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Steel A514 vs En52

Steel · grade comparison

Steel A514 and En52 are both steel grades. En52 is the stronger of the two: tensile strength 1,000 MPa (145 ksi) against 800 MPa (116 ksi) for A514, about 25% more. In exchange, A514 is the more ductile: elongation 19% versus 17% for En52, and En52 is harder (285 HB vs 250 HB). En52 runs hotter in service (750°C vs 400°C continuous) and A514 conducts heat better (42 W/m·K vs 23 W/m·K). On the shop floor, A514 welds better (good vs poor).

A514Choose it when the part is bent, formed or impact-loaded, or when it will be welded.

En52Choose it when strength drives the design, or when the part sees heat.

A514 vs En52: properties

A514En52

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

205 GPa29.7 Msi
215 GPa31.2 Msi

Shear Modulus

80 GPa11.6 Msi
83 GPa12 Msi

Tensile Strength (Ultimate)

800 MPa116 ksi
1,000 MPa145 ksi

Yield Strength (0.2% offset)

760 MPa110 ksi
750 MPa109 ksi

Elongation at Break

19%
17%

Reduction in Area

50%
45%

Compressive Strength

760 MPa110 ksi
780 MPa113 ksi

Shear Strength

480 MPa69.6 ksi
620 MPa89.9 ksi

Fatigue Strength (Endurance Limit)

380 MPa55.1 ksi
470 MPa68.2 ksi

Fracture Toughness (K_IC)

120 MPa·√m109 ksi·√in
45 MPa·√m41 ksi·√in

Charpy V-Notch Impact (RT)

75 J55.3 ft·lbf
20 J14.8 ft·lbf

Hardness, Brinell

250 HB
285 HB

Hardness, Rockwell B

100 HRB
—

Hardness, Rockwell C

24 HRC
30 HRC

Hardness, Vickers

262 HV
300 HV

Same in both: Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29

Physical

Density and transition temperatures.

Density

7.85 g/cm³0.28 lb/in³
7.7 g/cm³0.28 lb/in³

Melting Point (Solidus)

1,425°C2,597 °F
1,420°C2,588 °F

Liquidus Temperature

1,510°C2,750 °F
1,480°C2,696 °F

Thermal

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

Thermal Conductivity

42 W/m·K24.3 BTU/hr·ft·°F
23 W/m·K13.3 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

12 µm/m·K6.7 µin/in·°F
11.5 µm/m·K6.4 µin/in·°F

Latent Heat of Fusion

250 J/g107 BTU/lb
260 J/g112 BTU/lb

Max Service Temperature (continuous)

400°C752 °F
750°C1,382 °F

Min Service Temperature

-45°C-49 °F
-20°C-4 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

7 % IACS
2.3 % IACS

Electrical Resistivity

2.4×10⁻⁷ Ω·m9.45 µΩ·in
7.5×10⁻⁷ Ω·m29.5 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.6 V
-0.3 V

Corrosion Resistance

16 / 100
35 / 100

Manufacturability

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

Machinability

38 / 100
32 / 100

Machinability Rating (AISI 1212 = 100 %)

40%
30%

Weldability

55 / 100
25 / 100

Formability (cold)

30 / 100
20 / 100

Polishability

50 / 100
60 / 100

Castability

—
30 / 100

Same in both: Brazeability / Solderability 40 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

31 MJ/kg13,328 BTU/lb
36 MJ/kg15,477 BTU/lb

Embodied Carbon (primary production)

2.4 kg CO₂/kg
2.6 kg CO₂/kg

Embodied Water

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

Same in both: Typical Recycled Content 30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

102 kN·m/kg
130 kN·m/kg

Specific Stiffness (E / density)

26.1 MN·m/kg
27.9 MN·m/kg

Modulus of Resilience

1,409 kJ/m³
1,308 kJ/m³

Thermal Diffusivity

11.4 mm²/s
6.5 mm²/s

Thermal Shock Resistance Index

14
9

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 scaleA514En52

Manufacturing and finishing

CapabilityA514En52
CNC machiningYes—
Sheet metalYes—
Default conditionQ&T—
Relative cost$$ Standard$$ Standard
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.

A514 vs En52 — frequently asked

Is En52 stronger than A514?

Yes. En52 has a typical tensile strength of 1,000 MPa (145 ksi) against 800 MPa (116 ksi) for A514 — about 25% more.

Which is cheaper, A514 or En52?

Both sit in the same relative cost tier ($$, standard); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which is easier to machine, A514 or En52?

A514. Its machinability rates fair (38/100) against poor (32/100) for En52; for welding the order is A514 first (good, 55/100) then En52 (poor, 25/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in A514 and En52 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.