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 cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Recent content by Pras

  1. Pras

    SS316L diaphragm

    unclesyd / BobUXL / mcguire, Very sorry for responding after a very long gap in this thread. Let me put my requirement in simpler words :- I need to use SS316L and also SS316 diaphragms in one of the pressure measurement applications. The thickness of the diaphragms would vary from 0.1mm to...
  2. Pras

    Diaphragm deflection

    Hi, I need to know the formula for calculating deflection of corrugated (concentrically) diaphragms under application of pressure. If I am not mistaken, this formula is obtained by modifying the deflection formula for flat diaphragms, wherein the effect of corrugation is taken care by...
  3. Pras

    SS316L diaphragm

    unclesyd, Do we need to worry about IGC while the diaphragms are being heated to 1200°F or so. Also do we need to have inert atmosphere while performing the stress relieving?
  4. Pras

    SS316L diaphragm

    unclesyd / BobUXL, Thanks for your reply. unclehyd, I need to use the said diaphragms for very sensitive pressure measurment application. Hence would like to ensure that all the residual stresses after cold working are effectively removed. Pras
  5. Pras

    SS316L diaphragm

    Hi, I need to know the stress relieving procedure (time/temp) for SS316L corrugated diaphragms (0.1mm thk, 48mm diameter). Thanks in advance Pras
  6. Pras

    Glass Bursting pressure

    Hi, I need to know the bursting pressure of both laminated glass (100mmOD,3mm thk) and Toughened glass (100mmOD,3mm thk). Do I need to do the test myself and find out or would this information be available with glass manufacturers / reference books etc. Thanks in advance. Pras
  7. Pras

    Bourdon tubes

    Hi, I need following info on the bourdon tube manufacturing : What kind of heat treatment should be given after tube bending, if the materials are as follows : (I) SS316 (II)CuSn8 (Werkstoff-Nr. 2.1030 DIN 17662) (III)CuZn15 (Werkstoff-Nr. 2.0240) Thanks in advance. Pras
  8. Pras

    Information on Pressure Gauges

    Hi, I am looking for a good book or website where technical information on pressure gauges like types, materials, design criteria etc would be available. Could anyone help me out on this please. thanks in advance. pras
  9. Pras

    JIS flanges

    Hi, I need to use the JIS flanges in materials equivalent to ASTM A182F316L/ASTM A351 CF3M and ASTM A182 F316 / ASTM A351 CF8M. Hence would like to know the following :- (1) Relevant JIS standard for pressure temperature ratings (2) Relavant JIS standard for material details (for stainless...
  10. Pras

    Chemical Compatibility

    TVP / Mcguire, Thanks for your reply. Would you please let me know if Chemical Compatibility charts for different materials are available on internet. Thanks in advance. Pras
  11. Pras

    Chemical Compatibility

    Hello, Does anybody know if following materials are chemically compatible with Hexene CH3(CH2)3CH=CH2 in the temperature range of 40°C to 200°C. (1) Titanium (ASTM B348 gr 2) (2) ASTM A351 gr CF3M (3) Inconel 718 rings(with nickel coating) I have not been able to get this medium in chemical...
  12. Pras

    Spring Failure

    TVP / Mcguire, I need to know the applicable international standards ASTM / EN for procurement of Hastelloy C-276 spring wires.I would like the spring suppliers to deliver the wires with other general specs as per this standard. I understand that standard ASTM B471 was applicable to nickel...
  13. Pras

    Spring Failure

    butelja / TVP / Mcguire, Thank you for your advice. I would like to have more information on the following :- (1) 'Spring temper' process applicable to C-276. (2) Permanent set of Hastelloy C276 springs (Please note that the operating temperature in this case is 250 degC continuous)...
  14. Pras

    Spring failure

    NOTE :- SAME POST IS REPEATED IN 'CORROSION ENGINEERING' Pras (Mechanical) Aug 9, 2002 Hi, We are facing failure problems of a springs made up of SS316L material ( 1.0 mm wire diamter, 6.3mm outer diamter, 9.5mm length)which are used in our special pipe fittings. The spring is exposed to the...
  15. Pras

    Spring Failure

    Hi, We are facing failure problems of a springs made up of SS316L material ( 1.0 mm wire diamter, 6.3mm outer diamter, 9.5mm length)which are used in our special pipe fittings. The spring is exposed to the fluid and supposed to work in 'compressed condition'. It is clear from our observations...
See more

Part and Inventory Search

Back
Top