Titanium VT1-0-SR (Stress relieved)
Heat-treated state
For welded assemblies and machined parts where distortion control matters while retaining most cold-work strength.
Values for the SR condition
Other VT1-0 tempers and conditions
VT1-0 is listed in 6 conditions; see the grade overview at VT1-0.
Compare all 6 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Cold rolled + annealed sheet/strip | Thin sheet and strip (0.3–4 mm) with bright pickled surface and full ductility for deep drawing and tube forming. | 310 | 440 | 30 | 150 HB | 3.1 % IACS |
billet, ring, flange | Heavy sections, flanges and valve bodies; properties similar to annealed bar with somewhat lower ductility in thick sections. | 310 | 440 | 25 | 160 HB | 3.1 % IACS |
ANNDefault Annealed | Default stocked condition: best ductility and formability, used for tube, sheet, plate and general fabrication. | 320 | 450 | 28 | 155 HB | — |
Hot rolled | Heavier plate and bar supplied as hot rolled and pickled; slightly higher strength, coarser surface, some residual stress. | 360 | 480 | 22 | 170 HB | 3.1 % IACS |
SRThis page Stress relieved | For welded assemblies and machined parts where distortion control matters while retaining most cold-work strength. | 400 | 500 | 18 | 180 HB | 3.1 % IACS |
Cold worked | Choose when higher strength and stiffness-in-service are needed and forming is minimal; ductility roughly halved. | 520 | 600 | 10 | 210 HB | — |
What is VT1-0-SR?
VT1-0-SR is VT1-0 heat treated to SR — for welded assemblies and machined parts where distortion control matters while retaining most cold-work strength. VT1-0-SR has a yield strength of 400 MPa (58 ksi) and a tensile strength of 500 MPa (72.5 ksi) — weaker than 68% of titanium grades. Elongation at break is 18% and the elastic modulus is 105 GPa (15.2 Msi). VT1-0-SR has a density of 4.51 g/cm³ (0.163 lb/in³), heavier than 57% of titanium grades. It melts at 1,660°C (3,020 °F). ANN is the default condition FabDigit quotes; SR is available on request or by drawing note.
Advantages
- High electrical conductivity — 3.1 % IACS, better than 75% of titanium grades
VT1-0-SR properties
Typical room-temperature values for VT1-0-SR; 22 are specific to this condition. Other listed values are VT1-0 reference data and may not represent this condition. Bars are the position among titanium grades.
Physical3
VT1-0-SR has a density of 4.51 g/cm³ (0.163 lb/in³), heavier than 57% of titanium grades. It melts at 1,660°C (3,020 °F).
Mechanical15
VT1-0-SR has a yield strength of 400 MPa (58 ksi) and a tensile strength of 500 MPa (72.5 ksi) — weaker than 68% of titanium grades. Elongation at break is 18% and the elastic modulus is 105 GPa (15.2 Msi).
Thermal6
VT1-0-SR is rated for continuous service to 300°C (572 °F). It conducts heat at 16.4 W/m·K (9.48 BTU/hr·ft·°F), better than 71% of titanium grades. Thermal expansion is 8.6 µm/m·K (4.78 µin/in·°F).
Electrical3
VT1-0-SR conducts electricity at 3.1 % IACS, better than 75% of titanium grades.
Chemical & Environmental3
Corrosion resistance is excellent (92/100), better than 53% of titanium grades.
Sustainability4
Producing a kilogram of VT1-0-SR takes about 680 MJ of energy and emits 42 kg of CO₂ — more than 51% of titanium grades. Typical recycled content is 25%.
Manufacturability8
VT1-0-SR's machinability is poor (34/100, better than 74% of titanium grades); weldability excellent (85/100); formability good (55/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with VT1-0-SR
Is VT1-0 easy to machine?
Low speeds, heavy positive-rake sharp carbide tooling and flood coolant; avoid dwelling (work hardening) and control chips — fine turnings are a fire hazard.
Can VT1-0 be welded?
Excellent GTAW/PAW/EBW weldability with full argon/helium shielding and trailing gas; keep weld zone bright silver — straw/blue/grey tint signals contamination and embrittlement.
Can VT1-0 be formed, bent or molded?
Formable cold with generous bend radii (≈2–3 t) and allowance for high springback; warm forming at 200–400 °C greatly improves deep-draw and bend performance.
What surface finishes work on VT1-0?
Pickle in HNO₃/HF to remove alpha case and scale; takes bright polishing, colour anodizing (AMS 2488 Type II) and PVD coatings; do not plate directly without activation.
VT1-0 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 |
|---|---|---|
| Feimpurity limit per GOST 19807-91 | ≤ 0.25 | 0.15 |
| Si | ≤ 0.1 | 0.05 |
| C | ≤ 0.07 | 0.03 |
| Ocontrols strength level | ≤ 0.2 | 0.12 |
| N | ≤ 0.04 | 0.02 |
| H | ≤ 0.01 | 0 |
| other impurities, totalsum of residuals | ≤ 0.3 | — |
| Ti99.24–99.70 % Ti | balance | — |
VT1-0-SR — frequently asked
What is VT1-0-SR used for?
VT1-0-SR is typically used for seawater piping, heat exchangers, pressure vessels and architectural cladding. In short: grade 2-equivalent CP titanium; highly weldable seawater alloy; corrosion resistance at low density.
What is the yield strength of VT1-0-SR?
VT1-0-SR has a typical yield strength of 400 MPa (58 ksi) and a tensile strength of 500 MPa (72.5 ksi) — weaker than 68% of titanium grades. Strength varies by condition: see the 6 listed tempers.
Is VT1-0-SR easy to machine?
Not especially — machinability is rated poor (34/100, better than 74% of titanium grades). Low speeds, heavy positive-rake sharp carbide tooling and flood coolant; avoid dwelling (work hardening) and control chips — fine turnings are a fire hazard.
Can VT1-0-SR be welded?
Yes — weldability is rated excellent (85/100). Excellent GTAW/PAW/EBW weldability with full argon/helium shielding and trailing gas; keep weld zone bright silver — straw/blue/grey tint signals contamination and embrittlement.
What surface finishes work on VT1-0-SR?
Pickle in HNO₃/HF to remove alpha case and scale; takes bright polishing, colour anodizing (AMS 2488 Type II) and PVD coatings; do not plate directly without activation.
Can VT1-0-SR be formed, bent or molded?
Formable cold with generous bend radii (≈2–3 t) and allowance for high springback; warm forming at 200–400 °C greatly improves deep-draw and bend performance.
What is the maximum service temperature of VT1-0-SR?
VT1-0-SR 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 VT1-0-ANN and VT1-0-CW?
ANN is the default condition — default stocked condition: best ductility and formability, used for tube, sheet, plate and general fabrication. CW: choose when higher strength and stiffness-in-service are needed and forming is minimal; ductility roughly halved. Yield strength is 320 MPa in ANN versus 520 MPa in CW.
Sources
- GOST 19807-91 Titanium and wrought titanium alloys — Grades — Gosstandart (1991)
- GOST 22178-76 Titanium sheets — Specifications — Gosstandart (1976)
- GOST 26492-85 Titanium and titanium alloy bars — Gosstandart (1985)
- ASTM B265 / B348 (Grade 2 equivalence) — ASTM International (2023)
- GB/T 3620.1 TA2 (Chinese equivalent grade) — SAC (2016)
- ASM Handbook Vol.2 — Properties of Nonferrous Alloys (CP Titanium) — ASM International (1990)
- ASM Handbook Vol.13B — Corrosion: Materials (Titanium) — ASM International (2005)
- VSMPO-AVISMA commercially pure titanium product data — VSMPO-AVISMA (2022)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.