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Steel DC06-CR vs DC06-LC

Steel · DC06 temper comparison

DC06-CR and DC06-LC are two conditions of the same steel grade, DC06: CR (cold rolled) versus LC (annealed last (not skin-passed), maximum softness). The chemistry is identical, so every difference below comes from the condition. DC06-CR is the stronger of the two: yield strength 150 MPa (21.8 ksi) against 130 MPa (18.9 ksi) for DC06-LC, about 15% more; tensile strength follows at 300 MPa (43.5 ksi) vs 285 MPa (41.3 ksi). DC06-CR is harder — 88 HB against 82 HB for DC06-LC — which matters for wear surfaces and threads.

DC06-CRChoose it when strength drives the design, or when surface hardness matters.

DC06-CR vs DC06-LC: properties

DC06-CRDC06-LC

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

300 MPa43.5 ksi
285 MPa41.3 ksi

Yield Strength (0.2% offset)

150 MPa21.8 ksi
130 MPa18.9 ksi

Elongation at Break

42%
45%

Reduction in Area

70%
72%

Compressive Strength

150 MPa21.8 ksi
130 MPa18.9 ksi

Shear Strength

200 MPa29 ksi
190 MPa27.6 ksi

Fatigue Strength (Endurance Limit)

145 MPa21 ksi
140 MPa20.3 ksi

Charpy V-Notch Impact (RT)

55 J40.6 ft·lbf
60 J44.3 ft·lbf

Hardness, Brinell

88 HB
82 HB

Hardness, Rockwell B

42 HRB
36 HRB

Hardness, Vickers

92 HV
86 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 · Fracture Toughness (K_IC) 140 MPa·√m127 ksi·√in

Physical

Density and transition temperatures.

Same in both: Density 7.85 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,500°C2,732 °F · Liquidus Temperature 1,535°C2,795 °F

Thermal

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

Same in both: Thermal Conductivity 58 W/m·K33.5 BTU/hr·ft·°F · 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 · Latent Heat of Fusion 247 J/g106 BTU/lb · Max Service Temperature (continuous) 250°C482 °F · Min Service Temperature -40°C-40 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 13 % IACS · Electrical Resistivity 1.4×10⁻⁷ Ω·m5.51 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.6 V · Corrosion Resistance 10 / 100

Manufacturability

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

Machinability

45 / 100
40 / 100

Machinability Rating (AISI 1212 = 100 %)

50%
45%

Weldability

95 / 100
96 / 100

Formability (cold)

99 / 100
100 / 100

Same in both: Brazeability / Solderability 65 / 100 · Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 26 MJ/kg11,178 BTU/lb · Embodied Carbon (primary production) 2.2 kg CO₂/kg · Embodied Water 35 L/kg4.2 gal/lb · Typical Recycled Content 20%

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 scaleDC06

DC06-CR vs DC06-LC — frequently asked

Is DC06-CR stronger than DC06-LC?

Yes. DC06-CR has a typical yield strength of 150 MPa (21.8 ksi) against 130 MPa (18.9 ksi) for DC06-LC — about 15% more. Tensile strength is 300 MPa (43.5 ksi) vs 285 MPa (41.3 ksi).

Which condition does FabDigit quote by default, CR or LC?

CR is the default DC06 condition in the FabDigit quote flow. The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.

Which is easier to machine, DC06-CR or DC06-LC?

DC06-CR, by a small margin. Both rate fair for machinability — 45/100 against 40/100 for DC06-LC.

Ready to make it?

Upload a CAD file and FabDigit prices the part in DC06-CR and DC06-LC 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.