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BS 1501 151 28A

BS 1501 151 28A

BS 1501 151 28A

(OP)
I have an old vessel that needs to be recertifed to PD5500. The original material of construction is BS 1501-151 Gr28A. I cannot find any references to this material on the net. Is the current equivalent BS 1501-151 Gr 430A??

Bart Bartholomew
Pr. Eng (mech)
Nautilus Engineers

RE: BS 1501 151 28A

That is correct. 28 tons/in^2 or 430 MPa, same material.

RE: BS 1501 151 28A

I just noticed you're from SA. That 28A material (commonly called boiler plate) was used extensively in the 70's and the ASME stress equivalent used was SA285-C. If your changing from ASME to PD5500 there is a significant allowable stress increase in the lower temp range.

RE: BS 1501 151 28A

Bartholomew69, codeeng,

For clarity, BS 1501 has been replaced by BS EN 10028-7:2000 so no the current equivalent is not BS 1501-151 Gr 430A. It was the equivalent but the latest BS EN 10028 materials have replaced BS 1501-151 Gr 430A.

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