What is the correct way to display the material specifications? 1

[Cesar Almada]

Hello everyone i have a question about what is the correct form to show o mention the material specification?

I have these two materials, all in GRADE B and Sch 80.

Welding Straight Tee 12 '' x 12 "x 12" Thick 0.688 ’’ ASME B16.9 Carbon Steel ASTM-A105 Grade B
Welding reduction of 16 '' Ø Thickness 0.844 '' x 12 '' Ø Thickness 0.688 '' ASME B16.9 carbon steel ASTM-A105 Grade B
Welding reduction of 12 '' Ø Thickness 0.688 '' x 10 '' Ø Thickness 0.594 '' ASME B16.9 carbon steel ASTM-A105 Grade B
Welding reduction of 12 '' Ø Thickness 0.688 '' x 8 '' Ø Thickness 0.500 '' ASME B16.9 carbon steel ASTM-A105 Grade B
12 '' Ø 90 ° welding elbow 0.688 ’’ ASME B16.9 carbon steel ASTM-A105 Grade B
12 '' Ø 45 ° welding elbow 0.688 ’’ ASME B16.9 carbon steel ASTM-A105 Grade B
12 "Ø welding cap 0.688’ ’ASME B16.9 carbon steel ASTM-A105 Grade B
1-1 / 2 "Ø ASTM A106 Grade B Schedule XS ASME B36.10 Seamless Carbon Steel Pipe

My question is, if i need to put A239 or is correct A105 because i read here something like A239 is for butt weld and A105 is for threaded? to end i have weld neck flanges A105.

Thank you !! cheers

 

[david339933]

You should at least google the specs to get an idea...as 90% of what you have written is not correct.

 

[Cesar Almada]

A106 = This specification covers carbon steel pipe for high-temperature service.
A234 = This specification covers wrought carbon steel and alloy steel fittings of seamless and welded construction.
A105 = This specification covers standards for forged carbon steel piping components, that is, flanges, fittings, Valves, and similar parts, for use in pressure systems at ambient and higher-temperature service conditions.


@david339933 the question is because a guy told me, Please adapt the material specifications as indicated in the ASME sec. II and API 5L, if you can help me i'd appreciate a lot.

I did this:

Straight Tee 12 '' x 12 "x 12" Thick 0.688 ’’ ASME B16.9 Carbon Steel ASTM-A105 Grade B
reduction of 16 '' Ø Thickness 0.844 '' x 12 '' Ø Thickness 0.688 '' ASME B16.9 carbon steel ASTM-A234 Grade B
reduction of 12 '' Ø Thickness 0.688 '' x 10 '' Ø Thickness 0.594 '' ASME B16.9 carbon steel ASTM-A234 Grade B
reduction of 12 '' Ø Thickness 0.688 '' x 8 '' Ø Thickness 0.500 '' ASME B16.9 carbon steel ASTM-A234 Grade B
12 '' Ø 90 ° elbow 0.688 ’’ ASME B16.9 carbon steel ASTM-A234 Grade B
12 '' Ø 45 ° elbow 0.688 ’’ ASME B16.9 carbon steel ASTM-A234 Grade B
12 "Ø cap 0.688’ ’ASME B16.9 carbon steel ASTM-A234 Grade B
1-1 / 2 "Ø ASTM A106 Grade B Schedule XS ASME B36.10 Seamless Carbon Steel Pipe

 

[david339933]

That's much better. BW fittings are normally SA-234-WPB. Are you sure the 12" Tee is not SA-234-WPB? SA105 are normally forgings and rated 3000#, 6000# etc. .688" is 12" Sch 80 pipe thickness....rather than a forging.

Also, there is not grade b in SA105.

 

[Cesar Almada]

Oh yeah sorry @david339933 the Tee is A-234-wpb but i forgot delete it sorry and yes sch 80 is the same at 0.688 but those guys want to see number no something like sch 80 or sch 40 or sch xs i don't know why.

 

[david339933]

Also, ASME Sec. II only has SA- specs rather than A...such as SA-234-WPB. You are on the right track. You may want to include Long Radius or Short Radius for the Elbows description. Also, concentric vs eccentric reducers.

 

[Cesar Almada]

Yes i'll do that. Thank you so much for your help @David330033 !!

 

[EdStainless]

It depends on who is using them.
I would have written; SPEC, alloy, shape, size (and even if they want the dimensions you need to show the sch, since that is in the spec).
What is the actual size? 8 and 12 pipe are not 8" and 12" OD. 8NPTsch80 is a size, 8"x0.500" is not a pipe size.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, consulting work welcomed

 

[1503-44]

normal strength FITTINGS use ASTM A-234 WPB
normal strength FLANGES use ASTM A-105

On a proper material list or purchase order those would look like this,

TEE 12.75" OD, WE, 0.688" WT, ASME B16.9, CS ASTM-A105 B
REDUCER, 16" OD X 12.75" OD, WE, 0.844" WT, 12" X 0.688" WT, ASME B16.9, CS ASTM A-234 WPB
REDUCER, 12.75" OD X 10.75" OD, WE, 0.688" WT, 10" X 0.594" WT, ASME B16.9, CS ASTM A-234 WPB
REDUCER, 12.75" OD X 8.625" OD, WE, 0.688" WT, 8" X 0.500" WT, ASME B16.9, CS ASTM A-234 WPB
ELBOW, 12.75" OD, 90° LR, WE, 0.688" WT, ASME B16.9, CS ASTM A-234 WPB
ELBOW, 12.75" OD, 45° LR, WE, 0.688" WT, ASME B16.9, CS ASTM A-234 WPB
CAP, 12.75" OD, WE, 0.688" WT, ASME B16.9, ASTM A-234 WPB
PIPE, 1.5" OD X 0.109" WT, SMLS, SCH XS, ASME B36.10, CS ASTM A106-B, ENDS BEVELED 30°

FLANGE, 8.625" OD X 0.375" WT, RFWN, ASME B16.5, ASTM A-105

Write both the wall thickness and the schedule for pipe if available. Many times the pipe's weight/foot is added as well.
You can specify the length that pipe is to be supplied DRL = double random length (42'+/-), SRL = single random length (21'+/-).
P.S. ASTM AND SA SPECS ARE NOT ALWAYS THE SAME. IT CAN BE YEARS BETWEEN EDITIONS BEFORE SA COPIES ASTM EXACTLY. STICK WITH ASTM, UNLESS YOU KNOW YOU SPECIFICALLY WANT SA.

I didn't look up the wall thickness of 1.5" OD SCH XS. Probably wrong. I just wrote 0.109" to fill in the space.

 

[1503-44]

Examples of how to write material descriptions for many types of natural gas / petroleum type piping components.
Here's some old material lists for various projects I did a long time ago that I found on my hard disk. They are an old old version of word and some files might have only one item per page. sorry about that. Most seem to be OK.

 

[Cesar Almada]

Thank you so much to everyone, all of this have been helping for me.

 

[1503-44]

Just noticed that I forgot to write ANSI#600 after the "RFWN" in my flange example above.

 

[XL83NL]

ANSI together with the hashtag (to denote class rating) have been cancelled since decades. I knowing it’s common good or use that people still use them, even the new engineers, but if you start making a new spec, make it right the first time and use ASME B16.5 Cl. 600 instead.

Huub
- You never get what you expect, you only get what you inspect.

 

[1503-44]

I said it was old. So am I and fortunately I have not made or even looked at a material list or purchase order since I wrote those in 1983. But thanks for letting us know. It is important. Should there be other changes that you could suggest?

PS. I still like the # better.

 

[KevinNZ]

No one has mentioned metric specs

TEE EQ DN300 x 17.48mm SCH80
REDUCER CON DN400 X DN300 x 21.44 x 17.48mm SCH80

 

[1503-44]

You don't show actual OD when using metric?

 

[XL83NL]

Why a call out like

ELBOW, 12.75" OD, 45° LR, WE, 0.688" WT, ASME B16.9, CS ASTM A-234 WPB

when all those OD and wall thickness are contained in ASME B36.10 (or B36.19 if youre using that)?

ELBOW, ASME B16.9, 45° LR, NPS 12" SCH.80, ASME B36.10, ASTM A234 WPB

To my understanding, the latter is easier and more recognized. Dropout the dash between A and 234, it isnt there. Delete CS, as A234 already makes it CS.


Huub
- You never get what you expect, you only get what you inspect.

 

[Shofa]

KevinNZ

Why you specify thickness and SCH. Only one data is enough and it is preferred to the SCH

 

[1503-44]

Too late to change it. Built in 1983.

 

[XL83NL]

Why you specify thickness and SCH. Only one data is enough and it is preferred to the SCH

In general, yes, but it depends. Whenever you specify thickness by Sch.-denominator, -S suffix, or STD/XS/etc., indicate if B46.10 or B36.19 has been used (although it should be clear from the denominator). Sch may be preferred, but above 12" or 14", Sch and S arent the same. Hence the reason to reference ...10 or .19.

Too late to change it. Built in 1983.

A lot has changed in 35+ yrs, and a lot hasnt. Your advice is sound and good, but not up2date. I would mentor younger engineers that way. Let them read the codes, so they know how codes 'mark' or call-out items.

Huub
- You never get what you expect, you only get what you inspect.