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Steel 1010 vs 1015

Steel · grade comparison

Steel 1010 and 1015 are both steel grades, both low carbon steel. 1015 is the stronger of the two: yield strength 190 MPa (27.6 ksi) against 180 MPa (26.1 ksi) for 1010, about 6% more; tensile strength follows at 345 MPa (50 ksi) vs 325 MPa (47.1 ksi). 1015 is harder — 101 HB against 95 HB for 1010 — which matters for wear surfaces and threads. On the shop floor, 1015 machines more easily (52 vs 42 out of 100).

1015Choose it when strength drives the design, or when surface hardness matters.

1010 vs 1015: properties

10101015

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
345 MPa50 ksi

Yield Strength (0.2% offset)

180 MPa26.1 ksi
190 MPa27.6 ksi

Shear Strength

220 MPa31.9 ksi
240 MPa34.8 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
85 J62.7 ft·lbf

Hardness, Brinell

95 HB
101 HB

Hardness, Rockwell B

55 HRB
56 HRB

Hardness, Vickers

100 HV
—

Compressive Strength

—
190 MPa27.6 ksi

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.

Liquidus Temperature

1,525°C2,777 °F
1,520°C2,768 °F

Same in both: Density 7.87 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,495°C2,723 °F

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
11.9 µm/m·K6.6 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).

Same in both: Galvanic Potential (seawater, vs SCE) -0.61 V · Corrosion Resistance 10 / 100

Manufacturability

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

Machinability

42 / 100
52 / 100

Machinability Rating (AISI 1212 = 100 %)

55%
60%

Formability (cold)

90 / 100
85 / 100

Brazeability / Solderability

80 / 100
75 / 100

Polishability

40 / 100
50 / 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 Carbon (primary production)

1.9 kg CO₂/kg
2 kg CO₂/kg

Embodied Water

35 L/kg4.2 gal/lb
40 L/kg4.8 gal/lb

Same in both: Typical Recycled Content 30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

41 kN·m/kg
44 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 scale10101015

Manufacturing and finishing

Capability10101015
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 1015 — frequently asked

Is 1015 stronger than 1010?

Yes. 1015 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 345 MPa (50 ksi) vs 325 MPa (47.1 ksi).

Which is cheaper, 1010 or 1015?

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 1015?

1015, by a small margin. Both rate fair for machinability — 52/100 against 42/100 for 1010.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1010 and 1015 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.