Titanium GR.2 Flanges

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Grade 2 titanium sits at 99%+ purity, and that purity is what drives its performance in piping systems that carbon steel and stainless grades cannot survive. It weighs roughly 45% less than carbon steel while holding its mechanical strength across a broad temperature range. Chlorides, oxidizing acids, and seawater cause no surface breakdown. Metracore Alloys manufactures Titanium GR.2 Flanges to ASTM B381 / ASME SB381 at our Mumbai facility, with each piece cleared for dimensional, mechanical, and chemical conformance before it leaves the shop floor.

Quality Testing & Inspection

Metracore puts every batch of Titanium GR.2 Flanges through a fixed inspection sequence. Documentation for each test travels with the order, giving buyers a complete traceability record from mill heat to dispatch.

  • Hydro Testing: Each flange gets pressurized to 1.5x its rated working pressure; any leakage path fails the piece immediately.
  • Dimensional Inspection: Bore, OD, bolt circle diameter and face finish are inspected per ASME B16.5 / B16.47 drawings before release.
  • PMI Testing: A handheld XRF gun reads the alloy chemistry right on the spot, verifying Grade 2 and catching any heat mix ups.
  • Radiography: RT or UT examines the internal structure for voids, cracks or discontinuities in the weld that cannot be reached by visual checks.
  • MTC Documentation: The Mill Test Certificate records heat number, chemical composition, and mechanical test results for every piece in the lot.
  • NABL-Approved Testing: Buyers who need third-party sign-off can request independent mechanical and chemical analysis at an NABL-accredited lab.

Why Choose Metracore for Titanium GR.2 Flanges?

Stock across common sizes ships fast. Custom dimensions outside standard schedules run through our Mumbai facility without the long lead times that most import-dependent suppliers quote. Export orders go out with MTCs, third-party test reports, and destination-specific certificates already packaged. Our technical team reads your drawings before production starts, so grade mismatches and dimensional errors get caught before they become site problems. Buyers across oil and gas, desalination, and pharmaceutical projects in India and abroad keep coming back because the material, paperwork, and delivery all arrive together. Share your size and quantity, and we will turn a quotation around quickly.
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Table of Content

Titanium GR.2 Flanges Specification

Standard

Standard

ASTM B381 / ASME SB381

Dimensions

Dimensions

ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.

Size

Sizes in Stock

1 / 2” to 18"

Process

Flanges Process

Forging, Rolling, Casting

Types

Types of Flanges

Threaded / Screwed / Forged / Plate

Class / Process

Class / Pressure

150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.

Face Type

Flange Face Type

Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Flange Thread

Flange Thread

FNPT, NPT, BSPT, MNPT, BSPP

Types of Titanium GR.2 Flanges

Nickel Alloy Slip On Flanges

Titanium GR.2
Slip On Flanges

Slides over the pipe end and welds at both faces; suited for low-pressure, non-critical service lines.

Socket Weld Flanges

Titanium GR.2 Socket Weld Flanges

The tapered hub gradually transfers stress into the pipe wall, making it the standard pick for high-pressure runs.

Blind Flanges

Titanium GR.2 Blind Flanges

Closes off pipe ends or vessel openings where the line may need reopening down the road.

Weld Neck Flanges

Titanium GR.2 Weld Neck Flanges

Threaded / Screwed Flanges

Titanium GR.2 Threaded / Screwed Flanges

Screws directly onto threaded pipe with no welding required, used in low-pressure, easily accessible locations.

Lap Joint Flanges

Titanium GR.2 Lap Joint Flanges

The free-rotating face pairs with a stub end, letting installers spin for bolt-hole alignment without cutting the pipe.

Long Weld Neck Flange

Titanium GR.2 Long Weld Neck Flanges

Functions as an integral nozzle on pressure vessels and heat exchangers where a standard neck falls short.

Spectacle Blind Flanges

Titanium GR.2 Spectacle Blind Flanges

One component fully isolated and open flow in alternates, perfect for maintenance shutdowns.

Reducing Flanges

Titanium GR.2 Reducing Flanges

Steps down between two pipe diameters at a single bolted joint, removing the need for a separate reducer fitting.

Titanium GR.2 Flanges Face Forms

Raised Face

Raised Face (RF)

Ring Type Joint

Ring Type Joint (RTJ)

Flat Face

Flat Face (FF)

Lap-Joint Face

Lap-Joint Face (LJF)

Reach out to Metracore Alloys for reliable Titanium GR.2 Flanges solutions

Call : +91 91675 64557
Mail : sales@metracorealloys.com

Technical Details of Titanium GR.2 Flanges

Titanium GR.2 Flanges Equivalent Grades

STANDARD WERKSTOFF NR. UNS
Titanium Gr. 2 3.7035 R50400
Grade Ti C Fe H N O Al V
Ti Grade2 99.2 min 0.1 max 0.3 max 0.015 max 0.03 max 0.25 max – –
Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
Titanium Gr. 2 4.5 g/cm3 1665 °C (3030 °F) Psi – 49900 , MPa – 344 Psi – 39900 , MPa – 275 20 %
Nominal Size Outside Diameter
(OD) 		Min. Thickness
(T) 		RF Dia.
(R) 		No. of Bolt Holes Diameter of Holes Bolt Circle
(BC) 		SO Bore ID
(SB) 		WN Bore ID
(WB) 		Dia. Hub Base
(HB) 		Dia. of Hub Top
(HT) 		SO LTH
(SL) 		WN LTH
(WL)
1⁄2 3.50 0.38 1.38 4 0.62 2.38 0.88 0.62 1.19 0.84 0.56 1.81
3⁄4 3.88 0.44 1.69 4 0.62 2.75 1.09 0.82 1.50 1.05 0.56 2.00
1 4.25 0.50 2.00 4 0.62 3.12 1.36 1.05 1.94 1.32 0.62 2.12
11⁄4 4.62 0.56 2.50 4 0.62 3.50 1.70 1.38 2.31 1.66 0.75 2.19
11⁄2 5.00 0.62 2.88 4 0.62 3.88 1.95 1.61 2.56 1.90 0.81 2.38
2 6.00 0.69 3.62 4 0.75 4.75 2.44 2.07 3.06 2.38 0.94 2.44
21⁄2 7.00 0.81 4.12 4 0.75 5.50 2.94 2.47 3.56 2.88 1.06 2.69
3 7.50 0.88 5.00 4 0.75 6.00 3.57 3.07 4.25 3.50 1.12 2.69
31⁄2 8.50 0.88 5.50 8 0.75 7.00 4.07 3.55 4.81 4.00 1.19 2.75
4 9.00 0.88 6.19 8 0.75 7.50 4.57 4.03 5.31 4.50 1.25 2.94
5 10.00 0.88 7.31 8 0.88 8.50 5.66 5.05 6.44 5.56 1.38 3.44
6 11.00 0.94 8.50 8 0.88 9.50 6.72 6.07 7.56 6.63 1.50 3.44
8 13.50 1.06 10.62 8 0.88 11.75 8.72 7.98 9.69 8.63 1.69 3.94
10 16.00 1.12 12.75 12 1.00 14.25 10.88 10.02 12.00 10.75 1.88 3.94
12 19.00 1.19 15.00 12 1.00 17.00 12.88 12.00 14.38 12.75 2.12 4.44
14 21.00 1.31 16.25 12 1.12 18.75 14.14 13.25 15.75 14.00 2.19 4.94
16 23.50 1.38 18.50 16 1.12 21.25 16.16 15.25 18.00 16.00 2.44 4.94
18 25.00 1.50 21.00 16 1.25 22.75 18.18 17.25 19.88 18.00 2.62 5.44
20 27.50 1.62 23.00 20 1.25 25.00 20.20 19.25 22.00 20.00 2.81 5.62
22 29.50 1.75 25.25 20 1.38 27.25 22.22 21.25 24.25 22.00 3.07 5.82
24 32.00 1.81 27.25 20 1.38 29.50 24.25 23.25 26.12 24.00 3.19 5.94
ASME Super Duplex Flanges Pressure Rating
Temperature °F Class 150 Class 300 Class 400 Class 600 Class 900 Class 1500 Class 2500
-20 to 100 275 720 960 1440 2160 3600 6000
200 230 600 800 1200 1800 3000 5000
300 205 540 720 1080 1620 2700 4500
400 190 495 660 995 1490 2485 4140
500 170 465 620 930 1395 2330 3880
600 140 435 580 875 1310 2185 3640
650 125 430 575 860 1290 2150 3580
700 110 425 565 850 1275 2125 3540
750 95 415 555 830 1245 2075 3460
800 80 405 540 805 1210 2015 3360
850 65 395 530 790 1190 1980 3300
900 50 390 520 780 1165 1945 3240
950 35 380 510 765 1145 1910 3180
1000 20 320 430 640 965 1605 2675
1050 20 310 410 615 925 1545 2570
1100 20 255 345 515 770 1285 2145
1150 20 200 265 400 595 995 1655
1200 20 155 205 310 465 770 1285
1250 20 115 150 225 340 565 945
1300 20 85 115 170 255 430 715
1350 20 60 80 125 185 310 515
1400 20 50 65 95 145 240 400
1450 15 35 45 70 105 170 285
1500 10 25 35 55 80 135 230
ASMESuper Duplex Flanges Pressure Rating
Temperature °FClass 150Class 300Class 400Class 600Class 900Class 1500Class 2500
-20 to 1002757209601440216036006000
2002306008001200180030005000
3002055407201080162027004500
400190495660995149024854140
500170465620930139523303880
600140435580875131021853640
650125430575860129021503580
700110425565850127521253540
75095415555830124520753460
80080405540805121020153360
85065395530790119019803300
90050390520780116519453240
95035380510765114519103180
10002032043064096516052675
10502031041061592515452570
11002025534551577012852145
1150202002654005959951655
1200201552053104657701285
125020115150225340565945
13002085115170255430715
1350206080125185310515
140020506595145240400
145015354570105170285
15001025355580135230

Titanium GR.2 Flanges Application

Corrosive process media, seawater exposure and stringent purity requirements drive engineers to Titanium GR.2 Flanges in the below industries.
Aerospace
Chemical Industry
Nuclear Industries
Offshore Industry
Oil and Gas Pipeline
Pharmaceutical Plants
Refineries
Ship Building
Water Supply Systems
The reason titanium outperforms in these environments comes down to one mechanism: a self-healing oxide film that reforms within milliseconds whenever the surface gets scratched. Stainless steel relies on a similar film, but chloride ions break it down permanently. Grade 2 titanium’s film holds.

Manufacturing Process of Titanium GR.2 Flanges

Flanges Manufacturing Process

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