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Steel 1010 vs 1025

Steel · grade comparison

Steel 1010 and 1025 are both steel grades, both low carbon steel. 1025 is the stronger of the two: yield strength 220 MPa (31.9 ksi) against 180 MPa (26.1 ksi) for 1010, about 22% more; tensile strength follows at 400 MPa (58 ksi) vs 325 MPa (47.1 ksi). In exchange, 1010 is the more ductile: elongation 28% versus 25% for 1025, and 1025 is harder (116 HB vs 95 HB). 1010 conducts electricity better (12 % IACS vs 10.5 % IACS). On the shop floor, 1025 machines more easily (good vs fair).

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

1025Choose it when strength drives the design, or when the part is machined in volume.

1010 vs 1025: properties

10101025

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
400 MPa58 ksi

Yield Strength (0.2% offset)

180 MPa26.1 ksi
220 MPa31.9 ksi

Elongation at Break

28%
25%

Shear Strength

220 MPa31.9 ksi
275 MPa39.9 ksi

Fatigue Strength (Endurance Limit)

160 MPa23.2 ksi
200 MPa29 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
60 J44.3 ft·lbf

Hardness, Brinell

95 HB
116 HB

Hardness, Rockwell B

55 HRB
67 HRB

Hardness, Vickers

100 HV
122 HV

Compressive Strength

—
220 MPa31.9 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.

Melting Point (Solidus)

1,495°C2,723 °F
1,425°C2,597 °F

Liquidus Temperature

1,525°C2,777 °F
1,515°C2,759 °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

Latent Heat of Fusion

247 J/g106 BTU/lb
250 J/g107 BTU/lb

Min Service Temperature

-30°C-22 °F
-20°C-4 °F

Same in both: Max Service Temperature (continuous) 400°C752 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

12 % IACS
10.5 % IACS

Electrical Resistivity

1.43×10⁻⁷ Ω·m5.63 µΩ·in
1.65×10⁻⁷ Ω·m6.5 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
55 / 100

Machinability Rating (AISI 1212 = 100 %)

55%
65%

Weldability

95 / 100
90 / 100

Formability (cold)

90 / 100
70 / 100

Brazeability / Solderability

80 / 100
75 / 100

Polishability

40 / 100
50 / 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
45 L/kg5.4 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
51 kN·m/kg

Specific Stiffness (E / density)

25.4 MN·m/kg
26 MN·m/kg

Modulus of Resilience

81 kJ/m³
118 kJ/m³

Thermal Diffusivity

14.1 mm²/s
13.6 mm²/s

Thermal Shock Resistance Index

7
8

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 scale10101025

Manufacturing and finishing

Capability10101025
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 1025 — frequently asked

Is 1025 stronger than 1010?

Yes. 1025 has a typical yield strength of 220 MPa (31.9 ksi) against 180 MPa (26.1 ksi) for 1010 — about 22% more. Tensile strength is 400 MPa (58 ksi) vs 325 MPa (47.1 ksi).

Which is cheaper, 1010 or 1025?

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 1025?

1025. Its machinability rates good (55/100) against fair (42/100) for 1010; for welding the order is 1010 first (excellent, 95/100) then 1025 (excellent, 90/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1010 and 1025 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.