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Stainless Steel 1.4468 vs CD3MCuN

Stainless Steel · grade comparison

Stainless Steel 1.4468 and CD3MCuN are both stainless steel grades. CD3MCuN is the stronger of the two: yield strength 550 MPa (79.8 ksi) against 520 MPa (75.4 ksi) for 1.4468, about 6% more. On the shop floor, 1.4468 sits in a lower cost tier (premium, $$$) than CD3MCuN (high, $$$$).

1.4468Choose it when cost is the deciding factor.

CD3MCuNChoose it when strength drives the design.

1.4468 vs CD3MCuN: properties

1.4468CD3MCuN

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

750 MPa109 ksi
740 MPa107 ksi

Yield Strength (0.2% offset)

520 MPa75.4 ksi
550 MPa79.8 ksi

Elongation at Break

30%
32%

Compressive Strength

530 MPa76.9 ksi
560 MPa81.2 ksi

Fatigue Strength (Endurance Limit)

320 MPa46.4 ksi
300 MPa43.5 ksi

Fracture Toughness (K_IC)

120 MPa·√m109 ksi·√in
100 MPa·√m91 ksi·√in

Charpy V-Notch Impact (RT)

90 J66.4 ft·lbf
80 J59 ft·lbf

Hardness, Rockwell C

22 HRC
21 HRC

Hardness, Vickers

240 HV
245 HV

Hardness, Rockwell B

—
98 HRB

Same in both: Elastic (Young's) Modulus 200 GPa29 Msi · Shear Modulus 77 GPa11.2 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.3 · Reduction in Area 45% · Shear Strength 450 MPa65.3 ksi · Hardness, Brinell 230 HB

Physical

Density and transition temperatures.

Density

7.8 g/cm³0.28 lb/in³
7.75 g/cm³0.28 lb/in³

Melting Point (Solidus)

1,400°C2,552 °F
1,380°C2,516 °F

Same in both: Liquidus Temperature 1,450°C2,642 °F

Thermal

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

Thermal Conductivity

15 W/m·K8.7 BTU/hr·ft·°F
16 W/m·K9.2 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

13 µm/m·K7.2 µin/in·°F
12.8 µm/m·K7.1 µin/in·°F

Latent Heat of Fusion

260 J/g112 BTU/lb
270 J/g116 BTU/lb

Max Service Temperature (continuous)

280°C536 °F
300°C572 °F

Same in both: Specific Heat Capacity 480 J/kg·K0.11 BTU/lb·°F · Min Service Temperature -50°C-58 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 2.2 % IACS · Electrical Resistivity 8×10⁻⁷ Ω·m31.5 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.2 V
-0.15 V

Same in both: Corrosion Resistance 78 / 100

Manufacturability

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

Machinability Rating (AISI 1212 = 100 %)

30%
22%

Polishability

65 / 100
70 / 100

Same in both: Machinability 30 / 100 · Weldability 62 / 100 · Formability (cold) 25 / 100 · Castability 65 / 100 · Brazeability / Solderability 35 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

55 MJ/kg23,646 BTU/lb
47 MJ/kg20,206 BTU/lb

Embodied Carbon (primary production)

4.6 kg CO₂/kg
3.6 kg CO₂/kg

Embodied Water

200 L/kg24 gal/lb
190 L/kg22.8 gal/lb

Typical Recycled Content

80%
70%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

96 kN·m/kg
95 kN·m/kg

Specific Stiffness (E / density)

25.6 MN·m/kg
25.8 MN·m/kg

Modulus of Resilience

676 kJ/m³
756 kJ/m³

Thermal Diffusivity

4 mm²/s
4.3 mm²/s

Thermal Shock Resistance Index

4
5

Strength versus weight

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

3005007001,0001,5002,0007.27.47.67.888.2Density (g/cm³)Yield strength (MPa) — log scaleCD3MCuN1.4468

Manufacturing and finishing

Capability1.4468CD3MCuN
Default condition——
Relative cost$$$ Premium$$$$ High
Min. machined wall——
Best machined surface——

Both take the same 7 finishes: Electroless Nickel (EN), Epoxy Coating, Gold Plating, Hard Chrome Plating, Pickling, Plasma Spray, Silver Plating.

1.4468 vs CD3MCuN — frequently asked

Is CD3MCuN stronger than 1.4468?

Yes. CD3MCuN has a typical yield strength of 550 MPa (79.8 ksi) against 520 MPa (75.4 ksi) for 1.4468 — about 6% more. Tensile strength is 740 MPa (107 ksi) vs 750 MPa (109 ksi).

Which is cheaper, 1.4468 or CD3MCuN?

1.4468 is the lower-cost material: it sits in the premium tier ($$$) while CD3MCuN is high ($$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

When should I choose 1.4468 over CD3MCuN?

Pick 1.4468 when cost is the deciding factor. Pick CD3MCuN when strength drives the design.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1.4468 and CD3MCuN 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.