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Nickel Alloy NiCo20Cr20MoTi-CD vs NiCo20Cr20MoTi-ST

Nickel Alloy · NiCo20Cr20MoTi temper comparison

NiCo20Cr20MoTi-CD and NiCo20Cr20MoTi-ST are two conditions of the same nickel alloy grade, NiCo20Cr20MoTi: CD (cold drawn) versus ST (solution annealed). The chemistry is identical, so every difference below comes from the condition. NiCo20Cr20MoTi-CD is the stronger of the two: yield strength 800 MPa (116 ksi) against 540 MPa (78.3 ksi) for NiCo20Cr20MoTi-ST, about 48% more; tensile strength follows at 1,050 MPa (152 ksi) vs 880 MPa (128 ksi). In exchange, NiCo20Cr20MoTi-ST is the more ductile: elongation 42% versus 15% for NiCo20Cr20MoTi-CD, and NiCo20Cr20MoTi-CD is harder (305 HB vs 190 HB). NiCo20Cr20MoTi-ST runs hotter in service (800°C vs 600°C continuous). On the shop floor, NiCo20Cr20MoTi-ST welds better (very good vs fair).

NiCo20Cr20MoTi-CDChoose it when strength drives the design.

NiCo20Cr20MoTi-STChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.

NiCo20Cr20MoTi-CD vs NiCo20Cr20MoTi-ST: properties

NiCo20Cr20MoTi-CDNiCo20Cr20MoTi-ST

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

1,050 MPa152 ksi
880 MPa128 ksi

Yield Strength (0.2% offset)

800 MPa116 ksi
540 MPa78.3 ksi

Elongation at Break

15%
42%

Reduction in Area

25%
45%

Shear Strength

640 MPa92.8 ksi
560 MPa81.2 ksi

Fatigue Strength (Endurance Limit)

400 MPa58 ksi
300 MPa43.5 ksi

Fracture Toughness (K_IC)

90 MPa·√m81.9 ksi·√in
110 MPa·√m100 ksi·√in

Charpy V-Notch Impact (RT)

50 J36.9 ft·lbf
110 J81.1 ft·lbf

Hardness, Brinell

305 HB
190 HB

Hardness, Vickers

320 HV
200 HV

Same in both: Elastic (Young's) Modulus 221 GPa32.1 Msi · Shear Modulus 85 GPa12.3 Msi · Bulk Modulus 184 GPa26.7 Msi · Poisson's Ratio 0.3 · Hardness, Rockwell B 92 HRB

Physical

Density and transition temperatures.

Same in both: Density 8.36 g/cm³0.3 lb/in³ · Melting Point (Solidus) 1,300°C2,372 °F · Liquidus Temperature 1,355°C2,471 °F

Thermal

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

Max Service Temperature (continuous)

600°C1,112 °F
800°C1,472 °F

Same in both: Thermal Conductivity 11.7 W/m·K6.8 BTU/hr·ft·°F · Specific Heat Capacity 461 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.7 µm/m·K6.5 µin/in·°F · Latent Heat of Fusion 290 J/g125 BTU/lb · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

1.16×10⁻⁶ Ω·m45.7 µΩ·in
1.15×10⁻⁶ Ω·m45.3 µΩ·in

Same in both: Electrical Conductivity 1.5 % IACS

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

76 / 100
78 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.15 V

Manufacturability

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

Machinability

16 / 100
20 / 100

Machinability Rating (AISI 1212 = 100 %)

10%
12%

Weldability

45 / 100
75 / 100

Formability (cold)

20 / 100
60 / 100

Same in both: Castability 35 / 100 · Brazeability / Solderability 60 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 235 MJ/kg101,032 BTU/lb · Embodied Carbon (primary production) 17 kg CO₂/kg · Embodied Water 500 L/kg59.9 gal/lb · Typical Recycled Content 35%

Strength versus weight

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

2005001,0006.577.588.59Density (g/cm³)Yield strength (MPa) — log scaleNiCo20Cr20MoTi

NiCo20Cr20MoTi-CD vs NiCo20Cr20MoTi-ST — frequently asked

Is NiCo20Cr20MoTi-CD stronger than NiCo20Cr20MoTi-ST?

Yes. NiCo20Cr20MoTi-CD has a typical yield strength of 800 MPa (116 ksi) against 540 MPa (78.3 ksi) for NiCo20Cr20MoTi-ST — about 48% more. Tensile strength is 1,050 MPa (152 ksi) vs 880 MPa (128 ksi).

Which condition does FabDigit quote by default, CD or ST?

ST is the default NiCo20Cr20MoTi condition in the FabDigit quote flow. The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.

Which welds better, NiCo20Cr20MoTi-CD or NiCo20Cr20MoTi-ST?

NiCo20Cr20MoTi-ST. Its weldability rates very good (75/100) against fair (45/100) for NiCo20Cr20MoTi-CD.

Ready to make it?

Upload a CAD file and FabDigit prices the part in NiCo20Cr20MoTi-CD and NiCo20Cr20MoTi-ST 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.