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Steel A182 F92 vs AR400

Steel · grade comparison

Steel A182 F92 and AR400 are both steel grades. AR400 is the stronger of the two: yield strength 1,050 MPa (152 ksi) against 520 MPa (75.4 ksi) for A182 F92, about 102% more; tensile strength follows at 1,250 MPa (181 ksi) vs 710 MPa (103 ksi). In exchange, A182 F92 is the more ductile: elongation 22% versus 11% for AR400, and AR400 is harder (400 HB vs 220 HB). A182 F92 is stiffer (216 GPa vs 205 GPa) and A182 F92 runs hotter in service (620°C vs 250°C continuous). On the shop floor, A182 F92 machines more easily (fair vs poor), AR400 welds better (good vs fair), and AR400 sits in a lower cost tier (premium, $$$) than A182 F92 (high, $$$$).

A182 F92Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

AR400Choose it when strength drives the design, or when it will be welded.

A182 F92 vs AR400: properties

A182 F92AR400

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

216 GPa31.3 Msi
205 GPa29.7 Msi

Shear Modulus

83 GPa12 Msi
80 GPa11.6 Msi

Bulk Modulus

165 GPa23.9 Msi
160 GPa23.2 Msi

Poisson's Ratio

0.3
0.29

Tensile Strength (Ultimate)

710 MPa103 ksi
1,250 MPa181 ksi

Yield Strength (0.2% offset)

520 MPa75.4 ksi
1,050 MPa152 ksi

Elongation at Break

22%
11%

Reduction in Area

62%
40%

Compressive Strength

540 MPa78.3 ksi
1,100 MPa160 ksi

Shear Strength

430 MPa62.4 ksi
780 MPa113 ksi

Fatigue Strength (Endurance Limit)

350 MPa50.8 ksi
520 MPa75.4 ksi

Fracture Toughness (K_IC)

150 MPa·√m137 ksi·√in
70 MPa·√m63.7 ksi·√in

Charpy V-Notch Impact (RT)

120 J88.5 ft·lbf
30 J22.1 ft·lbf

Hardness, Brinell

220 HB
400 HB

Hardness, Rockwell C

20 HRC
43 HRC

Hardness, Vickers

230 HV
420 HV

Physical

Density and transition temperatures.

Density

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

Liquidus Temperature

1,490°C2,714 °F
1,500°C2,732 °F

Same in both: Melting Point (Solidus) 1,420°C2,588 °F

Thermal

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

Thermal Conductivity

27 W/m·K15.6 BTU/hr·ft·°F
42 W/m·K24.3 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

10.8 µm/m·K6 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)

620°C1,148 °F
250°C482 °F

Min Service Temperature

-30°C-22 °F
-20°C-4 °F

Same in both: Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F

Electrical

Conductivity and insulation.

Electrical Conductivity

2.9 % IACS
8 % IACS

Electrical Resistivity

6×10⁻⁷ Ω·m23.6 µΩ·in
2.2×10⁻⁷ Ω·m8.66 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.45 V
—

Corrosion Resistance

30 / 100
12 / 100

Manufacturability

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

Machinability

38 / 100
22 / 100

Machinability Rating (AISI 1212 = 100 %)

45%
20%

Weldability

40 / 100
55 / 100

Brazeability / Solderability

30 / 100
20 / 100

Same in both: Formability (cold) 25 / 100 · Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

34 MJ/kg14,617 BTU/lb
28 MJ/kg12,038 BTU/lb

Embodied Carbon (primary production)

2.6 kg CO₂/kg
2.3 kg CO₂/kg

Embodied Water

65 L/kg7.8 gal/lb
45 L/kg5.4 gal/lb

Typical Recycled Content

30%
25%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

91 kN·m/kg
159 kN·m/kg

Specific Stiffness (E / density)

27.8 MN·m/kg
26.1 MN·m/kg

Modulus of Resilience

626 kJ/m³
2,689 kJ/m³

Thermal Diffusivity

7.4 mm²/s
11.4 mm²/s

Thermal Shock Resistance Index

8
21

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 scaleAR400A182 F92

Manufacturing and finishing

CapabilityA182 F92AR400
CNC machining—Yes
Sheet metal—Yes
Default condition—Q&T
Relative cost$$$$ High$$$ Premium
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.

A182 F92 vs AR400 — frequently asked

Is AR400 stronger than A182 F92?

Yes. AR400 has a typical yield strength of 1,050 MPa (152 ksi) against 520 MPa (75.4 ksi) for A182 F92 — about 102% more. Tensile strength is 1,250 MPa (181 ksi) vs 710 MPa (103 ksi).

Which is cheaper, A182 F92 or AR400?

AR400 is the lower-cost material: it sits in the premium tier ($$$) while A182 F92 is high ($$$$). 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, A182 F92 or AR400?

A182 F92. Its machinability rates fair (38/100) against poor (22/100) for AR400; for welding the order is AR400 first (good, 55/100) then A182 F92 (fair, 40/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in A182 F92 and AR400 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.