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Titanium Grade 1 vs Ti-6242

Titanium · grade comparison

Titanium Grade 1 and Ti-6242 are both titanium grades. Ti-6242 is the stronger of the two: yield strength 930 MPa (135 ksi) against 220 MPa (31.9 ksi) for Grade 1, about 4.2 times as much; tensile strength follows at 1,000 MPa (145 ksi) vs 300 MPa (43.5 ksi). In exchange, Grade 1 is the more ductile: elongation 30% versus 14% for Ti-6242, and Ti-6242 is harder (310 HB vs 120 HB). Ti-6242 is stiffer (114 GPa vs 103 GPa) and Ti-6242 runs hotter in service (540°C vs 300°C continuous). On the shop floor, Grade 1 machines more easily (fair vs poor) and Grade 1 welds better (excellent vs good).

Grade 1Choose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

Ti-6242Choose it when strength drives the design, or when the part sees heat.

Grade 1 vs Ti-6242: properties

Grade 1Ti-6242

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

103 GPa14.9 Msi
114 GPa16.5 Msi

Shear Modulus

40 GPa5.8 Msi
44 GPa6.4 Msi

Bulk Modulus

110 GPa16 Msi
106 GPa15.4 Msi

Poisson's Ratio

0.34
0.32

Tensile Strength (Ultimate)

300 MPa43.5 ksi
1,000 MPa145 ksi

Yield Strength (0.2% offset)

220 MPa31.9 ksi
930 MPa135 ksi

Elongation at Break

30%
14%

Reduction in Area

55%
30%

Compressive Strength

250 MPa36.3 ksi
965 MPa140 ksi

Shear Strength

240 MPa34.8 ksi
640 MPa92.8 ksi

Fatigue Strength (Endurance Limit)

150 MPa21.8 ksi
500 MPa72.5 ksi

Fracture Toughness (K_IC)

80 MPa·√m72.8 ksi·√in
60 MPa·√m54.6 ksi·√in

Charpy V-Notch Impact (RT)

90 J66.4 ft·lbf
20 J14.8 ft·lbf

Hardness, Brinell

120 HB
310 HB

Hardness, Rockwell B

70 HRB
—

Hardness, Vickers

125 HV
320 HV

Hardness, Rockwell C

—
32 HRC

Physical

Density and transition temperatures.

Density

4.51 g/cm³0.16 lb/in³
4.54 g/cm³0.16 lb/in³

Melting Point (Solidus)

1,670°C3,038 °F
1,650°C3,002 °F

Liquidus Temperature

1,670°C3,038 °F
1,705°C3,101 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

20 W/m·K11.6 BTU/hr·ft·°F
7 W/m·K4 BTU/hr·ft·°F

Specific Heat Capacity

523 J/kg·K0.12 BTU/lb·°F
460 J/kg·K0.11 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

8.6 µm/m·K4.8 µin/in·°F
7.7 µm/m·K4.3 µin/in·°F

Latent Heat of Fusion

295 J/g127 BTU/lb
365 J/g157 BTU/lb

Max Service Temperature (continuous)

300°C572 °F
540°C1,004 °F

Same in both: Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

3.6 % IACS
1.1 % IACS

Electrical Resistivity

4.8×10⁻⁷ Ω·m18.9 µΩ·in
1.6×10⁻⁶ Ω·m63 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.05 V
-0.08 V

Corrosion Resistance

93 / 100
85 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

42 / 100
18 / 100

Machinability Rating (AISI 1212 = 100 %)

45%
20%

Weldability

90 / 100
60 / 100

Formability (cold)

82 / 100
25 / 100

Castability

35 / 100
30 / 100

Brazeability / Solderability

40 / 100
35 / 100

Same in both: Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Carbon (primary production)

42 kg CO₂/kg
44 kg CO₂/kg

Embodied Water

600 L/kg71.9 gal/lb
520 L/kg62.3 gal/lb

Typical Recycled Content

25%
30%

Same in both: Embodied Energy (primary production) 650 MJ/kg279,450 BTU/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

67 kN·m/kg
220 kN·m/kg

Specific Stiffness (E / density)

22.8 MN·m/kg
25.1 MN·m/kg

Modulus of Resilience

235 kJ/m³
3,793 kJ/m³

Thermal Diffusivity

8.5 mm²/s
3.4 mm²/s

Thermal Shock Resistance Index

7
8

Strength versus weight

Yield strength against density for every titanium grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

3005007001,0004.555.5Density (g/cm³)Yield strength (MPa) — log scaleGrade 1Ti-6242

Manufacturing and finishing

CapabilityGrade 1Ti-6242
Default conditionOO
Relative cost$$$$$ Specialty$$$$$ Specialty
Min. machined wall1 mm1 mm
Best machined surfaceRa 1.6 µmRa 1.6 µm

Both are offered for CNC machining and Sheet metal. Both take the same 20 finishes: AlCrN, AlTiN, Anodizing Type II, CVD Al2O3, CVD TiCN, CVD TiN, Cerakote, CrN, DLC, Electropolishing, HVOF Coating, MoS2 and 8 more.

Grade 1 vs Ti-6242 — frequently asked

Is Ti-6242 stronger than Grade 1?

Yes. Ti-6242 has a typical yield strength of 930 MPa (135 ksi) against 220 MPa (31.9 ksi) for Grade 1 — about 4.2 times as much. Tensile strength is 1,000 MPa (145 ksi) vs 300 MPa (43.5 ksi).

Which is cheaper, Grade 1 or Ti-6242?

Both sit in the same relative cost tier ($$$$$, specialty); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which is easier to machine, Grade 1 or Ti-6242?

Grade 1. Its machinability rates fair (42/100) against poor (18/100) for Ti-6242; for welding the order is Grade 1 first (excellent, 90/100) then Ti-6242 (good, 60/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in Grade 1 and Ti-6242 side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.

Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.