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TVP, I cannot have a complete penetration weld as the internals will be pre-honed before welding and cannot be accessed with general manufacturing practises,

I cannot have a penetration weld as the inside face nees to be flush and a penetration weld will have a notch on the ID. I am performing a hardness test on the weld after sectioning it. I am also conducting a tensile load test to 32K lbf. I will refer to the asme code for qualifying the weld...

Sorry the Axial Load of the 1.4mm tube is 32K lbf

Hi All, I have two 1.8"OD Tube with a Wall of 1.4mm made of 17-4PH 105K Yield and I will be electron welding them together to a depth of 1mm. The Axial load of the 1.4mm tube is approx 345K lbf. I need to determine the axial strength of the 1mm weld sections. I could take the weld as the wall...

Hi, I am using carbon steel S335J2H for manufacturing a oil tank and table. As the oil will be at a temperature of 200 degree C, i am trying to find if this steel can be used. if so what is the temperature derating factor. MChel80

Hi BigInch, I have been using NPT threads for a while and the NPT Connections have always come with some pressure rating. I have the below link with the pressure rating for the NPT threads. This goes upto 1" only. http://www.sealexcel.com/tube-fittings.html MChel

Hi, I am trying to find the pressure rating of 1.5" NPT Threads. I have been looking at the net and I was able to find the rating for threads smaller than 1". I am using the 1.5" NPT at a temperature of 200 degree C. Can you assist me with finding the pressure rating and the derating factor for...

Thanks for the input guys. Looks like there is no guideline for GD and T. I will have to work closely with manufacturer to find practical solution. Drawoh - I will inspect the parts using CMM. V-Blocks and clocks set accordingly in a granite table will enable measurement.

Hi, I have been trying to find a standard or a reference document that provides the possible limits of GD & T based on machining and material. For example if i have to manufacture a 1 square meter plate made of 316SS I would stipulate a flatness tolerence of 0.05mm on the surface. But for a...

Hi, Can i ask you how does vibration behave in a linear machinery. The description of the linear machinery I am refering to is a cam wheel which runs a piston over a 1 meter stroke. My concern was I need to know the point at which there is going to be maximum vibration. I believe there will be...