How to resolve the conflict between the requirements for carbon content in A105 material and those specified in GB20801 for welded carbon steel?
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I would like to seek advice from experts: in design, if A105 is chosen as the material for the flange, this conflicts with clause 6.4 of GB/T20801.2, which states that a) for carbon steel and chromomolybdenum alloy steel used in welding, the carbon content should not exceed 0.30%. According to ASTM A105/A105M, the carbon content in A105 is ≤0.35%. Using A105 exceeds the specification requirements. How do you address this issue in your designs?
ASME and GB are two different systems; ASME materials should comply with ASME B31.3 and cannot be used in conjunction with GB/T20801.2； If we must use it, then A105 can be used if both the supervisor and the owner agree ； The worst option is to have A105 customized, with a carbon content of no more than 0.30% being sufficient; it’s just a bit more expensive, but still within acceptable limits
ASME and GB are two different systems; ASME materials should comply with ASME B31.3 and cannot be used in conjunction with GB/T20801.2； If we must use it, then A105 can be used if both the supervisor and the owner agree ； The worst option is to have A105 customized, with a carbon content of no more than 0.30% being sufficient; it’s just a bit more expensive, but still within acceptable limits
ASME and GB are two different systems; ASME materials should comply with ASME B31.3 and cannot be used in conjunction with GB/T20801.2； If we must use it, then A105 can be used if both the supervisor and the owner agree ； The worst option is to have A105 customized, with a carbon content of no more than 0.30% being sufficient; it’s just a bit more expensive, but still within acceptable limits
Under normal circumstances, the standard A105 is sufficient, unless the project and the client have special requirements