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Titanium R56406 vs C-1 vs C-4 vs C-9

Benchmark · 4 materials

Side-by-side benchmark of 4 titanium grades.

R56406 vs C-1 and 2 more: properties

R56406C-1C-4C-9

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

110 GPa16 Msi
103 GPa14.9 Msi
104 GPa15.1 Msi
100 GPa14.5 Msi

Shear Modulus

42 GPa6.1 Msi
45 GPa6.5 Msi
45 GPa6.5 Msi
44 GPa6.4 Msi

Bulk Modulus

110 GPa16 Msi
108 GPa15.7 Msi
110 GPa16 Msi
110 GPa16 Msi

Poisson's Ratio

0.34
0.34
0.34
0.3

Tensile Strength (Ultimate)

910 MPa132 ksi
300 MPa43.5 ksi
620 MPa89.9 ksi
690 MPa100 ksi

Yield Strength (0.2% offset)

840 MPa122 ksi
210 MPa30.5 ksi
530 MPa76.9 ksi
550 MPa79.8 ksi

Elongation at Break

11%
20%
12%
12%

Reduction in Area

21%
30%
20%
20%

Compressive Strength

900 MPa131 ksi
220 MPa31.9 ksi
560 MPa81.2 ksi
620 MPa89.9 ksi

Shear Strength

570 MPa82.7 ksi
210 MPa30.5 ksi
430 MPa62.4 ksi
450 MPa65.3 ksi

Fatigue Strength (Endurance Limit)

470 MPa68.2 ksi
145 MPa21 ksi
240 MPa34.8 ksi
340 MPa49.3 ksi

Fracture Toughness (K_IC)

92 MPa·√m83.7 ksi·√in
75 MPa·√m68.3 ksi·√in
60 MPa·√m54.6 ksi·√in
70 MPa·√m63.7 ksi·√in

Charpy V-Notch Impact (RT)

23 J17 ft·lbf
45 J33.2 ft·lbf
14 J10.3 ft·lbf
22 J16.2 ft·lbf

Hardness, Brinell

325 HB
120 HB
265 HB
240 HB

Hardness, Rockwell C

34 HRC
—
26 HRC
23 HRC

Hardness, Vickers

340 HV
130 HV
280 HV
255 HV

Hardness, Rockwell B

—
65 HRB
—
—

Physical

Density and transition temperatures.

Density

4.43 g/cm³0.16 lb/in³
4.51 g/cm³0.16 lb/in³
4.51 g/cm³0.16 lb/in³
4.48 g/cm³0.16 lb/in³

Melting Point (Solidus)

1,604°C2,919 °F
1,660°C3,020 °F
1,660°C3,020 °F
1,650°C3,002 °F

Liquidus Temperature

1,660°C3,020 °F
1,670°C3,038 °F
1,670°C3,038 °F
1,700°C3,092 °F

Thermal

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

Thermal Conductivity

6.9 W/m·K4 BTU/hr·ft·°F
17 W/m·K9.8 BTU/hr·ft·°F
17.2 W/m·K9.9 BTU/hr·ft·°F
7.6 W/m·K4.4 BTU/hr·ft·°F

Specific Heat Capacity

546 J/kg·K0.13 BTU/lb·°F
523 J/kg·K0.12 BTU/lb·°F
544 J/kg·K0.13 BTU/lb·°F
544 J/kg·K0.13 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

8.7 µm/m·K4.8 µin/in·°F
8.6 µm/m·K4.8 µin/in·°F
8.6 µm/m·K4.8 µin/in·°F
9.4 µm/m·K5.2 µin/in·°F

Latent Heat of Fusion

365 J/g157 BTU/lb
325 J/g140 BTU/lb
320 J/g138 BTU/lb
365 J/g157 BTU/lb

Max Service Temperature (continuous)

350°C662 °F
300°C572 °F
300°C572 °F
300°C572 °F

Min Service Temperature

-253°C-423 °F
-250°C-418 °F
-196°C-321 °F
-196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

1 % IACS
3.6 % IACS
2.9 % IACS
1.4 % IACS

Electrical Resistivity

1.7×10⁻⁶ Ω·m66.9 µΩ·in
4.8×10⁻⁷ Ω·m18.9 µΩ·in
6×10⁻⁷ Ω·m23.6 µΩ·in
1.26×10⁻⁶ Ω·m49.6 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

92 / 100
93 / 100
92 / 100
92 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.1 V

Manufacturability

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

Machinability

20 / 100
42 / 100
30 / 100
25 / 100

Machinability Rating (AISI 1212 = 100 %)

22%
35%
35%
22%

Weldability

70 / 100
88 / 100
85 / 100
80 / 100

Formability (cold)

15 / 100
60 / 100
20 / 100
10 / 100

Castability

65 / 100
65 / 100
60 / 100
70 / 100

Brazeability / Solderability

40 / 100
40 / 100
40 / 100
35 / 100

Polishability

80 / 100
70 / 100
75 / 100
70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

700 MJ/kg300,946 BTU/lb
640 MJ/kg275,151 BTU/lb
650 MJ/kg279,450 BTU/lb
650 MJ/kg279,450 BTU/lb

Embodied Carbon (primary production)

45 kg CO₂/kg
40 kg CO₂/kg
39 kg CO₂/kg
42 kg CO₂/kg

Embodied Water

700 L/kg83.9 gal/lb
700 L/kg83.9 gal/lb
900 L/kg108 gal/lb
450 L/kg53.9 gal/lb

Typical Recycled Content

25%
30%
25%
35%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

205 kN·m/kg
67 kN·m/kg
137 kN·m/kg
154 kN·m/kg

Specific Stiffness (E / density)

24.8 MN·m/kg
22.8 MN·m/kg
23.1 MN·m/kg
22.3 MN·m/kg

Modulus of Resilience

3,207 kJ/m³
214 kJ/m³
1,350 kJ/m³
1,513 kJ/m³

Thermal Diffusivity

2.9 mm²/s
7.2 mm²/s
7 mm²/s
3.1 mm²/s

Thermal Shock Resistance Index

7
6
12
6

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 scaleC-1C-4C-9R56406

Manufacturing and finishing

CapabilityR56406C-1C-4C-9
Default condition————
Relative cost$$$$ High$$$$ High$$$$ High$$$$ High
Min. machined wall————
Best machined surface————

Both take the same 1 finish: Plasma Spray.

Ready to make it?

Upload a CAD file and FabDigit prices the part in R56406 and C-1 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.