Titanium Gr2 Tube Fittings (UNS R50400 / W.Nr. 3.7035, CP Titanium Grade 2 Instrumentation Fittings)
Titanium Gr2 tube fittings are mechanical-grip compression fittings machined from UNS R50400, commercially pure (CP) unalloyed titanium, the workhorse CP grade, roughly 99% titanium with controlled interstitials. One or two ferrules swage onto the tube's outside diameter and pull up to a leak-tight, gas-tight seal with a firm mechanical grip. The reason Titanium Gr2 gets specified for a fitting is corrosion, not strength: it carries a tenacious, self-healing titanium-dioxide passive film that makes it effectively immune to chloride pitting, crevice attack at moderate temperatures, and chloride stress-corrosion cracking, the failure modes that retire stainless in seawater. It is also light, about 4.5 g/cc, roughly 40% the density of steel. Crestflo carries these fittings from 1/8-inch through 2-inch (50 mm) tube OD, single and double (twin) ferrule, imperial and metric. They are qualified to ASTM F1387, and because titanium galls readily, a silver anti-galling plating option is available on the ferrules and threads. Standard items ship from ready stock; specials are built to order, with delivery running 6-8 weeks. Request a quote to price out your configuration.
Swagelok®, Parker®, and Hy-Lok® are trademarks of their respective owners. Crestflo supplies UNS R50400 to standard chemistry, is not affiliated with or endorsed by any brand or mill referenced here, and all interchange is strictly dimensional.
What Titanium Gr2 Compression Tube Fittings Are
A Titanium Gr2 compression tube fitting is built for fluid-system instrumentation: a body, a nut, and one or two ferrules that bite onto the tube's outer diameter as the nut is tightened. The joint comes apart and goes back together without losing integrity. No flaring, no welding, no elastomer seal sitting in the leak path. The seal is metal-to-metal, so the service window comes from the alloy, not from an O-ring failing first.
Scope matters here. These are instrumentation compression tube fittings in CP titanium Grade 2, not mill bar, not sheet or plate, not forgings or line pipe, and not aerospace Ti-6Al-4V (Grade 5) or medical implant stock. ("Gr2" is the CP titanium grade designation, not a plumbing or electrical part.) Crestflo's Titanium Gr2 fittings land on small-bore instrument tubing for transmitters, analyzers, sample lines, chemical-dosing systems, and process taps across seawater, offshore, desalination, chlor-alkali, and coastal marine service, the chloride-driven duty where even high-alloy stainless is at risk.
Also Known As: UNS R50400, 3.7035, ASTM Grade 2 & "50A"
Buyers and specifiers write this grade several ways, and they all point to the same commercially pure titanium. On drawings and material call-outs it shows up as Titanium Gr2, Ti Gr2, Ti Grade 2, Grade 2 titanium, CP Titanium Grade 2, or unalloyed titanium Grade 2. Its formal designations are UNS R50400 (the US number) and Werkstoff 3.7035 (the European one); DIN calls it Ti2 / Ti 40, JIS calls it Class 2, and the common trade name is "50A" (Ti-50A). Ask for "Titanium Gr2 ferrule fittings," "UNS R50400 tube fittings," "CP titanium tube fittings," or "Ti Gr2 compression fittings" and you get exactly what's described on this page, the terms are interchangeable.
| Designation type | Value |
|---|---|
| Trade / common names | Titanium Gr2, Ti Gr2, CP Titanium Grade 2, Grade 2 titanium, "50A" / Ti-50A |
| UNS number | R50400 |
| Werkstoff (W.Nr.) | 3.7035 |
| ASTM designation | Grade 2 |
| DIN / JIS | Ti2 / Ti 40 · Class 2 |
| Alloy family | Commercially pure (CP), unalloyed alpha titanium |
UNS R50400 and Werkstoff 3.7035 describe one and the same alloy, so whichever designation shows up on a spec sheet, you are looking at the same CP titanium. One caution: Grade 2 is not Grade 5. Grade 5 (Ti-6Al-4V, UNS R56400) is an alloyed, high-strength titanium aimed at structural and aerospace loads, a different metal for a different job, with lower weldability and corrosion resistance than CP Grade 2.
Why Choose Titanium Gr2 for Instrumentation Tube Fittings
Titanium is a different metal system from stainless, and the difference is the whole reason to specify it for a fitting. Stainless and nickel alloys resist chlorides through a chromium-molybdenum-nitrogen balance; titanium resists them through a passive titanium-dioxide (TiO₂) oxide film that reforms the instant it is scratched. That mechanism is why Grade 2 is effectively immune to chloride pitting, crevice corrosion at moderate temperatures, and chloride stress-corrosion cracking, not merely resistant, but outside the failure modes that govern stainless fittings in seawater. Because titanium does not rely on a stainless alloying balance, a PREN does not apply to it; PREN is a stainless/duplex index and is not quoted for titanium.
The film thrives in oxidizing and chloride-bearing conditions and is weakened by strongly reducing acids, so be honest about where Grade 2 belongs and where it does not. It is excellent in seawater, brine, wet chlorine, hypochlorite, chlorine dioxide, and oxidizing acids such as nitric. It is poor in dry chlorine (which can ignite titanium), in hydrofluoric acid (which attacks it aggressively, avoid entirely), and in hot concentrated reducing acids like hydrochloric and sulfuric unless they are dilute, inhibited, or carry an oxidizer. Where the governing threat is a reducing acid, the right answer is a nickel alloy, Hastelloy C-276 or Monel 400, not titanium. Match the alloy to the media.
There are two other reasons Grade 2 earns a place. First, weight: at a density of about 4.51 g/cm³ it is roughly 40% the weight of steel, which matters on aerospace, topside, and weight-sensitive marine installations. Second, galling. Titanium galls readily under high contact pressure, which is a real engineering concern for a compression fitting where ferrules bite and threads make up under torque. Crestflo addresses it directly with a silver anti-galling plating option on ferrules and threads, a genuine design point for a titanium fitting, not a cosmetic finish. More on that below.
For the full metallurgical picture, composition, mechanical and physical properties, corrosion-by-media detail, and grade-to-grade comparison, see the Titanium Grade 2 grade page. The reference composition is summarized here for convenience when writing specs. Values follow the applicable ASTM specification and can be customized to requirement; actual per-heat chemistry is reported on the material test certificate that ships with each order.
| Element | Max wt % (per applicable ASTM specification) |
|---|---|
| Nitrogen (N) | 0.03 |
| Carbon (C) | 0.08 |
| Hydrogen (H) | 0.015 |
| Iron (Fe) | 0.30 |
| Oxygen (O) | 0.25 |
| Titanium (Ti) | Balance (~99%) |
Oxygen and iron are the interstitials that set Grade 2's strength: it carries more of both than Grade 1, which is why it is stronger while staying highly formable and weldable. The key strength and physical figures that make Grade 2 a fitting-grade CP titanium are summarized below.
| Property | Titanium Gr2 (UNS R50400) |
|---|---|
| Tensile strength (min) | 345 MPa (50 ksi) |
| Yield strength (0.2% offset, min) | 275 MPa (40 ksi) |
| Elongation (min) | 20% |
| Hardness | ~160 HB (~80 HRB) |
| Density | 4.51 g/cm³ (0.163 lb/in³) |
| Melting point | ~1665 °C (~3030 °F) |
| Modulus of elasticity | ~103–105 GPa (~15 Msi) |
| Magnetic response | Non-magnetic |
Those figures are standard published minima and nominal physical data for the annealed condition; actual certified properties for a given heat are stated on the material test certificate. Grade 2 is an alpha grade, so it is not strengthened by heat treatment, and its hardness is read on the Brinell or Rockwell B scale (CP titanium is too soft for HRC to read meaningfully). Note the strength context: Grade 2 yields at 275 MPa, modest next to a super-duplex or nickel alloy, so where you need high strength-per-wall in chloride service, step across to super-duplex 2507 rather than up-rating titanium.
Titanium Gr2 Tube Fitting Sizes (1/8-inch to 2-inch OD): Imperial & Metric
Crestflo machines UNS R50400 tube fittings in both imperial fractional and metric tube-OD series, with end connections up to 2-inch (50 mm) OD. The chart below covers the standard range. Working pressure for any given fitting depends on size, wall thickness, and temperature; it comes from standard tube-fitting pressure data for the tube OD and wall, following ASTM/ASME practice, and the exact rated pressure for your configuration is confirmed on the quotation. Values follow the applicable standard and can be customized to requirement.
| Tube OD, imperial | Tube OD, metric | Availability |
|---|---|---|
| 1/8", 1/4", 3/8", 1/2" | 6 mm, 8 mm, 10 mm, 12 mm | Standard range |
| 5/8", 3/4", 1" | 14 mm, 16 mm, 18 mm, 20 mm, 22 mm, 25 mm | Standard range |
| up to 2" (50 mm) | up to 50 mm | Made-to-order |
Titanium Gr2 Tube Fitting End & Thread Connections: NPT, BSPP, JIC & Weld
Fittings come with tube-OD compression ends, tapered or parallel threads, or weld ends. All are available in national, international, and custom thread types.
| End type | Thread / connection standards |
|---|---|
| Tube-OD (compression) | Fractional inch and metric OD |
| Male / female tapered thread | NPT, NPTF, BSPT |
| Male / female parallel thread | BSPP, ISO parallel, SAE ORB |
| Flare / port | JIC 37° (per ISO 8434-2), SAE ORB |
| Weld end | Socket-weld, butt-weld, orbital |
Single vs Double Ferrule, Hardened vs Non-Hardened & Silver Anti-Galling Plating
UNS R50400 fittings come in single-ferrule and double (twin) ferrule designs, with hardened or non-hardened ferrules supplied depending on the job. This choice shapes gripping action, vibration resistance, and how many times a fitting can be reassembled. Titanium adds a wrinkle the stainless grades do not: it galls badly. Under the high local contact pressure where a ferrule bites the tube and where threads make up under torque, bare titanium-on-titanium can seize and tear. That is why the silver anti-galling plating option matters on a titanium fitting, a thin silver layer on the ferrule back and the thread gives a sacrificial, low-shear interface that lets the joint make up and come apart cleanly. Crestflo applies it on request wherever repeated make-up or high assembly torque is expected; it is the single most important finish call on a Grade 2 fitting.
| Configuration / option | Description | When it is used |
|---|---|---|
| Double (twin) ferrule | Front ferrule seals, back ferrule grips | General instrumentation, vibration, gas-tight service |
| Single ferrule | One ferrule seals and grips | Simpler assemblies, certain hydraulic and OEM designs |
| Hardened ferrule | Case-hardened grip surface | Harder tube materials, maximum hold |
| Non-hardened ferrule | Softer grip surface | Thin-wall or softer tubing |
| Silver anti-galling plating | Sacrificial silver layer on ferrule/thread | Titanium make-up, high torque, repeated reassembly |
Replacement nuts and ferrules are stocked separately, and so are single-ferrule fittings and double-ferrule fittings.
Available Titanium Gr2 Fitting Shapes & Connectors
UNS R50400 covers the full geometry range, so you can build a complete instrument run in a single material:
- Union, elbow, tee, cross, and reducer fittings
- Male connectors, female connectors, and adapters for joining mismatched threads
- Bulkhead unions, port connectors, caps, and plugs for sealing off unused lines
- Weld connectors (socket, butt, and orbital)
Titanium Gr2 comes in related fitting families too, including 37° JIC flare fittings per ISO 8434-2, all combinable within the same instrument tubing system. For the full geometry range and ferrule design, start at the tube-fittings product hub.
Corrosion & Service: Seawater, Wet Chlorine, Oxidizing Acids: and the Honest Limits
What a fitting actually sees in service is the whole reason to specify Titanium Gr2 over stainless. This alloy was built for seawater and chloride duty, and that is exactly where it earns its place, but titanium is not universal, and the table below is honest about both sides. These are the grade's published, standard-referenced characteristics, not a per-fitting rating; the corrosion allowance and suitability for a specific stream stay the specifier's call.
| Media / service | Titanium Gr2 behavior | Note |
|---|---|---|
| Seawater / brine / brackish water | Excellent | Immune to chloride pitting and crevice at moderate temperature |
| Chlorides (general) | Excellent | The defining strength of the grade |
| Chloride stress-corrosion cracking | Immune | Outside titanium's failure modes, unlike austenitic stainless |
| Wet chlorine (Cl₂) | Excellent | Requires moisture present |
| Dry chlorine | Not recommended | Dry chlorine can ignite titanium, avoid |
| Hypochlorite / chlorine dioxide (ClO₂) | Excellent | Suited to chlorination and dosing service |
| Nitric acid (oxidizing) | Excellent | Passive film favored by oxidizers |
| Hydrochloric / sulfuric acid (reducing) | Limited | Attacked unless dilute, inhibited, or oxidizer-bearing |
| Hydrofluoric acid (HF) | Not recommended | HF aggressively attacks titanium, avoid entirely |
| Caustic (NaOH) | Good | Well-behaved across common concentrations/temperatures |
As an unalloyed alpha grade, Grade 2 holds useful mechanical strength to roughly 315 °C (600 °F) for continuous service, with tensile and yield derating as temperature rises, and it performs well down to cryogenic temperatures. Where the governing threat is a hot reducing acid rather than chlorides, use a nickel alloy such as Hastelloy C-276 or Monel 400; where you need chloride resistance together with much higher strength-per-wall, super-duplex 2507 is the better fit; and where the chloride load is heavy but titanium's cost or reducing-acid limits are a problem, a 6-moly super-austenitic like 254 SMO is the alternative. For the side-by-side with stainless, see titanium vs stainless steel.
Standards, Testing & NACE / ISO 15156 Compliance
Crestflo qualifies its compression tube fittings to ASTM F1387, the performance standard for mechanically attached fittings. That is the basis for the dimensional interchange and mechanical-integrity claims below. For sour and chloride service, titanium alloys are addressed as corrosion-resistant alloys within NACE MR0175 / ISO 15156, and Grade 2 is used in such service where the application qualifies; confirm the specific environmental limits against your service before committing. The grade's product-form specifications sit in the ASTM B-series for titanium, B337 and B338 (seamless and welded tube), B348 (bar and billet), B363 (welded fittings), and B381 (forgings), each with a matching ASME SB designation; we hold the standard approvals that apply to instrumentation tube fittings. Mill forms such as bar and sheet are feedstock for machined bodies, not products Crestflo sells.
| Standard / certification | Scope | Applies here |
|---|---|---|
| ASTM F1387 | Mechanically attached fitting performance | Yes |
| NACE MR0175 / ISO 15156 | Sour / chloride-service materials (where the application qualifies) | On request |
| EN 10204 MTC 3.1 / 3.2 | Material test certification | Yes |
| ASTM B337 / B338 / B363 / B381 | R50400 tube, welded-fitting & forging feedstock | As applicable |
| ISO 8434-2 | 37° flare end connection | As applicable |
| ISO 9001 / 14001 / 45001 & PED | Quality, environmental, safety, pressure | Certified |
These fittings go through a wide battery of tests. Hydraulic proof, burst, and impulse come first. Then pneumatic, flexure-fatigue, rotary-flex, vibration, and thermal-cycling work, plus pull-out and vacuum checks. Positive material identification (PMI) confirms the alloy on every piece, important on titanium, where a mis-supplied stainless substitute looks similar once machined but has none of the chloride immunity. NDT is standard and done in-house. Destructive testing goes out to labs accredited under ISO/IEC 17025. Third-party inspection is available on request.
Material Traceability & Certification
Every UNS R50400 part is marked with its own heat/lot number. Each shipment comes standard with an EN 10204 MTC 3.1 certificate, and 3.2 is available on request. PMI confirms grade at the part level, every time. That documentation backs solid audit trails for seawater, offshore, desalination, and chlor-alkali work, the jobs where a mis-specified fitting is not a small problem. On titanium the specific risk is substitution: a fitting quietly supplied as stainless looks similar once finished but pits and cracks in the chloride service titanium was chosen to survive. Datasheets and CAD models are available to customers on request.
Drop-In Interchange with Swagelok, Parker & Hy-Lok
Crestflo UNS R50400 fittings are built as dimensional interchange / equivalent fittings for the major instrumentation brands, and that claim rests on ASTM F1387 performance qualification, not on marketing language. These aren't "compatible" or "intermix" parts. Brand names such as Swagelok®, Parker®, and Hy-Lok® remain trademarks of their respective owners, and Crestflo is not affiliated with them; the interchange is strictly dimensional. We don't publish a part-number table. Instead, we prepare interchange references per project: request your cross-reference, and our engineering team will map your existing part numbers to Crestflo Titanium Gr2 equivalents.
Origin & US-Serving Positioning
Crestflo manufactures for the US market. Standard product comes from India; US or European melt is available on request, with full material traceability. Parts are engineered as US drop-in replacements and ship in 6-8 weeks. TAA/DFARS and domestic-melt requirements are handled straight, no hedging, on our US-origin compliance page. If a project calls for a specific melt origin, just specify it on the RFQ.
Applications & Industries for Titanium Gr2 Tube Fittings
Titanium Gr2 fittings show up wherever chlorides and oxidizing media govern, the seawater-grade duty where pitting, crevice attack, and chloride SCC defeat stainless, and where titanium's light weight is a bonus:
- Desalination and seawater cooling, SWRO, MSF, and MED plants, and seawater cooling-water instrumentation, where raw chloride service defeats standard stainless and titanium is the long-service standard.
- Offshore and marine, platform and subsea instrument hook-ups, hydraulic control lines, and shipboard systems exposed to seawater and salt spray, where corrosion margin and light weight both count.
- Chlor-alkali and wet chlorine, chlorine, hypochlorite, and chlorine-dioxide dosing and process lines, a defining titanium application (provided the chlorine stays wet).
- Coastal and chemical processing, oxidizing-acid and analytical service, and coastal plant instrumentation where the ambient environment alone is corrosive.
- Aerospace and defense topside, weight-sensitive fluid systems where titanium's strength-to-weight and corrosion resistance both matter.
Crestflo supplies UNS R50400 instrumentation components into desalination and water, offshore and marine, and chemical processing applications, among others.
Why Crestflo for Titanium Gr2 Tube Fittings
Crestflo operates as the instrumentation division of an export house with four decades behind it and formal recognition from the Government of India. That parent company has a proven delivery record across the Middle East. Its backing grounds a new, focused instrumentation brand built on a handful of clear advantages:
- Lead time of 6-8 weeks versus 20+ weeks typical of the majors.
- ASTM F1387 drop-in interchange proof that mill and trading suppliers rarely publish.
- Silver anti-galling plating on titanium ferrules and threads, the make-up problem solved, not ignored.
- Both imperial and metric on every fitting, single or double ferrule, hardened or non-hardened.
- Heat-number marking plus MTC 3.1/3.2 on every order, PMI-confirmed, the anti-substitution guard on a corrosion-critical titanium part.
- Cost-competitive after US duties and tariffs, ISO 9001 / 14001 / 45001 & PED certified.
We Engineer Confidence.
Request a Quote for Titanium Gr2 Fittings
Give us the details: size, shape, ferrule, thread, plating, and quantity. We'll price it out and get your order scheduled:
- Request a quote, the fastest path to pricing and lead time.
- Request a sample for qualification.
- Become a distributor for line-card and stocking programs.
Datasheets and CAD models are available to customers on request. Reach Crestflo's US sales desk at sales@crestflousa.com or +1 346 594 9005 (Houston, TX). Round out your system with the related Titanium Gr2 instrumentation valves and Titanium Gr2 tubing, and serve the chloride-critical lines in desalination and water and offshore and marine.
Frequently Asked Questions
Are Titanium Gr2, UNS R50400, and 3.7035 the same thing?
Yes. "Titanium Gr2," "Ti Grade 2," "CP Titanium Grade 2," "Grade 2 titanium," and the trade name "50A" all point to the same material: commercially pure, unalloyed alpha titanium, roughly 99% titanium with controlled maxima of oxygen, iron, carbon, nitrogen, and hydrogen, designated UNS R50400 (US) and Werkstoff 3.7035 (Europe), with DIN Ti2/Ti 40 and JIS Class 2 equivalents. They describe one and the same alloy, and a fitting labeled Titanium Gr2 is routinely certified across those designations at once. Note it is not Grade 5 (Ti-6Al-4V), a different, alloyed high-strength titanium.
Why use Titanium Gr2 tube fittings instead of stainless steel?
Titanium Gr2 is the choice where chlorides and seawater defeat stainless. Unlike stainless, which resists chlorides through a chromium-molybdenum-nitrogen balance, titanium relies on a self-healing titanium-dioxide passive film that makes it effectively immune to chloride pitting, crevice corrosion at moderate temperatures, and chloride stress-corrosion cracking, the failure modes that retire 316 and even super-austenitic grades in seawater. It is also about 40% the weight of steel. The trade-off is strength and acid range: Grade 2 is modest in strength and is attacked by hot reducing acids and HF, so it is not a universal upgrade. For seawater, desalination, and wet-chlorine service it is the correct pick; for reducing acids use a nickel alloy, and for high strength-per-wall in chloride use super-duplex 2507.
How much do Titanium Gr2 tube fittings cost?
Titanium Gr2 fittings cost more than stainless because titanium is an expensive, difficult-to-machine metal that work-hardens and galls. In true seawater and chloride service, though, it is often the most economical choice over a service lifetime because it simply does not pit or crack where stainless does. Price shifts with size, shape, ferrule type, plating, and quantity ordered. Crestflo stays cost-competitive against the majors after US duties and tariffs, but it quotes per configuration. There's no live pricing posted anywhere. Request a quote to get a firm number.
What are Titanium Gr2 tube fittings used for?
They handle chloride- and oxidizer-driven instrumentation lines: desalination (SWRO/MSF/MED) and seawater cooling systems, offshore and subsea instrument hook-ups and hydraulic control lines, chlor-alkali and hypochlorite/chlorine-dioxide dosing, and coastal or marine chemical processing. In instrumentation terms, that's the fittings on impulse lines, sample systems, analyzer panels, and gauge hook-ups on those services, plus weight-sensitive aerospace and topside fluid systems.
Are Crestflo Titanium Gr2 fittings NACE-compliant?
Titanium alloys are addressed as corrosion-resistant alloys within NACE MR0175 / ISO 15156, and Grade 2 is used in sour and chloride service where the application qualifies, with material traceability backing project qualification. Confirm the exact service envelope, H₂S partial pressure, chloride level, and temperature, and the specific environmental limits in the standard against your application before committing.
Do they interchange with Swagelok, Parker, or Hy-Lok fittings?
They're built as dimensional interchange and equivalent fittings, with performance backed by ASTM F1387 qualification. We don't call them "compatible" or "intermix," and every brand name mentioned belongs to its respective owner; Crestflo is not affiliated. Send us your cross-reference request and we'll map your part numbers.
Why does titanium need silver anti-galling plating on the ferrules?
Titanium galls readily, under the high local contact pressure where a ferrule bites the tube and where threads make up under torque, bare titanium-on-titanium surfaces can seize and tear. A thin silver plating on the ferrule back and threads gives a sacrificial, low-shear layer that lets the joint make up and come apart cleanly, which matters most where fittings are reassembled repeatedly or torqued hard. Crestflo offers silver anti-galling plating on request; it is the key finish decision on a titanium fitting.
What sizes are available?
Tube-OD sizes run from 1/8-inch up to 2-inch (50 mm), covering both imperial fractional and metric series, in single or double ferrule. Standard sizes span 1/8" to 1" and 6 mm to 25 mm; anything larger is made to order.
Is Titanium Gr2 magnetic?
No. Commercially pure Grade 2 titanium is non-magnetic, which, alongside its chloride immunity, is a reason to choose it where magnetic permeability matters. That non-magnetic character holds in the as-supplied condition.
Which acids should Titanium Gr2 fittings not be used in?
Avoid hydrofluoric acid entirely, HF attacks titanium aggressively. Use caution with hot or concentrated reducing acids such as hydrochloric and sulfuric unless they are dilute, inhibited, or carry an oxidizer, and avoid dry chlorine, which can ignite titanium. Grade 2 excels in oxidizing acids like nitric and in wet chlorine, hypochlorite, and seawater. Where a hot reducing acid is the governing threat, a nickel alloy such as Hastelloy C-276 or Monel 400 is the right material.
How does Titanium Gr2 compare to 254 SMO and super-duplex 2507 for fittings?
All three are specified for chloride and seawater service, but they get there differently. Titanium Gr2 is immune to chloride pitting and SCC via its oxide film and is the lightest, but it is modest in strength and poor in reducing acids. 254 SMO (a 6-moly super-austenitic) and super-duplex 2507 resist chlorides through alloying; 2507 roughly doubles titanium's strength and is the pick where strength-per-wall matters, while 254 SMO is non-magnetic and weld-friendly. For the harshest seawater and wet-chlorine duty, or where weight is critical, titanium wins; for high-pressure thin-wall chloride runs, 2507; for reducing-acid exposure, a nickel alloy.
Are single and double ferrule versions both offered?
Yes. Both single-ferrule and double (twin) ferrule designs are available, with hardened or non-hardened ferrules supplied depending on what's required. Because titanium galls, silver anti-galling plating is offered on request where repeated make-up or high torque is expected.
What material certification comes with the fittings?
Standard practice is an EN 10204 MTC 3.1 certificate, with 3.2 available on request. Every part gets a heat/lot number stamped on it, and PMI confirms the alloy is genuinely R50400, which matters on titanium, where a stainless substitute looks similar once machined but has none of the chloride immunity.
Are these made in the USA?
Crestflo manufactures for the US market. Standard product comes from India, though US or European melt is available on request, complete with full material traceability. It's engineered for a US drop-in fit and ships in 6-8 weeks. For TAA and origin specifics, see the US-origin compliance page.
What thread and end connections are available?
Tube-OD compression ends come standard, alongside NPT, NPTF, BSPT, BSPP, and ISO parallel threads. JIC 37° (per ISO 8434-2) and SAE ORB fittings round out the lineup, and weld ends are available in socket, butt, and orbital styles. National, international, or custom thread, they're all supported.
What is the minimum order and lead time?
Small minimum order quantities apply, and lead time for US orders runs 6 to 8 weeks. Standard items ship from ready stock; specials are made to order. Private-label and custom or made-to-print options are also available.
Related Pages
- Titanium Grade 2 alloy grade & corrosion data
- Titanium Gr2 instrumentation valves
- Titanium Gr2 tubing
- Titanium vs stainless steel · 254 SMO · Super Duplex 2507 · Super Duplex 2507 tube fittings · Hastelloy C-276 · Monel 400
- Tube-fittings product hub · single-ferrule fittings · double-ferrule fittings · ASTM F1387 standard
- Desalination & water · offshore & marine · chemical processing