FabDigit

Q960Q vs Hardox 500 and 2 more: properties

Q960QHardox 500NM400Hardox 600

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Shear Modulus

81 GPa11.7 Msi
80 GPa11.6 Msi
80 GPa11.6 Msi
81 GPa11.7 Msi

Bulk Modulus

160 GPa23.2 Msi
160 GPa23.2 Msi
165 GPa23.9 Msi
160 GPa23.2 Msi

Poisson's Ratio

0.3
0.3
0.29
0.3

Tensile Strength (Ultimate)

1,050 MPa152 ksi
1,600 MPa232 ksi
1,250 MPa181 ksi
2,000 MPa290 ksi

Yield Strength (0.2% offset)

1,010 MPa146 ksi
1,300 MPa189 ksi
1,050 MPa152 ksi
1,650 MPa239 ksi

Elongation at Break

13%
8%
12%
7%

Reduction in Area

50%
40%
30%

Compressive Strength

1,010 MPa146 ksi
1,300 MPa189 ksi
1,100 MPa160 ksi
1,700 MPa247 ksi

Shear Strength

660 MPa95.7 ksi
960 MPa139 ksi
750 MPa109 ksi
1,200 MPa174 ksi

Fatigue Strength (Endurance Limit)

470 MPa68.2 ksi
650 MPa94.3 ksi
550 MPa79.8 ksi
750 MPa109 ksi

Fracture Toughness (K_IC)

90 MPa·√m81.9 ksi·√in
60 MPa·√m54.6 ksi·√in
70 MPa·√m63.7 ksi·√in
45 MPa·√m41 ksi·√in

Charpy V-Notch Impact (RT)

70 J51.6 ft·lbf
40 J29.5 ft·lbf
45 J33.2 ft·lbf
20 J14.8 ft·lbf

Hardness, Brinell

340 HB
500 HB
400 HB
600 HB

Hardness, Rockwell C

36 HRC
50 HRC
42 HRC
57 HRC

Hardness, Vickers

355 HV
530 HV
420 HV
635 HV

Same in both: Elastic (Young's) Modulus 210 GPa30.5 Msi

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,420°C2,588 °F
1,420°C2,588 °F
1,425°C2,597 °F
1,450°C2,642 °F

Liquidus Temperature

1,490°C2,714 °F
1,500°C2,732 °F
1,500°C2,732 °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

34 W/m·K19.6 BTU/hr·ft·°F
30 W/m·K17.3 BTU/hr·ft·°F
40 W/m·K23.1 BTU/hr·ft·°F
30 W/m·K17.3 BTU/hr·ft·°F

Latent Heat of Fusion

250 J/g107 BTU/lb
250 J/g107 BTU/lb
270 J/g116 BTU/lb
250 J/g107 BTU/lb

Min Service Temperature

-20°C-4 °F
-40°C-40 °F
-40°C-40 °F
-40°C-40 °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 · Max Service Temperature (continuous) 250°C482 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

7 % IACS
6 % IACS
8 % IACS

Electrical Resistivity

2.5×10⁻⁷ Ω·m9.84 µΩ·in
3×10⁻⁷ Ω·m11.8 µΩ·in
2.2×10⁻⁷ Ω·m8.66 µΩ·in
2.7×10⁻⁷ Ω·m10.6 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.6 V
-0.62 V
-0.62 V
-0.6 V

Corrosion Resistance

12 / 100
12 / 100
12 / 100
15 / 100

Manufacturability

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

Machinability

30 / 100
22 / 100
25 / 100
8 / 100

Machinability Rating (AISI 1212 = 100 %)

32%
18%
25%
7%

Weldability

50 / 100
55 / 100
55 / 100
30 / 100

Formability (cold)

32 / 100
25 / 100
30 / 100
12 / 100

Brazeability / Solderability

35 / 100
30 / 100

Polishability

60 / 100
60 / 100
55 / 100
55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Carbon (primary production)

2.4 kg CO₂/kg
2.2 kg CO₂/kg
2.3 kg CO₂/kg
2.3 kg CO₂/kg

Embodied Water

60 L/kg7.2 gal/lb
40 L/kg4.8 gal/lb
60 L/kg7.2 gal/lb
50 L/kg6 gal/lb

Typical Recycled Content

25%
25%
20%
25%

Same in both: Embodied Energy (primary production) 30 MJ/kg12,898 BTU/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

134 kN·m/kg
204 kN·m/kg
159 kN·m/kg
255 kN·m/kg

Modulus of Resilience

2,429 kJ/m³
4,024 kJ/m³
2,625 kJ/m³
6,482 kJ/m³

Thermal Diffusivity

9.2 mm²/s
8.1 mm²/s
10.8 mm²/s
8.1 mm²/s

Thermal Shock Resistance Index

14
19
20
24

Same in both: Specific Stiffness (E / density) 26.8 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 scaleHardox 500NM400Hardox 600Q960Q

Manufacturing and finishing

CapabilityQ960QHardox 500NM400Hardox 600
CNC machiningYesYes
Sheet metalYesYes
Default conditionQ&TQ&T
Relative cost$ Budget$$ Standard$$ Standard$$ Standard
Min. machined wall0.8 mm0.8 mm
Best machined surfaceRa 1.6 µmRa 1.6 µm
AlCrNYesYes
AlTiNYesYes
Black OxideYesYes
CVD Al2O3YesYes
CVD TiCNYesYes
CVD TiNYesYes
CerakoteYesYes
Chrome PlatingYesYes
CrNYesYes
DLCYesYes
E-CoatingYesYes
HVOF CoatingYesYes
Hot-Dip GalvanizingYesYes
MoS2YesYes
Multilayer CVDYesYes
Nickel PlatingYesYes
PTFE CoatingYesYes
PaintingYesYes

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

Ready to make it?

Upload a CAD file and FabDigit prices the part in Q960Q and Hardox 500 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.