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Steel 1010 vs CQ15

Steel · grade comparison

Steel 1010 and CQ15 are both steel grades, both low carbon steel. CQ15 is the stronger of the two: yield strength 190 MPa (27.6 ksi) against 180 MPa (26.1 ksi) for 1010, about 6% more. CQ15 is harder — 101 HB against 95 HB for 1010 — which matters for wear surfaces and threads. On the shop floor, CQ15 machines more easily (good vs fair).

CQ15Choose it when strength drives the design, or when surface hardness matters.

1010 vs CQ15: properties

1010CQ15

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

200 GPa29 Msi
205 GPa29.7 Msi

Tensile Strength (Ultimate)

325 MPa47.1 ksi
340 MPa49.3 ksi

Yield Strength (0.2% offset)

180 MPa26.1 ksi
190 MPa27.6 ksi

Shear Strength

220 MPa31.9 ksi
225 MPa32.6 ksi

Fatigue Strength (Endurance Limit)

160 MPa23.2 ksi
170 MPa24.7 ksi

Fracture Toughness (K_IC)

140 MPa·√m127 ksi·√in
—

Charpy V-Notch Impact (RT)

95 J70.1 ft·lbf
80 J59 ft·lbf

Hardness, Brinell

95 HB
101 HB

Hardness, Rockwell B

55 HRB
56 HRB

Hardness, Vickers

100 HV
—

Same in both: Shear Modulus 80 GPa11.6 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Elongation at Break 28% · Reduction in Area 50%

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,495°C2,723 °F
1,470°C2,678 °F

Liquidus Temperature

1,525°C2,777 °F
1,520°C2,768 °F

Same in both: Density 7.87 g/cm³0.28 lb/in³

Thermal

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

Thermal Conductivity

49.8 W/m·K28.8 BTU/hr·ft·°F
51.9 W/m·K30 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

12.2 µm/m·K6.8 µin/in·°F
12 µm/m·K6.7 µin/in·°F

Same in both: Latent Heat of Fusion 247 J/g106 BTU/lb · Max Service Temperature (continuous) 400°C752 °F · Min Service Temperature -30°C-22 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

12 % IACS
10.8 % IACS

Electrical Resistivity

1.43×10⁻⁷ Ω·m5.63 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)

-0.61 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

42 / 100
55 / 100

Machinability Rating (AISI 1212 = 100 %)

55%
60%

Formability (cold)

90 / 100
82 / 100

Brazeability / Solderability

80 / 100
70 / 100

Polishability

40 / 100
45 / 100

Same in both: Weldability 95 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

24 MJ/kg10,318 BTU/lb
25 MJ/kg10,748 BTU/lb

Embodied Water

35 L/kg4.2 gal/lb
30 L/kg3.6 gal/lb

Same in both: Embodied Carbon (primary production) 1.9 kg CO₂/kg · Typical Recycled Content 30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

41 kN·m/kg
43 kN·m/kg

Specific Stiffness (E / density)

25.4 MN·m/kg
26 MN·m/kg

Modulus of Resilience

81 kJ/m³
88 kJ/m³

Thermal Diffusivity

14.1 mm²/s
13.6 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 scale1010CQ15

Manufacturing and finishing

Capability1010CQ15
Default conditionHRHR
Relative cost$ Budget$ Budget
Min. machined wall0.8 mm0.8 mm
Best machined surfaceRa 1.6 µmRa 1.6 µm

Both are offered for CNC machining and Sheet metal. Both take the same 38 finishes: AlCrN, AlTiN, Black Oxide, CVD Al2O3, CVD TiCN, CVD TiN, Cerakote, Chrome Plating, Copper Plating, CrN, DLC, E-Coating and 26 more.

1010 vs CQ15 — frequently asked

Is CQ15 stronger than 1010?

Yes. CQ15 has a typical yield strength of 190 MPa (27.6 ksi) against 180 MPa (26.1 ksi) for 1010 — about 6% more. Tensile strength is 340 MPa (49.3 ksi) vs 325 MPa (47.1 ksi).

Which is cheaper, 1010 or CQ15?

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, 1010 or CQ15?

CQ15. Its machinability rates good (55/100) against fair (42/100) for 1010.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1010 and CQ15 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.