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ASTM B381 Gr F5 and ASME SB Grade F2 Slip On Flange Dimensions / Weight Chart.

Because titanium is a transition metal, it is used to alloy several metals and is often a part of fighter aircraft as well as pipes in nuclear power stations. Despite being a transition element, there are several commercially pure grades such as Grade 2 Titanium Flanges that make it a prized element. Perhaps, it is the high strength to weight ratio that makes titanium well received amongst both Titanium Flanges Manufacturer in India and buyers across the world. Or it could be the fact that Titanium has great corrosion resistance properties.

Titanium Flanges

Titanium Flanges

ASTM B381 Gr F5 Blind Flange

ASTM B381 Gr F5 Blind Flange

ASME SB381 Grade F2 Slip On Flange

ASME SB381 Grade F2 Slip On Flange

The corrosion resistance properties of include UNS R56400 Socket weld flange marine environment, aqua regia, and chlorine solutions. However, most applications that require lightweight materials in their construction prefer the use of titanium and its alloys for e.g. ASTM B381 Ti Alloy Gr 5 Slip On Flange. Some situations call for a less dense material with tensile strength properties similar to that of stainless steel such as the UNS R50400 Weld Neck Flange.

The weight of a flange may cause discomfort not only to the application but also to the worker operating it. As a Grade 5 Titanium Blind Flange is used to clean, modify, and inspect a piping system, their use is a regular occurrence. Often heavier metals are difficult to use. Due to minor seepage of fluid or gases through the pipeline, they could also get corroded and get stuck. Unlike other materials, the corrosion resistance properties of ASTM B381 Grade F2 Long Weld Neck Flange, in combination with its low density make it an attractive metal for several applications.


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Check Titanium Flanges at Best Price in Mumbai also Grade 5 Titanium Blind Flange Price List and Buy Online UNS R50400 Weld Neck Flange.

ASTM B381 Gr F5 Flange Standard Weights


Standard Class Diameter of Bolt Circle Dia. Bolt Size No. of Bolts Bolt Hole Diameter
AS4087 PN14 67 95 M12 4 14
ANSI B16.5 ANSI 150 60 89 13 4 16
ANSI 300 67 95 13 4 16
ANSI 600 67 95 13 4 16
ANSI 900 83 121 19 4 22
ANSI 1500 83 121 19 4 22
AS 2129 Flange Table C 67 95 13 4 14
Table D 67 95 13 4 14
Table E 67 95 13 4 14
Table F 67 95 13 4 14
Table H 83 114 16 4 17
Table J 83 114 16 4 17
ISO 7005 (DIN) Flange PN6 55 80 M10 4 11
PN10 65 95 M12 4 14
PN16 65 95 M12 4 14
PN20 60.5 90 M14 4 16
PN25 65 95 M12 4 14
PN40 65 95 M12 4 14

Grade 5 Titanium Blind Flange Equivalent Grades


Grades UNS WERKSTOFF NR.
Titanium Gr 2 R50400 3.7035
Titanium Gr 5 R56400 3.7165

Widest Size range in class 150 ASTM B381 Long Weld Neck Flange and UNS R56400 Socket weld flange.


Spec Chart of UNS R50400 Weld Neck Flange


Specification ASTM B381/ ASME SB381
Size Ranges From 1/2 inch (i.e. 15 NB) upto 48 inch (i.e. 1200NB)
JIS Standards 5 K, 10K, 16K, 20 K, 30K, 40K, 63 K
Pressure Classes Class 150, Cl 300, 400, Cl. 600, Cl 900, Class 1500 and 2500
Flange Face Type FF, RF, LMF, SMF, RTJ, LJF.
Standards ASME | BS | DIN | ANSI | GOST | EN Flange
UNI/ DIN / EN Standard 6Bar, 10 Bar, 16Bar, 25 Bar, 40Bar

Most famous types of Titanium Flanges


ANSI B16.5 Grade 2 WN RF Welding Neck Titanium Flange
ANSI B16.5 Grade 2 WN RF Welding Neck Titanium Flange

8" 600LB titanium Steel forged welding neck flange
8" 600LB titanium Steel forged welding neck flange

ANSI B16.5 grade2 150# press class titanium blind flange
ANSI B16.5 grade2 150# press class titanium blind flange

Titanium Flange Welding Neck 1" Class 300
Titanium Flange Welding Neck 1" Class 300

Titanium Flange 8" 600LB Titanium Steel Forged Welding Neck Flange
Titanium Flange 8" 600LB Titanium Steel Forged Welding Neck Flange

1" 2" 3" ASME B16.5 Grade 2 titanium flange WNRF Class150
1" 2" 3" ASME B16.5 Grade 2 titanium flange WNRF Class150

ANSI B16.5 Class150 Forged flange Gr2 Titanium flange
ANSI B16.5 Class150 Forged flange Gr2 Titanium flange

DN10-DN600 ASTM16.5 Titanium Gr2 Welding Neck Flange
DN10-DN600 ASTM16.5 Titanium Gr2 Welding Neck Flange

Check titanium flange pressure-temperature rating and WERKSTOFF NR. 3.7165 Threaded Pipe Flanges Specifications according to ASME/ ANSI B16.5.

Titanium Grade 2 Flanges Mechanical Properties Tensile Strength


Grades Tensile Strength Melting Point Elongation Density Yield Strength (0.2%Offset)
Ti Gr 2 Psi – 49900 , MPa – 344 1665 °C (3030 °F) 20 % 4.5 g/cm3 Psi – 39900 , MPa – 275
Ti Grade 5 Psi – 138000 , MPa – 950 1632 °C (2970 °F) 14 % 4.43 g/cm3 Psi – 128000 , MPa – 880

Chemical Composition of WERKSTOFF NR. 3.7165 Threaded Pipe Flanges


Grade Fe Ti H C N Al O V
Titanium Grade 2 0.3 max 99.2 min 0.015 max 0.1 max 0.03 max – 0.25 max –
Ti Gr 5 0.25 max 90 min – – – 6 min 0.2 max 4 min

Buy ASTM B381 Grade F-3 RTJ Flange and DIN 3.7035 Flange from India's Largest supplier of Titanium Flanges and Forgings.

ASME SB381 Grade F2 Slip On Flange Working Temperature


Temperature °F Class 600 Class 150 Class 1500 Class 400 Class 300 Class 900 Class 2500
-20 to 100 1440 275 3600 960 720 2160 6000
200 1200 230 3000 800 600 1800 5000
300 1080 205 2700 720 540 1620 4500
400 995 190 2485 660 495 1490 4140
500 930 170 2330 620 465 1395 3880
600 875 140 2185 580 435 1310 3640
650 860 125 2150 575 430 1290 3580
700 850 110 2125 565 425 1275 3540
750 830 95 2075 555 415 1245 3460
800 805 80 2015 540 405 1210 3360
850 790 65 1980 530 395 1190 3300
900 780 50 1945 520 390 1165 3240
950 765 35 1910 510 380 1145 3180
1000 640 20 1605 430 320 965 2675
1050 615 20 1545 410 310 925 2570
1100 515 20 1285 345 255 770 2145
1150 400 20 995 265 200 595 1655
1200 310 20 770 205 155 465 1285
1250 225 20 565 150 115 340 945
1300 170 20 430 115 85 255 715
1350 125 20 310 80 60 185 515
1400 95 20 240 65 50 145 400
1450 70 15 170 45 35 105 285
1500 55 10 135 35 25 80 230