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: smslab
  • Content: Threads
  • Order by date
  1. smslab

    H13 equalized too long

    What are the consequences of equalizing H13 too long when ramping up to the austenitizing temperature? Standard procedure is to heat to 700 C, equalize for 15 min, then up to 850 C, equalize for 15 min, and then ramp up to the austenitizing temperature of 1030 C. Thanks to some problems with the...
  2. smslab

    Carbon and hardness in 400 series stainless

    Does anyone know of a diagram showing the effect of carbon content in martensitic stainless steels with approx 12 % Cr? Ideally I'd like to find diagrams for a series of tempering temperatures but at this point I'd be delighted to find anything. In case anyone is interested, the background...
  3. smslab

    Specifying properties of 4140 castings?

    I'm looking for advice from someone who has experience with 4140 castings or similar. The intent is to produce a cylindrical part whose largest diameter is 3.5 " Service temperatures are anticipated to range from -30 F to 100 F. Desired yield strength is 60-70 ksi, desired impact energy is 65...
  4. smslab

    Zinc in Brass / Bronze

    Does anyone know the origin and use of the Guillet Zinc equivalent factor? I am dealing with a dezincification issue and both the Zn-content and whether the alloy is alpha or alpha + beta are relevant. I have the impression that it is only applicable to the high tensile brasses, but do not...
  5. smslab

    Wear and Stainless Steel

    I would be grateful if anyone could contribute from his/her experience to the following. We have a wear problem.....using 304 stainless steel sheet, we have a part that slides back and forth on it, and small rock dust particles get in between the urethane block and the 304. There are crosswise...

Part and Inventory Search

Back
Top