Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations TugboatEng on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  • Users: acrmnsm
  • Content: Threads
  • Order by date
  1. acrmnsm

    CAE plated structure, easy way to connect shells.

    A plated structure, like a ship hull, I am trying to plan my model to make things easier later on and could do with some tips. If I make lots of parts to represent each plate - which I think? is necessary as the sections change even if the dims are the same for various hull plates stringers etc...
  2. acrmnsm

    Crane rails to ASTM A759 - Testing requirements

    I have been asked to approve a materials cert for crane rails that states ASTM A759-10 high strength rails. The cert supplied only lists chemistry and hardness. As detailed in thread507-437086, whilst ASTM A759 only lists hardness, it does refer to ASTM-A1, which in turn refers to A29/A29M which...
  3. acrmnsm

    Axial only constraint to simulate a thread in a pressurized pipe.

    So I am not an abaqus expert, I have asked our local support but they have not been that great. As a more old school guy who has been running simulations since the 90's (I know that doesn't make me that old school as there are a good few users on here who started way before me..), I am always...
  4. acrmnsm

    Installing pipe supports onto a pressure vessel?

    20" diameter pipe, one of the supports has been specced by the piping designer as welded to the pressure vessel below (no actual relationship between the pipe and the pressure vessel) . This strikes me as bit odd, but perhaps there is a good reason. Has anyone ever come across this before?
  5. acrmnsm

    WB 19.2 Bolt Tool - Gives working load as max, min and total.What does the total column mean?

    This is new and I cannot find anything in the help or documentation. Using the bolt tool - we have applied a preload to the bolt, (its 3d, don't ask). So then we apply in steps a load to separate the flange - and we get the working load results. So far so good, but I have no idea what the total...
  6. acrmnsm

    Mix plane182 with thickness option and plane182 axisymmetric elements.

    I have not used Ansys for a while I am more of an Abaqus guy. However a supplier has provided us with a report of an analysis of their product. The analyst has reported that axisymmetric plane182 elements, with some components as non-axisymmetric plane182 with thickness option were used. I am...
  7. acrmnsm

    Inline extractor fan placement in duct run.

    I wonder where is the best place to locate an inline fan in a kitchen extractor design? Its 5m run of 150mm dia round duct. Layout is like this: From kitchen hood 400mm straight through wall. 90 degree bend to vertical 2.5m length vertical 90 degree bend to horizontal 2m run to outlet. My...
  8. acrmnsm

    Understanding CO2 in NACE MR0175 and other corrosion standards.

    I am trying to understand why NACE MR0175 does not give any CO2 maximum concentrations or partial pressures? It seems to imply that CO2 alone is not a worry, although I don't think this is true. I cannot find C02 limits in ISO 11960 or 13680 either. So my question is - I think it is because they...
  9. acrmnsm

    A572 Gr50 4.25" od pipe supply in Houston.

    We are a UK company looking at setting up supply chain in Houston, we normally use S355J2 and similar. In the US this is not available so we are looking at A572 Gr50 which is close. At the moment we are doing this remotely, anyway we are talking to a manufacturing outfit who seem to be having...
  10. acrmnsm

    Welding 316l to Super 13 Martensitic UNS S41426 (SM13CRS)

    Further to the very helpful response to thread330-393368 I have now been asked to look at welding 316L to Super 13 Martensitic UNS S41426 (SM13CRS)with 110ksi yield - I am trying to understand the recommendations for this - the weld spec says 309 filler wire, is that Ok. Secondly the...
  11. acrmnsm

    Can you phosphate too much?

    We have a 4140M component that was phosphated after machining. It was subsequently reworked and then phosphated again. Now in certain areas there are surface markings on the machined surface. See enclosed picture. Its like something has been leached out? Note the groove has been emery papered...
  12. acrmnsm

    Welding 316L to 13Cr - Use 316L wire?

    We have a welding engineer advising us, but I have been asked to verify some of his work. He has reccomended using 309L wire to weld 316L to 13Cr, is this correct. The 309L wire does not have an Mo in it..
  13. acrmnsm

    EN36 - Not usually UTed? Really?

    Point of interest more then anything - A materials supplier has claimed that it is general industry practise (in the UK) that EN36 is not usually ultrasonically inspected before it exits the mill. So the material stockist is holding and normally supplying material that is not UTed. Is this...
  14. acrmnsm

    Weld Clad Hard Facing Qualification and Chemistry..

    I'm trying to understand the ASME Chemistry requirements under section IX. A weld clad can have the chemistry taken from various locations, I cant seem to find which locations are required. Also closer to the fusion line the chemistry of the clad material will not be anythign liek the clad...
  15. acrmnsm

    Qualification of hard facing clad under ASME section IX bend tests?

    Our contract welder is insisting that for our hard facing (625 onto 316) weld clad that we have to have a butt weld tension and root & face bend test? My understanding under section 9 is that we can test the clad in bend and this is acceptable, it seems a butt weld (316-316 using 625 filler) is...
  16. acrmnsm

    S355- anneal to lower yield?

    Hi We have some S355H and we want to carry out some physical testing, we cannot get S275H in the size we require in the timescales required. Do you think we could anneal S355 to achieve a lower yield? So we are planning to cut some sameples from our current hollow section, and anneal them, then...
  17. acrmnsm

    Is C110 nace compliant?

    I'm still learning my way through NACE (well we use ISO 15156 2009), I cannot find any direct reference to C-110 but there is a general consensus around these parts that it is NACE compliant. As I understand 15156 2009 is the latest version, is there anywhere else where I can find official...
  18. acrmnsm

    4330v treatment for wear and corrosion

    We need a tough high yeild material approx 10" dia for some tooling. 17/4 ph was used previously but has had some failures. 4330V has been proposed but we think we might need to treat it post machining to increase wear/corrosion resitance. EG Gas Nitriding and steam tempering (oxidising) What...
  19. acrmnsm

    AISI 4145 or SAE 4145 confusion...

    I'm not sure if I'm posting this in the right place so please correct me. Our company in the oil industry use various "4145" materials, some from bar and some from tubing to machine as end subs for test pieces and end subs/parts for some downhole tooling. We have been having issues with our...
  20. acrmnsm

    4140mod Forged bar -Normalizing - is it still done?

    We have a company mats spec that requires forged bar that we buy in to have been normalised before Q+T. In my structural steel experience, normalising has been pretty much superceded these days. Eg in Rolled structural steels, controlled rolling is used where lower temps in the last stages of...

Part and Inventory Search

Back
Top