ARK Stainless Inc. is a trusted manufacturer and supplier of high-performance Titanium Buttweld Fittings, available in various grades including Gr 1, Gr 2, Gr 5, and Gr 9. These fittings are highly regarded for their superior mechanical strength, excellent corrosion resistance, and lightweight properties, making them ideal for demanding environments like marine, chemical, aerospace, and petrochemical industries. Their exceptional resistance to seawater, chlorides, and oxidizing media makes them a preferred choice for critical applications.
Our Titanium fittings, available in Gr 1, Gr 2, Gr 5, and Gr 9, are crafted from premium-grade alloys that provide outstanding formability and weldability. These fittings are designed to withstand high-stress environments and are ideal for applications that require superior strength and flexibility. They are commonly used in piping systems to change direction, reduce pipe sizes, or connect different components. The fittings include elbows, tees, unions, couplings, caps, plugs, bushings, and expansion joints, offering flexibility in diverse piping needs.
Titanium Gr 1 and Gr 2 fittings have excellent properties such as high tensile strength, superior flexibility, and excellent weldability. Additionally, they demonstrate remarkable resistance to rust, oxidation, pitting, and stress cracking. Gr 5 and Gr 9, known for their added strength and resistance to high-temperature environments, are ideal for high-stress and high-temperature applications. These fittings are available in various forms, including Seamless, Welded, Fabricated, and ERW, and are designed to meet international standards such as ASTM B366 / ASME SB366 and dimensional norms like ASME B16.9, B16.28, and MSS-SP-43.
| Grade | C | Fe | H | N | O | Al | V | Ti |
|---|---|---|---|---|---|---|---|---|
| Titanium Gr 1 | 0.08 max | 0.20 max | 0.015 max | 0.03 max | 0.18 max | — | — | Balance |
| Titanium Gr 2 | 0.08 max | 0.30 max | 0.015 max | 0.03 max | 0.25 max | — | — | Balance |
| Titanium Gr 5 | 0.05 max | 0.40 max | 0.0125 max | 0.05 max | 0.20 max | 5.50–6.75 | 3.50–4.50 | Balance |
| Titanium Gr 9 | 0.08 max | 0.25 max | 0.015 max | 0.03 max | 0.15 max | 2.50–3.50 | — | Balance |
| Grade | Tensile Strength | Yield Strength | Elongation (%) | Hardness (Brinell) | Hardness (Rockwell) | Density | Melting Point |
|---|---|---|---|---|---|---|---|
| Titanium Gr 1 | 240 MPa (min) | 170 MPa (min) | 24% | 70–90 | RB 70 | 4.51 g/cm³ | 1660°C (3020°F) |
| Titanium Gr 2 | 345 MPa (min) | 275 MPa (min) | 20% | 70–100 | RB 80 | 4.51 g/cm³ | 1665°C (3029°F) |
| Titanium Gr 5 | 895 MPa (min) | 828 MPa (min) | 10% | 334 | RC 36 | 4.43 g/cm³ | 1604°C (2919°F) |
| Titanium Gr 9 | 620 MPa (min) | 483 MPa (min) | 15% | 160–200 | RC 20–25 | 4.48 g/cm³ | 1650°C (3002°F) |
Titanium Gr 1 Pipes & Tubes are highly valued for their exceptional corrosion resistance, excellent weldability, and high impact toughness, making them suitable for a broad range of demanding applications. These pipes and tubes are widely used in marine industries, chemical processing, desalination plants, medical equipment, aerospace, and electroplating systems due to their lightweight structure and outstanding performance in corrosive environments.
These pipes and tubes are primarily manufactured in seamless and welded forms, available in various shapes including round, square, and rectangular. With thicknesses ranging from 0.5mm to 20mm and diameters from 6mm to 250mm, they are supplied in single random, double random, or custom-cut lengths as per project needs. Surface finish options include pickled, polished, and annealed, ensuring suitability across diverse industry standards and applications.
To guarantee premium quality and long service life, Titanium Gr 1 Pipes & Tubes undergo extensive testing such as mechanical testing, chemical analysis, hardness testing, flattening and flaring tests, PMI testing, and hydrostatic testing. Certified to international standards including ASTM B861 / B862 / B338, all our titanium pipes and tubes are delivered with proper documentation and test certificates. We also offer secure and customized packaging solutions—such as wooden boxes, steel strip bundling, or plastic wrapping—to ensure safe transportation and handling.
| STANDARD | WERKSTOFF NR. | UNS |
|---|---|---|
| Titanium Gr 1 | 3.7025 | R50250 |
Titanium Gr 2 Pipes & Tubes are extensively used in industrial applications that demand superior corrosion resistance, excellent ductility, and moderate strength. These pipes and tubes are ideal for industries such as chemical processing, marine, power generation, desalination, heat exchangers, and medical equipment manufacturing. Titanium Grade 2, being commercially pure, provides excellent weldability and formability, making it suitable for a broad range of fabrication needs.
These pipes and tubes exhibit outstanding resistance to oxidizing media and chloride solutions, making them reliable in aggressive environments such as seawater systems and chlorine processing units. Due to their low density and high strength-to-weight ratio, they are also widely used in aerospace and automotive sectors.
To ensure high-quality performance, Titanium Gr 2 Pipes & Tubes are subjected to comprehensive quality checks such as chemical composition analysis, mechanical testing, hardness tests, flaring and flattening tests, PMI (Positive Material Identification), macro and micro structural evaluation, and hydrostatic testing. All products comply with international standards and are delivered in secure, customized packaging such as wooden crates or protective bundles, depending on customer requirements.
| STANDARD | WERKSTOFF NR. | UNS |
|---|---|---|
| Titanium Gr 2 | 3.7035 | R50400 |
Titanium Gr 5 Pipes & Tubes are widely recognized for their exceptional strength-to-weight ratio, excellent corrosion resistance, and high thermal stability, making them a go-to material for demanding applications in aerospace, marine, offshore drilling, automotive, power generation, and chemical processing industries. These pipes and tubes are engineered to perform effectively in both high-temperature and high-pressure environments without compromising on performance.
With outstanding resistance to oxidation, stress corrosion cracking, and fatigue, Titanium Gr 5 Pipes & Tubes ensure long-term reliability in aggressive service conditions. Their high tensile strength and lightweight characteristics also make them ideal for weight-sensitive and high-load applications in structural and fluid transport systems.
Each Titanium Grade 5 pipe and tube batch is rigorously tested to meet global quality benchmarks, including mechanical testing, hydrostatic testing, flaring and flattening tests, PMI testing, micro and macro analysis, and ultrasonic inspections. These pipes and tubes comply with international standards and are available in various sizes, finishes, and customized lengths to suit specific project requirements.
| STANDARD | WERKSTOFF NR. | UNS |
|---|---|---|
| Titanium Gr 5 | 3.7165 | R56400 |
Titanium Gr 9 Pipes & Tubes are known for their unique combination of moderate strength, superior corrosion resistance, and excellent weldability, making them ideal for use in high-performance and weight-sensitive applications. These pipes and tubes perform reliably in both oxidizing and mildly reducing environments and are especially suitable for marine, chemical processing, aerospace, and medical sectors.
With a high strength-to-weight ratio, excellent fatigue resistance, and good cold-forming characteristics, Titanium Gr 9 Pipes & Tubes are used in critical systems such as airframe structures, hydraulic tubing, exhaust ducts, condenser tubes, and offshore applications. They are capable of withstanding acidic and chloride-rich conditions, ensuring long service life with minimal maintenance.
To meet international standards and client-specific demands, each batch of Titanium Grade 9 Pipes & Tubes undergoes thorough quality testing including chemical composition analysis, mechanical property verification, PMI testing, ultrasonic testing, hydrostatic pressure testing, and both macro and microstructural examinations. These tests ensure consistent quality and compliance across various industrial applications.
| STANDARD | WERKSTOFF NR. | UNS |
|---|---|---|
| Titanium Gr 9 | 3.7195 | R56320 |
