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Steel 08F vs DC05

Steel · grade comparison

Steel 08F and DC05 are both steel grades. 08F is the stronger of the two: yield strength 200 MPa (29 ksi) against 160 MPa (23.2 ksi) for DC05, about 25% more; tensile strength follows at 330 MPa (47.9 ksi) vs 300 MPa (43.5 ksi). In exchange, DC05 is the more ductile: elongation 42% versus 36% for 08F, and 08F is harder (105 HB vs 85 HB). 08F runs hotter in service (400°C vs 300°C continuous). On the shop floor, DC05 machines more easily (good vs fair).

08FChoose it when strength drives the design, or when the part sees heat.

DC05Choose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

08F vs DC05: properties

08FDC05

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

330 MPa47.9 ksi
300 MPa43.5 ksi

Yield Strength (0.2% offset)

200 MPa29 ksi
160 MPa23.2 ksi

Elongation at Break

36%
42%

Reduction in Area

62%
70%

Compressive Strength

200 MPa29 ksi
—

Shear Strength

220 MPa31.9 ksi
225 MPa32.6 ksi

Fatigue Strength (Endurance Limit)

160 MPa23.2 ksi
150 MPa21.8 ksi

Fracture Toughness (K_IC)

120 MPa·√m109 ksi·√in
140 MPa·√m127 ksi·√in

Charpy V-Notch Impact (RT)

70 J51.6 ft·lbf
80 J59 ft·lbf

Hardness, Brinell

105 HB
85 HB

Hardness, Rockwell B

55 HRB
42 HRB

Hardness, Vickers

110 HV
90 HV

Same in both: Elastic (Young's) Modulus 210 GPa30.5 Msi · Shear Modulus 81 GPa11.7 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,495°C2,723 °F
1,480°C2,696 °F

Liquidus Temperature

1,527°C2,781 °F
1,525°C2,777 °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

60 W/m·K34.7 BTU/hr·ft·°F
55 W/m·K31.8 BTU/hr·ft·°F

Specific Heat Capacity

480 J/kg·K0.11 BTU/lb·°F
470 J/kg·K0.11 BTU/lb·°F

Latent Heat of Fusion

270 J/g116 BTU/lb
247 J/g106 BTU/lb

Max Service Temperature (continuous)

400°C752 °F
300°C572 °F

Min Service Temperature

-20°C-4 °F
-40°C-40 °F

Same in both: Thermal Expansion (CTE, 20–100 °C) 12 µm/m·K6.7 µin/in·°F

Electrical

Conductivity and insulation.

Electrical Conductivity

12 % IACS
11.5 % IACS

Electrical Resistivity

1.4×10⁻⁷ Ω·m5.51 µΩ·in
1.5×10⁻⁷ Ω·m5.91 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.61 V
-0.62 V

Same in both: Corrosion Resistance 10 / 100

Manufacturability

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

Machinability

45 / 100
55 / 100

Formability (cold)

88 / 100
97 / 100

Polishability

45 / 100
60 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 55% · Weldability 95 / 100 · Brazeability / Solderability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

25 MJ/kg10,748 BTU/lb
29 MJ/kg12,468 BTU/lb

Embodied Carbon (primary production)

2.1 kg CO₂/kg
2.4 kg CO₂/kg

Embodied Water

40 L/kg4.8 gal/lb
35 L/kg4.2 gal/lb

Typical Recycled Content

20%
25%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

42 kN·m/kg
38 kN·m/kg

Modulus of Resilience

95 kJ/m³
61 kJ/m³

Thermal Diffusivity

15.9 mm²/s
14.9 mm²/s

Thermal Shock Resistance Index

8
7

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 scaleDC0508F

Manufacturing and finishing

Capability08FDC05
Default condition——
Relative cost$ Budget$ Budget
Min. machined wall——
Best machined surface——

Both take the same 9 finishes: Copper Plating, Electroless Nickel (EN), Epoxy Coating, Gold Plating, Hard Chrome Plating, Manganese Phosphate, Plasma Spray, Silver Plating, Zinc Phosphate.

08F vs DC05 — frequently asked

Is 08F stronger than DC05?

Yes. 08F has a typical yield strength of 200 MPa (29 ksi) against 160 MPa (23.2 ksi) for DC05 — about 25% more. Tensile strength is 330 MPa (47.9 ksi) vs 300 MPa (43.5 ksi).

Which is cheaper, 08F or DC05?

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, 08F or DC05?

DC05. Its machinability rates good (55/100) against fair (45/100) for 08F.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 08F and DC05 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.