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  1. PressEquip

    NDE UT of Forged Ring (Hollow Forging), SA-388, Reference-Block Calibration, Change in Thickness

    Thanks EdStainless for the response These forgings are for custom body flanges and other than the pressure vessel's designer's tolerance (typically the TEMA tolerance) on the finished machined body flanges; there isn't a ASME code standard tolerance. Also the forged rings are typically rough...
  2. PressEquip

    NDE UT of Forged Ring (Hollow Forging), SA-388, Reference-Block Calibration, Change in Thickness

    Hello, Question: For a physical calibration standard/block for angle beam UT, how much of a change in thickness is allowed between the forging being UT inspected and the calibration standard/block? We often buy forged rings that are then machined into body flanges. One of out suppliers only...
  3. PressEquip

    Nut Splitter Tool, H11? H13? Tool Steel, Good Material?

    Thanks EdStainless for the feedback! Interesting how you heat treat the knives you make! My plan is to change material for the next batch we make. I'm still evaluating the options. A Fan of EngTips, share the knowledge
  4. PressEquip

    Nut Splitter Tool, H11? H13? Tool Steel, Good Material?

    Thanks BiPolarMoment for the information and feedback! A Fan of EngTips, share the knowledge
  5. PressEquip

    Nut Splitter Tool, H11? H13? Tool Steel, Good Material?

    BiPolarMoment, with the parts being relatively small, it makes it more challenging to case harden. Like mfgenggear suggested, through harden to 40 HRC and then induction harden the case so the tips are 60-65 HRC. That is interesting and worth considering; lots of steps and might not be very...
  6. PressEquip

    Nut Splitter Tool, H11? H13? Tool Steel, Good Material?

    mfgenggear, thanks for the link to the data sheet! From M2 tool steel data sheets, striving for 62 to 64 HRC seems to be the sweet spot for trying to optimize both high hardness and high impact strength. With how we use the parts, they fail in brittle fracture, not yielding in compression...
  7. PressEquip

    Nut Splitter Tool, H11? H13? Tool Steel, Good Material?

    Thanks mfgenggear for the response! The parts are small, made from 1.38" OD to 1.588" OD annealed round bar into a triangular shape (chisel). We make a couples different sizes of wedges. They are double tempered, then hardness tested, if too hard (above 64 HRC) then a third temper is done...
  8. PressEquip

    Nut Splitter Tool, H11? H13? Tool Steel, Good Material?

    Requesting feedback on tool steel material recommendation for nut splitter wedge. Used to split seized nuts, typically A-194 2H [Nuts have max hardness of 38 HRC (327 Brinell)], nut batches are proof load tested based on proof stress of 175 ksi. In the past, the trades men at the company...
  9. PressEquip

    What material is used for the large rolling shafts in steel mills and plate rolls?

    What material is used for the large rolling shafts that are used to roll plate in steel plate mills? What material is used for the large rolling shafts that are used to roll plate into shell courses or cones? Is a different material used in hot rolling (steel plate mill) than in cold rolling...
  10. PressEquip

    Welding Q&T 4340 to Carbon Steel, As Welded, Asking for Advice/Feedback

    Brilliant suggestion weldstan! Thanks again to all who responded A Fan of EngTips, share the knowledge
  11. PressEquip

    Welding Q&T 4340 to Carbon Steel, As Welded, Asking for Advice/Feedback

    Thank you to all who responded. Time will tell how the repaired fork lifts perform. A Fan of EngTips, share the knowledge
  12. PressEquip

    Welding Q&T 4340 to Carbon Steel, As Welded, Asking for Advice/Feedback

    Thank you in advance for your time and potential responses At the shop they repair equipment used at the facility. In this case it is a fork lift. There is pivot point (pin with a bushing), that eventually develops a flat spot (especially on the ones from the factory which are mild steel)...
  13. PressEquip

    What are the best/better test methods for determining oil cut? These wells have high water cut

    Hello, Thank you all for your responses to date. The main reason for testing is to determine which wells are still economically viable to keep pumping. The company has strategically position itself to be a low cost producer in a certain region. Yes, the aim is to measure 0.1% by volume of...
  14. PressEquip

    What are the best/better test methods for determining oil cut? These wells have high water cut

    Hello, I'm not a petroleum engineer, please be understanding of my limit knowledge My desire is to determine the best test method for measuring oil cut to an accuracy precision of ±0.1% volume. Test needs to be judged from economic perspective too. Needs to be practical and economical...
  15. PressEquip

    H2S, Material Requirements for Wet H2S Service, Phosphorous

    Many oil and gas plant owners and operators have their own material specifications that relate to steel plate exposed to wet H2S service. Often these client specification are partly based on the following: - NACE MR0175/ISO 15156-1:2015 Petroleum, petrochemical, and natural gas industries -...
  16. PressEquip

    Is 17-4 PH, aged at H900 Suitable for a Wrench like Tool? Or is H1025 Better Suited

    Thank you for the insightful replies! A Fan of EngTips, share the knowledge
  17. PressEquip

    Is 17-4 PH, aged at H900 Suitable for a Wrench like Tool? Or is H1025 Better Suited

    Thank you for the responses! "I would use a tool steel (oil hardening) versus 17-4PH. With tool steel you have strength and toughness following proper heat treatment." I'm looking into the availability of 1" thick flat bar in O1 tool steel, it is looking hopeful a supplier in North America...
  18. PressEquip

    Is 17-4 PH, aged at H900 Suitable for a Wrench like Tool? Or is H1025 Better Suited

    Hello, I've been asked to help design a wrench like tool that will be used at ambient temperatures and exposed to grease, fastener lubricant, rain/snow and a petro-chemical plant environment. A material that came up was 17-4, precipitation hardened to H900. The condition H900 has high...
  19. PressEquip

    Flanged Connection with Two Gaskets: One Within Bolt Circle, One Outside Bolt Circle

    Hello, There is an existing piece of pressure equipment built to the ~1968 Edition of ASME Sect. VIII, Div. 1 that has a flanged connection with two gaskets: one within the bolt circle, one outside the bolt circle. One of the flange sides is drilled and tapped with threads. The two gaskets...
  20. PressEquip

    ListBox, VB Script, MathCad15

    For future reference of those who may be reading the thread for help with their MathCad challenges. MathCad, Help > QuickSheets Contents, click on “Programing”, scroll down and click “Mathsoft Controls” Then scroll down to the example you’re interested in, left click and select “Edit Script…”...

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