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Stainless Steel 410 vs 415

Stainless Steel · grade comparison

Stainless Steel 410 and 415 are both stainless steel grades. 415 is the stronger of the two: yield strength 700 MPa (102 ksi) against 310 MPa (45 ksi) for 410, about 126% more; tensile strength follows at 850 MPa (123 ksi) vs 517 MPa (75 ksi). In exchange, 410 is the more ductile: elongation 25% versus 18% for 415, and 415 is harder (260 HB vs 155 HB). 410 runs hotter in service (650°C vs 450°C continuous). On the shop floor, 410 machines more easily (good vs fair) and 415 welds better (very good vs fair).

410Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

415Choose it when strength drives the design, or when it will be welded.

410 vs 415: properties

410415

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Shear Modulus

78 GPa11.3 Msi
77 GPa11.2 Msi

Bulk Modulus

160 GPa23.2 Msi
165 GPa23.9 Msi

Poisson's Ratio

0.29
0.3

Tensile Strength (Ultimate)

517 MPa75 ksi
850 MPa123 ksi

Yield Strength (0.2% offset)

310 MPa45 ksi
700 MPa102 ksi

Elongation at Break

25%
18%

Compressive Strength

320 MPa46.4 ksi
700 MPa102 ksi

Shear Strength

380 MPa55.1 ksi
520 MPa75.4 ksi

Fatigue Strength (Endurance Limit)

280 MPa40.6 ksi
400 MPa58 ksi

Fracture Toughness (K_IC)

90 MPa·√m81.9 ksi·√in
150 MPa·√m137 ksi·√in

Charpy V-Notch Impact (RT)

80 J59 ft·lbf
120 J88.5 ft·lbf

Hardness, Brinell

155 HB
260 HB

Hardness, Rockwell B

82 HRB
—

Hardness, Vickers

160 HV
275 HV

Hardness, Rockwell C

—
25 HRC

Same in both: Elastic (Young's) Modulus 200 GPa29 Msi · Reduction in Area 60%

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,480°C2,696 °F
1,400°C2,552 °F

Liquidus Temperature

1,530°C2,786 °F
1,480°C2,696 °F

Same in both: Density 7.7 g/cm³0.28 lb/in³

Thermal

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

Thermal Conductivity

24.9 W/m·K14.4 BTU/hr·ft·°F
25 W/m·K14.4 BTU/hr·ft·°F

Specific Heat Capacity

460 J/kg·K0.11 BTU/lb·°F
430 J/kg·K0.1 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

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

Max Service Temperature (continuous)

650°C1,202 °F
450°C842 °F

Min Service Temperature

-30°C-22 °F
-100°C-148 °F

Same in both: Latent Heat of Fusion 270 J/g116 BTU/lb

Electrical

Conductivity and insulation.

Electrical Conductivity

3 % IACS
2.9 % IACS

Electrical Resistivity

5.7×10⁻⁷ Ω·m22.4 µΩ·in
6×10⁻⁷ Ω·m23.6 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.32 V
-0.3 V

Corrosion Resistance

45 / 100
48 / 100

Manufacturability

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

Machinability

55 / 100
40 / 100

Machinability Rating (AISI 1212 = 100 %)

54%
45%

Weldability

45 / 100
72 / 100

Formability (cold)

55 / 100
35 / 100

Brazeability / Solderability

55 / 100
40 / 100

Polishability

80 / 100
65 / 100

Castability

—
70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

45 MJ/kg19,347 BTU/lb
53 MJ/kg22,786 BTU/lb

Embodied Carbon (primary production)

3.4 kg CO₂/kg
4.5 kg CO₂/kg

Embodied Water

130 L/kg15.6 gal/lb
140 L/kg16.8 gal/lb

Typical Recycled Content

60%
50%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

67 kN·m/kg
110 kN·m/kg

Modulus of Resilience

240 kJ/m³
1,225 kJ/m³

Thermal Diffusivity

7 mm²/s
7.6 mm²/s

Thermal Shock Resistance Index

7
10

Same in both: Specific Stiffness (E / density) 26 MN·m/kg

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 scale410415

Manufacturing and finishing

Capability410415
CNC machiningYes—
Sheet metalYes—
Default conditionAnnealed—
Relative cost$$$ Premium$$$ Premium
Min. machined wall0.8 mm—
Best machined surfaceRa 1.6 µm—
AlCrNYes—
AlTiNYes—
Black OxideYes—
CVD Al2O3Yes—
CVD TiCNYes—
CVD TiNYes—
CerakoteYes—
Chrome PlatingYes—
CrNYes—
DLCYes—
ElectropolishingYes—
HVOF CoatingYes—
MoS2Yes—
Multilayer CVDYes—
Nickel PlatingYes—
PTFE CoatingYes—
PaintingYes—
Passivation (Stainless Steel)Yes—

They share 7 finishes: Electroless Nickel (EN), Epoxy Coating, Gold Plating, Hard Chrome Plating, Pickling, Plasma Spray, Silver Plating.

410 vs 415 — frequently asked

Is 415 stronger than 410?

Yes. 415 has a typical yield strength of 700 MPa (102 ksi) against 310 MPa (45 ksi) for 410 — about 126% more. Tensile strength is 850 MPa (123 ksi) vs 517 MPa (75 ksi).

Which is cheaper, 410 or 415?

Both sit in the same relative cost tier ($$$, premium); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which is easier to machine, 410 or 415?

410. Its machinability rates good (55/100) against fair (40/100) for 415; for welding the order is 415 first (very good, 72/100) then 410 (fair, 45/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 410 and 415 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.