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Stainless Steel 410 vs SUH3

Stainless Steel · grade comparison

Stainless Steel 410 and SUH3 are both stainless steel grades. SUH3 is the stronger of the two: yield strength 780 MPa (113 ksi) against 310 MPa (45 ksi) for 410, about 152% more; tensile strength follows at 1,010 MPa (146 ksi) vs 517 MPa (75 ksi). In exchange, 410 is the more ductile: elongation 25% versus 18% for SUH3, and SUH3 is harder (295 HB vs 155 HB). SUH3 is stiffer (213 GPa vs 200 GPa) and SUH3 runs hotter in service (800°C vs 650°C continuous). On the shop floor, 410 machines more easily (good vs fair), 410 welds better (fair vs poor), and SUH3 sits in a lower cost tier (standard, $$) than 410 (premium, $$$).

410Choose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

SUH3Choose it when strength drives the design, or when the part sees heat.

410 vs SUH3: properties

410SUH3

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

200 GPa29 Msi
213 GPa30.9 Msi

Shear Modulus

78 GPa11.3 Msi
82 GPa11.9 Msi

Tensile Strength (Ultimate)

517 MPa75 ksi
1,010 MPa146 ksi

Yield Strength (0.2% offset)

310 MPa45 ksi
780 MPa113 ksi

Elongation at Break

25%
18%

Reduction in Area

60%
48%

Compressive Strength

320 MPa46.4 ksi
—

Shear Strength

380 MPa55.1 ksi
620 MPa89.9 ksi

Fatigue Strength (Endurance Limit)

280 MPa40.6 ksi
470 MPa68.2 ksi

Fracture Toughness (K_IC)

90 MPa·√m81.9 ksi·√in
45 MPa·√m41 ksi·√in

Charpy V-Notch Impact (RT)

80 J59 ft·lbf
20 J14.8 ft·lbf

Hardness, Brinell

155 HB
295 HB

Hardness, Rockwell B

82 HRB
—

Hardness, Vickers

160 HV
310 HV

Hardness, Rockwell C

—
31 HRC

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

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,480°C2,696 °F
1,420°C2,588 °F

Liquidus Temperature

1,530°C2,786 °F
1,470°C2,678 °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
22 W/m·K12.7 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

9.9 µm/m·K5.5 µin/in·°F
11.5 µm/m·K6.4 µin/in·°F

Latent Heat of Fusion

270 J/g116 BTU/lb
260 J/g112 BTU/lb

Max Service Temperature (continuous)

650°C1,202 °F
800°C1,472 °F

Min Service Temperature

-30°C-22 °F
-20°C-4 °F

Same in both: Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F

Electrical

Conductivity and insulation.

Electrical Conductivity

3 % IACS
2.5 % IACS

Electrical Resistivity

5.7×10⁻⁷ Ω·m22.4 µΩ·in
7×10⁻⁷ Ω·m27.6 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.32 V
—

Corrosion Resistance

45 / 100
40 / 100

Manufacturability

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

Machinability

55 / 100
35 / 100

Machinability Rating (AISI 1212 = 100 %)

54%
35%

Weldability

45 / 100
25 / 100

Formability (cold)

55 / 100
25 / 100

Brazeability / Solderability

55 / 100
45 / 100

Polishability

80 / 100
65 / 100

Castability

—
40 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

45 MJ/kg19,347 BTU/lb
52 MJ/kg22,356 BTU/lb

Embodied Carbon (primary production)

3.4 kg CO₂/kg
3.6 kg CO₂/kg

Embodied Water

130 L/kg15.6 gal/lb
90 L/kg10.8 gal/lb

Typical Recycled Content

60%
55%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

67 kN·m/kg
131 kN·m/kg

Specific Stiffness (E / density)

26 MN·m/kg
27.7 MN·m/kg

Modulus of Resilience

240 kJ/m³
1,428 kJ/m³

Thermal Diffusivity

7 mm²/s
6.2 mm²/s

Thermal Shock Resistance Index

7
9

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 scale410SUH3

Manufacturing and finishing

Capability410SUH3
CNC machiningYes—
Sheet metalYes—
Default conditionAnnealed—
Relative cost$$$ Premium$$ Standard
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 SUH3 — frequently asked

Is SUH3 stronger than 410?

Yes. SUH3 has a typical yield strength of 780 MPa (113 ksi) against 310 MPa (45 ksi) for 410 — about 152% more. Tensile strength is 1,010 MPa (146 ksi) vs 517 MPa (75 ksi).

Which is cheaper, 410 or SUH3?

SUH3 is the lower-cost material: it sits in the standard tier ($$) while 410 is premium ($$$). 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, 410 or SUH3?

410. Its machinability rates good (55/100) against fair (35/100) for SUH3; for welding the order is 410 first (fair, 45/100) then SUH3 (poor, 25/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 410 and SUH3 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.