What are Gr1 titanium pipes?
Gr1 titanium pipes are high-performance products manufactured from unalloyed titanium with excellent corrosion resistance and formability. These titanium alloy gr.1 tube products are supplied in both seamless and welded forms according to ASTM B338, ASTM B861, and ASME SB861 standards.
gr1 titanium tube is widely used in heat exchangers, condensers, chemical processing equipment, marine systems, and aerospace applications. Customized gr1 titanium tube is available to meet specific customer requirements.
Equivalent Grades – gr1 titanium pipe & tube
| Standard | Grade / UNS / W.Nr. |
|---|---|
| ASTM / ASME | Gr.1 |
| UNS | R50250 |
| Werkstoff Nr. (W.Nr.) | 3.7025 |
| DIN | 3.7025 |
| JIS | H4600 Type 1 |
Grade 1 Chemical Composition
| Element | C | Fe | H | N | O | Ti |
|---|---|---|---|---|---|---|
| Max Weight % | 0.08 | 0.20 | 0.015 | 0.03 | 0.18 | Balance |
Titanium Gr.1 Seamless Specifications
| Parameter | Range |
|---|---|
| Specification | ASTM B338, B861, B862 / ASME SB338, SB861, SB862 |
| Pipe Size (NPS) | ½" NB to 24" NB |
| Pipe Schedule | SCH10, SCH20, SCH40, STD, SCH80, SCH120, SCH160, XXS |
| Tube OD | 1 mm to 254 mm |
| Tube Wall Thickness | 0.1 mm to 20 mm |
| Type | Seamless / ERW / Welded / Fabricated |
| Form | Round, Square, Rectangular |
| Length | Single Random, Double Random, or Required Length |
| End Finish | Plain End, Beveled End, Threaded |
grade 1 titanium Mechanical Properties
| Property | Value | Unit |
|---|---|---|
| Tensile Strength, Ultimate | 240 MPa (min) | 34800 psi |
| Tensile Strength, Yield (0.2% offset) | 170-310 MPa | 24700-45000 psi |
| Elongation at Break | 24% (min) | - |
| Reduction of Area | 35% | - |
| Hardness, Brinell (grade 1 titanium hardness) | 120 | HB |
| Hardness, Rockwell B | 70 | HRB |
| Modulus of Elasticity | 105 GPa | 15200 ksi |
| Charpy Impact (V-notch) | 310 J | 229 ft-lb |
Low yield strength (170 MPa) and high elongation (24%) make titanium grade 1 the most formable titanium grade. Grade 1 titanium yield strength is ideal for cold bending and deep drawing.
titanium grade 1 density
| Property | Metric | English |
|---|---|---|
| Density (titanium grade 1 density) | 4.51 g/cm³ | 0.163 lb/in³ |
gr1 titanium tube uses
| Industry | Typical Application |
|---|---|
| Petrochemical & Chemical | gr1 titanium reactor, process piping, vessels |
| Power Plant | gr1 titanium heat exchanger, condenser tubes |
| Marine / Offshore | Seawater cooling, grade 1 titanium anode/cathode |
| Oil & Gas | Downhole tubing, topside piping, refineries |
| Pharmaceuticals | Pure product contact surfaces |
| Pulp & Paper | Chlorine dioxide bleach lines |
| Aerospace | Lightweight hydraulic tubing |
| Medical | Medical grade 1 titanium (ASTM F67 grade 1) for implants |
FAQ
1. How does your Gr.1 pipe compare to a leading European brand?
Our gr1 titanium pipe is technically equivalent per ASTM B861 standards. Price is 15-25% lower for wholesale grade 1 titanium orders with fast delivery.
2. What are equivalent standards for your Gr.1 tube?
ASTM B338 (tube), ASTM B861 (seamless pipe), ASTM B862 (welded pipe), UNS R50250, W.Nr. 3.7025, JIS H4600 Type 1. Medical: ASTM F67 grade 1.
3. What filler metal is needed to weld Gr.1 tube?
Use AWS A5.16 ERTi-1 filler metal only. Shielding: 100% argon with back purge inside the tube. Clean surfaces with acetone before welding.
4. What are turning speeds for Gr.1 pipe on a lathe?
Use carbide tools at 20-40 m/min, feed 0.1-0.25 mm/rev, flood coolant. Never cut dry or use slow feeds – this causes work hardening.
5. What is the difference between Grade 1 and Grade 2 titanium tube?
Gr.1 has lower yield strength (170 MPa vs 275 MPa) but higher elongation (24% vs 20%). Choose gr1 titanium tube for bending and forming; choose Grade 2 for higher pressure.
6. Is Gr.1 tube suitable for heat exchanger service?
Yes. ASTM B338 Grade 1 is specifically designed for gr1 titanium heat exchanger tubes. Maximum continuous temperature: 300°C (572°F) in aqueous environments.
7. Can Gr.1 tube be used as an MMO anode substrate?
Yes. gr1 titanium MMO anode is standard for impressed current cathodic protection. Bare grade 1 titanium is used as cathode. Common OD: 12.7mm to 101.6mm.
8. What is the minimum bending radius for Gr.1 tube?
For OD/WT ratio under 20, cold bend radius is 1.5-2.0 x OD without mandrel. With mandrel and wiper die, you can achieve 1.0-1.5 x OD. Always bend in annealed condition.
9. What is the current price per kg for Gr.1 pipe?
Please contact us for current gr1 titanium price per kg. Pricing depends on quantity, size, and wall thickness. Wholesale grade 1 titanium orders receive bulk discounts. Buy gr1 titanium in bulk to get the best titanium grade 1 cost.
10. Is commercial Gr.1 pipe approved for medical implants?
No. Medical implants require ASTM F67 grade 1 (medical grade 1 titanium) with biocompatibility testing and ISO 13485 traceability.
11. Can Gr.1 titanium be deep drawn?
Yes. gr1 titanium for deep drawing is excellent. Maximum draw ratio: 2.5 without intermediate annealing, over 3.0 with interstage annealing. Ideal for reactor heads and bellows.
12. What industries use Gr.1 titanium pipes?
Petrochemical (gr1 titanium reactor), marine (grade 1 titanium anode/cathode), power (gr1 titanium heat exchanger), aerospace, pharmaceuticals, oil & gas, pulp & paper.
