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Titanium Grade 5 Flanges Manufacturer and Supplier in India

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Titanium Grade 5 Flanges
Titanium Grade 5 Flanges are strong piping elements and are manufactured using the Ti-6Al-4V material, or ASTM B381 Grade F-5 or UNS R56400. These flanges are characterized by their minimum tensile strength of 895 MPa and density of approximately 4.43 g/cm3. This material comes with high strength and corrosion resistance to harsh conditions. They are highly applied in aerospace, marine, offshore oil & gas, chemical processing and desalination fields. Sachin Steel Centre is a reputed Titanium Grade 5 Flanges Manufacturer & Supplier in India, supplying certified T5 Flanges which have material traceability and quality documentation.
Table Of Content

Technical Data

Specifications of Titanium Grade 5 Flanges

Parameter

Specification Details

Material Grade

Titanium Grade 5 / Ti-6Al-4V

Material Standard

ASTM B381 / ASME SB381 (Grade F-5)

Dimensional Standards

ASME B16.5 (½″ to 24″), MSS SP-44 (26″ and larger), ASME B16.47 Series A & B

Unified Numbering System

UNS R56400

Werkstoff Number

3.7165

Pressure Ratings

Class 150#, Class 300#, Class 600#, Class 900#, Class 1500#

Flange Face Types

Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ), Male & Female (M&F), Tongue & Groove (T&G)

Manufacturing Technique

Hot Forging, Precision CNC Machining, Heat Treated (Annealed)

Certification

EN 10204 3.1 / 3.2, NACE MR0175 / MR0103, ISO 9001:2015 Certified

Chemical Compositions of Titanium Grade 5 Flanges

Grade

H

Ti

Fe

N

C

O

Al (Primary)

V (Primary)

Titanium Grade 5 Flanges

0.015% max

Balance

0.40% max

0.05% max

0.10% max

0.25% max

5.50 – 6.75%

3.50 – 4.50%

Alloy Grade 5 Titanium Lap Joint Flange Mechanical Properties

Grade

Density

Melting Point

Yield Strength (0.2% Offset)

Tensile Strength

Elongation

Titanium Grade 5 Flanges

4.43 g/cm³

1632 °C (2970 °F)

128,000 Psi / 880 MPa

138,000 Psi / 950 MPa

14%

Equivalent Grades of Titanium Grade 5 Flanges

Standard

UNS Designation

Werkstoff Nr.

Titanium Gr. 5

R56400 (Correct) / N56400 (Common Typo)

3.7165

UNS N56400 Socket Titanium Gr 5 Weld Flanges Pressure Rating

Operating Temperature (°F)

Class 150

Class 300

Class 400

Class 600

Class 900

Class 1500

Class 2500

-20 to 100 °F

275 psi

720 psi

960 psi

1,440 psi

2,160 psi

3,600 psi

6,000 psi

200 °F

230 psi

600 psi

800 psi

1,200 psi

1,800 psi

3,000 psi

5,000 psi

300 °F

205 psi

540 psi

720 psi

1,080 psi

1,620 psi

2,700 psi

4,500 psi

400 °F

190 psi

495 psi

660 psi

995 psi

1,490 psi

2,485 psi

4,140 psi

500 °F

170 psi

465 psi

620 psi

930 psi

1,395 psi

2,330 psi

3,880 psi

600 °F

140 psi

435 psi

580 psi

875 psi

1,310 psi

2,185 psi

3,640 psi

650 °F

125 psi

430 psi

575 psi

860 psi

1,290 psi

2,150 psi

3,580 psi

700 °F

110 psi

425 psi

565 psi

850 psi

1,275 psi

2,125 psi

3,540 psi

750 °F

95 psi

415 psi

555 psi

830 psi

1,245 psi

2,075 psi

3,460 psi

800 °F

80 psi

405 psi

540 psi

805 psi

1,210 psi

2,015 psi

3,360 psi

850 °F

65 psi

395 psi

530 psi

790 psi

1,190 psi

1,980 psi

3,300 psi

900 °F

50 psi

390 psi

520 psi

780 psi

1,165 psi

1,945 psi

3,240 psi

950 °F

38 psi

385 psi

510 psi

765 psi

1,145 psi

1,910 psi

3,180 psi

1000 °F

20 psi

320 psi

430 psi

640 psi

965 psi

1,605 psi

2,675 psi

1050 °F

20 psi

310 psi

410 psi

615 psi

925 psi

1,545 psi

2,570 psi

1100 °F

20 psi

255 psi

345 psi

515 psi

770 psi

1,285 psi

2,145 psi

1150 °F

20 psi

200 psi

265 psi

400 psi

595 psi

995 psi

1,655 psi

1200 °F

20 psi

155 psi

205 psi

310 psi

465 psi

770 psi

1,285 psi

1250 °F

20 psi

115 psi

150 psi

225 psi

340 psi

565 psi

945 psi

1300 °F

20 psi

85 psi

115 psi

170 psi

255 psi

430 psi

715 psi

1350 °F

20 psi

60 psi

80 psi

125 psi

185 psi

310 psi

515 psi

1400 °F

20 psi

50 psi

65 psi

95 psi

145 psi

240 psi

400 psi

1450 °F

15 psi

35 psi

45 psi

70 psi

105 psi

170 psi

285 psi

1500 °F

10 psi

25 psi

35 psi

55 psi

80 psi

135 psi

230 psi

Dimensions Chart of Titanium Grade 5 Flanges

NPS

Pressure Class

O.D.

Flange Thickness

Raised Face Diameter

Bolt Circle Diameter

Bolt Hole Diameter

No. of Bolt Holes

Approx. Weight (kg)

1-1/2″

Class 150

5″ (127 mm)

11/16″ (17.5 mm)

2-7/8″ (73 mm)

3-7/8″ (98.4 mm)

5/8″ (15.9 mm)

4

1.8 kg

1-1/2″

Class 300

6-1/8″ (155 mm)

7/8″ (22.2 mm)

2-7/8″ (73 mm)

4-1/2″ (114.3 mm)

3/4″ (19 mm)

4

3.2 kg

2″

Class 150

6″ (152 mm)

3/4″ (19.1 mm)

3-5/8″ (92 mm)

4-3/4″ (120.7 mm)

3/4″ (19 mm)

4

2.7 kg

2-1/2″

Class 150

7″ (178 mm)

7/8″ (22.2 mm)

4-1/8″ (105 mm)

5-1/2″ (139.7 mm)

3/4″ (19 mm)

4

4.1 kg

3″

Class 150

7-1/2″ (190 mm)

15/16″ (23.8 mm)

5″ (127 mm)

6″ (152.4 mm)

3/4″ (19 mm)

4

4.9 kg

4″

Class 150

9″ (229 mm)

15/16″ (23.8 mm)

6-3/16″ (157 mm)

7-1/2″ (190.5 mm)

3/4″ (19 mm)

8

7.0 kg

4″

Class 300

10″ (254 mm)

1-1/4″ (31.8 mm)

6-3/16″ (157 mm)

7-7/8″ (200 mm)

7/8″ (22.2 mm)

8

11.5 kg

5″

Class 150

10″ (254 mm)

15/16″ (23.8 mm)

7-5/16″ (186 mm)

8-1/2″ (215.9 mm)

7/8″ (22.2 mm)

8

8.6 kg

6″

Class 150

11″ (279 mm)

1″ (25.4 mm)

8-1/2″ (216 mm)

9-1/2″ (241.3 mm)

7/8″ (22.2 mm)

8

11.3 kg

8″

Class 150

13-1/2″ (343 mm)

1-1/8″ (28.6 mm)

10-5/8″ (270 mm)

11-3/4″ (298.5 mm)

7/8″ (22.2 mm)

8

19.6 kg

10″

Class 150

16″ (406 mm)

1-3/16″ (30.2 mm)

12-3/4″ (324 mm)

14-1/4″ (362 mm)

1″ (25.4 mm)

12

28.8 kg

12″

Class 150

19″ (483 mm)

1-1/4″ (31.8 mm)

15″ (381 mm)

17″ (431.8 mm)

1″ (25.4 mm)

12

43.2 kg

14″

Class 150

21″ (533 mm)

1-3/8″ (34.9 mm)

16-1/4″ (413 mm)

18-3/4″ (476.3 mm)

1-1/8″ (28.6 mm)

12

58.1 kg

16″

Class 150

23-1/2″ (597 mm)

1-7/16″ (36.5 mm)

18-1/2″ (470 mm)

21-1/4″ (539.8 mm)

1-1/8″ (28.6 mm)

16

76.1 kg

18″

Class 150

25″ (635 mm)

1-9/16″ (39.7 mm)

21″ (533 mm)

22-3/4″ (577.9 mm)

1-1/4″ (31.8 mm)

16

93.7 kg

20″

Class 150

27-1/4″ (698 mm)

1-11/16″ (42.9 mm)

23″ (584 mm)

25″ (635 mm)

1-1/4″ (31.8 mm)

20

122 kg

24″

Class 150

32″ (813 mm)

1-7/8″ (47.6 mm)

27-1/4″ (692 mm)

29-1/2″ (749.3 mm)

1-3/8″ (34.9 mm)

20

185 kg

Titanium Grade 5 Flanges Size Chart

NPS

Flange OD

Flange Thickness

Hub Diameter

No. of Bolt Holes

Bolt Hole Diameter

Bolt Circle Diameter (BCD)

½″

3.50″

0.31″

1.05″

4

0.63″

2.38″

¾″

3.88″

0.34″

1.30″

4

0.63″

2.75″

1″

4.25″

0.38″

1.67″

4

0.63″

3.12″

1 ½″

5.00″

0.44″

2.17″

4

0.75″

3.88″

2″

6.00″

0.50″

2.67″

4

0.75″

4.75″

3″

7.50″

0.56″

3.86″

4

0.75″

6.00″

4″

9.00″

0.63″

4.86″

8

0.75″

7.50″
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Types of Titanium Grade 5 Flanges

ASTM B381 Gr.5 Puddle Flange

ASTM B381 Gr.5 Puddle Flange

ASTM B381 Grade 5 Header Flanges

ASTM B381 Grade 5 Header Flanges

Commercially Pure Titanium Grade 5 Blind Flanges

Commercially Pure Titanium Grade 5 Blind Flanges

Cp Grade 5 Titanium Exhaust Flanges

Cp Grade 5 Titanium Exhaust Flanges

Grade 5 Titanium Socket Weld Flanges

Grade 5 Titanium Socket Weld Flanges

Ti Gr 5 Weld Neck Flanges

Ti Gr 5 Weld Neck Flanges

Titanium Grade 5 Slip On Flange

Titanium Grade 5 Slip On Flange

UNS N56400 Threaded Flanges

UNS N56400 Threaded Flanges

WNR 3.7164 Lap Joint Flange

Applications and Industrial Uses of Titanium Grade 5 Flanges

  • Aerospace Industry
  • Offshore Oil & Gas Industry
  • Marine Industry
  • Desalination Plants
  • Chemical Processing Industry
  • Power Generation Industry
  • Petrochemical Industry
  • Defense & Naval Industry
Application Industries

Frequently Asked Questions

Titanium Grade 5 Flanges are high-strength piping components made from Ti-6Al-4V titanium alloy, used to connect pipes, valves, pumps, and other equipment.
Titanium Grade 5 Flanges are made from Ti-6Al-4V, containing approximately 6% aluminum and 4% vanadium, with titanium as the balance.
Grade 5 offers higher strength, with a minimum tensile strength of about 895 MPa, while Grade 2 is commercially pure titanium with lower strength but excellent corrosion resistance.

Yes. Titanium Grade 5 offers excellent corrosion resistance due to the stable protective oxide layer that forms naturally on its surface.

Yes, Titanium Grade 5 Flanges offer excellent corrosion resistance in seawater, chlorides, and many chemical environments due to their protective titanium oxide layer.
Yes, Titanium Grade 5 Flanges can be welded using suitable procedures, typically with inert-gas shielding to prevent contamination and maintain weld quality.
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