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Steel 1035 vs 1046

Steel · grade comparison

Steel 1035 and 1046 are both steel grades. Both yield at about 320 MPa — strength does not separate them. 1035 is the more ductile: elongation 18% versus 15% for 1046. On the shop floor, 1035 welds better (good vs fair).

1035Choose it when the part is bent, formed or impact-loaded, or when it will be welded.

1035 vs 1046: properties

10351046

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

585 MPa84.8 ksi
586 MPa85 ksi

Yield Strength (0.2% offset)

320 MPa46.4 ksi
310 MPa45 ksi

Elongation at Break

18%
15%

Compressive Strength

320 MPa46.4 ksi
310 MPa45 ksi

Shear Strength

360 MPa52.2 ksi
350 MPa50.8 ksi

Fatigue Strength (Endurance Limit)

260 MPa37.7 ksi
275 MPa39.9 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
170 HB

Hardness, Rockwell B

85 HRB
86 HRB

Hardness, Vickers

170 HV
178 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.

Melting Point (Solidus)

1,425°C2,597 °F
1,420°C2,588 °F

Liquidus Temperature

1,500°C2,732 °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 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
400°C752 °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
10.5 % IACS

Electrical Resistivity

1.6×10⁻⁷ Ω·m6.3 µΩ·in
1.62×10⁻⁷ Ω·m6.38 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.61 V
-0.62 V

Same in both: Corrosion Resistance 10 / 100

Manufacturability

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

Machinability

60 / 100
55 / 100

Machinability Rating (AISI 1212 = 100 %)

65%
55%

Weldability

55 / 100
40 / 100

Formability (cold)

50 / 100
35 / 100

Brazeability / Solderability

65 / 100
60 / 100

Polishability

60 / 100
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.

Modulus of Resilience

250 kJ/m³
234 kJ/m³

Same in both: Specific Strength (UTS / density) 75 kN·m/kg · Specific Stiffness (E / density) 26.1 MN·m/kg · Thermal Diffusivity 12.8 mm²/s · 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 scale10351046

Manufacturing and finishing

Capability10351046
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 1046 — frequently asked

What is the difference between 1035 and 1046?

Steel 1035 and 1046 are both steel grades. Both yield at about 320 MPa — strength does not separate them. 1035 is the more ductile: elongation 18% versus 15% for 1046.

Which is cheaper, 1035 or 1046?

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 1046?

1035, by a small margin. Both rate good for machinability — 60/100 against 55/100 for 1046; for welding the order is 1035 first (good, 55/100) then 1046 (fair, 40/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1035 and 1046 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.