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Hi, I'm looking for the CHT 400 (often associated with HARDOX 400). Though, I really want to know from which standard/code/etc., this material name come from. Thanks

Thanks, I also got the Mittal Pressure Vessel Brochure thanks to another posting on this site. I find the Larson-Miller Parameter and the mechanical properties (tensile and CVN) relations very interesting.

Hi; I want to get many (up to three) PWHT (1 hour stress relief at 1150°F or per ASME Sect.8 div.1 - UCS-56) on a pressure vessel shell (SA-516-70N) without deterioration of the mechanical properties below a specified limit. -Is there a variable (chemical composition, metal structure...

Ok; I can simplify my problem by using the thermal expansion coefficient. For further evaluation I want to represent the linear (and later the volumetric) dimensional change of an element during the different change of phase and structure (for a chosen steel chemistry): - Does the density...

Thanks a lot Stan; is it possible to get the reference of this graph, I would like to get a closer look to these results. Regards

Hi; I need to get a "density as a function of temperature" chart or equation from room T (70 F) to melting point (2500 F), if it exists. I'm not looking for a particular classification of steel yet, because I first want to get something representative of a welding situation (weldable material...

The contract document state as little as written above but I realized that my main issue regarding the responsibilities is in CSA B51-03 Standard; my mistake. Thank you for your intervention.

Hi, I have to weld (fabrication) a pressure piping per ASME B31.3. I work in Quebec, Canada and the product will be installed in Saskatchewan, Canada. After welding the client ask to do the spot radiography inspection and hydro test on its own. What is my the responsability regarding the code...

metengr; I looked to the ASME SA-20 and I also looked to another reference I got, the latest edition of the Gooderham Centre section 8, which says that Si and Al are used as de-oxidizing elements. Do the Al become a de-oxidizing element when added to steel with Si? Finally, the silicon do...

Hi, I'm looking for 1-1/2" thick steel plate per ASME SA-516 gr. 70 Aluminium killed. What should be the weight % of Aluminium so the steel to be considered as Aluminium killed? Can I get some references (web site, journal, article or book) to learn about the steel's Aluminium killing process...

Hi, what is the maximum permissible gap in a buttweld for plates 1/4" thick without backing? Where can I find it in the ASME code? Thanks, Vincent