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Steel 1010 vs 1020

Steel · grade comparison

Steel 1010 and 1020 are both steel grades, both low carbon steel. 1020 is the stronger of the two: yield strength 350 MPa (50.8 ksi) against 180 MPa (26.1 ksi) for 1010, about 94% more; tensile strength follows at 420 MPa (60.9 ksi) vs 325 MPa (47.1 ksi). In exchange, 1010 is the more ductile: elongation 28% versus 15% for 1020, and 1020 is harder (121 HB vs 95 HB). On the shop floor, 1020 machines more easily (good vs fair).

1010Choose it when the part is bent, formed or impact-loaded.

1020Choose it when strength drives the design, or when the part is machined in volume.

1010 vs 1020: properties

10101020

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

200 GPa29 Msi
205 GPa29.7 Msi

Bulk Modulus

160 GPa23.2 Msi
140 GPa20.3 Msi

Tensile Strength (Ultimate)

325 MPa47.1 ksi
420 MPa60.9 ksi

Yield Strength (0.2% offset)

180 MPa26.1 ksi
350 MPa50.8 ksi

Elongation at Break

28%
15%

Reduction in Area

50%
40%

Shear Strength

220 MPa31.9 ksi
310 MPa45 ksi

Fatigue Strength (Endurance Limit)

160 MPa23.2 ksi
230 MPa33.4 ksi

Fracture Toughness (K_IC)

140 MPa·√m127 ksi·√in
90 MPa·√m81.9 ksi·√in

Charpy V-Notch Impact (RT)

95 J70.1 ft·lbf
45 J33.2 ft·lbf

Hardness, Brinell

95 HB
121 HB

Hardness, Rockwell B

55 HRB
68 HRB

Hardness, Vickers

100 HV
127 HV

Compressive Strength

—
350 MPa50.8 ksi

Same in both: Shear Modulus 80 GPa11.6 Msi · Poisson's Ratio 0.29

Physical

Density and transition temperatures.

Liquidus Temperature

1,525°C2,777 °F
1,518°C2,764 °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
11.7 µm/m·K6.5 µin/in·°F

Max Service Temperature (continuous)

400°C752 °F
425°C797 °F

Min Service Temperature

-30°C-22 °F
-20°C-4 °F

Same in both: Latent Heat of Fusion 247 J/g106 BTU/lb

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
57 / 100

Machinability Rating (AISI 1212 = 100 %)

55%
65%

Weldability

95 / 100
92 / 100

Formability (cold)

90 / 100
70 / 100

Polishability

40 / 100
45 / 100

Castability

—
45 / 100

Same in both: Brazeability / Solderability 80 / 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
45 L/kg5.4 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
53 kN·m/kg

Specific Stiffness (E / density)

25.4 MN·m/kg
26 MN·m/kg

Modulus of Resilience

81 kJ/m³
299 kJ/m³

Thermal Diffusivity

14.1 mm²/s
13.6 mm²/s

Thermal Shock Resistance Index

7
9

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 scale10101020

Manufacturing and finishing

Capability10101020
Default conditionHRCD
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 1020 — frequently asked

Is 1020 stronger than 1010?

Yes. 1020 has a typical yield strength of 350 MPa (50.8 ksi) against 180 MPa (26.1 ksi) for 1010 — about 94% more. Tensile strength is 420 MPa (60.9 ksi) vs 325 MPa (47.1 ksi).

Which is cheaper, 1010 or 1020?

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 1020?

1020. Its machinability rates good (57/100) against fair (42/100) for 1010.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1010 and 1020 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.