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Steel A369 FP1 vs A514

Steel · grade comparison

Steel A369 FP1 and A514 are both steel grades. A514 is the stronger of the two: yield strength 760 MPa (110 ksi) against 270 MPa (39.2 ksi) for A369 FP1, about 181% more; tensile strength follows at 800 MPa (116 ksi) vs 460 MPa (66.7 ksi). In exchange, A369 FP1 is the more ductile: elongation 34% versus 19% for A514, and A514 is harder (250 HB vs 140 HB). A369 FP1 runs hotter in service (470°C vs 400°C continuous). On the shop floor, A369 FP1 machines more easily (good vs fair) and A369 FP1 welds better (very good vs good).

A369 FP1Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

A514Choose it when strength drives the design.

A369 FP1 vs A514: properties

A369 FP1A514

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

210 GPa30.5 Msi
205 GPa29.7 Msi

Shear Modulus

81 GPa11.7 Msi
80 GPa11.6 Msi

Tensile Strength (Ultimate)

460 MPa66.7 ksi
800 MPa116 ksi

Yield Strength (0.2% offset)

270 MPa39.2 ksi
760 MPa110 ksi

Elongation at Break

34%
19%

Reduction in Area

62%
50%

Compressive Strength

280 MPa40.6 ksi
760 MPa110 ksi

Shear Strength

300 MPa43.5 ksi
480 MPa69.6 ksi

Fatigue Strength (Endurance Limit)

215 MPa31.2 ksi
380 MPa55.1 ksi

Fracture Toughness (K_IC)

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

Charpy V-Notch Impact (RT)

85 J62.7 ft·lbf
75 J55.3 ft·lbf

Hardness, Brinell

140 HB
250 HB

Hardness, Rockwell B

78 HRB
100 HRB

Hardness, Rockwell C

—
24 HRC

Hardness, Vickers

—
262 HV

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

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,470°C2,678 °F
1,425°C2,597 °F

Liquidus Temperature

1,515°C2,759 °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 Conductivity

44 W/m·K25.4 BTU/hr·ft·°F
42 W/m·K24.3 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

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

Latent Heat of Fusion

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

Max Service Temperature (continuous)

470°C878 °F
400°C752 °F

Min Service Temperature

-29°C-20 °F
-45°C-49 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

2.1×10⁻⁷ Ω·m8.27 µΩ·in
2.4×10⁻⁷ Ω·m9.45 µΩ·in

Electrical Conductivity

—
7 % IACS

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

13 / 100
16 / 100

Galvanic Potential (seawater, vs SCE)

—
-0.6 V

Manufacturability

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

Machinability

60 / 100
38 / 100

Machinability Rating (AISI 1212 = 100 %)

62%
40%

Weldability

72 / 100
55 / 100

Formability (cold)

70 / 100
30 / 100

Brazeability / Solderability

45 / 100
40 / 100

Polishability

55 / 100
50 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

30 MJ/kg12,898 BTU/lb
31 MJ/kg13,328 BTU/lb

Embodied Carbon (primary production)

2.3 kg CO₂/kg
2.4 kg CO₂/kg

Same in both: Embodied Water 45 L/kg5.4 gal/lb · Typical Recycled Content 30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

59 kN·m/kg
102 kN·m/kg

Specific Stiffness (E / density)

26.8 MN·m/kg
26.1 MN·m/kg

Modulus of Resilience

174 kJ/m³
1,409 kJ/m³

Thermal Diffusivity

12.1 mm²/s
11.4 mm²/s

Thermal Shock Resistance Index

8
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 scaleA514A369 FP1

Manufacturing and finishing

CapabilityA369 FP1A514
CNC machining—Yes
Sheet metal—Yes
Default condition—Q&T
Relative cost$$ Standard$$ 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.

A369 FP1 vs A514 — frequently asked

Is A514 stronger than A369 FP1?

Yes. A514 has a typical yield strength of 760 MPa (110 ksi) against 270 MPa (39.2 ksi) for A369 FP1 — about 181% more. Tensile strength is 800 MPa (116 ksi) vs 460 MPa (66.7 ksi).

Which is cheaper, A369 FP1 or A514?

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, A369 FP1 or A514?

A369 FP1. Its machinability rates good (60/100) against fair (38/100) for A514; for welding the order is A369 FP1 first (very good, 72/100) then A514 (good, 55/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in A369 FP1 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.