at glance
Mortec At A Glance
Established
Since 2012 • 15+ yrs experience
Manufacturing Units
2 in-house units • Taloja & Mazgaon
Stockyard Area
8,850+ sq.ft • Ready-stock inventory
Certifications
ISO 9001:2015, PED • GST, IEC & MSME
Clientele
100+ clients • India & export markets
Export Reach
15+ countries • GCC, Africa & APAC
Testing Offered
Tensile, hardness & PMI • MTC EN 10204 3.1
Shipment Documents
Invoice, Packing List • COO, COI, MTC, BL & Lab Report
Get ASTM B381 UNS R50400 Blind Flange Manufacturer In India With Genuine Material At Factory-Direct Pricing
Mortec Manufacturing Co is an established Titanium Grade 2 Flanges Manufacturer in India. We machine every ASTM B381 Grade F-2 flange from certified titanium stock. All work happens at our own Mumbai facility. Each blank is heat-numbered before CNC turning begins. Stress-relief and mill annealing restore the single-phase alpha structure. This locks in the grade's signature weld-friendly ductility. It resists chlorides, seawater and oxidizing acids reliably. We also manufacture Grade 2 Titanium Slip On Flange and CP 2 Ti Plate Flanges.
Machining follows ASME B16.5 dimensions completed fully in-house. We offer RF or FF facing in smooth or serrated finish. Custom bore drilling is done as per your isometric. As a direct Titanium Grade 2 Flanges Supplier in India, we hold stock. We also supply Titanium Alloy Gr 2 Weld Neck Flange and Ti Metal Gr 2 Blind Flange. Weld Neck, Slip-On, Blind, Socket Weld and Threaded types are ex-stock. Sizes are held in Class 150 and 300 only. Dispatch happens within three to five days. Every order includes PMI reports and hydrostatic test records. We also provide EN 10204 3.1 or 3.2 mill test certificates.
01 · Specification
Titanium Grade 2 Flanges Specification
Get your Titanium Grade 2 Flanges quote from the machine shop floor with MTC and NACE paperwork bundled.
Titanium Gr 2 Flange Face & Thread Options
- RF, FF facing
- NPT, BSPT thread
Titanium Flanges Dimensional Standards
- ASME B16.5
- MSS SP-44 (large sizes)
UNS R50400 Flanges Manufacture & Finish
- Forged blank, CNC machined
- Smooth, serrated, pickled finish
Titanium Alloy Flange Testing Methods
- Hydrostatic, PMI, hardness, RT
- Third-party inspection (TPI) on request
CP Gr 2 Titanium Blind Flange Sour & Seawater Compliance
- NACE MR0175 / MR0103
- ISO 15156 compliant on request
Titanium Flanges Supporting Material & Packing
- Gaskets, stud bolts, ring joints
- Anti-scratch, export-grade packing
WNR 3.7035 Socket Weld Flanges Raw Material Source
- Forging billet to ASTM B381
- Full heat-to-flange traceability
Titanium Flanges Quality Systems
- ISO 9001:2015 certified plant
- Factory / client audits welcome
Titanium Grade 2 Flange Manufacturer In Mumbai Since 2012
Share your NPS, class and facing - a stock confirmation lands in your inbox within hours.
Request Quote Now
02 · Range
B381 R50400 Slip On Flange Dimensions
Frequently ordered Titanium Grade 2 flange sizes stay ex-stock in Class 150 and 300.
Popular Sizes
½″
2″
4″
6″
8″
Available Sizes
Nominal Bore½″ NB – 24″ NB (ASME B16.5)
DN RangeDN 15 – DN 600
FacingRF, FF
Bore TypeStandard / Custom bore on request
Full Dimensional Charts
Complete OD, bolt-circle, thickness and bolt-hole dimensions for Class 150 and Class 300, Slip-On type, are published below per ASME B16.5. Other sizes and classes are issued as an Excel/PDF chart on request.
Request Full Dimension Chart
ASME B16.5 Slip-On Flange Dimensions (mm) - Class 150 & 300
| NPS | DN | Class | OD | Bolt Circle | Bolt Holes | Bolt Size | Thickness | Hub Dia. |
| ½″ | DN15 | 150 | 89 | 60 | 4 | ½″ | 11.2 | 35 |
| 300 | 95 | 66 | 4 | ⅝″ | 14.2 | 38 |
| 1″ | DN25 | 150 | 108 | 79 | 4 | ½″ | 14.2 | 43 |
| 300 | 117 | 84 | 4 | ¾″ | 17.5 | 49 |
| 2″ | DN50 | 150 | 152 | 121 | 4 | ⅝″ | 19.0 | 62 |
| 300 | 165 | 127 | 8 | ¾″ | 22.4 | 73 |
| 4″ | DN100 | 150 | 229 | 190 | 8 | ⅝″ | 23.9 | 115 |
| 300 | 255 | 200 | 8 | ⅞″ | 31.8 | 127 |
| 6″ | DN150 | 150 | 279 | 241 | 8 | ¾″ | 25.4 | 168 |
| 300 | 320 | 270 | 12 | ⅞″ | 36.6 | 184 |
| 8″ | DN200 | 150 | 343 | 298 | 8 | ¾″ | 28.4 | 222 |
| 300 | 380 | 330 | 12 | 1″ | 41.4 | 241 |
| 12″ | DN300 | 150 | 483 | 432 | 12 | ⅞″ | 31.8 | 330 |
| 300 | 521 | 451 | 16 | 1¼″ | 50.8 | 346 |
03 · Mass Reference
Ti Metal Gr 2 Flange Weight Chart
Titanium's 4.51 g/cm³ density is about 57% of forged carbon steel, so a Titanium Grade 2 flange in the same size.
Approx. Slip-On Flange Weight (kg) - Class 150, By Popular Size
| NPS | DN | Carbon Steel Equivalent (kg) | Titanium Grade 2 (kg) |
| ½″ | DN15 | 0.50 | 0.29 |
| 2″ | DN50 | 2.30 | 1.32 |
| 4″ | DN100 | 5.90 | 3.39 |
| 6″ | DN150 | 8.60 | 4.94 |
| 8″ | DN200 | 13.50 | 7.76 |
| 12″ | DN300 | 28.80 | 16.55 |
04 · Production Flow
Grade 2 Titanium Flanges Manufacturing Process
Every Titanium Grade 2 flange moves through six controlled stages before it reaches the packing bay.
1. Billet Selection
ASTM B381 forging stock • Heat-numbered
2. Open-Die Forging
Upset & drawn to blank shape
3. Mill Annealing
Stress relief & grain refinement
4. CNC Machining
Bore, face, hub & bolt-hole drilling
5. Inspection & Testing
PMI, hydrostatic, dimensional check
6. Marking & MTC
Heat stamp, EN 10204 3.1/3.2 pack
Global Reach
Titanium Grade 2 Flanges Stocked & Dispatched Worldwide
Ex-stock Titanium Grade 2 inventory and mill-order dispatch reach buyers across all these countries and beyond.
05 · Documentation
UNS R50400 Flange Certification
Every Titanium Grade 2 flange dispatch carries the paperwork your inspector or customs desk will ask for.
EN 10204 3.1 MTC
EN 10204 3.2 (TPI Witnessed)
NACE MR0175 Compliance Letter
ISO 9001:2015 Certified Plant
PMI & Hydrostatic Test Reports
Certificate Of Origin
Third-Party Inspection (Lloyd's, BV, SGS)
Radiography / Dye Penetrant Report
06 · Surface
CP Gr 2 Titanium Blind Flange Face Types
Titanium Grade 2 flange face finish is matched to gasket type and service, confirmed at RFQ stage.
RF Smooth Finish
Concentric Serrated
Spiral Serrated
Flat Face (FF)
Mirror / Lapped Finish
Pickled & Passivated
Shot-Blasted Mill Finish
Buffed / Polished
07 · Bolt-Up Reference
Titanium Alloy Gr 2 Flange Torque Values
Starting torque for lubricated ASTM A193 Grade B7 studs on a spiral-wound gasket.
Typical Stud Bolt Torque - Lubricated, f≈0.13
| Stud Diameter | Torque (Nm) | Torque (ft-lb) |
| ½″ | 80 | 59 |
| ⅝″ | 155 | 115 |
| ¾″ | 270 | 200 |
| ⅞″ | 429 | 319 |
| 1″ | 639 | 474 |
| 1⅛″ | 925 | 686 |
Order WNR 3.7035 Weld Neck and Slip On Flange Rated For Continuous Service Up To 315 Degrees C
08 · Metallurgy
WNR 3.7035 Flange Heat Treatment
Titanium Grade 2 ships mill-annealed; it skips steel's quench-and-temper strengthening treatment entirely.
Mill Anneal Temperature595–760°C, air cool
Stress Relief480–595°C, 1hr/inch
Recommended CoolingAir Cool (Non-Hardenable)
Post-Weld TreatmentVacuum / Inert-Purged Anneal
09 · Quality Control
Ti Grade 2 Flange Testing Methods
Each production lot is checked against ASTM B381 acceptance criteria before it is released for dispatch.
Chemical Analysis (Spectrometry)
Tensile & Elongation Test
Hardness (Rockwell B)
PMI (Positive Material ID)
Hydrostatic Pressure Test
Dye Penetrant / Radiography
Ultrasonic Testing (On Request)
Dimensional Inspection Report
Titanium Grade 2 Flanges Exporter In India To Durban & Cape Town Ports
Coastal South African buyers get chloride-immune flanges backed by a complete test data pack.
Request Export Quote
10 · Product Range
Titanium Alloy Gr 2 Flanges Types
Titanium Grade 2 Flanges Manufacturer in India producing Threaded, Lap Joint and Orifice types alongside the standard range.
ASTM B381 R50400 Weld Neck Flange
ASME B16.5 • ½″–24″
- Tapered hub, full penetration weld
- Best for cyclic / high-pressure lines
B381 UNS R50400 Slip-On Flange
ASME B16.5 • Class 150–300
- Fast-fit, lower fabrication cost
- Suited to low-pressure service
Titanium Grade 2 Blind Flange
ASME B16.5 • Class 150 & 300
- Seals pipe ends & vessel nozzles
- No bore machining required
WNR 3.7035 Socket Weld Flange
ASME B16.5 • ≤4″ NB
- Bore-fit socket, single fillet weld
- Good for small high-pressure lines
ASTM B381 UNS R50400 Threaded Flange
ASME B16.5 • ≤4″ NB
- Weld-free, bolted assembly
- Preferred in hazardous-area work
Commercially Pure Ti Gr 2 Lap Joint Flange
ASME B16.5 • With Stub End
- Free rotation for bolt alignment
- Titanium stub, steel back ring option
Ti Grade 2 Orifice Flange
AGA-3 • Class 150–300
- Jack-screw tapped for meter runs
- Used for custody-transfer flow metering
Titanium Alloy Gr 2 Long Neck Flange
MSS SP-44 • Extended Hub
- Extended hub for tank/vessel nozzles
- Reduces separate nozzle fabrication
11 · Composition
CP 2 Ti Plate Flanges Chemical Composition
Commercially pure titanium chemistry gives Grade 2 its single-phase alpha structure.
Chemical Composition - ASTM B381 Grade F-2 / UNS R50400 (% by weight)
TiBalanceTitanium
Fe0.30 maxIron
O0.25 maxOxygen
C0.08 maxCarbon
N0.03 maxNitrogen
H0.015 maxHydrogen
Other0.40 maxOther Elements, Total
12 · Strength Data
Grade 2 Titanium Flange Mechanical Properties
ASTM B381 sets minimum room-temperature properties for annealed Grade F-2 forgings.
Tensile Strength345 MPa / 50 ksi min
Yield Strength (0.2%)275 MPa / 40 ksi min
14 · Comparison
Titanium Grade 2 Vs Grade 5 Flanges
Buyers often weigh commercially pure Grade 2 against alloyed Grade 5 before finalising a purchase order.
Titanium Grade 2 (R50400) - This Grade
- Yield Strength: 275 MPa / 40 ksi min
- Composition: Commercially pure, unalloyed
- Best For: Chemical, marine, desalination duty
- Formability & Weldability: Excellent
Titanium Grade 5 (Ti-6Al-4V, R56400)
- Yield Strength: ≈ 828 MPa / 120 ksi min
- Composition: 6% Al, 4% V alloy
- Best For: Aerospace, high-strength structural parts
- Formability & Weldability: Moderate
15 · Corrosion Data
CP Titanium Seawater & Chlor-Alkali Resistance
Titanium Grade 2 features a stable, protective oxide film. It resists chlorides across UAE, South Africa, and Kenya.
Virtually Immune To Seawater Attack
Resists Chloride Pitting & Crevice Corrosion
Stable In Wet Chlorine & Hypochlorite
Standard Material For Chlor-Alkali Cells
Suited To Desalination & Brine Handling
Caution In Dry Chlorine Gas & Fluoride Media
ASTM B381 UNS R50400 Flange Supplier In Dubai - NACE MR0175 Compliant
Chloride-service Titanium Grade 2 stock ready for GCC inspection and same-week dispatch.
Get Supplier Quote
16 · Customs
Titanium Flanges HSN Code & Export Documents
Correct classification keeps your shipment moving smoothly through customs without delay.
HSN Code 81089090Chapter 81 - titanium and titanium article classification for flanges and fittings.
Domestic GST 18%Applies to India invoicing; export orders are zero-rated.
Certificate Of OriginIssued per shipment for destination-country customs clearance.
Packing List & MTC PackBundled with invoice and B/L copy for import clearance.
17 · Power Sector
Titanium Flanges In Geothermal & Power Service
Geothermal brine corrodes steel quickly; Kenyan plants choose Titanium Grade 2 instead.
Geothermal Wellhead & Brine Piping
Surface Condenser Waterboxes
Power Plant Cooling Water Systems
Flue-Gas Desulfurization Lines
18 · Industries
Ti Gr 2 Flange Applications & Industries
These are the industries that specify Titanium Grade 2 flanges most often, and why.
Desalination Plants
Marine & Shipbuilding
Aerospace Fuel & Hydraulic Lines
Chlor-Alkali & Chemical Processing
Pulp & Paper Bleaching Circuits
Offshore Platforms
Automotive & Motorsport
Power Plant Condenser Systems
Logistics
Titanium Grade 2 Flange Delivery Estimate
Confirm your size, class and finish against ex-stock inventory, and here is the lead time you can plan around.
Ex-Stock Dispatch
- Stocked items leave the Mumbai facility in 3–5 working days
Sea Freight
- Port-to-port transit typically runs 15–35 days from Nhava Sheva/Mumbai
Air Freight
- Emergency shutdown spares fly out in 3–6 days
Country-Specific ETA
- Exact door-to-port schedule confirmed once your RFQ is raised
FAQs
Titanium Grade 2 Flange FAQs
Quick answers to the questions buyers ask us most before placing an order.
What are Ti Grade 2 Orifice Flanges used for?
Ti Grade 2 Orifice Flanges suit custody-transfer flow metering on process lines.
When should I choose Titanium Alloy Gr 2 Long Neck Flanges?
Titanium Alloy Gr 2 Long Neck Flanges suit tank and vessel nozzle connections.
Is a Grade 2 Titanium Reducing Flange available for size transitions?
Yes, Grade 2 Titanium Reducing Flange is machined to your isometric drawing.
What makes the Commercially Pure Ti Grade 2 Lap Joint Flange useful?
Commercially Pure Ti Grade 2 Lap Joint Flange allows free rotation for bolt alignment.
What service do Titanium Gr 2 Puddle Flanges provide?
Titanium Gr 2 Puddle Flanges give positive line isolation during maintenance shutdowns.