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Steel AerMet 310 vs H11

Steel · grade comparison

Steel AerMet 310 and H11 are both steel grades. AerMet 310 is the stronger of the two: yield strength 1,960 MPa (284 ksi) against 510 MPa (74 ksi) for H11, about 3.8 times as much; tensile strength follows at 2,140 MPa (310 ksi) vs 800 MPa (116 ksi). In exchange, H11 is the more ductile: elongation 20% versus 10% for AerMet 310, and AerMet 310 is harder (640 HV vs 210 HV). H11 is stiffer (210 GPa vs 194 GPa) and H11 runs hotter in service (540°C vs 400°C continuous). On the shop floor, H11 machines more easily (good vs poor), AerMet 310 welds better (45 vs 35 out of 100), and H11 sits in a lower cost tier (standard, $$) than AerMet 310 (high, $$$$).

AerMet 310Choose it when strength drives the design, or when it will be welded.

H11Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

AerMet 310 vs H11: properties

AerMet 310H11

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

194 GPa28.1 Msi
210 GPa30.5 Msi

Shear Modulus

75 GPa10.9 Msi
81 GPa11.7 Msi

Bulk Modulus

162 GPa23.5 Msi
160 GPa23.2 Msi

Poisson's Ratio

0.3
0.29

Tensile Strength (Ultimate)

2,140 MPa310 ksi
800 MPa116 ksi

Yield Strength (0.2% offset)

1,960 MPa284 ksi
510 MPa74 ksi

Elongation at Break

10%
20%

Reduction in Area

50%
45%

Compressive Strength

2,050 MPa297 ksi
—

Shear Strength

1,290 MPa187 ksi
500 MPa72.5 ksi

Fatigue Strength (Endurance Limit)

800 MPa116 ksi
—

Fracture Toughness (K_IC)

71 MPa·√m64.6 ksi·√in
—

Charpy V-Notch Impact (RT)

24 J17.7 ft·lbf
40 J29.5 ft·lbf

Hardness, Rockwell C

57 HRC
—

Hardness, Vickers

640 HV
210 HV

Hardness, Brinell

—
200 HB

Hardness, Rockwell B

—
94 HRB

Physical

Density and transition temperatures.

Density

8 g/cm³0.29 lb/in³
7.8 g/cm³0.28 lb/in³

Melting Point (Solidus)

1,420°C2,588 °F
1,427°C2,601 °F

Same in both: Liquidus Temperature 1,470°C2,678 °F

Thermal

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

Thermal Conductivity

20 W/m·K11.6 BTU/hr·ft·°F
25 W/m·K14.4 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

11.3 µm/m·K6.3 µin/in·°F
11.9 µm/m·K6.6 µin/in·°F

Max Service Temperature (continuous)

400°C752 °F
540°C1,004 °F

Min Service Temperature

-73°C-99 °F
-40°C-40 °F

Same in both: Latent Heat of Fusion 250 J/g107 BTU/lb

Electrical

Conductivity and insulation.

Electrical Resistivity

6.5×10⁻⁷ Ω·m25.6 µΩ·in
5.2×10⁻⁷ Ω·m20.5 µΩ·in

Electrical Conductivity

—
3.3 % IACS

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

25 / 100
18 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.6 V

Manufacturability

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

Machinability

15 / 100
55 / 100

Machinability Rating (AISI 1212 = 100 %)

15%
45%

Weldability

45 / 100
35 / 100

Formability (cold)

8 / 100
30 / 100

Brazeability / Solderability

30 / 100
40 / 100

Polishability

70 / 100
75 / 100

Castability

—
30 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

100 MJ/kg42,992 BTU/lb
34 MJ/kg14,617 BTU/lb

Embodied Carbon (primary production)

7.5 kg CO₂/kg
2.5 kg CO₂/kg

Embodied Water

200 L/kg24 gal/lb
70 L/kg8.4 gal/lb

Typical Recycled Content

20%
40%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

268 kN·m/kg
103 kN·m/kg

Specific Stiffness (E / density)

24.3 MN·m/kg
26.9 MN·m/kg

Modulus of Resilience

9,901 kJ/m³
619 kJ/m³

Thermal Diffusivity

5.6 mm²/s
7 mm²/s

Thermal Shock Resistance Index

20
8

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 scaleH11AerMet 310

Manufacturing and finishing

CapabilityAerMet 310H11
CNC machining—Yes
Default condition—Annealed
Relative cost$$$$ High$$ 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.

AerMet 310 vs H11 — frequently asked

Is AerMet 310 stronger than H11?

Yes. AerMet 310 has a typical yield strength of 1,960 MPa (284 ksi) against 510 MPa (74 ksi) for H11 — about 3.8 times as much. Tensile strength is 2,140 MPa (310 ksi) vs 800 MPa (116 ksi).

Which is cheaper, AerMet 310 or H11?

H11 is the lower-cost material: it sits in the standard tier ($$) while AerMet 310 is high ($$$$). 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, AerMet 310 or H11?

H11. Its machinability rates good (55/100) against poor (15/100) for AerMet 310; for welding the order is AerMet 310 first (fair, 45/100) then H11 (fair, 35/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in AerMet 310 and H11 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.