 267-11)EN 10088 (DIN 17224)

–

Martensite steels (C)1.4016, 1.4057, 1.4122 ...

ISO 3506 (DIN 267-11)EN 10088 (DIN 17442)

–

Austenitic steels (A)A 1= 1. 4305A 2 = 1.4301, 1.4303A 4 = 1.4401 A 3 = 1.4541 A 5 = 1.4571 FSt = 1.4310

ISO 3506 (DIN 267-11)EN 10088 (DIN 17440, 17244)

NIRO, NIROSTA, INOX,CRONIFER, REMANIT, UNOX,SINOX ...

EN 10088 (DIN 17224)

Austenitic / austenitic-ferritic steels withparticular resistance against chlorine-induced stress corrosion, e.g. indoorswimming pools TI-163

Special materials Nickel, nickel alloys metallic, bright-polished DIN 17740, 17742-44 INCONEL, HASTELLOY, MONEL ...

Special copper alloysMulti-component bronzes

DIN 17662–17665 Sn/Al bronze, NEUSILBER,RESISTIN, CUNIFER ...

Special steels EN 10269 (DIN 17240), SEW 390 URANUS, SICROMAL, MANOX ...

Corrosion protection measures

Products mentioned in this technical documentation are available from MARYLAND METRICS P.O. Box 261 Owings Mills, MD 21117 USA ph: (410)358-3130 (800)638-1830 fx: (410)358-3142 (800)872-9329 web: http://mdmetric.com email: [email protected]

copyright 2011 maryland metrics/f. reyher nchfg gmbh + co kg This technical information is provided by the courtesy of F. Reyher Nchfg GmbH + Co KG, Hamburg/Germany, with some editing by Maryland Metrics