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Stainless Steel 310 vs 410HT

Stainless Steel · grade comparison

Stainless Steel 310 and 410HT are both stainless steel grades, both heat resistant ss. 310 is the stronger of the two: tensile strength 655 MPa (95 ksi) against 490 MPa (71.1 ksi) for 410HT, about 34% more. 310 is the more ductile: elongation 45% versus 25% for 410HT. 310 runs hotter in service (1,050°C vs 650°C continuous) and 410HT conducts heat better (24.9 W/m·K vs 14.2 W/m·K). On the shop floor, 410HT machines more easily (50 vs 35 out of 100), 310 welds better (good vs fair), and 410HT sits in a lower cost tier (premium, $$$) than 310 (specialty, $$$$$).

310Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

410HTChoose it when the part is machined in volume, or when cost is the deciding factor.

310 vs 410HT: properties

310410HT

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Shear Modulus

77 GPa11.2 Msi
78 GPa11.3 Msi

Bulk Modulus

158 GPa22.9 Msi
160 GPa23.2 Msi

Poisson's Ratio

0.29
0.28

Tensile Strength (Ultimate)

655 MPa95 ksi
490 MPa71.1 ksi

Yield Strength (0.2% offset)

310 MPa45 ksi
300 MPa43.5 ksi

Elongation at Break

45%
25%

Reduction in Area

60%
55%

Compressive Strength

310 MPa45 ksi
300 MPa43.5 ksi

Shear Strength

430 MPa62.4 ksi
340 MPa49.3 ksi

Fatigue Strength (Endurance Limit)

250 MPa36.3 ksi
275 MPa39.9 ksi

Fracture Toughness (K_IC)

160 MPa·√m146 ksi·√in
85 MPa·√m77.4 ksi·√in

Charpy V-Notch Impact (RT)

130 J95.9 ft·lbf
55 J40.6 ft·lbf

Hardness, Brinell

150 HB
155 HB

Hardness, Rockwell B

85 HRB
82 HRB

Same in both: Elastic (Young's) Modulus 200 GPa29 Msi · Hardness, Vickers 160 HV

Physical

Density and transition temperatures.

Density

7.9 g/cm³0.29 lb/in³
7.7 g/cm³0.28 lb/in³

Melting Point (Solidus)

1,400°C2,552 °F
1,480°C2,696 °F

Liquidus Temperature

1,450°C2,642 °F
1,530°C2,786 °F

Thermal

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

Thermal Conductivity

14.2 W/m·K8.2 BTU/hr·ft·°F
24.9 W/m·K14.4 BTU/hr·ft·°F

Specific Heat Capacity

500 J/kg·K0.12 BTU/lb·°F
460 J/kg·K0.11 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

15.9 µm/m·K8.8 µin/in·°F
9.9 µm/m·K5.5 µin/in·°F

Latent Heat of Fusion

280 J/g120 BTU/lb
270 J/g116 BTU/lb

Max Service Temperature (continuous)

1,050°C1,922 °F
650°C1,202 °F

Min Service Temperature

-196°C-321 °F
-30°C-22 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

2.2 % IACS
3 % IACS

Electrical Resistivity

7.8×10⁻⁷ Ω·m30.7 µΩ·in
5.7×10⁻⁷ Ω·m22.4 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.08 V
-0.35 V

Corrosion Resistance

68 / 100
40 / 100

Manufacturability

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

Machinability

35 / 100
50 / 100

Machinability Rating (AISI 1212 = 100 %)

40%
50%

Weldability

65 / 100
40 / 100

Formability (cold)

70 / 100
45 / 100

Brazeability / Solderability

60 / 100
45 / 100

Polishability

60 / 100
70 / 100

Castability

—
50 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

62 MJ/kg26,655 BTU/lb
53 MJ/kg22,786 BTU/lb

Embodied Carbon (primary production)

5.5 kg CO₂/kg
4.5 kg CO₂/kg

Embodied Water

210 L/kg25.2 gal/lb
130 L/kg15.6 gal/lb

Typical Recycled Content

45%
60%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

83 kN·m/kg
64 kN·m/kg

Specific Stiffness (E / density)

25.3 MN·m/kg
26 MN·m/kg

Modulus of Resilience

240 kJ/m³
225 kJ/m³

Thermal Diffusivity

3.6 mm²/s
7 mm²/s

Thermal Shock Resistance Index

3
6

Strength versus weight

Yield strength against density for every stainless steel grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

3005007001,0001,5002,0007.27.47.67.888.2Density (g/cm³)Yield strength (MPa) — log scale310410HT

Manufacturing and finishing

Capability310410HT
Default conditionSolution AnnealedAnnealed
Relative cost$$$$$ Specialty$$$ Premium
Min. machined wall0.8 mm0.8 mm
Best machined surfaceRa 1.6 µmRa 1.6 µm

Both are offered for CNC machining and Sheet metal. Both take the same 32 finishes: AlCrN, AlTiN, Black Oxide, CVD Al2O3, CVD TiCN, CVD TiN, Cerakote, Chrome Plating, CrN, DLC, Electroless Nickel (EN), Electropolishing and 20 more.

310 vs 410HT — frequently asked

Is 310 stronger than 410HT?

Yes. 310 has a typical tensile strength of 655 MPa (95 ksi) against 490 MPa (71.1 ksi) for 410HT — about 34% more.

Which is cheaper, 310 or 410HT?

410HT is the lower-cost material: it sits in the premium tier ($$$) while 310 is specialty ($$$$$). 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, 310 or 410HT?

410HT, by a small margin. Both rate fair for machinability — 50/100 against 35/100 for 310; for welding the order is 310 first (good, 65/100) then 410HT (fair, 40/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 310 and 410HT 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.