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Titanium B817 Type I vs CP-Ti Powder (GB/T 30265)

Titanium · grade comparison

Titanium B817 Type I and CP-Ti Powder (GB/T 30265) are both titanium grades. Both yield at about 350 MPa — strength does not separate them. B817 Type I is the more ductile: elongation 18% versus 12% for CP-Ti Powder (GB/T 30265).

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

B817 Type I vs CP-Ti Powder (GB/T 30265): properties

B817 Type ICP-Ti Powder (GB/T 30265)

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

100 GPa14.5 Msi
105 GPa15.2 Msi

Shear Modulus

38 GPa5.5 Msi
45 GPa6.5 Msi

Elongation at Break

18%
12%

Reduction in Area

30%
20%

Compressive Strength

450 MPa65.3 ksi
400 MPa58 ksi

Fatigue Strength (Endurance Limit)

200 MPa29 ksi
180 MPa26.1 ksi

Fracture Toughness (K_IC)

55 MPa·√m50.1 ksi·√in
60 MPa·√m54.6 ksi·√in

Charpy V-Notch Impact (RT)

20 J14.8 ft·lbf
25 J18.4 ft·lbf

Hardness, Rockwell B

82 HRB
85 HRB

Same in both: Bulk Modulus 110 GPa16 Msi · Poisson's Ratio 0.34 · Tensile Strength (Ultimate) 450 MPa65.3 ksi · Yield Strength (0.2% offset) 350 MPa50.8 ksi · Shear Strength 300 MPa43.5 ksi · Hardness, Brinell 160 HB · Hardness, Vickers 170 HV

Physical

Density and transition temperatures.

Density

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

Same in both: Melting Point (Solidus) 1,660°C3,020 °F · Liquidus Temperature 1,670°C3,038 °F

Thermal

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

Latent Heat of Fusion

295 J/g127 BTU/lb
320 J/g138 BTU/lb

Min Service Temperature

-250°C-418 °F
-253°C-423 °F

Same in both: Thermal Conductivity 16 W/m·K9.2 BTU/hr·ft·°F · 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
90 / 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 Rating (AISI 1212 = 100 %)

40%
35%

Weldability

75 / 100
80 / 100

Formability (cold)

55 / 100
65 / 100

Brazeability / Solderability

60 / 100
45 / 100

Polishability

70 / 100
65 / 100

Same in both: Machinability 35 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

750 MJ/kg322,442 BTU/lb
780 MJ/kg335,340 BTU/lb

Embodied Water

500 L/kg59.9 gal/lb
800 L/kg95.9 gal/lb

Typical Recycled Content

20%
15%

Same in both: Embodied Carbon (primary production) 48 kg CO₂/kg

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

102 kN·m/kg
100 kN·m/kg

Specific Stiffness (E / density)

22.6 MN·m/kg
23.3 MN·m/kg

Modulus of Resilience

613 kJ/m³
583 kJ/m³

Thermal Diffusivity

6.9 mm²/s
6.8 mm²/s

Same in both: Thermal Shock Resistance Index 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 scaleB817 Type ICP-Ti Powder (GB/T 30265)

Manufacturing and finishing

CapabilityB817 Type ICP-Ti Powder (GB/T 30265)
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 (GB/T 30265) — frequently asked

What is the difference between B817 Type I and CP-Ti Powder (GB/T 30265)?

Titanium B817 Type I and CP-Ti Powder (GB/T 30265) are both titanium grades. Both yield at about 350 MPa — strength does not separate them. B817 Type I is the more ductile: elongation 18% versus 12% for CP-Ti Powder (GB/T 30265).

Which is cheaper, B817 Type I or CP-Ti Powder (GB/T 30265)?

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 welds better, B817 Type I or CP-Ti Powder (GB/T 30265)?

CP-Ti Powder (GB/T 30265). Its weldability rates very good (80/100) against very good (75/100) for B817 Type I.

Ready to make it?

Upload a CAD file and FabDigit prices the part in B817 Type I and CP-Ti Powder (GB/T 30265) 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.