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Steel 1035 vs S35C

Steel · grade comparison

Steel 1035 and S35C are both steel grades. S35C is the stronger of the two: yield strength 340 MPa (49.3 ksi) against 320 MPa (46.4 ksi) for 1035, about 6% more. S35C is the more ductile: elongation 25% versus 18% for 1035, and S35C is harder (180 HV vs 170 HV). On the shop floor, S35C welds better (65 vs 55 out of 100).

S35CChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

1035 vs S35C: properties

1035S35C

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

585 MPa84.8 ksi
560 MPa81.2 ksi

Yield Strength (0.2% offset)

320 MPa46.4 ksi
340 MPa49.3 ksi

Elongation at Break

18%
25%

Reduction in Area

40%
55%

Compressive Strength

320 MPa46.4 ksi
—

Shear Strength

360 MPa52.2 ksi
380 MPa55.1 ksi

Fracture Toughness (K_IC)

60 MPa·√m54.6 ksi·√in
55 MPa·√m50.1 ksi·√in

Charpy V-Notch Impact (RT)

55 J40.6 ft·lbf
45 J33.2 ft·lbf

Hardness, Brinell

163 HB
170 HB

Hardness, Rockwell B

85 HRB
86 HRB

Hardness, Vickers

170 HV
180 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 · Fatigue Strength (Endurance Limit) 260 MPa37.7 ksi

Physical

Density and transition temperatures.

Same in both: Density 7.85 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,425°C2,597 °F · Liquidus Temperature 1,500°C2,732 °F

Thermal

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

Thermal Conductivity

49 W/m·K28.3 BTU/hr·ft·°F
50 W/m·K28.9 BTU/hr·ft·°F

Specific Heat Capacity

486 J/kg·K0.12 BTU/lb·°F
470 J/kg·K0.11 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

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

Latent Heat of Fusion

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

Max Service Temperature (continuous)

425°C797 °F
400°C752 °F

Same in both: 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).

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.

Weldability

55 / 100
65 / 100

Brazeability / Solderability

65 / 100
60 / 100

Polishability

60 / 100
55 / 100

Same in both: Machinability 60 / 100 · Machinability Rating (AISI 1212 = 100 %) 65% · Formability (cold) 50 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Water

45 L/kg5.4 gal/lb
60 L/kg7.2 gal/lb

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

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

75 kN·m/kg
71 kN·m/kg

Modulus of Resilience

250 kJ/m³
282 kJ/m³

Thermal Diffusivity

12.8 mm²/s
13.6 mm²/s

Same in both: Specific Stiffness (E / density) 26.1 MN·m/kg · Thermal Shock Resistance Index 12

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 scale1035S35C

Manufacturing and finishing

Capability1035S35C
CNC machiningYes—
Sheet metalYes—
Default conditionHR—
Relative cost$ Budget$ Budget
Min. machined wall0.8 mm—
Best machined surfaceRa 1.6 µm—
AlCrNYes—
AlTiNYes—
Black OxideYes—
CVD Al2O3Yes—
CVD TiCNYes—
CVD TiNYes—
CerakoteYes—
Chrome PlatingYes—
CrNYes—
DLCYes—
E-CoatingYes—
HVOF CoatingYes—
Hot-Dip GalvanizingYes—
MoS2Yes—
Multilayer CVDYes—
Nickel PlatingYes—
PTFE CoatingYes—
PaintingYes—

They share 9 finishes: Copper Plating, Electroless Nickel (EN), Epoxy Coating, Gold Plating, Hard Chrome Plating, Manganese Phosphate, Plasma Spray, Silver Plating, Zinc Phosphate.

1035 vs S35C — frequently asked

Is S35C stronger than 1035?

Yes. S35C has a typical yield strength of 340 MPa (49.3 ksi) against 320 MPa (46.4 ksi) for 1035 — about 6% more. Tensile strength is 560 MPa (81.2 ksi) vs 585 MPa (84.8 ksi).

Which is cheaper, 1035 or S35C?

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, 1035 or S35C?

S35C. Its weldability rates good (65/100) against good (55/100) for 1035.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1035 and S35C 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.