How to Identify Fake Grade 1 Titanium Tube
May 22, 2026
Method 1: Check the Color
| Material | Color | Verdict |
|---|---|---|
| Genuine Gr.1 Titanium | Gray-white, slightly dull, not shiny | ✅ Genuine |
| Stainless Steel | Bright silver, highly reflective | ❌ Fake (stainless steel) |
| Aluminum | Very bright silver, much lighter in weight | ❌ Fake (aluminum) |
Genuine titanium tube is usually pickled or annealed, resulting in a uniform gray-white finish. If the tube is extremely shiny, it is likely stainless steel.
Method 2: Weigh It
Titanium density is 4.51 g/cm³. Stainless steel is 7.9 g/cm³. Aluminum is 2.7 g/cm³.
How to test:
Cut a small piece of the tube (or use a full length if possible)
Weigh it precisely
Calculate density = weight / volume
| Material | Density (g/cm³) | Weight compared to titanium |
|---|---|---|
| Gr.1 Titanium | 4.51 | Baseline |
| Stainless steel | 7.9 | 75% heavier |
| Aluminum | 2.7 | 40% lighter |
Pick up a stainless steel tube and a titanium tube of the same size. Titanium is noticeably lighter – about half the weight of stainless steel.
Method 3: Spark Test (Grinding Test)
When grinding titanium vs stainless steel or aluminum, the spark pattern is different.
| Material | Spark Pattern | Verdict |
|---|---|---|
| Gr.1 Titanium | Bright white sparks, very few, short tail | ✅ Genuine |
| Stainless steel | Orange-red sparks, many, long tail | ❌ Fake |
| Aluminum | No sparks – just smears | ❌ Fake |
How to do it: Use a grinder on the tube surface. Titanium produces distinct bright white sparks. Stainless steel produces orange-red sparks. Aluminum produces no sparks.
GNEE Titanium Tube – Product Range
| Category | Details |
|---|---|
| Standards | ASTM B338, B861, B862 / ASME SB338, SB861, SB862 |
| Grades | Gr.1 (UNS R50250), Gr.2 (UNS R50400), Gr.7 (UNS R52400), Gr.9 (UNS R56320), Gr.12 (UNS R53400) |
| Type | Seamless / Welded (TIG) / ERW / Fabricated |
| OD Range | Seamless: 1.0 mm – 508 mm / Welded: 6.0 mm – 1219 mm |
| Wall Thickness | 0.3 mm – 50 mm |
| Thin Wall (Heat Exchanger) | 0.5 / 0.7 / 0.9 / 1.0 / 1.2 / 1.5 mm |
| Length | 3 m – 30 m (custom available) |
| Shape | Round / Square / Rectangular / U-bent / Coiled |
| Surface Finish | AP (Annealed & Pickled) / BA (Bright Annealed) / MP (Mechanical Polish) / EP (Electro Polish) |
| End Finish | Plain End / Beveled End / Threaded |
Common Stock Sizes – Ready to Ship
| OD | Wall Thickness | Type |
|---|---|---|
| 12.7 mm (1/2") | 0.7 / 0.9 / 1.0 / 1.2 mm | Seamless / Welded |
| 19.0 mm (3/4") | 0.7 / 0.9 / 1.0 / 1.2 / 1.5 mm | Seamless / Welded |
| 25.4 mm (1") | 0.7 / 0.9 / 1.0 / 1.2 / 1.5 mm | Seamless / Welded |
| 31.8 mm (1-1/4") | 0.9 / 1.0 / 1.2 / 1.5 mm | Seamless |
| 38.1 mm (1-1/2") | 1.0 / 1.2 / 1.5 mm | Seamless |
| 50.8 mm (2") | 1.0 / 1.2 / 1.5 mm | Seamless |
Grade 1 Titanium Tube Chemical Composition
| Element | Max % | Actual (GNEE Typical) |
|---|---|---|
| Oxygen (O) | 0.18 | 0.12 – 0.15 |
| Iron (Fe) | 0.20 | 0.08 – 0.12 |
| Carbon (C) | 0.08 | 0.01 – 0.03 |
| Nitrogen (N) | 0.03 | 0.01 – 0.02 |
| Hydrogen (H) | 0.015 | 0.002 – 0.005 |
| Titanium (Ti) | Balance | Balance |
GNEE delivers titanium tube with oxygen and iron consistently below ASTM limits, ensuring superior ductility and formability.
Grade 1 Titanium Mechanical Properties
| Property | ASTM Requirement | GNEE Typical |
|---|---|---|
| Tensile Strength (min) | ≥ 240 MPa | 260 – 300 MPa |
| Yield Strength (0.2% offset) | 170 – 310 MPa | 180 – 240 MPa |
| Elongation (min) | ≥ 24% | 28 – 32% |
| Hardness, Brinell | ≤ 120 HB | 100 – 115 HB |
SGS Certification
GNEE is an SGS certified manufacturer. SGS third-party inspection is available for every shipment upon request. Test reports are provided with full traceability from melt to final tube.
Inspection & Testing Capabilities
| Test | Purpose | GNEE Capability |
|---|---|---|
| Eddy Current Testing (ECT) | Surface flaw detection for welded tubes | 100% |
| Ultrasonic Testing (UT) | Internal flaw detection for seamless tubes | 100% |
| Hydrostatic Test | Pressure integrity | 100% |
| Flattening Test | Ductility verification | Per ASTM B338 |
| Flaring Test | Expansion capability | Per ASTM B338 |
| Tensile Test | Strength and elongation | Per heat |
| Chemical Analysis | Composition verification | Per heat |
| PMI Test | Grade confirmation (UNS R50250) | 100% |
All tests are performed in-house or by third-party labs (SGS, BV) as required.
Packaging
Each Gr.1 titanium tube is individually wrapped in plastic film or VCI paper to prevent moisture and scratches. Both ends are sealed with plastic caps to keep out debris. Tubes are bundled with steel straps and protective padding, then packed in export-standard plywood wooden boxes for seaworthy delivery. Labels with grade, heat number, size, and quantity are attached to each bundle and box. Custom packaging is available upon request.
Factory Equipment
GNEE operates cold pilger mills for seamless tube production, TIG welding lines for welded tube, vacuum annealing furnaces for heat treatment, and straightening machines for dimensional accuracy. For quality control, we have eddy current testers, ultrasonic testers, and hydrostatic testing equipment. U-bending machines are available for heat exchanger tube forming.
