Is heat treating of 17-7ph required
Is heat treating of 17-7ph required
(OP)
Application: Have a 17-7ph stamped bracket supplied in condtion "A" in accordance with AMS5528. Its final finish will be CAD plated TYPE II, class 2 per AMS-QQ-P-416. Bracket requires identification stamping on the flat portion. Q.?: IS HEAT TREATMENT prudent other than the ANNEALED condition -i.e.
TH 1050 or RH950? AND should the marking be done between prior to or after plating?
TH 1050 or RH950? AND should the marking be done between prior to or after plating?





RE: Is heat treating of 17-7ph required
While not as bad as 17-4 the annealed properties hare highly variable and unreliable.
I would stamp prior to heat treating. That should reduce concerns about local stresses.
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Plymouth Tube
RE: Is heat treating of 17-7ph required
RE: Is heat treating of 17-7ph required
Anyone have a suggestion of which heat treat? TH 1050 or RH950.
(Or other?)
None was specified by customers' requirement (unless there is a default embedded in AMS 5528 specification - which we currently do not have.)
RE: Is heat treating of 17-7ph required
RE: Is heat treating of 17-7ph required
RH950 is much stronger (and harder) but with little toughness.
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Plymouth Tube
RE: Is heat treating of 17-7ph required
RE: Is heat treating of 17-7ph required
Only the requirements that it be 17-7pH AND that it be cad plated.
I believe I'll go with the the TH 1050.
Thanks to all for your assistance.