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Steel 09CuPCrNi vs Q460

Steel · grade comparison

Steel 09CuPCrNi and Q460 are both steel grades. Q460 is the stronger of the two: yield strength 500 MPa (72.5 ksi) against 300 MPa (43.5 ksi) for 09CuPCrNi, about 67% more; tensile strength follows at 620 MPa (89.9 ksi) vs 450 MPa (65.3 ksi). In exchange, 09CuPCrNi is the more ductile: elongation 31% versus 21% for Q460, and Q460 is harder (185 HB vs 135 HB). On the shop floor, 09CuPCrNi machines more easily (good vs fair).

09CuPCrNiChoose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

Q460Choose it when strength drives the design.

09CuPCrNi vs Q460: properties

09CuPCrNiQ460

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Poisson's Ratio

0.29
0.3

Tensile Strength (Ultimate)

450 MPa65.3 ksi
620 MPa89.9 ksi

Yield Strength (0.2% offset)

300 MPa43.5 ksi
500 MPa72.5 ksi

Elongation at Break

31%
21%

Reduction in Area

60%
52%

Compressive Strength

300 MPa43.5 ksi
500 MPa72.5 ksi

Shear Strength

290 MPa42.1 ksi
375 MPa54.4 ksi

Fatigue Strength (Endurance Limit)

200 MPa29 ksi
265 MPa38.4 ksi

Charpy V-Notch Impact (RT)

80 J59 ft·lbf
60 J44.3 ft·lbf

Hardness, Brinell

135 HB
185 HB

Hardness, Rockwell B

74 HRB
90 HRB

Hardness, Vickers

142 HV
195 HV

Same in both: Elastic (Young's) Modulus 206 GPa29.9 Msi · Shear Modulus 79 GPa11.5 Msi · Bulk Modulus 160 GPa23.2 Msi · Fracture Toughness (K_IC) 90 MPa·√m81.9 ksi·√in

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,460°C2,660 °F
1,420°C2,588 °F

Liquidus Temperature

1,520°C2,768 °F
1,500°C2,732 °F

Same in both: Density 7.85 g/cm³0.28 lb/in³

Thermal

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

Thermal Conductivity

48 W/m·K27.7 BTU/hr·ft·°F
45 W/m·K26 BTU/hr·ft·°F

Min Service Temperature

-40°C-40 °F
0°C32 °F

Same in both: Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12 µm/m·K6.7 µin/in·°F · Latent Heat of Fusion 260 J/g112 BTU/lb · Max Service Temperature (continuous) 350°C662 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

8.6 % IACS
8.2 % IACS

Electrical Resistivity

2×10⁻⁷ Ω·m7.87 µΩ·in
2.1×10⁻⁷ Ω·m8.27 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.6 V
-0.62 V

Corrosion Resistance

32 / 100
12 / 100

Manufacturability

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

Machinability

62 / 100
52 / 100

Machinability Rating (AISI 1212 = 100 %)

65%
55%

Weldability

78 / 100
70 / 100

Formability (cold)

75 / 100
55 / 100

Castability

—
30 / 100

Same in both: Brazeability / Solderability 55 / 100 · Polishability 45 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

25 MJ/kg10,748 BTU/lb
26 MJ/kg11,178 BTU/lb

Embodied Carbon (primary production)

2 kg CO₂/kg
2.1 kg CO₂/kg

Embodied Water

50 L/kg6 gal/lb
45 L/kg5.4 gal/lb

Same in both: Typical Recycled Content 25%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

57 kN·m/kg
79 kN·m/kg

Modulus of Resilience

218 kJ/m³
607 kJ/m³

Thermal Diffusivity

13 mm²/s
12.2 mm²/s

Thermal Shock Resistance Index

9
11

Same in both: Specific Stiffness (E / density) 26.2 MN·m/kg

Strength versus weight

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

2005001,0002,0007.588.5Density (g/cm³)Yield strength (MPa) — log scaleQ46009CuPCrNi

Manufacturing and finishing

Capability09CuPCrNiQ460
CNC machining—Yes
Sheet metal—Yes
Default condition—HR
Relative cost$ Budget$ Budget
Min. machined wall—0.8 mm
Best machined surface—Ra 1.6 µm
AlCrN—Yes
AlTiN—Yes
Black Oxide—Yes
CVD Al2O3—Yes
CVD TiCN—Yes
CVD TiN—Yes
Cerakote—Yes
Chrome Plating—Yes
CrN—Yes
DLC—Yes
E-Coating—Yes
HVOF Coating—Yes
Hot-Dip Galvanizing—Yes
MoS2—Yes
Multilayer CVD—Yes
Nickel Plating—Yes
PTFE Coating—Yes
Painting—Yes

They share 9 finishes: Copper Plating, Electroless Nickel (EN), Epoxy Coating, Gold Plating, Hard Chrome Plating, Manganese Phosphate, Plasma Spray, Silver Plating, Zinc Phosphate.

09CuPCrNi vs Q460 — frequently asked

Is Q460 stronger than 09CuPCrNi?

Yes. Q460 has a typical yield strength of 500 MPa (72.5 ksi) against 300 MPa (43.5 ksi) for 09CuPCrNi — about 67% more. Tensile strength is 620 MPa (89.9 ksi) vs 450 MPa (65.3 ksi).

Which is cheaper, 09CuPCrNi or Q460?

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

Which is easier to machine, 09CuPCrNi or Q460?

09CuPCrNi. Its machinability rates good (62/100) against fair (52/100) for Q460; for welding the order is 09CuPCrNi first (very good, 78/100) then Q460 (very good, 70/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 09CuPCrNi and Q460 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.