stainless steel

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stainless steel

stainless steelP.O. Box 129, 2650 AC Berkel en Rodenrijs | Hertzstraat 11, 2652 XX Berkel en Rodenrijs The NetherlandsTelephone +31-10 - 511 66 33 | Telefax +31-10 - 511 79 92e-mail: sales@wmaass.nl | www.wmaass.nl


W. Maass Nederland is the number one stockholder ofStainless-, Duplex-, Chrome Moly flanges and fittings in theworld. Our inventory consists of a complete range of products.We can supply complete packages of branch, butt weld, screwed, socket welding fittings,flanges and pipes.IntroductionW. Maass Nederland is located approximately 5 kilometers from Rotterdam Sea- andAirport and close to major highway connections. The total surface of our premises is20.000 m 2 . Our warehouses cover an area of 15.000 m 2 .The volume of our stock is more than 40.000 tons divided over more than 10.000 products.We have in-house testing facilities and a fully equipped machine shop, which enables us toprovide a full range of services to our customers and optimize our flexibility.W. Maass Nederland can depend on a policy which ensures a skilled, well trainedworkforce, state of the art equipment and software.W. Maass Nederland has more than 30 years experience in handling turn key projects andemergency supplies for shut downs of international operating companies.QUALITIY ASSURANCE, CONTROL AND TESTINGWe are familiar with additional testing and certification in accordance with National as wellas International standards and specific customer requirements.W. Maass Nederland is ISO 9001 approved since 1988 and accredited by Lloyd’s.All our products are manufactured by reputable manufacturers approved by allmajor Chemical, Petrochemical and Offshore companies.


stainless steel butt-weld fittingsThe world’s largest andmost comprehensive stockholderfor Stainless Steel Butt-WeldFittingsOur stock program Fittings comprises of• Elbows and 45, 90, 180 degrees Long and Short Radius, Concentric and Eccentric Reducers,Equal- and Reducing Tees and Caps.• Sizes:From ½˝ up to and including 24˝.• Wall thickness available from schedule STD up to and including schedule 160/XXS.• Dimensions and tolerances in accordance with ASME B16.9 and B16.28.Exotics and Nickel AlloysW. Maass Nederland stocks pipes and forgings in a wide variety of nickel and titanium alloysenabling us to produce any kind of special fitting.Material gradesAustenitic Stainless SteelASTM / ASME – SA 403 WP 304 UNS S30400304LS30403304HS30409316 S31600316LS31603321 S32100321HS3210931254 S31254Nickel - AlloysASTM / ASME – SB 127 / SB 165 WP NC UNS N 04400Duplex – SteelASTM / ASME – SA 815 UNS S31803S32205S32750S32760Product rangestainless steel butt-weld fittingsSpecialsOur experience of more than 25 years working with leading Chemical, Petrochemical, Offshoreand Engineering companies, has resulted in a stock with today’s most stringent specifications inaccordance with the ASME/ASTM standards, to cover virtually every demand.Our stock of special fittings and pipes in heavy wall thickness and special sizes up to 24˝is suitable to cover almost every need in making non-standard fittings and emergencydelivery of non-stock material.Our own factory and in-house machine shop enables us to produce all kind of Flanges,Forgings, Nozzles, Fittings and other products to customer requirements on emergency basis.10S 40S 80S 160 XXSElbow 45 degr. Long Radius n n n n nElbow 90 degr. Long Radius n n n n nElbow 180 degr. Long Radius n n nElbow 45 degr. Short Radius n n nElbow 90 degr. Short Radius n n nElbow 180 degr. Short Radius n n n n nEqual Tees n n n n nReducing Tees n n n n nConcentric Reducers n n n n nEccentric Reducers n n n n nCaps n n nn = ex stock availablen = ex mill production


stainless steel screwed socket-weld and branch fittingsThe world’s largest and mostcomprehensive stockholder forStainless Steel, ScrewedSocket-Weld and Branch FittingsOur stock program Fittings comprises of• Elbows 45 and 90 degrees, Street Elbows, Reducing Tees, Half-, Full- and ReducingCouplings, Caps, Unions, Hexagon and Reducing Hexagon Nipples, Reducing Bushing andinserts, Straight- and Swage Nipples and Branch Fittings.• Connections:Screwed NPT, Socket Welding and Butt- Welding ends.• Sizes:From ½˝ up to and including 3˝.• Dimensions in accordance with ASME B16.11, MSS-SP95 and MSS-97Exotics and Nickel AlloysW. Maass Nederland stocks Pipes, Forgings and Billets in a wide variety of nickel and titaniumalloys to produce any kind of special fitting.SpecialsOur own in – house machine shop enables us to produce any kind of Fitting and Branch Fittingin accordance with specific customers requirements.Material gradesAustentic Stainless SteelASTM/ASME – SA 182 F304 UNS S 30400F304L S 30403F304H S 30409F316 S 31600F316L S 31603F321 S 32100F321H S 32109F44S31254F51Nickel - AlloyASTM/ASME – SB 564 UNS N 04400Quality assurance, control and testingWe are familiar with additional testing and certification in accordance with National as well asInternational standards and specific customer requirements.W. Maass Nederland is ISO 9001 approved since 1988 and accredited by Lloyd’s.All our products are manufactured by reputable manufacturers approved by allmajor Chemical, Petrochemical and Offshore companies.stainless steel screwed socket-weld and branch fittings


stainless- and duplex steel flangesThe world’s largest and mostcomprehensive stockholderfor Stainless- and DuplexSteel FlangesOur stock program for flanges comprises of• Stock program Ansi-FlangesWelding-Neck, Slip-On, Blind, Socket-Weld, Screwed, Lap‐Joint andLong Welding-Neck flanges.• Sizes:Pressure classes from 150 lbs up to and including 600 lbs.Sizes: from ½˝ up to and including 36˝.• Pressure classes from 900, 1500 and 2500 lbs.Sizes: from ½˝ up to and including 16˝.• Dimensions and tolerances in accordance with ANSI/ASME B16.47, series A and B,MSS-SP44, API 605, BS 3293.MATERIAL GRADESAustenitic Stainless SteelASTM / ASME – SA 182 F304 UNS S30400F304LS30403F304HS30409F316S31600F316LS31603F316TIF321S32100F321HS32109F347S34700F44S31254Duplex SteelF51S31803F53S32750F55S32760F60S32205EXOTIC AND NICKEL ALLOYSstainless- and duplex steel flangesW. Maass Nederland stocks billets and forgings in a wide variety of nickel and titanium alloys.SPECIALSOur own factory and in-house machine shop enable us to produce all kinds of Flanges,Forgings, Nozzles, Fittings and other products to customer requirements on emergency basis.


Primary Flow ElementsPrimary Flow Elements inaccordance with ASME B 16.48or customer standard.n Spectacle Blindsn Spadesn Spacersn Orifice FlangesPrimary Flow Elementsn Orifice Plates and Restriction Plates.We are capable to supply flow elements in all sizes and customer standards.Extensive rawmaterial and semi-finished products are available ex stock.Our in-house machining equipment guarantee controlled delivery and quality assurance.Quality assurance, control and testingWe are familiar with additional testing and certification in accordance with National as well asInternational standards and specific customer requirements.W. Maass Nederland is ISO 9001 approved since 1988 and accredited by Lloyd’s.All our products are manufactured by reputable manufacturers approved by allmajor Chemical, Petrochemical and Offshore companies.


ContactAddress:Postal address:P.O. Box 1292650 AC Berkel en RodenrijsVisiting address:Hertzstraat 112652 XX Berkel en RodenrijsThe NetherlandsTelephone: +31-10-5116633Telefax: +31-10-5117992E mail: sales@wmaass.nl

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