Titanium Ti Grade 30
UNS R53530 · ASTM Grade 30
Ti Grade 30 (UNS R53530) is a ruthenium-enhanced variant of Grade 12, supplied within the lean-alloy titanium standard family alongside the commercially pure grades.
Reference datasheet — Ti Grade 30 is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the Annealed condition
Ti Grade 30 tempers and conditions
Ti Grade 30 is supplied in 3 conditions, soft to hard. Annealed is the default FabDigit quotes; the values on this page are for it.
Compare all 3 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
AnnealedDefault mill annealed sheet, plate, bar, pipe and tube | Standard stocked condition for all corrosion-service product forms; best ductility, formability and weldability. | 330 | 440 | 28 | 160 HB | — |
GTAW joint / weld deposit, no post-weld heat treatment | Property basis for fabricated vessel and heat-exchanger joints made with matching Grade 30 filler under inert gas. | 350 | 450 | 20 | 175 HB | 3.1 % IACS |
Cold worked and stress relieved | Pick for tubing and bar where higher yield strength and tighter tolerance are needed and forming is minimal. | 540 | 620 | 15 | 210 HB | — |
What is Ti Grade 30?
Ti Grade 30 (UNS R53530) is a ruthenium-enhanced variant of Grade 12, supplied within the lean-alloy titanium standard family alongside the commercially pure grades. In the annealed condition it gives 330 MPa yield, 440 MPa tensile, 28 % elongation and about 160 HB (80 HRB), with service to 300 °C and a corrosion-resistance rating of 96, which is why it is specified for hot chloride and reducing-acid duty in plate, sheet, pipe and welded tube. Weldability is high (rating 85) but machinability is poor (35) and the alloy costs more than CP Grade 2. Grade 7 or Grade 11 (Pd-bearing) is the nearest alternative where ruthenium-bearing stock is not on hand. Ti Grade 30 has a density of 4.51 g/cm³ (0.163 lb/in³), heavier than 57% of titanium grades. It melts at 1,650°C (3,002 °F). Ti Grade 30 has a yield strength of 330 MPa (47.9 ksi) and a tensile strength of 440 MPa (63.8 ksi) — weaker than 83% of titanium grades. Elongation at break is 28% and the elastic modulus is 105 GPa (15.2 Msi).
What is Ti Grade 30 used for?
- chemical process piping
- flue-gas desulfurization systems
- seawater equipment
Advantages
- Ductile — tolerates forming and impact — 28%, better than 89% of titanium grades
- Conducts heat well — 16.5 W/m·K (9.53 BTU/hr·ft·°F), better than 80% of titanium grades
- Easy to machine — 35/100, better than 78% of titanium grades
- High electrical conductivity — 3.1 % IACS, better than 75% of titanium grades
Limitations
- Low strength — 330 MPa (47.9 ksi), worse than 83% of titanium grades
Ti Grade 30 properties
Typical room-temperature values for Ti Grade 30-Annealed; bars are the position among titanium grades.
Physical3
Ti Grade 30 has a density of 4.51 g/cm³ (0.163 lb/in³), heavier than 57% of titanium grades. It melts at 1,650°C (3,002 °F).
Mechanical15
Ti Grade 30 has a yield strength of 330 MPa (47.9 ksi) and a tensile strength of 440 MPa (63.8 ksi) — weaker than 83% of titanium grades. Elongation at break is 28% and the elastic modulus is 105 GPa (15.2 Msi).
Thermal6
Ti Grade 30 is rated for continuous service to 300°C (572 °F). It conducts heat at 16.5 W/m·K (9.53 BTU/hr·ft·°F), better than 80% of titanium grades. Thermal expansion is 8.6 µm/m·K (4.78 µin/in·°F).
Electrical3
Ti Grade 30 conducts electricity at 3.1 % IACS, better than 75% of titanium grades.
Chemical & Environmental3
Corrosion resistance is excellent (96/100), better than 92% of titanium grades.
Sustainability4
Producing a kilogram of Ti Grade 30 takes about 700 MJ of energy and emits 44 kg of CO₂ — more than 74% of titanium grades. Typical recycled content is 20%.
Manufacturability8
Ti Grade 30's machinability is fair (35/100, better than 78% of titanium grades); weldability excellent (85/100); formability very good (70/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the titanium family
Yield strength against density for every titanium grade FabDigit runs. Ti Grade 30 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with Ti Grade 30
Is Ti Grade 30 easy to machine?
Machine like CP Ti: low surface speed (25–45 m/min HSS, 60–90 m/min carbide), heavy positive rake, sharp tools, rigid setup and flood coolant to avoid galling, work hardening and chip fires.
Can Ti Grade 30 be welded?
Excellent GTAW/PAW/EBW weldability with matching Grade 30 or Grade 7/11 filler, provided full argon/helium shielding of pool, HAZ and backside keeps weld-metal colour bright silver.
Can Ti Grade 30 be formed, bent or molded?
Cold form with generous bend radii (≈2.5–3t) and springback allowance; warm forming at 200–350 °C eases deep draws and heavy plate rolling.
Ti Grade 30 chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| Pdcathodic-depolarising noble addition | 0.04 – 0.08 | 0.05 |
| Coworks with Pd to raise crevice/reducing-acid resistance | 0.2 – 0.8 | 0.3 |
| Fe | ≤ 0.3 | |
| OGrade 2 strength level; Grade 31 is the higher-oxygen counterpart | ≤ 0.25 | 0.15 |
| C | ≤ 0.08 | |
| N | ≤ 0.03 | |
| H0.0125 % max for some product forms | ≤ 0.02 | |
| Residuals, eachtotal residuals 0.40 % max | ≤ 0.1 | |
| Ti | balance |
What surface finishes work on Ti Grade 30?
Pickle in HNO₃/HF after hot work to remove alpha case and scale; passive oxide gives the corrosion protection, with anodizing or thermal oxidation used only for wear or colour coding.
Surface treatments FabDigit runs on titanium parts — pick them in the quote configurator or call them out on the drawing. Each links to its datasheet in the surface-finish library (thickness, specs, call-out, material verdicts).
Thermal Spray
Equivalent designations
Standards and trade names that resolve to Titanium Ti Grade 30 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- R53530
- ASTM
- Grade 30
How much does Ti Grade 30 cost?
Ti Grade 30 is a high-cost titanium ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Ti Grade 30 — frequently asked
What is Ti Grade 30 used for?
Ti Grade 30 is typically used for chemical process piping, flue-gas desulfurization systems and seawater equipment. In short: ruthenium-enhanced Grade 12; crevice-corrosion upgrade; weldable Pd-free alternative.
What is the yield strength of Ti Grade 30?
Ti Grade 30 has a typical yield strength of 330 MPa (47.9 ksi) and a tensile strength of 440 MPa (63.8 ksi) — weaker than 83% of titanium grades. Strength varies by condition: see the 3 listed tempers.
Is Ti Grade 30 easy to machine?
Not especially — machinability is rated fair (35/100, better than 78% of titanium grades). Machine like CP Ti: low surface speed (25–45 m/min HSS, 60–90 m/min carbide), heavy positive rake, sharp tools, rigid setup and flood coolant to avoid galling, work hardening and chip fires.
Can Ti Grade 30 be welded?
Yes — weldability is rated excellent (85/100). Excellent GTAW/PAW/EBW weldability with matching Grade 30 or Grade 7/11 filler, provided full argon/helium shielding of pool, HAZ and backside keeps weld-metal colour bright silver.
What surface finishes work on Ti Grade 30?
Pickle in HNO₃/HF after hot work to remove alpha case and scale; passive oxide gives the corrosion protection, with anodizing or thermal oxidation used only for wear or colour coding.
Can Ti Grade 30 be formed, bent or molded?
Cold form with generous bend radii (≈2.5–3t) and springback allowance; warm forming at 200–350 °C eases deep draws and heavy plate rolling.
What is the maximum service temperature of Ti Grade 30?
Ti Grade 30 is rated for continuous use to about 300°C (572 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between Ti Grade 30 Annealed and Ti Grade 30 CW-SR?
Annealed is the default condition — standard stocked condition for all corrosion-service product forms; best ductility, formability and weldability. CW-SR: pick for tubing and bar where higher yield strength and tighter tolerance are needed and forming is minimal. Yield strength is 330 MPa in Annealed versus 540 MPa in CW-SR.
How much does Ti Grade 30 cost?
Ti Grade 30 is a high-cost titanium ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- ASTM B265 — Titanium and Titanium Alloy Strip, Sheet, and Plate (Grade 30, UNS R53400) — ASTM International (2020)
- ASTM B348 / B381 — Titanium Bar, Billet and Forgings — ASTM International (2021)
- ASTM B337/B338 — Seamless and Welded Titanium Tube for Condensers and Heat Exchangers — ASTM International (2019)
- ASM Handbook Vol.2 — Properties of Nonferrous Alloys, Titanium section — ASM International (1990)
- ASM Handbook Vol.13B — Corrosion of Titanium and Titanium Alloys — ASM International (2005)
- Corrosion-resistant titanium grades technical guide (Pd/Ru/Co-modified grades) — Titanium mill producer literature (2021)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.