ISO 9001 Certified ASTM B381 Grade F-2 Flange Manufacturer Ex-Stock UNS R50400 Grade, MTC EN 10204 3.1 Forging Titanium Grade 2 Flanges In-House Since 2012

Titanium Grade 2 Flanges

Titanium Grade 2 Flanges Abstract

Sizes In StockNPS ½″ to 24″ • ASME B16.5
Delivery TimeEx-Stock: 3–5 Days • Mill-Order: 5–6 Wks
Class Range150#, 300# • Higher class engineered
Grade & UNSASTM B381 Grade F-2, UNS R50400
Seawater/Chloride AttackVirtually immune, protective oxide film
European DesignationW.Nr 3.7035, DIN 17850/17860
FormsForged & CNC Machined
MTC CertificateEN 10204 3.1 and 3.2
Flange FaceRF, FF
OriginManufactured In Mumbai, India
99%+ Ti
Commercially Pure Base
UNS R50400 chemistry confirmed on every heat certificate
40% Of Steel
Weight At Similar Strength
Density 4.51 g/cm³ cuts installed piping weight sharply
Seawater & Sour
Service Rated
NACE MR0175 / ISO 15156 compliant material on request
Ready Stock
Class 150 & 300
Frequently ordered sizes and classes despatch within days
Own Plant
Mumbai Facility
Machined in-house from certified billet with no trading middlemen
Free Consult
Grade Desk
Metallurgists confirm class, facing and finish before you order
Titanium Grade 2 Flanges

 

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 Grade 2 Flange Specification

 

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
NPSDNClassODBolt CircleBolt HolesBolt SizeThicknessHub Dia.
½″DN1515089604½″11.235
30095664⅝″14.238
1″DN25150108794½″14.243
300117844¾″17.549
2″DN501501521214⅝″19.062
3001651278¾″22.473
4″DN1001502291908⅝″23.9115
3002552008⅞″31.8127
6″DN1501502792418¾″25.4168
30032027012⅞″36.6184
8″DN2001503432988¾″28.4222
300380330121″41.4241
12″DN30015048343212⅞″31.8330
300521451161¼″50.8346
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
NPSDNCarbon Steel Equivalent (kg)Titanium Grade 2 (kg)
½″DN150.500.29
2″DN502.301.32
4″DN1005.903.39
6″DN1508.604.94
8″DN20013.507.76
12″DN30028.8016.55
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.

Export Markets
UAEUAE
TurkeyTurkey
CanadaCanada
UKUK
Saudi ArabiaSaudi Arabia
SingaporeSingapore
USAUSA
MexicoMexico
ThailandThailand
ItalyItaly
NetherlandsNetherlands
GermanyGermany
PhilippinesPhilippines
MalaysiaMalaysia
UgandaUganda
IndonesiaIndonesia
South AfricaSouth Africa
VietnamVietnam
VenezuelaVenezuela
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 DiameterTorque (Nm)Torque (ft-lb)
½″8059
⅝″155115
¾″270200
⅞″429319
1″639474
1⅛″925686

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

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

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

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

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

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

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

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

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
Elongation20% min
Hardness80 HRB max
13 · Cross-Reference

Titanium Gr 2 Flanges Material Equivalent

Titanium Grade 2 carries an equivalent designation in every major piping standard.

USAASTM / ASME (USA)

  • UNS R50400 - ASTM B381 Grade F-2 (Forgings)
  • ASTM B265 (Plate / Sheet / Strip)
  • ASTM B348 (Bar / Billet)
  • ASME SB381 (Flanges)

GermanyDIN / EN (Germany)

  • Werkstoff 3.7035
  • DIN 17850, 17860, 17862

UKBS (UK)

  • BS TA2

JapanJIS (Japan)

  • JIS Class 2 (JIS H4600)

FranceAFNOR (France)

  • T40

RussiaGOST (Russia) & Trade Names

  • GOST BT1-0
  • CP-Ti Grade 2 / Ti 50A
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.

Titanium Grade 2 Flanges - Built On Trust With Mortec
Best strength-to-weight ratio of any commercially pure metal stocked
Ready stock in RF and FF finish through Class 300
Every Titanium Grade 2 heat ships with EN 10204 3.1 MTC
Custom bore, thread and finish machined to your drawing




Certifications & Credentials
Certified to PED 2014/68/EU for the manufacture of forged steel products
Stock, distribute and trade Steel Flanges, Nuts and Bolts, and precision-machined parts in Nickel Alloys, High Temperature Alloys and Super Alloys
Since 2012, exporting Oil and Gas piping items built to NACE MR0175 / ISO 15156 across the Egypt, Tunisia, Netherlands, Azerbaijan, South Africa, Algeria, Saudi Arabia and Morocco
Hold the largest import and stock inventory of bolting accessories, in both ferrous and non-ferrous metals, in India

Authorized Supplier For The Following Companies - Material At Reseller Price For Traders

Associated Companies - ADNOC, SABIC, Saudi Aramco, GASCO, ORPIC, KNPC, QATARGAS

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