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boilertrainee
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Join Date: Mar 2011
Posts: 41

Boiler Drum Material

04/12/2011 3:00 AM

Hi all, i would like to have your Valuable advice on the below mentioned matter.

The suitability of service of SA516-Gr.70 material over A387 steel grades for steam drum and water drum. (steam conditions @ 12.5BarA_ saturated, 65T/Hr)

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Anonymous Poster #1
#1

Re: Boiler Drum material

04/12/2011 5:54 AM

SA516 - Carbon steel for low/moderate temperature service. (If I remember, the temperature range is upto about 650 deg F (350 deg C)

A387- Cr Mo Steel - Creep resistance - the temperature range is considerable higher depending on class may go upto 1200 def F (650 deg C)

What is your service temperature will decide whether you are permitted to go for 516 or not (Finally the ASME code will win)
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Lancoz
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Join Date: Jul 2010
Location: Witbank South Africa
Posts: 44
Good Answers: 2
#2

Re: Boiler Drum Material

04/13/2011 3:17 AM

Check the code applicable in your country it will give you all the information you need

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Kwetz
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Spain - Member - New Member Engineering Fields - Nuclear Engineering - New Member

Join Date: Oct 2007
Location: Madrid, Spain
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#3

Re: Boiler Drum Material

04/13/2011 4:56 AM

Hi,

If you have 12.5 barA pressure and saturated steam, the temperature must be around 190ºC (374 F), so SA516 Gr 70 is enough for that conditions.

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Tornado
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Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Richland, WA, USA
Posts: 21017
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#4

Re: Boiler Drum Material

04/13/2011 6:18 AM

SA516-70 should be able to handle this moderate temperature. SA515 can handle even higher temperature. I think SA387 has chromium (?) in it, which would add to corrosion resistance.

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Abdel Halim Galala
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Engineering Fields - Piping Design Engineering - New Member Egypt - Member - Member since 02/18/2007

Join Date: Feb 2007
Location: Cairo, Egypt
Posts: 1733
Good Answers: 248
#5

Re: Boiler Drum Material

04/14/2011 5:55 AM

At our oil refinery, we used to use:

• ASME SA 516 Grade 70 is a carbon steel plates for moderate and lower temp. service, preferred in fabrication of pressure vessels in steam generation plants, and

• ASME SA 515 Grade 70 is a carbon-silicon steel plates for intermediate and higher temp. service, preferred in fabrication pressure vessels, and

• ASME SA 387 Grade 11 (1.25 Cr & 0.5 Mol) and Grade 22 (2.5 Cr & 1 Mol) is alloy steel plates, chromium-molybdenum, preferred in fabrication of pressure vessels used in storing and handling of hydrogen.

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boilertrainee
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Join Date: Mar 2011
Posts: 41
#6
In reply to #5

Re: Boiler Drum Material

04/18/2011 2:26 AM

Thank you very much Sir, Spot on answer.

This is exactly what i was after.

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Abdel Halim Galala (1); Anonymous Poster (1); boilertrainee (1); Kwetz (1); Lancoz (1); Tornado (1)

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