Fittings and Markings-Steel and Monel
Fittings and Markings-Steel and Monel
(OP)
ASME B16.11 covers forged socket weld fittings for steel but what if the fittings are machined from round stock. Is there a separate standard for machined fittings and what is it? And would that standard cover only steel or can it beapplied to machined nickel fittings also.
Another question: some fittings I have a marked a105 for steel in reference to astm a105, but on the monel fittings are marked a400 for monel. Astm a400 does not seem to have any verbiage about nickels. I know the 400 can reference uns numbers and is meant for monel but why do the steel fittings refer to an ASTM number and the monel fittings refer to an UNS system?
Another question: some fittings I have a marked a105 for steel in reference to astm a105, but on the monel fittings are marked a400 for monel. Astm a400 does not seem to have any verbiage about nickels. I know the 400 can reference uns numbers and is meant for monel but why do the steel fittings refer to an ASTM number and the monel fittings refer to an UNS system?





RE: Fittings and Markings-Steel and Monel
RE: Fittings and Markings-Steel and Monel
For bars supplied, it is only ASTM B164.
Get a copy of B 164 and review it.
ASTM does have specific reference to nickel-base materials, you just need to know where to find them. Hint - ASTM B is for nonfarrous materials, ASTM A is for ferrous materials.
RE: Fittings and Markings-Steel and Monel
When begining with ASME B16.11, section 5.1 list A105 and B366 but does not list B164
I am just asking why use a bar stock standard for monel but not use the bar stock standard for my steel fittings. It seems it is comparing apples to oranges but both fittings are the same rating and size, but different material.
RE: Fittings and Markings-Steel and Monel
5.1 Standard Materials
Fittings shall be made of materials consisting of forgings,
bar, seamless pipe, or seamless tubular products.
These materials shall conform to the requirements for
the WP seamless construction materials of ASTM Fitting
Specifications A 234, A 403, A 420, A 815, or B 366 or
ASTM Forging Specifications A 105, A 182, A 350, B 462,
or B 564. Tees, elbows, and crosses shall not be made
from bar stock.
The 2001 Edition of B16.11 for materials simply referenced material in Table 1 of B16.34.
RE: Fittings and Markings-Steel and Monel
Check here for more details: ht
RE: Fittings and Markings-Steel and Monel
RE: Fittings and Markings-Steel and Monel