Bar and Rod
Plate and Sheet
Strip
Pipe and Tube
Wire
Welding
Powder Material
Cast Products
Forged Products
Fittings
Fastening
Round Bar:
φ2–500 mm, 1–6 m length
Flat/Square Bar:
4–100 mm thickness/width
Hex Bar:
A/F 3–100 mm
Hollow Bar:
OD 20–300 mm
Sheet:
0.3–6 mm thickness
Medium Plate:
6–25 mm thickness
Heavy Plate:
25–100 mm thickness
Standard Strip:
0.05–3 mm thick,
10–600 mm wide
Precision strip:
0.01–0.5 mm thick,
tight tolerance ±0.005 mm
Foil:
0.005–0.1 mm thick
Seamless Tube:
OD 6–450 mm,
WT 1–50 mm,
1–12 m length
Welded Tube:
OD 10–600 mm,
WT 1–20 mm
Capillary Tube:
OD 1–10 mm,
WT 0.1–2 mm
Wire Form:
Cold Drawn Wire,
Bright Wire,
Spring Wire,
Fine Wire,
Ultra-fine Wire
General Diameter:
φ0.1–10 mm
Coil Weight:
50–500 kg,
customizable tolerance
Solid Wire:
φ0.8–4.0 mm
Flux-cored Wire:
φ1.2–4.0 mm
Welding Rod:
φ2.0–5.0 mm
Powder Form:
AM 3D Printing Powder,
Spherical Powder,
Gas-atomized Powder,
Water-atomized Powder
Particle Size:
10–150 μm
Sphericity:
≥90% for AM grade
Cast Ingot:
φ200–800 mm
Precision Casting:
min wall 0.5 mm
Cast Pipe:
OD 100–600 mm,
WT 10–50 mm
Forged Bar:
Φ35–500 mm
Forged Ring:
OD 200–2000 mm
Forging Weight:
1–5000 kg
Fittings Form:
Elbow, Tee, Reducer, Flange, Cap, Outlet, Lap Joint
Size range:
1/2''–24'' (DN15–DN600)
Wall thickness:
Sch10–Sch160, STD, XS, XXS
Pressure Class:
150–2500 LB
Fastening Form:
Bolt, Nut, Screw, Stud, Washer, Pin, Rivet
Metric: M3–M64
Imperial: #4–2.5''
Length: 6–500 mm
R53400 is a corrosion-resistant titanium alloy containing about 0.3% molybdenum and 0.8% nickel. This datasheet presents the material within the American (ASTM / ASME / UNS) standard system.
With small additions of molybdenum and nickel rather than precious metals, R53400 combines excellent elevated-temperature strength with excellent weldability and notably improved crevice-corrosion resistance compared with the commercially pure grades. It offers higher strength than the unalloyed titanium grades and good resistance in both oxidizing and reducing environments, approaching the performance of the palladium-bearing grades in many hot, chloride-containing or low-pH media while being considerably more economical. It is a commercially pure wrought alloy that is readily formed and welded.
Typical applications include heat exchangers, chemical-processing and pulp-and-paper equipment, marine components, geothermal and brine-handling equipment, and vessels operating in hot chloride environments.
| Property | Value | Unit |
|---|---|---|
| Density | 4.51 | g/cm³ |
| Melting point | 1660 | °C |
| Elastic modulus | 103 | GPa |
| Coefficient of thermal expansion (20–100 °C) | 8.6 | µm/m·°C |
| Thermal conductivity (20 °C) | 19 | W/m·K |
| Specific heat (20 °C) | 540 | J/kg·K |
| Structure | Alpha (hexagonal close-packed) | — |
| Element | Symbol | Min % | Max % | Role in Alloy |
|---|---|---|---|---|
| Titanium | Ti | Balance | — | Base element |
| Molybdenum | Mo | 0.20 | 0.40 | Strength; corrosion resistance |
| Nickel | Ni | 0.60 | 0.90 | Crevice-corrosion resistance |
| Iron | Fe | — | 0.30 | Residual |
| Oxygen | O | — | 0.25 | Interstitial; strength |
| Carbon | C | — | 0.08 | Interstitial impurity |
| Nitrogen | N | — | 0.03 | Interstitial impurity |
| Hydrogen | H | — | 0.015 | Interstitial impurity |
Annealed condition, per ASTM B265 for UNS R53400.
| Condition | Property | Value |
|---|---|---|
| Annealed | Tensile strength (UTS) | ≥483 MPa (70 ksi) |
| Annealed | 0.2% yield strength | ≥345 MPa (50 ksi) |
| Annealed | Elongation at break | ≥18 % |
| Annealed | Reduction of area | ≥25 % |
| — | Elastic modulus | 103 GPa |
Confirm against the mill test report. Higher strength than the commercially pure grades; not strengthened by heat treatment.
| Environment | Performance | Notes |
|---|---|---|
| Crevice corrosion (hot chlorides) | Excellent | Major advantage over CP grades |
| Reducing acids | Very Good | Better than unalloyed titanium |
| Oxidizing media | Excellent | Stable passive film |
| Seawater / brine | Excellent | Resists chloride attack |
| Elevated-temperature strength | Very Good | Retains strength when hot |
The molybdenum and nickel additions give crevice-corrosion resistance well above the commercially pure grades — approaching the palladium-bearing grades in many hot chloride and low-pH media — at lower cost.
A corrosion-resistant titanium alloy; not hardenable by heat treatment. Properties are set by annealing.
Anneal Anneal at approximately 650–760 °C and air cool to relieve stress and restore ductility after cold work. Protect from oxygen, nitrogen and hydrogen pickup at temperature.
Excellent weldability with inert-gas processes; the weld pool and cooling weld must be fully shielded from atmospheric contamination, which causes embrittlement. Matching filler is used.
| Welding Process | Applicability | Filler / Consumable |
|---|---|---|
| GTAW / TIG | Excellent | AWS A5.16 ERTi-12 (matching) |
| GMAW / MIG | Good | ERTi-12 |
| Resistance / spot | Good | — |
Use full inert-gas shielding and clean, contamination-free surfaces; avoid hydrogen, oxygen and nitrogen pickup.
Machining Guidelines
| Parameter | Recommendation |
|---|---|
| Machinability | Moderate; sharp tools, low speed, high feed |
| Work hardening | Low-to-moderate; avoid galling |
| Coolant | Generous non-chlorinated coolant |
Forming Processes
| Process | Notes |
|---|---|
| Cold forming | Good — bending, roll forming, drawing |
| Hot forming | ~600–800 °C; protect from contamination; anneal afterward |
| Industry | Typical Components | Key Requirements |
|---|---|---|
| Chemical processing | Heat exchangers, vessels, columns | Crevice corrosion resistance + strength |
| Pulp and paper | Bleaching and process equipment | Hot chloride resistance |
| Marine / geothermal | Brine-handling equipment, components | Corrosion resistance |
| Power | Condenser and heat-transfer parts | Corrosion resistance + strength |
| Product Form | ASTM Standard | ASME / AMS |
|---|---|---|
| Sheet, strip and plate | ASTM B265 (Grade 12) | ASME SB-265 |
| Bar and billet | ASTM B348 (Grade 12) | ASME SB-348 / AMS 4902 |
| Forgings | ASTM B381 (Grade 12) | ASME SB-381 |
| Seamless / welded pipe | ASTM B861 / B862 | AWS A5.16 ERTi-12 |
Ti-0.3Mo-0.8Ni corrosion-resistant titanium alloy. UNS R53400.
| UNS | Mo % | Ni % | Pd % | Best Used For |
|---|---|---|---|---|
| R53400 | 0.2–0.4 | 0.6–0.9 | — | Ti-0.3Mo-0.8Ni; crevice resistance + strength, economical |
| R50400 | — | — | — | Workhorse commercially pure titanium (Grade 2) |
| R52400 | — | — | 0.12–0.25 | Ti-0.15Pd; best corrosion resistance (Grade 7) |
| R52250 | — | — | 0.12–0.25 | Ti-0.15Pd on Grade 1 base (Grade 11) |
| R56320 | — | — | — | Ti-3Al-2.5V; higher strength, tubing (Grade 9) |
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