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Titanium B817 Type I vs CP-Ti Powder for MIM

Titanium · grade comparison

Titanium B817 Type I and CP-Ti Powder for MIM are both titanium grades. CP-Ti Powder for MIM is the stronger of the two: yield strength 380 MPa (55.1 ksi) against 350 MPa (50.8 ksi) for B817 Type I, about 9% more; tensile strength follows at 480 MPa (69.6 ksi) vs 450 MPa (65.3 ksi). In exchange, B817 Type I is the more ductile: elongation 18% versus 15% for CP-Ti Powder for MIM. On the shop floor, B817 Type I machines more easily (fair vs poor) and B817 Type I welds better (very good vs good).

B817 Type IChoose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

CP-Ti Powder for MIMChoose it when strength drives the design.

B817 Type I vs CP-Ti Powder for MIM: properties

B817 Type ICP-Ti Powder for MIM

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Shear Modulus

38 GPa5.5 Msi
40 GPa5.8 Msi

Bulk Modulus

110 GPa16 Msi
108 GPa15.7 Msi

Tensile Strength (Ultimate)

450 MPa65.3 ksi
480 MPa69.6 ksi

Yield Strength (0.2% offset)

350 MPa50.8 ksi
380 MPa55.1 ksi

Elongation at Break

18%
15%

Reduction in Area

30%
25%

Compressive Strength

450 MPa65.3 ksi
500 MPa72.5 ksi

Shear Strength

300 MPa43.5 ksi
330 MPa47.9 ksi

Hardness, Rockwell B

82 HRB
85 HRB

Same in both: Elastic (Young's) Modulus 100 GPa14.5 Msi · Poisson's Ratio 0.34 · Fatigue Strength (Endurance Limit) 200 MPa29 ksi · Fracture Toughness (K_IC) 55 MPa·√m50.1 ksi·√in · Charpy V-Notch Impact (RT) 20 J14.8 ft·lbf · Hardness, Brinell 160 HB · Hardness, Vickers 170 HV

Physical

Density and transition temperatures.

Density

4.42 g/cm³0.16 lb/in³
4.4 g/cm³0.16 lb/in³

Melting Point (Solidus)

1,660°C3,020 °F
1,668°C3,034 °F

Same in both: Liquidus Temperature 1,670°C3,038 °F

Thermal

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

Thermal Conductivity

16 W/m·K9.2 BTU/hr·ft·°F
15.5 W/m·K9 BTU/hr·ft·°F

Latent Heat of Fusion

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

Min Service Temperature

-250°C-418 °F
-196°C-321 °F

Same in both: Specific Heat Capacity 523 J/kg·K0.12 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 8.6 µm/m·K4.8 µin/in·°F · Max Service Temperature (continuous) 300°C572 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 3.1 % IACS · Electrical Resistivity 5.6×10⁻⁷ Ω·m22 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

88 / 100
85 / 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

35 / 100
25 / 100

Machinability Rating (AISI 1212 = 100 %)

40%
20%

Weldability

75 / 100
55 / 100

Formability (cold)

55 / 100
20 / 100

Brazeability / Solderability

60 / 100
50 / 100

Same in both: Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Water

500 L/kg59.9 gal/lb
600 L/kg71.9 gal/lb

Typical Recycled Content

20%
10%

Same in both: Embodied Energy (primary production) 750 MJ/kg322,442 BTU/lb · Embodied Carbon (primary production) 48 kg CO₂/kg

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

102 kN·m/kg
109 kN·m/kg

Specific Stiffness (E / density)

22.6 MN·m/kg
22.7 MN·m/kg

Modulus of Resilience

613 kJ/m³
722 kJ/m³

Thermal Diffusivity

6.9 mm²/s
6.7 mm²/s

Thermal Shock Resistance Index

8
9

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 scaleB817 Type ICP-Ti Powder for MIM

Manufacturing and finishing

CapabilityB817 Type ICP-Ti Powder for MIM
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

Both take the same 1 finish: Plasma Spray.

B817 Type I vs CP-Ti Powder for MIM — frequently asked

Is CP-Ti Powder for MIM stronger than B817 Type I?

Yes. CP-Ti Powder for MIM has a typical yield strength of 380 MPa (55.1 ksi) against 350 MPa (50.8 ksi) for B817 Type I — about 9% more. Tensile strength is 480 MPa (69.6 ksi) vs 450 MPa (65.3 ksi).

Which is cheaper, B817 Type I or CP-Ti Powder for MIM?

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

Which is easier to machine, B817 Type I or CP-Ti Powder for MIM?

B817 Type I. Its machinability rates fair (35/100) against poor (25/100) for CP-Ti Powder for MIM; for welding the order is B817 Type I first (very good, 75/100) then CP-Ti Powder for MIM (good, 55/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in B817 Type I and CP-Ti Powder for MIM 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.