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  1. sprintcar

    What is the pH of H2SO4 at 18.9 g/L concentration in water

    I can't find the conversion factors on line and it's been WAY too long ago for college chemistry! Thanks folks! Help rescue exotic & endangered birds. Feathered Friends Forever (.org) is the largest non-profit parrot sanctuary in the US, 2nd worldwide with over 800 birds on site. Check the...
  2. sprintcar

    ?How to GoTo from list to a worksheet with workbook?

    I posted this in a different forum, (Thanks IRstuff) so let's see if how you folks can help. I've been away from spreadsheet building for too long I guess. I can't find it in my Excel Help section - I guess MS is getting cheaper with the assistance. I've created a workbook of customers, cell...
  3. sprintcar

    Excel How to go from list to worksheet?

    I seem to recall a 'go to' function in either Excel or VB that let's you select a name from a list on worksheet "list" and have the program open that selected sheet, all in the same workbook of course. I can't find it in my Excel Help section - I guess MS is getting cheaper with the assistance...
  4. sprintcar

    Geothermal HVAC, tank vs groundwater?

    Hi folks. I'm considering geothermal for the house and the weekend discussion was using a reservoir vs putting in wells. Using the buried coils in this GA dry clay is the last resort. I could dig out my Marks handbook and do the thermal calc, but I figured somebody here probably already has...
  5. sprintcar

    URGENT! Need Brinell of 4150 at inner diameter of bar

    Shaft is made from 4150 non-resulphurized steel, machined from a 11.5" (292mm) bar. The subject diameter is 7" (178mm) where we need to know the estimated Brinell hardness. At the OD of this material the Brinell is typically 269/321. However, the information we have from the vendor stops at 8"...
  6. sprintcar

    HELP! Need Brinell value near shaft center - 4150

    Shaft is made from 4150 non-resulphurized steel, machined from a 11.5" (292mm) bar. The subject diameter is 7" (178mm) where we need to know the estimated Brinell hardness. At the OD of this material the Brinell is typically 269/321. However, the information we have from the vendor stops at 8"...
  7. sprintcar

    Stepped Shaft torsional stiffness/rigidity calculator?

    About 2 years ago I made a spreadsheet to calculate shaft stiffness and the L3/D4 values along with total weight and mass moment of inertia. Works fine. I'm going from straight shafts to stepped shaft design with different diameter/length segments for bearing fits, etc. Here's where I'm...
  8. sprintcar

    Flange Sizing?

    I can't find the Pressure/Temp ratings for std (ie 600lb) flanges so I need a bit of help. What flange rating would you recommend for the following? Pump discharge, cast iron construction 6" diameter test pressure is 1075psi operating temperature only 100 degF Thanks folks! "If A equals...
  9. sprintcar

    Adding results to a list?

    I've got a spreadsheet that calculates 2 values for data entered along with a drawing number. I would like to create a list that tracks the drawing number and the resulting values automatically so there is a file of work that has been done. I did a Macro to copy the dwg number and values, then...
  10. sprintcar

    Need source for Alloy 20 metric fasteners in US

    Current project involves hex nuts, hex cap screws and double end studs in Stainless but would like to have better yeild than A4 (316) can provide. Does anyone have a good supplier for Alloy 20 (Carpenter Tech is the parent) or a similar readily available metric? Sizes are M20 and M24 on this...
  11. sprintcar

    Need source for Alloy 20 Metric fasteners in US

    Current project involves hex nuts, hex cap screws and double end studs in Stainless but would like to have better yeild than A4 (316) can provide. Does anyone have a good supplier for Alloy 20 (Carpenter Tech is the parent) or a similar readily available metric? Sizes are M20 and M24 on this...
  12. sprintcar

    Torque for M24 SS 316 HCS w/ anti-seize?

    Need torque value (ft-lbs) for type 316 stainless M24 bolt / nut joint, at 60% yield with anti-seize on threads. Assumed fastener yield at 50ksi thus 30ksi when tight. Tensile area is 352.5mm^2 Oiled value came out to 276ft-lb (using 1" bolt) NASA spec for 316 with dry lube is 155ft-lb, but...
  13. sprintcar

    Best Material for 20,000 ppm chlorides?

    What's commercially available in Fasteners and bar stock that will work in this concentration? Temperature is well below 200F. A20 wasn't good enough and we've looked at 2205. Any recommendations? Thanks! "If A equals success, then the formula is: A = X + Y + Z, X is work. Y is play. Z is...
  14. sprintcar

    Material for cold chisel or punch?

    I'm looking for the best material to use for a special punch that needs to withstand heavy hammer blows - It will be about 10" overall, with a 6" (152mm)long body diameter of 0.65" (16.5mm) for clearance. One end will be 1" diameter and radiused for hammer impact. The other end screws into the...
  15. sprintcar

    Need UNC & Acme Thread Gauge Dimensions Please

    Anyone have a chart or website of dimensions required to machine thread gauges? I had a chart a few years back but they changed my computer and nuked half the hard drive data. Web search hasn't turned up anything worth a darn yet, but I'll keep trying. Need Male and Female (ie stud and...
  16. sprintcar

    Jumping beam calculations?

    No, this isn't homework. Simply supported I-beam, 48" between supports. One support is a hydraulic jack, the other end rests on the support. ============== ___^_____|______^___ Center of beam is chained to a test specimen. Beam is 6x6 w20 A36 steel, weight 80lbs. Applying a 10k lb force...
  17. sprintcar

    Rotating Shaft Equipment Grounding Specs??

    I need a bit of help folks. We're trying to explain to a Russian customer that all the individual components of a pump assembly (ie shell, bearing assy, pedestal) do not require individual grounding lugs since they are assembled as a unit (bare metal contact) with multiple fasteners. This is...
  18. sprintcar

    Standard draft angles for sand cast iron parts?

    Does anyone have a good resource for this? I'm rewriting a spec and would like something more substantial than "tribal knowledge" or "between one and five degrees, depending on the mood of the pattern maker". Most foundries have their own guidelines but I'm looking for any industry standards...
  19. sprintcar

    Annular Flow calculator?

    I'm looking for a quick spreadsheet or formulas to calculate annular flow. I've tried converting area to nozzle diameter (ie Cameron Hyd Data) but results were much too high. Someone has "borrowed" the copy of Crane Tech Paper 410 which is supposed to have the info I need - Purchasing will...
  20. sprintcar

    Need Annular flow calculator

    I'm looking for a spreadsheet to calculate flow thru an annulus given D1 and D2, the width of the 'orifice plate' and differential pressure on each side of the annulus. Fluid is clear water at 80 deg F. Thanks! "If A equals success, then the formula is: A = X + Y + Z, X is work. Y is play. Z...

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