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Steel 1010 vs S20C

Steel · grade comparison

Steel 1010 and S20C are both steel grades, both low carbon steel. S20C is the stronger of the two: yield strength 400 MPa (58 ksi) against 180 MPa (26.1 ksi) for 1010, about 122% more; tensile strength follows at 500 MPa (72.5 ksi) vs 325 MPa (47.1 ksi). In exchange, 1010 is the more ductile: elongation 28% versus 14% for S20C, and S20C is harder (143 HB vs 95 HB). On the shop floor, S20C machines more easily (good vs fair).

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

S20CChoose it when strength drives the design, or when the part is machined in volume.

1010 vs S20C: properties

1010S20C

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
500 MPa72.5 ksi

Yield Strength (0.2% offset)

180 MPa26.1 ksi
400 MPa58 ksi

Elongation at Break

28%
14%

Shear Strength

220 MPa31.9 ksi
330 MPa47.9 ksi

Fatigue Strength (Endurance Limit)

160 MPa23.2 ksi
240 MPa34.8 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
143 HB

Hardness, Rockwell B

55 HRB
78 HRB

Hardness, Vickers

100 HV
150 HV

Compressive Strength

—
400 MPa58 ksi

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

Physical

Density and transition temperatures.

Density

7.87 g/cm³0.28 lb/in³
7.86 g/cm³0.28 lb/in³

Melting Point (Solidus)

1,495°C2,723 °F
1,490°C2,714 °F

Liquidus Temperature

1,525°C2,777 °F
1,520°C2,768 °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

Min Service Temperature

-30°C-22 °F
-20°C-4 °F

Same in both: Latent Heat of Fusion 247 J/g106 BTU/lb · Max Service Temperature (continuous) 400°C752 °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
58 / 100

Machinability Rating (AISI 1212 = 100 %)

55%
65%

Weldability

95 / 100
92 / 100

Formability (cold)

90 / 100
60 / 100

Polishability

40 / 100
55 / 100

Castability

—
40 / 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 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

Typical Recycled Content

30%
25%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

41 kN·m/kg
64 kN·m/kg

Specific Stiffness (E / density)

25.4 MN·m/kg
26.1 MN·m/kg

Modulus of Resilience

81 kJ/m³
390 kJ/m³

Thermal Diffusivity

14.1 mm²/s
13.6 mm²/s

Thermal Shock Resistance Index

7
11

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 scale1010S20C

Manufacturing and finishing

Capability1010S20C
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 S20C — frequently asked

Is S20C stronger than 1010?

Yes. S20C has a typical yield strength of 400 MPa (58 ksi) against 180 MPa (26.1 ksi) for 1010 — about 122% more. Tensile strength is 500 MPa (72.5 ksi) vs 325 MPa (47.1 ksi).

Which is cheaper, 1010 or S20C?

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 S20C?

S20C. Its machinability rates good (58/100) against fair (42/100) for 1010.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1010 and S20C 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.