Corrosion Resistant Gr7 Titanium Alloy Bars
Length: Customized (typically 1000–5000 mm)
Surface: Pickled, polished, or bright finished
Standards: ASTM B348
Grade: Gr7 (Ti-Pd)
Basic Composition: Ti-Pd(0.12-0.25%)
Description
Technical Parameters
Products Description
Grade 7 is a palladium-alloyed α-titanium bar designed for extreme corrosion resistance in aggressive chemical, marine, and high chloride environments. It retains the good mechanical and fabrication properties of pure titanium. It delivers far better resistance to reducing acids, chlorides, crevice, and pitting corrosion. Gr7 titanium bars are the perfect choice for critical components in severe corrosion where stainless steel or pure titanium fails.
Chemical Composition
|
Element |
Ti |
Pd |
Fe |
C |
N |
H |
O |
Others |
|
Content(%) |
Balance |
0.12–0.25 |
≤0.30 |
≤0.08 |
≤0.03 |
≤0.015 |
≤0.25 |
≤0.10 |
Mechanical & Physical Properties
|
Property |
Value |
|
Density |
4.51 g/cm³ |
|
Tensile Strength |
≥345 MPa |
|
Yield Strength |
≥275 MPa |
|
Elongation |
≥20% |
|
Thermal Conductivity |
21.8 W/m·K |
|
Melting Point |
~1660°C |
|
Operating Temp |
Up to 400°C (long term) |
Selection Guide for Titanium Grades
vs. Gr2: Gr7 has 10–100× lower corrosion rate in reducing acids and better crevice corrosion resistance.
vs. Gr12: Gr7 excels in wet chlorine or hypochlorite; Gr12 is better for high temperature chloride environments.
vs. Gr5: Superior corrosion resistance; lower strength, better weldability
Gr7: Pd acts as a cathodic modifier, lowering hydrogen overpotential and accelerating repassivation of TiO₂ films in low oxygen or reducing environments. This resists crevice, pitting, and general corrosion where Gr2 fails.
Quality & Packaging
Ultrasonic inspection, chemical analysis, mechanical testing, and corrosion resistance verification.
EN 10204 3.1, ISO 9001, and material test reports (MTR) available.
Moisture proof wrapping + wooden cases for export.
Why Choose Us?
Ruihang Group, as a direct titanium factory supplier and no middleman costs, is a reliable and trustful manufacturer in China with more than13 years experience in titanium prodution. The quality assurance is verified by the international standard and the third-party testing center. We are always looking forward to cooperating with you to have a plant tour.
1.Production Equipment & Capacity
Mills: 550mt, 450mt, 350mt (1 set each); plus 9 resistance furnaces, 2 annealing furnaces, 2 skew roll straightening machines.
Monthly capacity for titanium bars: 500 metric tons.
2.Location Advantage
Based in Baoji ("China's Titanium Valley") with concentrated titanium industry and complete industrial chain.We are specilized in titanium products with more than 13 years experiences.
3. After-sale Service
Competitive price & reliable after-sales service guaranteed by industrial cluster advantage, high production efficiency and yield rate.
4.Quality Assurance
Certified with EN ISO 9001:2015 & EN 9100:2018 by French BV in 2025.
In-house testing center with 10+ advanced instruments.
We can also supply the third-party testing center for quality assurrance.
Additional Information
1. Payment Terms
T/T: 30% deposit upon order confirmation; balance 70% before shipment / before B/L release.
L/C: Irrevocable sight L/C acceptable for bulk orders.
Others: Credit Card,Paypal,Western Union,Moneygram,etc
2. Shipment
Lead time: to be confirmed according to the order.
Transport:
Small quantity: Express (CR express/DHL / FedEx / UPS / TNT)
Bulk: By sea / by air
3. Packing
Inner: Anti-rust paper + vacuum packaging + foam protection.
Outer: Plywood / wooden case.
Markings: Product grade, quantity, gross weight, net weight, country of origin, "Fragile", "Handle with care", "Keep dry".
Suitable for long-distance ocean / air transportation, shockproof, moistureproof, anti-corrosion.
FAQ about Corrosion Resistant Gr7 Titanium Alloy Bars
Lower density (4.51 vs. ~8.0 g/cm³) → lighter components
Lower cost than Hastelloy/Inconel in many cases
Superior resistance to chlorides and wet chlorine
Continuous: –50°C to 400°C
Intermittent: Up to 540°C
Excellent low-temperature toughness
Higher cost than Gr2 (due to Pd)
Not recommended for HF or hot, concentrated NaOH (>50%, >100°C)
Lower density (4.51 vs. ~8.0 g/cm³) → lighter components
Lower cost than Hastelloy/Inconel in many cases
Superior resistance to chlorides and wet chlorine
Choose Gr7 when:
Service involves reducing acids (HCl, H₂SO₄) or chloride-rich hot environments
Crevice corrosion is a risk (gaskets, flanges, heat exchanger gaps)
Longer service life and lower maintenance are prioritized over initial cost
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