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Steel E7024 vs J506

Steel · grade comparison

Steel E7024 and J506 are both steel grades. Both yield at about 430 MPa — strength does not separate them. J506 is the more ductile: elongation 28% versus 25% for E7024. J506 runs hotter in service (400°C vs 350°C continuous).

J506Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

E7024 vs J506: properties

E7024J506

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

520 MPa75.4 ksi
540 MPa78.3 ksi

Yield Strength (0.2% offset)

430 MPa62.4 ksi
440 MPa63.8 ksi

Elongation at Break

25%
28%

Reduction in Area

50%
65%

Compressive Strength

430 MPa62.4 ksi
440 MPa63.8 ksi

Fatigue Strength (Endurance Limit)

210 MPa30.5 ksi
230 MPa33.4 ksi

Fracture Toughness (K_IC)

60 MPa·√m54.6 ksi·√in
—

Charpy V-Notch Impact (RT)

55 J40.6 ft·lbf
130 J95.9 ft·lbf

Hardness, Brinell

165 HB
170 HB

Hardness, Rockwell B

85 HRB
87 HRB

Hardness, Vickers

173 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 · Shear Strength 330 MPa47.9 ksi

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,470°C2,678 °F
1,460°C2,660 °F

Liquidus Temperature

1,520°C2,768 °F
1,510°C2,750 °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)

12 µm/m·K6.7 µin/in·°F
12.3 µm/m·K6.8 µin/in·°F

Latent Heat of Fusion

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

Max Service Temperature (continuous)

350°C662 °F
400°C752 °F

Min Service Temperature

-10°C14 °F
-30°C-22 °F

Same in both: Thermal Conductivity 48 W/m·K27.7 BTU/hr·ft·°F · Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°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).

Corrosion Resistance

10 / 100
11 / 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

55 / 100
58 / 100

Machinability Rating (AISI 1212 = 100 %)

60%
55%

Weldability

85 / 100
92 / 100

Formability (cold)

55 / 100
60 / 100

Brazeability / Solderability

70 / 100
60 / 100

Polishability

50 / 100
45 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Water

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

Typical Recycled Content

30%
25%

Same in both: Embodied Energy (primary production) 32 MJ/kg13,758 BTU/lb · Embodied Carbon (primary production) 2.4 kg CO₂/kg

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

66 kN·m/kg
69 kN·m/kg

Modulus of Resilience

451 kJ/m³
472 kJ/m³

Same in both: Specific Stiffness (E / density) 26.1 MN·m/kg · Thermal Diffusivity 13 mm²/s · Thermal Shock Resistance Index 10

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 scaleE7024J506

Manufacturing and finishing

CapabilityE7024J506
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.

E7024 vs J506 — frequently asked

What is the difference between E7024 and J506?

Steel E7024 and J506 are both steel grades. Both yield at about 430 MPa — strength does not separate them. J506 is the more ductile: elongation 28% versus 25% for E7024.

Which is cheaper, E7024 or J506?

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, E7024 or J506?

J506. Its weldability rates excellent (92/100) against excellent (85/100) for E7024.

Ready to make it?

Upload a CAD file and FabDigit prices the part in E7024 and J506 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.