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Steel Creusabro 4000 vs Hardox 500

Steel · grade comparison

Steel Creusabro 4000 and Hardox 500 are both steel grades. Hardox 500 is the stronger of the two: yield strength 1,300 MPa (189 ksi) against 1,000 MPa (145 ksi) for Creusabro 4000, about 30% more; tensile strength follows at 1,600 MPa (232 ksi) vs 1,250 MPa (181 ksi). In exchange, Creusabro 4000 is the more ductile: elongation 12% versus 8% for Hardox 500, and Hardox 500 is harder (500 HB vs 400 HB). Creusabro 4000 runs hotter in service (400°C vs 250°C continuous) and Creusabro 4000 conducts heat better (36 W/m·K vs 30 W/m·K).

Creusabro 4000Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

Hardox 500Choose it when strength drives the design.

Creusabro 4000 vs Hardox 500: properties

Creusabro 4000Hardox 500

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

205 GPa29.7 Msi
210 GPa30.5 Msi

Shear Modulus

79 GPa11.5 Msi
80 GPa11.6 Msi

Bulk Modulus

165 GPa23.9 Msi
160 GPa23.2 Msi

Tensile Strength (Ultimate)

1,250 MPa181 ksi
1,600 MPa232 ksi

Yield Strength (0.2% offset)

1,000 MPa145 ksi
1,300 MPa189 ksi

Elongation at Break

12%
8%

Reduction in Area

45%
—

Compressive Strength

1,050 MPa152 ksi
1,300 MPa189 ksi

Shear Strength

760 MPa110 ksi
960 MPa139 ksi

Fatigue Strength (Endurance Limit)

550 MPa79.8 ksi
650 MPa94.3 ksi

Fracture Toughness (K_IC)

70 MPa·√m63.7 ksi·√in
60 MPa·√m54.6 ksi·√in

Charpy V-Notch Impact (RT)

60 J44.3 ft·lbf
40 J29.5 ft·lbf

Hardness, Brinell

400 HB
500 HB

Hardness, Rockwell C

42 HRC
50 HRC

Hardness, Vickers

420 HV
530 HV

Same in both: Poisson's Ratio 0.3

Physical

Density and transition temperatures.

Same in both: Density 7.85 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,420°C2,588 °F · Liquidus Temperature 1,500°C2,732 °F

Thermal

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

Thermal Conductivity

36 W/m·K20.8 BTU/hr·ft·°F
30 W/m·K17.3 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

12.5 µm/m·K6.9 µin/in·°F
12 µm/m·K6.7 µin/in·°F

Latent Heat of Fusion

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

Max Service Temperature (continuous)

400°C752 °F
250°C482 °F

Min Service Temperature

-20°C-4 °F
-40°C-40 °F

Same in both: Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F

Electrical

Conductivity and insulation.

Electrical Resistivity

2.4×10⁻⁷ Ω·m9.45 µΩ·in
3×10⁻⁷ Ω·m11.8 µΩ·in

Electrical Conductivity

—
6 % IACS

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

15 / 100
12 / 100

Galvanic Potential (seawater, vs SCE)

—
-0.62 V

Manufacturability

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

Machinability

25 / 100
22 / 100

Machinability Rating (AISI 1212 = 100 %)

20%
18%

Weldability

60 / 100
55 / 100

Formability (cold)

45 / 100
25 / 100

Polishability

45 / 100
60 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

32 MJ/kg13,758 BTU/lb
30 MJ/kg12,898 BTU/lb

Embodied Carbon (primary production)

2.3 kg CO₂/kg
2.2 kg CO₂/kg

Embodied Water

55 L/kg6.6 gal/lb
40 L/kg4.8 gal/lb

Typical Recycled Content

30%
25%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

159 kN·m/kg
204 kN·m/kg

Specific Stiffness (E / density)

26.1 MN·m/kg
26.8 MN·m/kg

Modulus of Resilience

2,439 kJ/m³
4,024 kJ/m³

Thermal Diffusivity

9.8 mm²/s
8.1 mm²/s

Thermal Shock Resistance Index

18
19

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 500Creusabro 4000

Manufacturing and finishing

CapabilityCreusabro 4000Hardox 500
CNC machining—Yes
Sheet metal—Yes
Default condition—Q&T
Relative cost$$ Standard$$ Standard
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.

Creusabro 4000 vs Hardox 500 — frequently asked

Is Hardox 500 stronger than Creusabro 4000?

Yes. Hardox 500 has a typical yield strength of 1,300 MPa (189 ksi) against 1,000 MPa (145 ksi) for Creusabro 4000 — about 30% more. Tensile strength is 1,600 MPa (232 ksi) vs 1,250 MPa (181 ksi).

Which is cheaper, Creusabro 4000 or Hardox 500?

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

Which welds better, Creusabro 4000 or Hardox 500?

Creusabro 4000. Its weldability rates good (60/100) against good (55/100) for Hardox 500.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Creusabro 4000 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.