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Teknisk information Kapitel 10: Normoversigt Flanger DIN 2527 Blindflanger – NT 10 DIN 2576 Plane flanger til påsvejsning – NT 10 DIN 2633 Svejseflanger med krav – NT 16 DIN 2642 Løsflanger – NT 10 DS/EN 1092-1 (erstatter på sigt DIN-normerne) Øvrige DS/EN 10088-1 DS/EN 10204 Flanger og flangesamlinger Runde flanger til rør, ventiler, fittings og tilbehør, PN-betegnede Del 1: Stålflanger: Liste over rustfrie stål Metalliske produkter Typer af inspektionsdokumenter Type 01 - Plane flanger Type 02 - Løsflanger Type 05 - Blindflanger Type 11 - Svejseflanger For yderligere informationer omkring standarder, henvises til de respektive organisationer: ASME ASTM BS DS/EN DIN ISO American Society Of Mechanical Engineers www.asme.org American Society for Testing and Materials www.astm.org BSI British Standards www.bsi-global.com Dansk Standard www.ds.dk Deutsches Institut für Normung www.din.de International Organization for Standardization www.iso.org 3-A 3-A Sanitary Standards, Inc. www. 3-a.org FDA U.S. Food and Drug Administration www.fda.gov 281 www.damstahl.com 01.2013
Chapter 1: What is Stainless Steel? Stainless steel is a large group of metals with a couple of properties in common: The main element is iron (> 50 % Fe = “steel”), and apart from that the steel contains at least 10-12 % chromium (Cr). In its simplest form, no other elements are required in order to make “stainless steel”, proved by the fact that the simplest possible stainless steel (EN 1.4003) contains only 10.5 % Cr, and the rest is iron. Historically, the simple chromium alloyed steel types were invented back in 1912. In 1913, the German Krupp Company added nickel (Ni) in order to improve the mechanical properties (the birth of the austenitic stainless steel), and in 1920, the beneficial effect of adding even small amounts of molybdenum was observed. Thereby, the “acid resistant” stainless steel was invented. Apart from chromium and nickel, the steel may contain a large array of other elements, all of which affect the mechanical or chemical properties in one way or the other. The description of the effect and importance of the different elements is enclosed in Chapter 2. According to their microstructure, the stainless steel types may be classified into five main groups: Austenitic Stainless Steel Usually recognized by a high content of chromium (Cr), high nickel (Ni), low carbon (C) and frequently molybdenum (Mo, up to 6 %), the austenitic group is by far the largest and most important type of stainless steel, and both the common EN 1.4301 (18/8, AISI 304) and the acid resistant steel types (4401/04, AISI 316(L) etc.) belong to this group. Among stainless steel, the EN 1.4301 and 4401 types still make out about 70 % of the world-wide market. These welded pipes are made of ”common stainless steel”, 4301. Mechanically, the austenites are recognized by being non-magnetic; however, cold deformation may lead to the steel being slightly magnetic. In general, the austenitic steel types possess a long elongation (A5). This implies great ductility, and the austenites are generally soft and particularly adapted to plastic deformation such as deep drawing of kitchen sinks. Compared to the other types, the ductile austenites behave a bit like “chewing-gum”, and the excellent combination in between the mechanical ductility and the corrosion resistance has ensured that the austenites are still the most widely used group of stainless steel. Anything from door handles to king-size brewery tanks are made of austenitic stainless steel. In contrast to the ferritic, martensitic and duplex types, the austenitic steel types do not suffer from brittleness at very low temperatures, and their tendency to suffer from ”creep” at higher temperatures is lower as well. In addition, the corrosion resistance of the austenitic steel types is generally high; however, in particular the lower ones (4301 and 4401 classes) are vulnerable to stress corrosion cracking (SCC, see Chapter 4). For that reason, the austenites are not always useful in warm conditions. www.damstahl.com 01.2013 282
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Produktkatalog Damstahl - a member
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Damstahl - a memeber of the NEUMO-E
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Levnedsmiddelfittings / Hygienic fi
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A Levnedsmiddelfittings / Hygienic
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Unionsoversigt Union survey DIN Sve
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Clampoversigt Clamp survey DIN Mini
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Gevindfittings / Threaded fittings
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Klemringsfittings / Compression fit
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Klemringsfittings / Compression fit
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Kuglehaner / Ball valves Kuglehane
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Svejsefittings Flanger Indhold - Sv
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Bøjning N112 Svejst bøjning, 90°
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Rørholder N114 Rørholder med svej
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Rørholder N115 Rørholder i par, m
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Konus N124 Svejste konus, koncentri
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Konus N 124 Svejste konus, koncentr
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T-stykke N127 Svejst t-stykke, opkr
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T-stykke N128 Svejst t-stykke, pres
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Endebund N140 Endebund, kløpperfor
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Svejsekrave N116 Svejsekraver, ISO
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Løsflange N118 Løsflange af alumi
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Løsflange N120 Løsflange, NT 16,
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Løsflange N121 Galvaniseret løsfl
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Svejseflange N123 Svejseflange med
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Blindflange N126 Blindflange, NT 10
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Pressfittings / Pressfittings Muffe
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Pressfittings / Pressfittings Bøjn
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Pressfittings / Pressfittings Overg
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Pressfittings / Pressfittings Adapt
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Pressfittings / Pressfittings T-sty
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Pressfittings / Pressfittings T-sty
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Pressfittings / Pressfittings Venti
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Pressfittings / Pressfittings Bøjn
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Pressfittings / Pressfittings Rørb
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Pressfittings / Pressfittings Pakni
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Rørkoblinger Index - Rørkoblinger
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Rørkobling N200 Rørkobling, NT 10
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Rørkobling N205 Rørkobling, træk
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Koldtvalsede plader Glødede og bej
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Koldtvalsede plader Slebne 1 side,
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Varmtvalsede båndplader Glødede o
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Varmtvalsede tåreplader Glødede o
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Stangstål / Bars Rundstål Varmval
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Stangstål / Bars Rundstål Varmtva
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5.000 m 2 på et år! Stangstål og
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Stangstål / Bars Rundstål, Blankt
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Stangstål / Bars Sekskantet Rustfr
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Stangstål / Bars Fladstål Varmtva
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Stangstål / Bars Fladstål Varmtva
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Stangstål / Bars Fladstål Blanktr
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Stangstål / Bars Fladstål Slebet
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Stangstål / Bars Vinkelstål Glød
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Stangstål / Bars b TB-profiler Las
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Svejste stålrør Kalibrerede og gl
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Svejste stålrør Kalibrerede og gl
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Svejste stålrør Ikke glødede Wel
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Svejste stålrør Ikke glødede Wel
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SUPER DAIRY ® - reducer risikoen f
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Svejste levnedsmiddelrør, DS Indve
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Svejste profilrør Slebne eller usl
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Sømløse rør / Seamless tubes Sø
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Emnerør Glødede og bejdsede Hollo
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Page 198 and 199: Videnspakker BLUE-IQ Vælg den vide
Page 200 and 201: Damstahl - meget mere end rustfrit
Page 202 and 203: Index - Teknisk information 1 Hvad
Page 204 and 205: Teknisk information Kapitel 1: Hvad
Page 206 and 207: Teknisk information Kapitel 2: Rust
Page 208 and 209: Teknisk information Kapitel 3: Anve
Page 218 and 219: Teknisk information Kapitel 5: Ferr
Page 226 and 227: Teknisk information Kapitel 6: Bear
Page 232 and 233: Teknisk information Kapitel 7: Kemi
Page 234 and 235: Teknisk information Kapitel 8: Svej
Page 240 and 241: Kapitel 9: Tabel over de hyppigst a
Page 242 and 243: Teknisk information Kapitel 10: Nor
Page 246 and 247: Technical information Chapter 1: Wh
Page 248 and 249: Technical information Chapter 2: Th
Page 250 and 251: Technical information Chapter 3: Ap
Page 256 and 257: Technical information Chapter 4: Co
Page 262 and 263: Technical information Chapter 5: Fe
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Page 278 and 279: Technical information Chapter 8: We
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Page 287: Damstahl a/s Danmarksvej 28 DK-8660
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