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  • Users: RLJ
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  1. RLJ

    Metric Beam Engineering Data

    I am currently working a project that requires the use of metric sized beams. Parker Steel International provided data for general sizing and drafting. What I need now is firm engineering data; section modulus, moments of inertia, etcetera. The particular beams that I am currently interseted...
  2. RLJ

    Protection of CI in molten aluminum

    I am looking for a material coating which can be applied to cast iron that will protect the cast iron when submerged into a molten aluminum bath. The coating would have to withstand 1400F temperatures, moderate abrasion, and expand similar to the cast iron. I would prefer to keep the coating...
  3. RLJ

    8620 to 11 - 14 Hatfield comparison

    I am reviewing the manufacturing process of a cone shaped piece currently made of 8620 material. The material is cut flat and rolled into the cone shape, cold working the 8620. @28" large diameter, 16" small diameter. Then a mild steel mounting ring and base are welded to it. The...
  4. RLJ

    Explanation of BU-AC ralating to evaporation

    I am reviewing a MSDS of a product that shows the evaporation rate as: {Evaporation rate (BU-AC=1) = 0.03} This is similar to vapor density using air as 1. However, I do not know what BU-AC is or its evaporation rate. Can anyone explain this? Thanks in advance, RLJ s-)
  5. RLJ

    Steel Thermal Expansion Calculators on Web

    Are there any good down loadable spread sheets for determining proper OD expansion of a round steel tube when heated to several hundred degrees F. Thanks RLJ s-)
  6. RLJ

    Integrity of Riveted Crane Bridge.

    We have an electric overhead crane that was manufactured in 1892 using riveted girder construction. The maufacturer has recommended that it be taken out of service. I assume their reasoning is that the bridge has reached its fatigue cycle limits. In addition, we are aware that the steel will...
  7. RLJ

    Integrity of riveted overhead crane bridge.

    We have a 60 Ton electric overhead crane in our facility that was manufactured in 1892. The bridge is riveted construction and has a 60'-0" span. The manufacturer has advised that we remove it from service, without any physical inspection, I assume simply because of its age and the...
  8. RLJ

    Demolition & removal of large Cast Iron Frame

    We are looking into methods to dismantle a cast-iron frame for a large planer. The Frame consists mainly of (2) two columns, each approximately 22" wide X 142" deep X 25'-0" high with 2" wall thickness with internal support webbing. There is very little perimeter room and...

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