Milano, 27 novembre 2014!

Transcription

1 Milano, 27 novembre 2014! Gli atti dei convegni e più di contenuti su

2 Tube for hydraulic & instrumentation systems Tube choice matters! 1

3 Safety first! We strongly believe that all accidents can be prevented. We continuously strive for zero accidents and take personal responsibility for safety, because we care. Petra Einarsson President Emergency Number Emergency Exit Protective Equipment Alarm Assembly Point 2

4 Sandvik tube offers Safe and reliable connections Consistence of quality High corrosion resistance High surface smoothness and close dimensional tolerances Ovality, eccentricity and controlled hardness 3

5 Highly integrated production and world leading metallurgy 4

6 Highly integrated production and world leading metallurgy Raw materials Special metallurgy Common finishing Specific finishing Customer segments 5

7 Highly integrated production and world leading metallurgy Raw materials Special metallurgy Common finishing Specific finishing Customer segments Tube Steam generator tubes Coiled tubes Finned tubes Umbilical tubes Composite tubes Energy Automotive Consumables Recycled steel alloying elements Melting Strip Wire Resistance materials Coated strip steel Flapper valve steel Razor blade steel Wire - round, flat and shaped Welding products Heating elements and systems Consumer Electronics Chemical Mining Construction Bar, billets, hollow drill steel Medical 6

8 Superior melt control Chemical compositions higher than the ASTM standard meaning higher PRE and corrosion resistance 7

9 PRE = %Cr + 3,3 %Mo +16 %N Sandvik PRE values vs. international standard 8

10 Integrated Production flow in Sandvik Melting, casting and rolling Hollows extrusion Final tube cold pilgering Hydraulic & Instrumentation Heat Exchanger High Temperature Composite 100% PMI 100% Eddy Current Test Fertilizer Boiler

11 Hot Extrusion Vs Piercing Piercing Older method More defects on internal surface Difficult to process high alloyed grades

12 Hot Extrusion Vs Piercing Hot extrusion Piercing Much better Inner surface Consistent wall thickness Tight tolerances in hollow Easy to inspect mandrel - Forming inner surface Dye is easy to inspect - Forming outer surface Machined billet - No surface defects Centre of the bar has been removed by drilling First extrusion in SANDVIK : 1962 Rough ID surface Much bigger variation for wall thickness No precision control for OD and ID size of hollow. Billet without machining Surface defect might appears. Center of the billet is not removed - Defects in center of the bar may appear and it will be on the Inner surface of the finished tube. Difficult to process high alloyed grades

13 Failures by Piercing Defect from production Inclusion / rust 304L

14 Cold finished tubes Dimension: Tubes with O.D. < 30 mm or t < about 3 mm can normally not be extruded and therefore have to be cold-finished. The normal size range for this finish is O.D mm. Length: Cold-finished tubes are, as a rule, delivered from stock in lengths of about 6 m. However, the coldfinishing process results in a considerable increase of the tube length. In certain cases we can therefore deliver tubes as long as 35 m. The maximum length is decided by auxiliary equipment like annealing furnaces and pickling tanks. Other limiting factors are the handling of the tubes and the transportation. Tolerances: The normal tolerances are closer for the cold-finished than for the extruded finish and the finest tolerances are obtained by cold drawing. Surface finish: Each cold-finishing operation increases the surface smoothness. Cold drawing gives the finest surfaces. Strength: Some applications, e.g. deep oil and gas wells, require tubes with very high strength. In these cases the tubes are supplied cold-worked without subsequent heat treatment 13

15 Heat Treatment When cold working a material, the grains flatten out and become elongated The material grows harder during cold working, through a process called work hardening OPEN OXIDISING ATMOSPHERE FOLLOWED BY PICKLING BRIGHT ANNEALING 14

16 Open Oxidising Atmosphere followed by Pickling C The tubes are held at the high temperature long enough for their structure to undergo the change required Therefore this type of heat treatment is called "solution annealing The time held at the high temperature is often called the "soak time" or "holding time" Then follows rapid cooling in water or air, so as to retain ("freeze") the desired structure. The process leaves a thin oxide layer on the tube surfaces, which has to be pickled away Pickling can also possibly damage the oxide layer and washing procedures are especially difficult when the diameter is small 15

17 Bright Annealing Performed in a protective (reducing) atmosphere, containing hydrogen After this type of annealing, the oxide layer is very thin and the tube surface is bright and the tubes are not pickled afterwards, since this is not necessary It is in practice very difficult to pickle and rinse the inside of such small tubes 16

18 Comparison: external surface Tests carried out in a marine environment at the Corrosion Technology Laboratory located at the NASA Kennedy Space Centre in Florida, USA (12 months) 17

19 Comparison: inner surface Tests carried out in a marine environment at the Corrosion Technology Laboratory located at the NASA Kennedy Space Centre in Florida, USA (12 months) 18

20 Superior production technology Bright annealing for a smoother internal and external finish Surface finish Ra <1 µ m versus Ra = µ m for annealed and pickled materials Less relative tube surface Reduced risk of corrosion causing deposits No carcinogenic pickling residue Bright annealed Ra = 1 µ m max. 19

21 Superior production technology Patented pilgering and heat treatment technology for superior dimensional perfection Precision in tolerance control Long experience Fine ID finish, much better roughness Sandvik standards outperform ASTM A213 / A269 for reliable connections OD min +/-0.08mm OD max +/-0.08mm Sandvik standard WT +/-10% Sandvik standard ovality <+/-0.13mm versus ASTM A213 +/-0.26mm 20

22 Perfect hardness means all bends, no breaks Peace of mind is having a tube that is consistently strong, yet pliable Key Benefits Avoid wall collapses and breaks Easy, reliable bending No leakage Consistent quality for automated bending Always at the top of the standard 21

23 Zero tolerance for leaks Peace of mind is having a tube with a nearly twice as tight tolerance, for leak-tight seals Key Benefits Leak free fittings or couplings Recommended by leading connector companies Proven performance to most multinationals Always at the top of the standard Consistent stock availability; 24/7 delivery 22

24 Corrosion proof your business Peace of mind is having a corrosion expert that helps you choose the right chemical composition for safe, trouble free operations Key Benefits Access to our corrosion expertise Well-documented high performance Resistant to pitting and crevice corrosion Always at the top of the standard Stable level of consistent, highquality stock 23

25 Nine steps towards a clean conscience Peace of mind is receiving clean tubing from your tube supplier to safeguard your trouble-free operations Key Benefits No issue with dirty tubes Avoid costly shutdowns Interior free of scale and contamination Reduced risk of system failure or unplanned maintenance Protects against malfunctioning pumps, filters, valves and actuators 1. Exterior alkaline bath 2. Removal of impurities 3. Interior water cleaning 4. Interior alkaline bath 5. Interior air drying 6. Bright annealing 7. Polishing 8. Interior cleaning 9. Protection plugs 24

26 Setting a standard within the standard 25

27 Sandvik quality assurance Sandvik has a comprehensive quality assurance system implemented throughout the organization The company is certified to a number of quality management system standards, such as the ASME NCA 3800 ISO 9001 ISO PED 97/23/EC EC and RCC-M 26

28 The world of tube Production and distribution For when and where you need it To more effectively expedite your orders, Sandvik Materials Technology has production facilities and distribution centres strategically located close to you. 27

29 Production Distribution R&D facilities Global presence Production, Distribution and R&D facilities 28

30 Hydraulic and Instrumentation tubing P&P Germany Special sizes mm PUST - Sandviken OD mm SCPT - Chomutov Arnprior OD mm SMTC - Arnprior OD mm SMTUS Scranton OD mm PUZJ - Zhenjang OD mm Scranton P&P Sandviken Chomutov Zhenjang

31 H&I Tube Capabilities Sandvik P&P page 30

32 page 31 H&I Tube Capabilities Sandvik Sandviken TM09

33 H&I Tube Capabilities Sandvik Sandviken TM98 page 32

34 H&I Tube Capabilities Sandvik Sandviken TM60/63

35 page 34 H&I Tube Capabilities Sandvik Arnprior

36 H&I Tube Capabilities Sandvik Scranton page 35

37 H&I Capabilities Sandvik PU Zhenjiang page 36

38 Straight lengths or coil Flexibility in supply to meet your needs Straight lengths meters Coiled up to 5000 meters 37

39 Is It worth the risk in complex systems? Tube choice matters Tube often represents less than 5% of the total system cost However buying low cost alternatives can result in Leaking connections Fouling of filters Pressure drops Premature corrosion 38

40 Can your tube take the pressure? erials-center/pressure-calculations/ 39

41 Insist on Sandvik For safety, reliability and control of your systems Insist on the Sandvik grade designation when you buy hydraulic and instrumentation tube. When ordering Insist on ASTM TP 316/316L 904L Sandvik 3R60 Sandvik 2RK65 Alloy 28 Sanicro 28 6 Moly Sandvik 254 SMO Super duplex Sandvik SAF SMO is a trademark owned by Outokumpu OY. 40

42 Applications 41

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