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Thank you gentlemen, I will bring these ideas up to engineering.

creeper, The Q & T 8630M forgings temper temperatures varys from 1150 F to 1200 F, they require a 85 ksi yield min. and CVN's as stated above; the A572 50 plates were supplied in the as rolled condition. 1125 F is the stress relieve temperature used on the weldment these two materials make...

Heres the situation, one of our weldments is designed using A572 50 (as rolled) plates welded to a 8630 Mod. forging. There are impacts required on the forging but not on the plates; the weldment is PWHT'ed after fabrication at about 1125 F for two hours. What engineering discovered after PWHT...

As anyone dealt with normalized A572 50, I was under the impression that it is only supplied in the as-rolled condition.

TVP, I had a feeling that ANSI 1026 had to derive from some standard, I asked the engineer to what standard did the 1026 come from, he didn't know. Unfortunatly the engineer who designed this rotary table is not with us any more.

The 1026 forging is used in a rotary table assembly for drilling, it is being welded to A36 and A516/70 plate; ASME IX is the code used. As far as ASTM A830 is concerned, that was incorrect. Where can I find chemical/mechanical information on standard 1026? I believe engineering is just...

I know this is an easy one for you gentleman; could ASTM A105 be used as a replacement for ANSI 1026. The 1026 material (normalized forging)is on an 18 week backlog, engineering wants to see if A105 would make a good replacement. The forging requires yield and CVN restrictions (nothing high)...

In ASME IX, QW-163, does that interpret as one single discontinuity exceeding 1/8", and not a collection of discontinuities (say five 1/16" discont.)exceeding 1/8". So in other words,the bend specimen can have many discontinuities as long as no single one exceeds 1/8".

Thanks weldtek....I'm still having some trouble fully understanding QW-407.2, it might have to do with my weakness with word problems (chuckle). Oh...should the math be 2/.8 = 2.5 hrs. (2.5 x .8 = 2)

weldtek, I'm sorry.......I just don't see the 20% more. Is it (ex. PQR 2" test plate(P1 G1) was stressed relieved at 1150 F for 2 hrs.; while production weld is actually 4" thick needing at least 2.5 hrs cook time[Sect.VIII div. 1 UCS-56], so would 2 hrs. be the "at least 80%" of the actual...

Weldtek, Can you explain where you located or how you came to the conclusion on "more is limited to 20% more"; for my future reference.

Gentleman, I had submmited a PQR & WPS to a 3rd party surveyor for review; these were in accordance with ASME IX. The PWHT time on the PQR is 2.5 hrs. at 1150 F, I had stated on the WPS that the minimum and maximum time at temperature allowed would be 2 to 2.5 hrs.(my interpertation of QW-407.2)...

IAL2002, I beleive the answer to your second question is yes & no...see ASME IX, QW-403.5...if this involves impacts.