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Steel DC03 vs HC260LA

Steel · grade comparison

Steel DC03 and HC260LA are both steel grades. HC260LA is the stronger of the two: yield strength 295 MPa (42.8 ksi) against 195 MPa (28.3 ksi) for DC03, about 51% more; tensile strength follows at 390 MPa (56.6 ksi) vs 310 MPa (45 ksi). In exchange, DC03 is the more ductile: elongation 38% versus 30% for HC260LA, and HC260LA is harder (115 HB vs 95 HB). DC03 conducts heat better (54 W/m·K vs 48 W/m·K).

DC03Choose it when the part is bent, formed or impact-loaded.

HC260LAChoose it when strength drives the design.

DC03 vs HC260LA: properties

DC03HC260LA

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Shear Modulus

80 GPa11.6 Msi
81 GPa11.7 Msi

Poisson's Ratio

0.29
0.3

Tensile Strength (Ultimate)

310 MPa45 ksi
390 MPa56.6 ksi

Yield Strength (0.2% offset)

195 MPa28.3 ksi
295 MPa42.8 ksi

Elongation at Break

38%
30%

Reduction in Area

65%
60%

Shear Strength

230 MPa33.4 ksi
250 MPa36.3 ksi

Fatigue Strength (Endurance Limit)

145 MPa21 ksi
190 MPa27.6 ksi

Hardness, Brinell

95 HB
115 HB

Hardness, Rockwell B

55 HRB
70 HRB

Hardness, Vickers

100 HV
122 HV

Compressive Strength

—
295 MPa42.8 ksi

Fracture Toughness (K_IC)

—
100 MPa·√m91 ksi·√in

Charpy V-Notch Impact (RT)

—
40 J29.5 ft·lbf

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
1,500°C2,732 °F

Liquidus Temperature

1,525°C2,777 °F
1,530°C2,786 °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

54 W/m·K31.2 BTU/hr·ft·°F
48 W/m·K27.7 BTU/hr·ft·°F

Latent Heat of Fusion

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

Min Service Temperature

-30°C-22 °F
-40°C-40 °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 · Max Service Temperature (continuous) 350°C662 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

11 % IACS
10 % IACS

Electrical Resistivity

1.6×10⁻⁷ Ω·m6.3 µΩ·in
1.7×10⁻⁷ Ω·m6.69 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

10 / 100
12 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.61 V

Manufacturability

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

Machinability

50 / 100
55 / 100

Machinability Rating (AISI 1212 = 100 %)

55%
60%

Weldability

95 / 100
90 / 100

Formability (cold)

88 / 100
70 / 100

Brazeability / Solderability

70 / 100
65 / 100

Same in both: Polishability 50 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

28 MJ/kg12,038 BTU/lb
30 MJ/kg12,898 BTU/lb

Embodied Carbon (primary production)

2.3 kg CO₂/kg
2.4 kg CO₂/kg

Same in both: Embodied Water 40 L/kg4.8 gal/lb · Typical Recycled Content 25%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

39 kN·m/kg
50 kN·m/kg

Modulus of Resilience

91 kJ/m³
207 kJ/m³

Thermal Diffusivity

14.6 mm²/s
13 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 scaleDC03HC260LA

Manufacturing and finishing

CapabilityDC03HC260LA
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.

DC03 vs HC260LA — frequently asked

Is HC260LA stronger than DC03?

Yes. HC260LA has a typical yield strength of 295 MPa (42.8 ksi) against 195 MPa (28.3 ksi) for DC03 — about 51% more. Tensile strength is 390 MPa (56.6 ksi) vs 310 MPa (45 ksi).

Which is cheaper, DC03 or HC260LA?

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, DC03 or HC260LA?

HC260LA. Its machinability rates good (55/100) against fair (50/100) for DC03; for welding the order is DC03 first (excellent, 95/100) then HC260LA (excellent, 90/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in DC03 and HC260LA 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.