Shop/Factory Cold Bend Specification for US.

[Hayms]

Hello,

ASME B31.8/4 has field cold bend information. ASME B16.49 has factory induction bend information. What ASME or US applicable specification has Factory Cold bend information?

Thank you.

 

[LittleInch]

What sort of radius are you looking at?

The hot bend spec is still valid, just don't heat the pipe.

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[Hayms]

30 to 40D Shop Cold bends.

 

[LittleInch]

Then just use B31 4 or 31.8.

The term "field" is immaterial.

I've never heard of "shop" cold bends at 30 to 40 D before. A cold bend is a cold bend irrespective of where it happens, in the field (usually); in factory (unusual) or in your kitchen (the plumber). Did that help?

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[Hayms]

Yes, it did help. Some clients I work with ask for a combination of shop and field cold bends, though I agree it's quite unusual.

 

[LittleInch]

I once had to get two 10D cold bends made (don't ask), and that involved ramming sand inside the pipe whilst bending it.

Now that was a factory cold bend.

It's the only one Ive done in 40 yrs of doing this sort of thing

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.