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Steel 1035 vs S50C

Steel · grade comparison

Steel 1035 and S50C are both steel grades, both medium carbon steel. S50C is the stronger of the two: yield strength 427 MPa (61.9 ksi) against 320 MPa (46.4 ksi) for 1035, about 33% more; tensile strength follows at 748 MPa (108 ksi) vs 585 MPa (84.8 ksi). S50C is the more ductile: elongation 20% versus 18% for 1035, and S50C is harder (217 HB vs 163 HB). 1035 runs hotter in service (425°C vs 350°C continuous). On the shop floor, 1035 machines more easily (good vs fair) and 1035 welds better (good vs fair).

1035Choose it when the part sees heat, or when the part is machined in volume.

S50CChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

1035 vs S50C: properties

1035S50C

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

585 MPa84.8 ksi
748 MPa108 ksi

Yield Strength (0.2% offset)

320 MPa46.4 ksi
427 MPa61.9 ksi

Elongation at Break

18%
20%

Compressive Strength

320 MPa46.4 ksi
430 MPa62.4 ksi

Shear Strength

360 MPa52.2 ksi
450 MPa65.3 ksi

Fatigue Strength (Endurance Limit)

260 MPa37.7 ksi
330 MPa47.9 ksi

Fracture Toughness (K_IC)

60 MPa·√m54.6 ksi·√in
50 MPa·√m45.5 ksi·√in

Charpy V-Notch Impact (RT)

55 J40.6 ft·lbf
25 J18.4 ft·lbf

Hardness, Brinell

163 HB
217 HB

Hardness, Rockwell B

85 HRB
96 HRB

Hardness, Vickers

170 HV
228 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 · Reduction in Area 40%

Physical

Density and transition temperatures.

Liquidus Temperature

1,500°C2,732 °F
1,480°C2,696 °F

Same in both: Density 7.85 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,425°C2,597 °F

Thermal

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

Thermal Expansion (CTE, 20–100 °C)

11.9 µm/m·K6.6 µin/in·°F
11.7 µm/m·K6.5 µin/in·°F

Max Service Temperature (continuous)

425°C797 °F
350°C662 °F

Same in both: Thermal Conductivity 49 W/m·K28.3 BTU/hr·ft·°F · Specific Heat Capacity 486 J/kg·K0.12 BTU/lb·°F · Latent Heat of Fusion 250 J/g107 BTU/lb · Min Service Temperature -20°C-4 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

10.8 % IACS
10 % IACS

Electrical Resistivity

1.6×10⁻⁷ Ω·m6.3 µΩ·in
1.7×10⁻⁷ Ω·m6.69 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

10 / 100
12 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.61 V

Manufacturability

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

Machinability

60 / 100
50 / 100

Machinability Rating (AISI 1212 = 100 %)

65%
50%

Weldability

55 / 100
35 / 100

Formability (cold)

50 / 100
35 / 100

Brazeability / Solderability

65 / 100
60 / 100

Polishability

60 / 100
55 / 100

Castability

—
55 / 100

Sustainability

Primary-production footprint per kilogram.

Typical Recycled Content

30%
25%

Same in both: Embodied Energy (primary production) 25 MJ/kg10,748 BTU/lb · Embodied Carbon (primary production) 2 kg CO₂/kg · Embodied Water 45 L/kg5.4 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

75 kN·m/kg
95 kN·m/kg

Modulus of Resilience

250 kJ/m³
445 kJ/m³

Thermal Shock Resistance Index

12
15

Same in both: Specific Stiffness (E / density) 26.1 MN·m/kg · Thermal Diffusivity 12.8 mm²/s

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 scale1035S50C

Manufacturing and finishing

Capability1035S50C
Default conditionHRNormalized
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.

1035 vs S50C — frequently asked

Is S50C stronger than 1035?

Yes. S50C has a typical yield strength of 427 MPa (61.9 ksi) against 320 MPa (46.4 ksi) for 1035 — about 33% more. Tensile strength is 748 MPa (108 ksi) vs 585 MPa (84.8 ksi).

Which is cheaper, 1035 or S50C?

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, 1035 or S50C?

1035. Its machinability rates good (60/100) against fair (50/100) for S50C; for welding the order is 1035 first (good, 55/100) then S50C (fair, 35/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1035 and S50C 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.