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Steel 10# vs 1010

Steel · grade comparison

Steel 10# and 1010 are both steel grades, both low carbon steel. 10# is the stronger of the two: yield strength 230 MPa (33.4 ksi) against 180 MPa (26.1 ksi) for 1010, about 28% more; tensile strength follows at 380 MPa (55.1 ksi) vs 325 MPa (47.1 ksi). 10# is the more ductile: elongation 33% versus 28% for 1010, and 10# is harder (120 HB vs 95 HB).

10#Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

10# vs 1010: properties

10#1010

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

205 GPa29.7 Msi
200 GPa29 Msi

Tensile Strength (Ultimate)

380 MPa55.1 ksi
325 MPa47.1 ksi

Yield Strength (0.2% offset)

230 MPa33.4 ksi
180 MPa26.1 ksi

Elongation at Break

33%
28%

Reduction in Area

60%
50%

Compressive Strength

230 MPa33.4 ksi
—

Shear Strength

230 MPa33.4 ksi
220 MPa31.9 ksi

Fatigue Strength (Endurance Limit)

165 MPa23.9 ksi
160 MPa23.2 ksi

Fracture Toughness (K_IC)

110 MPa·√m100 ksi·√in
140 MPa·√m127 ksi·√in

Charpy V-Notch Impact (RT)

100 J73.8 ft·lbf
95 J70.1 ft·lbf

Hardness, Brinell

120 HB
95 HB

Hardness, Rockwell B

67 HRB
55 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

Physical

Density and transition temperatures.

Density

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

Liquidus Temperature

1,522°C2,772 °F
1,525°C2,777 °F

Same in both: Melting Point (Solidus) 1,495°C2,723 °F

Thermal

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

Thermal Conductivity

51 W/m·K29.5 BTU/hr·ft·°F
49.8 W/m·K28.8 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

11.9 µm/m·K6.6 µin/in·°F
12.2 µm/m·K6.8 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

10.8 % IACS
12 % IACS

Electrical Resistivity

1.6×10⁻⁷ Ω·m6.3 µΩ·in
1.43×10⁻⁷ Ω·m5.63 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.65 V
-0.61 V

Same in both: Corrosion Resistance 10 / 100

Manufacturability

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

Machinability

45 / 100
42 / 100

Formability (cold)

88 / 100
90 / 100

Polishability

50 / 100
40 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 55% · Weldability 95 / 100 · Brazeability / Solderability 80 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

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

Embodied Carbon (primary production)

2.1 kg CO₂/kg
1.9 kg CO₂/kg

Embodied Water

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

Typical Recycled Content

25%
30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

48 kN·m/kg
41 kN·m/kg

Specific Stiffness (E / density)

26.1 MN·m/kg
25.4 MN·m/kg

Modulus of Resilience

129 kJ/m³
81 kJ/m³

Thermal Diffusivity

13.7 mm²/s
14.1 mm²/s

Thermal Shock Resistance Index

8
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 scale101010#

Manufacturing and finishing

Capability10#1010
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.

10# vs 1010 — frequently asked

Is 10# stronger than 1010?

Yes. 10# has a typical yield strength of 230 MPa (33.4 ksi) against 180 MPa (26.1 ksi) for 1010 — about 28% more. Tensile strength is 380 MPa (55.1 ksi) vs 325 MPa (47.1 ksi).

Which is cheaper, 10# or 1010?

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.

When should I choose 10# over 1010?

Pick 10# when strength drives the design, or when the part is bent, formed or impact-loaded.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 10# and 1010 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.