Question 1

Which fitting standard applies to Inconel 825 Fittings?

Accepted Answer

Stainless fittings often follow ASTM A403 / related project practice; duplex may cite A815; nickel-alloy buttweld fittings often cite ASTM B366 / ASME SB366 when named. State the governing designation with fitting type, NB × schedule and ends on the RFQ.

Question 2

Elbow, tee, reducer — do I order from this hub?

Accepted Answer

This hub owns the grade × fittings commercial intent. Use linked type pages when your RFQ is type-primary; otherwise list each fitting type and size here so continuity with the pipe designation stays clear.

Question 3

Can I mix stainless fittings onto a nickel-alloy line?

Accepted Answer

Not without written engineering acceptance. Fitting chemistry should match the line-class designation end to end on coded jobs.

Question 4

Is Inconel 825 the same as Incoloy 825?

Accepted Answer

Buyers often search “Inconel 825”. The correct family designation for UNS N08825 / Werkstoff 2.4858 is Incoloy / Alloy 825 (nickel-iron-chromium with Mo and Cu) — not Alloy 625. We keep the catalogue URL under Inconel for search continuity while stating Alloy 825 / N08825 on RFQs.