Thickness of stainless steel flanges
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Does anyone know the thickness of 6-inch stainless steel loose-flange and stainless steel butt-weld flanges with PN0.6 rating? If possible, could you tell me the standard numbers? The standards of the manufacturer themselves are also fine; I just want to know the thickness. I saw that these flanges are made of galvanized carbon steel, and stainless steel is much stronger than galvanized carbon steel – so are their thicknesses the same? Thank you all; I’m in urgent need of this information. Please reply as soon as possible. Thanks. I’ve already found it; no need to reply anymore. http://bbs.hcbbs.com/viewthread.php?tid=143547 Last edited by zzg5680 on 2009-2-4 11:42
GB9119,2—88 GB9119,2—88 in Nominal diameter 10kg=1.0MPa Nominal diameter 16kg=1.6MPa Flange outer diameter Bolt hole pitch Bolt diameter Number of bolt holes Flange thickness Flange outer diameter Bolt hole pitch Bolt diameter Number of bolt holes Flange thickness 3/8 DN10 50 60 14 4 14 DN10 90 60 14 4 14 1/2 DN15 59 65 14 4 14 DN15 95 65 14 4 14 3/4 DN20 105 75 14 4 16 DN20 105 75 14 4 16 1 DN25 115 85 14 4 16 DN25 115 85 14 4 16 11/4 DN32 140 100 18 4 18 DN32 140 100 18 4 18 11/2 DN40 150 110 18 4 18 DN40 150 110 18 4 18 2 DN50 165 125 18 4 20 DN50 165 125 18 4 20 21/2 DN65 185 145 18 4 20 DN65 185 145 18 4 20 3 DN80 200 160 18 8 20 DN80 200 160 18 8 20 31/2 DN100 220 180 18 8 22 DN100 220 180 18 8 22 4 DN125 250 210 18 8 22 DN125 250 210 18 8 22 5 DN150 285 240 22 8 24 DN150 285 240 22 8 24 6 DN200 340 295 22 8 24 DN200 340 295 22 8 26 8 DN250 395 350 22 12 26 DN250 405 355 26 12 29 10 DN300 445 400 22 12 28 DN300 460 410 26 12 32 12 DN350 505 460 22 16 30 DN350 520 470 26 16 35 14 DN400 565 515 26 16 32 DN400 580 525 30 16 38 16 DN450 615 565 26 20 35 DN450 640 585 30 20 42 18 DN500 670 620 26 20 38 DN500 715 650 33 20 46 20 DN600 780 725 26 20 42 DN600 840 770 36 20 52 24 JIS standard JIS standard JIS standard in Nominal diameter 10kg=1.0MPa Nominal diameter 16kg=1.6MPa Nominal diameter 20kg=2.0MPa Flange outer diameter Bolt hole pitch Bolt diameter Number of bolt holes Flange thickness Flange outer diameter Bolt hole pitch Bolt diameter Number of bolt holes Flange thickness Flange outer diameter Bolt hole pitch Bolt diameter Number of bolt holes Flange thickness 3/8 DN10 DN10 DN10 1/2 DN15 DN15 DN15 3/4 DN20 DN20 DN20 1 DN25 DN25 DN25 11/4 DN32 DN32 DN32 11/2 DN40 140 105 19 4 16 DN40 140 105 19 4 16 DN40 140 105 19 4 18 2 DN50 155 120 19 4 16 DN50 155 120 19 8 16 DN50 155 120 19 8 18 21/2 DN65 175 140 19 4 18 DN65 175 140 19 8 18 DN65 175 140 19 8 20 3 DN80 185 150 19 8 18 DN80 200 160 22 8 20 DN80 200 160 23 8 22 31/2 DN90 195 160 19 8 18 DN90 210 170 22 8 20 DN90 210 170 23 8 24 4 DN100 210 175 19 8 18 DN100 225 185 22 8 22 DN100 225 185 23 8 24 5 DN125 250 210 23 8 20 DN125 270 225 25 8 22 DN125 270 225 25 8 26 6 DN150 280 240 23 8 22 DN150 305 260 25 12 24 DN150 305 260 25 12 28 8 DN200 330 290 23 12 22 DN200 350 305 25 12 26 DN200 350 305 25 12 30 10 DN250 400 355 25 12 24 DN250 430 380 29 12 28 DN250 430 380 29 12 34 12 DN300 445 400 25 16 24 DN300 480 430 29 16 30 DN300 480 430 29 16 36 14 DN350 490 445 25 16 26 DN350 540 480 32 16 34 DN350 540 480 33 16 40 16 DN400 560 510 27 16 28 DN400 605 540 35 16 38 DN400 605 540 33 16 46 18 DN450 DN450 DN450 20 DN500 DN500 DN500 24 DN600 DN600 DN600
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Please select in accordance with HG 20592~20635-97 \"Steel Pipe Flanges, Gaskets, and Fasteners\". When making the selection, pay attention to the relationship between pressure, temperature, and material! To view this standard, please go to: http://bbs.hcbbs.com/thread-6012-1-1.html. This post was last edited by chkh007 on 2008-10-24 at 14:45.]
Is the thickness the same for galvanized carbon steel and stainless steel? The standards only mention steel; it’s all steel, so isn’t there any difference? Shouldn’t stainless steel be thinner?
The original poster is really unfair to give only one star.
To this day, no one has given me a direct answer. When it comes to using stainless steel or carbon steel, is the thickness of the flanges the same? For the same PN0.6 rating, is the thickness of DIN100 flanges the same for stainless steel and carbon steel? What is the basis for this? That’s what I want to know. Has anyone answered me directly? I don’t think so. I’ve checked all the standards mentioned above, and they all refer to steel. Could it be that two different types of steel, with different properties, have the same thickness? By the way, the engineer who works at my desk, Haichuan, has been here for a year now; he’s already received red envelopes worth 199. I’ll give 1 point to anyone who can help me, and I’ll give more if they truly solve my problem. Don’t worry about that. I’ll make sure he also gives points to that person. Last edited by adamsong on 2008-10-28 11:49
The poster can refer to the standard HG20604-97 \"Pressure and Temperature Classes for Steel Pipe Flanges\" to determine the required pressure class for the flange. Flanges made of carbon steel and stainless steel with the same pressure class have the same thickness, and flange manufacturers produce them in accordance with these standards; the dimensions of carbon steel and stainless steel flanges are exactly the same； When carbon steel is used or stainless steel is used, the pressure rating is not necessarily the same
When selecting pressure vessel flanges, if the thicknesses of stainless steel and carbon steel differ, standard flanges can be used for carbon steel, while flanges for stainless steel require calculation (which can be done using SW6). Last edited by Xuehua on 2008-10-28 15:54
Could you be more specific? Please send me the calculation formula.