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Steel E7018 vs E7024

Steel · grade comparison

Steel E7018 and E7024 are both steel grades. Both yield at about 450 MPa — strength does not separate them. E7018 is the more ductile: elongation 28% versus 25% for E7024. E7018 runs hotter in service (400°C vs 350°C continuous). On the shop floor, E7018 welds better (95 vs 85 out of 100).

E7018Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

E7018 vs E7024: properties

E7018E7024

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Shear Modulus

79 GPa11.5 Msi
80 GPa11.6 Msi

Tensile Strength (Ultimate)

540 MPa78.3 ksi
520 MPa75.4 ksi

Yield Strength (0.2% offset)

450 MPa65.3 ksi
430 MPa62.4 ksi

Elongation at Break

28%
25%

Reduction in Area

65%
50%

Fatigue Strength (Endurance Limit)

220 MPa31.9 ksi
210 MPa30.5 ksi

Fracture Toughness (K_IC)

120 MPa·√m109 ksi·√in
60 MPa·√m54.6 ksi·√in

Charpy V-Notch Impact (RT)

130 J95.9 ft·lbf
55 J40.6 ft·lbf

Hardness, Brinell

170 HB
165 HB

Hardness, Rockwell B

87 HRB
85 HRB

Hardness, Vickers

180 HV
173 HV

Compressive Strength

—
430 MPa62.4 ksi

Same in both: Elastic (Young's) Modulus 205 GPa29.7 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Shear Strength 330 MPa47.9 ksi

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,465°C2,669 °F
1,470°C2,678 °F

Same in both: Density 7.85 g/cm³0.28 lb/in³ · Liquidus Temperature 1,520°C2,768 °F

Thermal

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

Thermal Conductivity

50 W/m·K28.9 BTU/hr·ft·°F
48 W/m·K27.7 BTU/hr·ft·°F

Latent Heat of Fusion

270 J/g116 BTU/lb
250 J/g107 BTU/lb

Max Service Temperature (continuous)

400°C752 °F
350°C662 °F

Min Service Temperature

-30°C-22 °F
-10°C14 °F

Same in both: Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12 µm/m·K6.7 µin/in·°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)

-0.62 V
-0.61 V

Corrosion Resistance

11 / 100
10 / 100

Manufacturability

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

Weldability

95 / 100
85 / 100

Polishability

55 / 100
50 / 100

Same in both: Machinability 55 / 100 · Machinability Rating (AISI 1212 = 100 %) 60% · Formability (cold) 55 / 100 · Brazeability / Solderability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

33 MJ/kg14,187 BTU/lb
32 MJ/kg13,758 BTU/lb

Embodied Carbon (primary production)

2.6 kg CO₂/kg
2.4 kg CO₂/kg

Embodied Water

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

Typical Recycled Content

25%
30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

69 kN·m/kg
66 kN·m/kg

Modulus of Resilience

494 kJ/m³
451 kJ/m³

Thermal Diffusivity

13.6 mm²/s
13 mm²/s

Thermal Shock Resistance Index

11
10

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 scaleE7018E7024

Manufacturing and finishing

CapabilityE7018E7024
Default condition——
Relative cost$ Budget$ Budget
Min. machined wall——
Best machined surface——

Both take the same 9 finishes: Copper Plating, Electroless Nickel (EN), Epoxy Coating, Gold Plating, Hard Chrome Plating, Manganese Phosphate, Plasma Spray, Silver Plating, Zinc Phosphate.

E7018 vs E7024 — frequently asked

What is the difference between E7018 and E7024?

Steel E7018 and E7024 are both steel grades. Both yield at about 450 MPa — strength does not separate them. E7018 is the more ductile: elongation 28% versus 25% for E7024.

Which is cheaper, E7018 or E7024?

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, E7018 or E7024?

E7018. Its weldability rates excellent (95/100) against excellent (85/100) for E7024.

Ready to make it?

Upload a CAD file and FabDigit prices the part in E7018 and E7024 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.