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Steel A414 vs A514

Steel · grade comparison

Steel A414 and A514 are both steel grades. A514 is the stronger of the two: yield strength 760 MPa (110 ksi) against 255 MPa (37 ksi) for A414, about 198% more; tensile strength follows at 800 MPa (116 ksi) vs 425 MPa (61.6 ksi). In exchange, A414 is the more ductile: elongation 28% versus 19% for A514, and A514 is harder (250 HB vs 125 HB). A414 conducts heat better (51 W/m·K vs 42 W/m·K). On the shop floor, A414 machines more easily (good vs fair), A414 welds better (excellent vs good), and A414 sits in a lower cost tier (budget, $) than A514 (standard, $$).

A414Choose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

A514Choose it when strength drives the design.

A414 vs A514: properties

A414A514

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

200 GPa29 Msi
205 GPa29.7 Msi

Shear Modulus

79 GPa11.5 Msi
80 GPa11.6 Msi

Tensile Strength (Ultimate)

425 MPa61.6 ksi
800 MPa116 ksi

Yield Strength (0.2% offset)

255 MPa37 ksi
760 MPa110 ksi

Elongation at Break

28%
19%

Compressive Strength

295 MPa42.8 ksi
760 MPa110 ksi

Shear Strength

285 MPa41.3 ksi
480 MPa69.6 ksi

Fatigue Strength (Endurance Limit)

195 MPa28.3 ksi
380 MPa55.1 ksi

Fracture Toughness (K_IC)

110 MPa·√m100 ksi·√in
120 MPa·√m109 ksi·√in

Charpy V-Notch Impact (RT)

50 J36.9 ft·lbf
75 J55.3 ft·lbf

Hardness, Brinell

125 HB
250 HB

Hardness, Rockwell B

71 HRB
100 HRB

Hardness, Vickers

126 HV
262 HV

Hardness, Rockwell C

—
24 HRC

Same in both: Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Reduction in Area 50%

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,485°C2,705 °F
1,425°C2,597 °F

Same in both: Density 7.85 g/cm³0.28 lb/in³ · Liquidus Temperature 1,510°C2,750 °F

Thermal

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

Thermal Conductivity

51 W/m·K29.5 BTU/hr·ft·°F
42 W/m·K24.3 BTU/hr·ft·°F

Latent Heat of Fusion

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

Max Service Temperature (continuous)

425°C797 °F
400°C752 °F

Min Service Temperature

-20°C-4 °F
-45°C-49 °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.

Electrical Conductivity

10.5 % IACS
7 % IACS

Electrical Resistivity

1.6×10⁻⁷ Ω·m6.3 µΩ·in
2.4×10⁻⁷ Ω·m9.45 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.62 V
-0.6 V

Corrosion Resistance

10 / 100
16 / 100

Manufacturability

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

Machinability

65 / 100
38 / 100

Machinability Rating (AISI 1212 = 100 %)

60%
40%

Weldability

90 / 100
55 / 100

Formability (cold)

88 / 100
30 / 100

Castability

40 / 100
—

Brazeability / Solderability

70 / 100
40 / 100

Same in both: Polishability 50 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

24 MJ/kg10,318 BTU/lb
31 MJ/kg13,328 BTU/lb

Embodied Carbon (primary production)

1.9 kg CO₂/kg
2.4 kg CO₂/kg

Embodied Water

40 L/kg4.8 gal/lb
45 L/kg5.4 gal/lb

Same in both: Typical Recycled Content 30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

54 kN·m/kg
102 kN·m/kg

Specific Stiffness (E / density)

25.5 MN·m/kg
26.1 MN·m/kg

Modulus of Resilience

163 kJ/m³
1,409 kJ/m³

Thermal Diffusivity

13.8 mm²/s
11.4 mm²/s

Thermal Shock Resistance Index

9
14

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 scaleA514A414

Manufacturing and finishing

CapabilityA414A514
CNC machining—Yes
Sheet metal—Yes
Default condition—Q&T
Relative cost$ Budget$$ Standard
Min. machined wall—0.8 mm
Best machined surface—Ra 1.6 µm
AlCrN—Yes
AlTiN—Yes
Black Oxide—Yes
CVD Al2O3—Yes
CVD TiCN—Yes
CVD TiN—Yes
Cerakote—Yes
Chrome Plating—Yes
CrN—Yes
DLC—Yes
E-Coating—Yes
HVOF Coating—Yes
Hot-Dip Galvanizing—Yes
MoS2—Yes
Multilayer CVD—Yes
Nickel Plating—Yes
PTFE Coating—Yes
Painting—Yes

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

A414 vs A514 — frequently asked

Is A514 stronger than A414?

Yes. A514 has a typical yield strength of 760 MPa (110 ksi) against 255 MPa (37 ksi) for A414 — about 198% more. Tensile strength is 800 MPa (116 ksi) vs 425 MPa (61.6 ksi).

Which is cheaper, A414 or A514?

A414 is the lower-cost material: it sits in the budget tier ($) while A514 is standard ($$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which is easier to machine, A414 or A514?

A414. Its machinability rates good (65/100) against fair (38/100) for A514; for welding the order is A414 first (excellent, 90/100) then A514 (good, 55/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in A414 and A514 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.