Gr12 Titanium Rod Description
Gr12 Titanium Rod Introduction
Gr12 titanium rod is a near-alpha corrosion-resistant titanium alloy. It contains a small amount of molybdenum and nickel and is produced after melting, forging, rolling, and heat treatment. It is widely used in industrial corrosion-resistant environments.
USA grade: ASTM grade 12
Rod form: Round, square, and hexagonal rods, manufactured by processes such as hot rolling, forging, and cold drawing, are among the most basic titanium profiles.
Technical Specifications
Regular Specification
| Items | Type | Specification range |
| Diameter range(φ, mm) | Regular stock | φ8-φ200 mm |
| Small size(cold drawn/ground) | φ4-φ30 mm | |
| Big size(forged rod) | φ100-φ300 mm | |
| Cross-sectional shapes | Round rod | Regular specification |
| Square rod/hexagonal rod | 6×6-80×80 mm(customized), S6-S80 | |
| Imperial sizes | 1/4″ (6.35 mm), 1/2″ (12.7 mm), 1″ (25.4 mm), 2″ (50.8 mm), 3″ (76.2 mm) | |
| Length(mm) | Annealed state(M) | 300-3000 mm(mainly random lengths) |
| Hot working/cold working(R/Y) | 300-6000 mm | |
| Fixed length/multiple length | Within the above range, length tolerance is +15 mm; each cut adds approximately 5 mm cutting allowance. |
Supply Specification
| Code | Name | Process | Application |
| M | Annealed state | After hot rolling/forging, heat treating at 680-730°C, followed by air cooling | Standard condition: stable properties, good ductility, excellent corrosion resistance |
| R | Hot working | Delivered after hot rolling/forging, without annealing | Rough billet, heat treatment required, low ductility requirement |
| Y | Cold working | Cold rolled/cold drawn, without annealing | Rarely used; small sizes only, custom production |
Surface Specification
| Surface type | Common name | Process | Surface appearance | Application |
| Black forged hot-rolled surface | Black, rough rod | Only forged rolled, without process | Dark gray, oxide scale surface | Machining billet, for turning |
| Turned surface | Turned rough-machined | Lathe turned, remove the skin | Bright, slight turning marks | General machine parts |
| Ground surface | Ground bright rod | Turned and fine ground | Mirror finished, low roughness | Precision parts, shafts, molds |
Chemical Specification
| Elements | Ti(balance) | O | Mo | Ni | Fe | C | N | H | Impurities |
| Max. content(%) | Basic element | ≤0.25 | 0.2-0.4 | 0.6-0.9 | ≤0.30 | ≤0.08 | ≤0.03 | ≤0.015 | ≤0.40 |
Physical Specification
| Basic performance | Required value | Physical | Value |
| Tensile strength | ≥480 MPa | Density | 4.51 g/cm³ |
| Yield strength | ≥345 MPa | Melt point | ~1668 ℃ |
| Elongation | ≥18% | – | – |
International Standard
| Standard system | Grade | Standard |
| China(GB) | TA10 | GB/T 2965, GB/T 3620.1 |
| USA(ASTM) | Grade 12(Gr12) | ASTM B348 |
| Europe(EN) | Ti-0.3Mo-0.8Ni | ISO 5832-4 |
| Germany(DIN) | Ti Ni0.8Mo0.3 | DIN 17861 |
Titanium grades comparison: Gr1 vs Gr2 vs Gr4 vs Gr5 vs Gr12
| Items | Gr1 | Gr2 | Gr4 | Gr12 | Gr5 |
| Types | Commercially pure titanium | Commercially pure titanium | High-strength pure titanium | Corrosion-resistant titanium alloy | High-strength titanium alloy |
| Main features | High purity, soft, and excellent ductility. | Well-balanced, most commonly used | High strength, low ductility | Normal strength, high corrosion resistance | Highest strength, wear-resistant |
| Strength | Low | Medium low | High | Medium | Highest |
| Corrosion resistance | Good | Excellent | Normal | Best | Normal |
| Weldability | Excellent | Excellent | Good | Good | Normal |
| Machinability | Good-machinability | Good-machinability | Relatively hard | Good-machinability | Hard |
| Application | Deep drawing, pipe fittings, corrosion-resistant parts | General chemical and corrosion-resistant equipment | Structural parts, wear-resistant parts | Chemical, seawater, desulfurization, chlor-alkali | Aerospace, shafts, high-strength parts |
| Core position | Soft, good ductility | Corrosion resistance | High strength, low corrosion resistance | For highly corrosive conditions | High-strength construction |
Features & Advantages
- Excellent corrosion resistance (resistant to chloride ions and acidic media, Ti-0.3Mo-0.8Ni alloy).Gr12 titanium rod also has good corrosion resistance in reducing and oxidizing condition, suitable for chloride and chemical media.
- Improve resistance to crevice and pitting corrosion, especially in seawater condition.Compare wit commercially pure titanium, Gr12 is exhibits stronger to crevice and pitting corrosion. Making it suitable for severe corrosive service condition.
- Excellent physical performance, medium strength, stable performance.The strength higher than pure titanium, and keep a good ductility, suitable for structural use.
- Excellent weldability, inert gas shielding and stable connections.It can be welded by TIG and other methods, stable weld joints, stable for complex structures.
- High temperature performance, medium temperature stability, oxidation, long-term service.It has excellent stability at medium temperature, and suitable for heat exchangers and thermal equipment.
- Good resistance to hydrogen embrittlement in chemical equipment application.After Ni addition reduces hydrogen embrittlement risk and improves safety.
- Good machining ability.Compared with high strength titanium alloy, Gr12 is easy to machine, suitable for pipe fittings, plates and rod parts.
- Suitable for severe chemical and marine condition, chemical equipment, seawater system, corrosion-resistant structures.
- Widely used in heat exchangers, condensers, seawater desalination system, and chemical anti-corrosion equipment.
Performance Solution
Problem: Stainless steel is susceptible to pitting and crevice corrosion in chloride condition, which can result in equipment failure.
Solution: Gr12 titanium rod offers excellent resistance to pitting and crevice corrosion, enabling a long-term reliable operation in chloride-containing condition.
Problem: Normal metals suffer severe corrosion in reducing acids such as sulfuric acid and hydrochloric acid, resulting in short service life.
Solution: Gr12 titanium, contented Mo and Ni, exhibits enhanced corrosion resistance in reducing media, significantly extending service life.
Problem: Metals are susceptible to uniform corrosion in complex chemical condition, leading to higher maintenance costs.
Solution: Gr12 titanium rod has excellent general corrosion resistance, minimizing corrosion loss and reducing maintenance requirements.
Problem: The metals in seawater condition are easy to corrosion and localized degradation, affecting structural safety.
Solution: Gr12 titanium has excellent resistance to seawater corrosion, suitable for marine engineering application.
Problem: The metal in hydrogen containing condition are susceptible to embrittlement, resulting in cracking.
Solution: Gr12 titanium rod has excellent resistance to hydrogen embrittlement, reduced cracking risk.
Problem: During welding, the material may introduce detects or degrade material properties.
Solution: Gr12 titanium has excellent weldability and forms high quality joints under inert gas shielding conditions.
Problem: Materials experience rapid performance degradation in long term corrosize service condition, leading to frequent replacement.
Solution: Gr12 titanium rod has stable corrosion resistance and good long term service performance, minimizing replacement frequency.
Problem: Some high corrosion resistant materials are difficult to machine, increasing manufacturing cost and lead time.
Solution: Gr12 titanium alloy combines good corrosion resistance with excellent machinability improving production efficiency.
Application
- Chemical and petrochemical industry: (corrosion-resistant equipment, reactors, heat exchangers, piping system) Gr12 titanium rods are widely used in high corrosive media such as sulfuric acid, hydrochloric acid, and chloride-containing condition for equipment manufacturing.
- Marine engineering: (seawater desalination, seawater piping systems, chloride corrosion resistance, marine structures) Suitable for seawater systems, condensers, and marine equipment, offering excellent resistance to seawater corrosion and crevice corrosion.
- Energy & power industry: (nuclear power equipment, heat exchange systems, high-temperature corrosive environments) Used in nuclear power plants and heat exchange systems, maintaining stable performance under complex corrosive and moderate-temperature conditions.
- Environmental protection & wastewater treatment: (desulfurization & denitrification, wastewater treatment equipment, corrosion-resistant structures) Suitable for flue gas treatment and wastewater treatment systems, especially for key corrosion-resistant components.
- Pharmaceutical & food Industry: (high cleanliness, corrosion resistance, non-contamination, equipment safety) Used in equipment and piping systems requiring high purity, corrosion resistance, and contamination-free performance.
- High-end manufacturing & equipment industry: (precision components, corrosion-resistant structures, long-life equipment) Applied in critical components requiring high reliability, corrosion resistance, and long-term stable operation.
Custom Processing Capabilities
1) Production Line Strength
Baoji Titanium Valley Ti-Ni-Zr Material Processing Co., Ltd. has invested a total of $36.2 million in high-end strip and foil production, establishing an advanced production line for titanium, nickel, zirconium and their alloy strips and foils in the world.
The production line specializes in the stable rolling of ultra-thin, wide-width strips, overcoming critical industry challenges such as springback, difficult shape control and inconsistent material properties. We achieved stable mass production of high-end titanium foil.
With an annual capacity of 3,000 tons, the production line is expected to realize an annual output value of $116 million, supporting large-volume supply demands from high-end customers in aerospace, electronics, new energy, chemical engineering and other industries..
2) The production line is equipped with advanced equipment in the world which can ensure high precision and stability for every coil of strip and foil:
A.750mm 20-high precision rolling mill: enable precision rolling of ultra-thin, wide-width strips
B.Continuous cleaning and annealing line: ensure surface cleanliness and uniform microstructure
C.Vacuum furnace: improve stability of material properties
D.Leveler: enhance strip shape and flatness
E.Slitting line: high-precision slitting suitable for ultra-thin materials
F.Sanding line: optimize surface consistency and texture.
Through precision equipment and optimized processes, the production line has successfully broken through seven core technical barriers for strip and foil products, including surface color difference control, thickness tolerance control, uniform annealing structure, high-precision slitting, and high-performance cleaning processes.
3) We provide one-stop custom processing from raw materials to finished products, ensuring stable supply of high-precision, high-performance products to our customers.
A.Materials: Pure titanium, titanium alloys, zirconium, nickel
Specifications: Thickness 0.02–1.0mm, width 350–670mm, customize according to requirement.
B.Surface treatment: Cleaning, sanding, degreasing, annealing; available in bright, matte and other function surface.
C.Dimensional & flatness control: Precise control of thickness, tolerances and surface flatness
D.Slitting & cutting to length: Suitable for ultra-thin wide strips with high yield and stable quality
E.Mass delivery: Annual capacity of 3,000 tons to meet large-volume, high-standard custom orders