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Steel 1030 vs Medium Carbon Steel

Steel · grade comparison

Steel 1030 and Medium Carbon Steel are both steel grades, both medium carbon steel. Medium Carbon Steel is the stronger of the two: yield strength 330 MPa (47.9 ksi) against 260 MPa (37.7 ksi) for 1030, about 27% more; tensile strength follows at 585 MPa (84.8 ksi) vs 470 MPa (68.2 ksi). In exchange, 1030 is the more ductile: elongation 20% versus 16% for Medium Carbon Steel, and Medium Carbon Steel is harder (179 HB vs 137 HB). On the shop floor, 1030 welds better (good vs fair).

1030Choose it when the part is bent, formed or impact-loaded, or when it will be welded.

Medium Carbon SteelChoose it when strength drives the design.

1030 vs Medium Carbon Steel: properties

1030Medium Carbon Steel

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

470 MPa68.2 ksi
585 MPa84.8 ksi

Yield Strength (0.2% offset)

260 MPa37.7 ksi
330 MPa47.9 ksi

Elongation at Break

20%
16%

Reduction in Area

42%
40%

Compressive Strength

260 MPa37.7 ksi
330 MPa47.9 ksi

Shear Strength

300 MPa43.5 ksi
390 MPa56.6 ksi

Fatigue Strength (Endurance Limit)

230 MPa33.4 ksi
275 MPa39.9 ksi

Charpy V-Notch Impact (RT)

40 J29.5 ft·lbf
22 J16.2 ft·lbf

Hardness, Brinell

137 HB
179 HB

Hardness, Rockwell B

75 HRB
88 HRB

Hardness, Vickers

—
188 HV

Same in both: Elastic (Young's) Modulus 205 GPa29.7 Msi · Shear Modulus 80 GPa11.6 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Fracture Toughness (K_IC) 55 MPa·√m50.1 ksi·√in

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,425°C2,597 °F
1,420°C2,588 °F

Liquidus Temperature

1,510°C2,750 °F
1,495°C2,723 °F

Same in both: Density 7.85 g/cm³0.28 lb/in³

Thermal

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

Thermal Conductivity

51.9 W/m·K30 BTU/hr·ft·°F
49 W/m·K28.3 BTU/hr·ft·°F

Same in both: Specific Heat Capacity 486 J/kg·K0.12 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.7 µm/m·K6.5 µin/in·°F · Latent Heat of Fusion 247 J/g106 BTU/lb · Max Service Temperature (continuous) 400°C752 °F · Min Service Temperature -20°C-4 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 10 % IACS · Electrical Resistivity 1.7×10⁻⁷ Ω·m6.69 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.61 V
-0.62 V

Corrosion Resistance

10 / 100
12 / 100

Manufacturability

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

Machinability Rating (AISI 1212 = 100 %)

65%
55%

Weldability

62 / 100
50 / 100

Formability (cold)

50 / 100
40 / 100

Castability

45 / 100
—

Brazeability / Solderability

70 / 100
60 / 100

Polishability

55 / 100
60 / 100

Same in both: Machinability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

25 MJ/kg10,748 BTU/lb
26 MJ/kg11,178 BTU/lb

Embodied Carbon (primary production)

1.9 kg CO₂/kg
2 kg CO₂/kg

Same in both: Embodied Water 40 L/kg4.8 gal/lb · Typical Recycled Content 30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

60 kN·m/kg
75 kN·m/kg

Modulus of Resilience

165 kJ/m³
266 kJ/m³

Thermal Diffusivity

13.6 mm²/s
12.8 mm²/s

Thermal Shock Resistance Index

10
12

Same in both: Specific Stiffness (E / density) 26.1 MN·m/kg

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 scale1030Medium Carbon Steel

Manufacturing and finishing

Capability1030Medium Carbon Steel
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.

1030 vs Medium Carbon Steel — frequently asked

Is Medium Carbon Steel stronger than 1030?

Yes. Medium Carbon Steel has a typical yield strength of 330 MPa (47.9 ksi) against 260 MPa (37.7 ksi) for 1030 — about 27% more. Tensile strength is 585 MPa (84.8 ksi) vs 470 MPa (68.2 ksi).

Which is cheaper, 1030 or Medium Carbon Steel?

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 welds better, 1030 or Medium Carbon Steel?

1030. Its weldability rates good (62/100) against fair (50/100) for Medium Carbon Steel.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1030 and Medium Carbon Steel 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.