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Steel CP1000 vs Ductibor 500

Steel · grade comparison

Steel CP1000 and Ductibor 500 are both steel grades. CP1000 is the stronger of the two: yield strength 800 MPa (116 ksi) against 420 MPa (60.9 ksi) for Ductibor 500, about 90% more; tensile strength follows at 1,050 MPa (152 ksi) vs 620 MPa (89.9 ksi). In exchange, Ductibor 500 is the more ductile: elongation 17% versus 8% for CP1000, and CP1000 is harder (315 HB vs 185 HB). Ductibor 500 runs hotter in service (250°C vs 200°C continuous) and Ductibor 500 conducts heat better (45 W/m·K vs 32 W/m·K). On the shop floor, Ductibor 500 machines more easily (good vs poor), Ductibor 500 welds better (very good vs good), and Ductibor 500 sits in a lower cost tier (budget, $) than CP1000 (standard, $$).

CP1000Choose it when strength drives the design.

Ductibor 500Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

CP1000 vs Ductibor 500: properties

CP1000Ductibor 500

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Shear Modulus

80 GPa11.6 Msi
81 GPa11.7 Msi

Poisson's Ratio

0.3
0.29

Tensile Strength (Ultimate)

1,050 MPa152 ksi
620 MPa89.9 ksi

Yield Strength (0.2% offset)

800 MPa116 ksi
420 MPa60.9 ksi

Elongation at Break

8%
17%

Reduction in Area

30%
55%

Compressive Strength

1,050 MPa152 ksi
—

Shear Strength

655 MPa95 ksi
400 MPa58 ksi

Fatigue Strength (Endurance Limit)

470 MPa68.2 ksi
280 MPa40.6 ksi

Fracture Toughness (K_IC)

50 MPa·√m45.5 ksi·√in
—

Charpy V-Notch Impact (RT)

25 J18.4 ft·lbf
60 J44.3 ft·lbf

Hardness, Brinell

315 HB
185 HB

Hardness, Rockwell C

33 HRC
—

Hardness, Vickers

330 HV
195 HV

Hardness, Rockwell B

—
90 HRB

Same in both: Elastic (Young's) Modulus 210 GPa30.5 Msi · Bulk Modulus 160 GPa23.2 Msi

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,490°C2,714 °F
1,465°C2,669 °F

Liquidus Temperature

1,520°C2,768 °F
1,510°C2,750 °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

32 W/m·K18.5 BTU/hr·ft·°F
45 W/m·K26 BTU/hr·ft·°F

Max Service Temperature (continuous)

200°C392 °F
250°C482 °F

Min Service Temperature

-40°C-40 °F
-60°C-76 °F

Same in both: Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12.5 µm/m·K6.9 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb

Electrical

Conductivity and insulation.

Electrical Resistivity

2.2×10⁻⁷ Ω·m8.66 µΩ·in
2.1×10⁻⁷ Ω·m8.27 µΩ·in

Same in both: Electrical Conductivity 8 % IACS

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.6 V
-0.62 V

Corrosion Resistance

12 / 100
28 / 100

Manufacturability

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

Machinability

28 / 100
55 / 100

Machinability Rating (AISI 1212 = 100 %)

25%
60%

Weldability

65 / 100
80 / 100

Formability (cold)

35 / 100
55 / 100

Brazeability / Solderability

40 / 100
45 / 100

Polishability

55 / 100
40 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

30 MJ/kg12,898 BTU/lb
27 MJ/kg11,608 BTU/lb

Embodied Water

45 L/kg5.4 gal/lb
40 L/kg4.8 gal/lb

Typical Recycled Content

25%
22%

Same in both: Embodied Carbon (primary production) 2.3 kg CO₂/kg

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

134 kN·m/kg
79 kN·m/kg

Modulus of Resilience

1,524 kJ/m³
420 kJ/m³

Thermal Diffusivity

8.7 mm²/s
12.2 mm²/s

Thermal Shock Resistance Index

13
11

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 scaleCP1000Ductibor 500

Manufacturing and finishing

CapabilityCP1000Ductibor 500
Sheet metalYes—
Default conditionCR—
Relative cost$$ Standard$ Budget
Min. machined wall——
Best machined surface——
Black OxideYes—
CerakoteYes—
Chrome PlatingYes—
E-CoatingYes—
Hot-Dip GalvanizingYes—
Nickel PlatingYes—
PTFE CoatingYes—
PaintingYes—
Powder CoatingYes—
Tin PlatingYes—
Zinc PlatingYes—
Zinc-Flake (Dip-Spin) CoatingYes—
Zinc-Nickel PlatingYes—

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

CP1000 vs Ductibor 500 — frequently asked

Is CP1000 stronger than Ductibor 500?

Yes. CP1000 has a typical yield strength of 800 MPa (116 ksi) against 420 MPa (60.9 ksi) for Ductibor 500 — about 90% more. Tensile strength is 1,050 MPa (152 ksi) vs 620 MPa (89.9 ksi).

Which is cheaper, CP1000 or Ductibor 500?

Ductibor 500 is the lower-cost material: it sits in the budget tier ($) while CP1000 is standard ($$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which is easier to machine, CP1000 or Ductibor 500?

Ductibor 500. Its machinability rates good (55/100) against poor (28/100) for CP1000; for welding the order is Ductibor 500 first (very good, 80/100) then CP1000 (good, 65/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in CP1000 and Ductibor 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.