Titanium Grade 12 Pipes consist of titanium alloy pipes that have about 0.3% molybdenum and 0.8% nickel content, and thus offer increased corrosion resistance and strength compared to commercially pure titanium. Conforming to ASTM B338 / ASME SB-338 standards they are appropriate for use in oxidizing and mildly reducing atmospheres. They are highly resistant to crevice corrosion, stress corrosion cracking and chlorine-containing media. In addition, they can be welded and formed easily. Titanium Grade 12 Pipes are extensively used in heat exchangers, chemical processing apparatus, marine applications, desalination facilities, and power generating plants. Titanium Grade 12 Tubes manufactured by USA Piping Solution are known for their high quality, accurate production, and on-time worldwide delivery.
Specifications of Titanium Grade 12 Tube
| Parameter | Specification Details |
|---|---|
| UNS Number | R53400 |
| Nominal Composition | Ti-0.3Mo-0.8Ni |
| Applicable Standards | ASTM B338 / ASME SB338 (Heat Exchanger & Condenser Tubes), ASTM B861 / ASME SB-861 (seamless pipe), ASTM B862 / ASME SB-862 (welded pipe) |
| Condition | Annealed |
| Tube / Pipe Types | Seamless, ERW, EFW, Welded, Fabricated |
| Seamless Tube Size Range | 3.18 mm OD (1/8 in) to 101.6 mm OD (4 in) |
| Welded Tube Size Range | 6.35 mm OD to 152 mm OD |
| Wall Thickness Range | 0.020″ – 0.220″ (Gauge: 10 SWG, 12 SWG, 14 SWG, 16 SWG, 18 SWG, 20 SWG; special wall thicknesses available) |
| Tube Lengths | Single Random, Double Random, Standard & Cut Lengths |
| Available Forms | Round, coiled, U-bend, straight length, condenser and heat exchanger tube |
| End Connections | Plain End, Beveled End, Threaded |
| Surface Finishes | Polished (Electro & Commercial), AP (Annealed & Pickled), BA (Bright & Annealed), Mill Finish (MF) |
| Specialized Products | Capillary Tubes, Custom/Odd Sizes, Heat Exchanger & Condenser Tubes |
| Value-Added Services | Custom Draw & Expansion (size & length), Polishing, Bending, Machining, Annealing & Pickling |
| Applications | Heat exchangers, condensers, evaporators, process cooling |
| Tests per B338 | Flattening, flaring, hydrostatic or non-destructive electric test |
| ASME Code Status | SB-338 Grade 12 listed in BPVC Section II Part D; separate allowable stresses for seamless and welded |
| Pipe / Tube Marking | Standard, Grade, OD, Thickness, Length, Heat No. (or custom marking as requested) |
| Test Certificates & Reports | • EN 10204 3.1; 3.2 and Third-Party Inspection on request • Manufacturer Test Certificate • Govt. Approved Laboratory Test Certificate |
Types of Titanium Grade 12 Tube
Titanium Grade 12 'U' Shaped tubing
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Titanium Grade 12 Alloy Square Tube (Radius Corners)
Titanium Grade 12 Boiler Tube
Titanium Grade 12 Capillary Tube
Titanium Grade 12 Coiled Tubing
Titanium Grade 12 Furnace Tube
Titanium Grade 12 Gas Tube Ar 15 supplier
Titanium Grade 12 Gas Tube
Titanium Grade 12 Heat Exchanger Tubes
Titanium Grade 12 Rectangle Tube
Titanium Grade 12 Seamless tubing
Titanium Grade 12 Square Tube
Titanium Grade 12 Thin Wall tube
Titanium Grade 12 tubing
Titanium Grade 12 Welded Tubing
Applications & Industrial Uses of Titanium Grade 12 Tube
- Chemical Processing Equipment
- Seawater Heat Exchangers
- Desalination Plants
- Flue Gas Desulfurization (FGD) Systems
- Hydrometallurgical Processing Plants
- Pulp and Paper Bleaching Plants
- Offshore Oil & Gas Platforms
- Power Plant Condensers and Cooling Systems
Frequently Asked Questions
1. What are Titanium Grade 12 Tubes?
Titanium Grade 12 Tubes are titanium alloy tubes containing nickel and molybdenum, offering improved corrosion resistance, strength, and durability for demanding industrial applications.
2. What is the difference between Titanium Grade 2 and Grade 12 Tubes?
Titanium Grade 2 is commercially pure titanium, while Grade 12 contains 0.8% nickel and 0.3% molybdenum, providing higher strength and better resistance to crevice corrosion and reducing acids.
3. Can Titanium Grade 12 Tubes be welded?
Yes. Titanium Grade 12 Tubes have excellent weldability and can be welded using standard titanium welding procedures with proper shielding.
4. Why does Titanium Grade 12 contain nickel and molybdenum?
Nickel and molybdenum are added to improve corrosion resistance, increase strength, and enhance performance in reducing and chloride-containing environments.
5. Are Titanium Grade 12 Tubes suitable for heat exchangers?
Yes. Titanium Grade 12 Tubes are widely used in heat exchangers because of their excellent corrosion resistance, strength, and long service life.
6. Is Titanium Grade 12 cheaper than Grade 7?
Yes. Grade 7 contains palladium, making it more expensive. Grade 12 uses molybdenum and nickel to provide similar crevice corrosion resistance at a lower cost, making it a cost-effective alternative when Grade 2 is not suitable.
7. What is the maximum service temperature for Titanium Grade 12 tube?
Titanium Grade 12 performs well at elevated temperatures, especially in hot brine and FGD systems. The maximum service temperature should be determined using the allowable stress values in ASME BPVC Section II Part D rather than a fixed temperature limit.