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Steel A1008 vs DC03

Steel · grade comparison

Steel A1008 and DC03 are both steel grades. A1008 is the stronger of the two: yield strength 240 MPa (34.8 ksi) against 195 MPa (28.3 ksi) for DC03, about 23% more; tensile strength follows at 330 MPa (47.9 ksi) vs 310 MPa (45 ksi). DC03 is harder — 55 HRB against 50 HRB for A1008 — which matters for wear surfaces and threads. A1008 runs hotter in service (400°C vs 350°C continuous).

A1008Choose it when strength drives the design, or when the part sees heat.

DC03Choose it when surface hardness matters.

A1008 vs DC03: properties

A1008DC03

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

200 GPa29 Msi
210 GPa30.5 Msi

Shear Modulus

79 GPa11.5 Msi
80 GPa11.6 Msi

Tensile Strength (Ultimate)

330 MPa47.9 ksi
310 MPa45 ksi

Yield Strength (0.2% offset)

240 MPa34.8 ksi
195 MPa28.3 ksi

Compressive Strength

240 MPa34.8 ksi
—

Shear Strength

220 MPa31.9 ksi
230 MPa33.4 ksi

Fatigue Strength (Endurance Limit)

165 MPa23.9 ksi
145 MPa21 ksi

Fracture Toughness (K_IC)

110 MPa·√m100 ksi·√in
—

Charpy V-Notch Impact (RT)

65 J47.9 ft·lbf
—

Hardness, Rockwell B

50 HRB
55 HRB

Hardness, Vickers

105 HV
100 HV

Same in both: Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Elongation at Break 38% · Reduction in Area 65% · Hardness, Brinell 95 HB

Physical

Density and transition temperatures.

Density

7.87 g/cm³0.28 lb/in³
7.85 g/cm³0.28 lb/in³

Melting Point (Solidus)

1,495°C2,723 °F
1,490°C2,714 °F

Same in both: Liquidus Temperature 1,525°C2,777 °F

Thermal

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

Thermal Conductivity

51.9 W/m·K30 BTU/hr·ft·°F
54 W/m·K31.2 BTU/hr·ft·°F

Specific Heat Capacity

486 J/kg·K0.12 BTU/lb·°F
470 J/kg·K0.11 BTU/lb·°F

Max Service Temperature (continuous)

400°C752 °F
350°C662 °F

Min Service Temperature

-40°C-40 °F
-30°C-22 °F

Same in both: Thermal Expansion (CTE, 20–100 °C) 12 µm/m·K6.7 µin/in·°F · Latent Heat of Fusion 247 J/g106 BTU/lb

Electrical

Conductivity and insulation.

Electrical Conductivity

10.8 % IACS
11 % IACS

Same in both: Electrical Resistivity 1.6×10⁻⁷ Ω·m6.3 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.65 V
-0.61 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
50 / 100

Brazeability / Solderability

65 / 100
70 / 100

Polishability

45 / 100
50 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 55% · Weldability 95 / 100 · Formability (cold) 88 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

27 MJ/kg11,608 BTU/lb
28 MJ/kg12,038 BTU/lb

Embodied Water

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

Same in both: Embodied Carbon (primary production) 2.3 kg CO₂/kg · Typical Recycled Content 25%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

42 kN·m/kg
39 kN·m/kg

Specific Stiffness (E / density)

25.4 MN·m/kg
26.8 MN·m/kg

Modulus of Resilience

144 kJ/m³
91 kJ/m³

Thermal Diffusivity

13.6 mm²/s
14.6 mm²/s

Same in both: 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 scaleDC03A1008

Manufacturing and finishing

CapabilityA1008DC03
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.

A1008 vs DC03 — frequently asked

Is A1008 stronger than DC03?

Yes. A1008 has a typical yield strength of 240 MPa (34.8 ksi) against 195 MPa (28.3 ksi) for DC03 — about 23% more. Tensile strength is 330 MPa (47.9 ksi) vs 310 MPa (45 ksi).

Which is cheaper, A1008 or DC03?

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, A1008 or DC03?

A1008. Its machinability rates good (55/100) against fair (50/100) for DC03.

Ready to make it?

Upload a CAD file and FabDigit prices the part in A1008 and DC03 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.