Why is the allowable stress for 35CrMoA in ASME so low?
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For M52–M80, according to GB150, the value is 254 at room temperature and 227 at temperatures below 100 degrees (page GB150.64). Why is the allowable stress for 35CrMoA in ASME so low?
The allowable stress for 35CrMoA (or equivalent materials) in ASME standards may be lower than the values specified in GB150 standards, as ASME adopts more conservative design methods and safety factors when formulating these standards to ensure the safety of materials and equipment during operation. The standards for different organizations may vary in allowable stress due to differing considerations such as the intended environment of use, design life, safety factors, etc. .
It’s the difference in the values of the safety factor. Are its actual yield strength and tensile strength values similar to those specified by the American standards and national standards? Where can I find the specific numerical values according to the American standards?
The safety factor specified by ASME is much higher than that in GB150, yet their manufacturing requirements are much lower; these aspects complement each other. After all, the materials used there are cheaper while labor costs are high, which is in line with local conditions.
Boss, where can I find the yield and tensile strength values for this material in US standards?
ASME II-D -2023, the new version; the old version of the standard is unlikely to change