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What is the difference between a234 and sa234?
In technical terms, "A234" refers to the ASTM standard specification for piping fittings of wrought carbon and alloy steel. On the other hand, "SA234" stands for the ASME standard specification for the same type of piping fittings. The key difference lies in the organizations that have developed these standards - ASTM (American Society for Testing and Materials) and ASME (American Society of Mechanical Engineers), respectively. Both standards provide guidelines for the manufacturing and testing of piping fittings, with ASME typically being more stringent due to its focus on pressure vessel and boiler applications.
What is the difference between en8 and en24?
En8 is low carbon steel and it can be toughned. En24 is medium carbon steel and it is generally called forged steel.
What is the mechanical difference between a pre-64 Winchester model 1892 and a pre-64 Winchester model 1894?
Pre-64 Winchesters had many forged and hand-fitted parts while those made later are machine-stamped. If you haven't studied metal working enough to recognize the difference, 1964 production bagan with serial number 2586001.
What is the young's modulus of forged steel?
140Gpa
What is the pressure rating of schedule 40 black steel pipe?
Pipe ratings are the operating pressures that a pipe can be constantly operated at. There are a few classes of plumbing pressures. Schedule 40 black iron is 150 psi class, meaning that the "operating pressures" are 150 psi. The 300 psi class is the class for most schedule 80 black iron (no seam [welded]). Each class has it's own fittings at the same ratings. The fittings wont be listed as a schedule just a class or a psi rating. Other ratings can exceed 3000 psi for hydraulic actuated machinery applications. Again, these classes have there own set of 3000 class fittings which are usually forged instead of cast. The ratings include a safety factor of 2 and an extra surge allowance of 100 psi for very short term operation. The rating only goes to the yield strength of the pipe not the failure strength, know the difference. So the burst pressures someone else gave as the pressure rating (2700 +psi) is wrong unless the person asking this question was trying to make a "pipe bomb."
