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Steel DC05 vs DD13

Steel · grade comparison

Steel DC05 and DD13 are both steel grades. DD13 is the stronger of the two: yield strength 230 MPa (33.4 ksi) against 160 MPa (23.2 ksi) for DC05, about 44% more; tensile strength follows at 340 MPa (49.3 ksi) vs 300 MPa (43.5 ksi). In exchange, DC05 is the more ductile: elongation 42% versus 36% for DD13, and DD13 is harder (105 HB vs 85 HB). DD13 runs hotter in service (350°C vs 300°C continuous).

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

DD13Choose it when strength drives the design, or when the part sees heat.

DC05 vs DD13: properties

DC05DD13

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

300 MPa43.5 ksi
340 MPa49.3 ksi

Yield Strength (0.2% offset)

160 MPa23.2 ksi
230 MPa33.4 ksi

Elongation at Break

42%
36%

Reduction in Area

70%
65%

Shear Strength

225 MPa32.6 ksi
230 MPa33.4 ksi

Fatigue Strength (Endurance Limit)

150 MPa21.8 ksi
160 MPa23.2 ksi

Fracture Toughness (K_IC)

140 MPa·√m127 ksi·√in
—

Charpy V-Notch Impact (RT)

80 J59 ft·lbf
60 J44.3 ft·lbf

Hardness, Brinell

85 HB
105 HB

Hardness, Rockwell B

42 HRB
58 HRB

Hardness, Vickers

90 HV
110 HV

Compressive Strength

—
230 MPa33.4 ksi

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)

1,480°C2,696 °F
1,495°C2,723 °F

Same in both: Density 7.85 g/cm³0.28 lb/in³ · Liquidus Temperature 1,525°C2,777 °F

Thermal

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

Thermal Conductivity

55 W/m·K31.8 BTU/hr·ft·°F
52 W/m·K30 BTU/hr·ft·°F

Latent Heat of Fusion

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

Max Service Temperature (continuous)

300°C572 °F
350°C662 °F

Min Service Temperature

-40°C-40 °F
-20°C-4 °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

Electrical

Conductivity and insulation.

Electrical Conductivity

11.5 % IACS
11 % IACS

Electrical Resistivity

1.5×10⁻⁷ Ω·m5.91 µΩ·in
1.6×10⁻⁷ Ω·m6.3 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.62 V
-0.65 V

Same in both: Corrosion Resistance 10 / 100

Manufacturability

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

Machinability

55 / 100
58 / 100

Weldability

95 / 100
96 / 100

Formability (cold)

97 / 100
90 / 100

Brazeability / Solderability

70 / 100
65 / 100

Polishability

60 / 100
40 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 55%

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

29 MJ/kg12,468 BTU/lb
23 MJ/kg9,888 BTU/lb

Embodied Carbon (primary production)

2.4 kg CO₂/kg
2 kg CO₂/kg

Same in both: Embodied Water 35 L/kg4.2 gal/lb · Typical Recycled Content 25%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

38 kN·m/kg
43 kN·m/kg

Modulus of Resilience

61 kJ/m³
126 kJ/m³

Thermal Diffusivity

14.9 mm²/s
14.1 mm²/s

Same in both: Specific Stiffness (E / density) 26.8 MN·m/kg · Thermal Shock Resistance Index 7

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 scaleDC05DD13

Manufacturing and finishing

CapabilityDC05DD13
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.

DC05 vs DD13 — frequently asked

Is DD13 stronger than DC05?

Yes. DD13 has a typical yield strength of 230 MPa (33.4 ksi) against 160 MPa (23.2 ksi) for DC05 — about 44% more. Tensile strength is 340 MPa (49.3 ksi) vs 300 MPa (43.5 ksi).

Which is cheaper, DC05 or DD13?

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.

When should I choose DC05 over DD13?

Pick DC05 when the part is bent, formed or impact-loaded. Pick DD13 when strength drives the design, or when the part sees heat.

Ready to make it?

Upload a CAD file and FabDigit prices the part in DC05 and DD13 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.