Stainless Steel 410S vs 430F
Stainless Steel · grade comparison
Stainless Steel 410S and 430F are both stainless steel grades. 430F is the stronger of the two: yield strength 380 MPa (55.1 ksi) against 265 MPa (38.4 ksi) for 410S, about 43% more; tensile strength follows at 550 MPa (79.8 ksi) vs 460 MPa (66.7 ksi). In exchange, 410S is the more ductile: elongation 30% versus 25% for 430F, and 430F is harder (175 HB vs 150 HB). On the shop floor, 430F machines more easily (very good vs fair), 410S welds better (very good vs poor), and 430F sits in a lower cost tier (standard, $$) than 410S (premium, $$$).
410SChoose it when the part is bent, formed or impact-loaded, or when it will be welded.
430FChoose it when strength drives the design, or when the part is machined in volume.
410S vs 430F: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all stainless steel grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all stainless steel grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Bulk Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 200 GPa29 Msi · Shear Modulus 77 GPa11.2 Msi
Physical
Density and transition temperatures.
Melting Point (Solidus)
Liquidus Temperature
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
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Min Service Temperature
Same in both: Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Latent Heat of Fusion 270 J/g116 BTU/lb
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Brazeability / Solderability
Polishability
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
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.
Manufacturing and finishing
| Capability | 410S | 430F |
|---|---|---|
| Sheet metal | Yes | — |
| Default condition | Annealed | Annealed |
| Relative cost | $$$ Premium | $$ Standard |
| Min. machined wall | 0.8 mm | 0.8 mm |
| Best machined surface | Ra 1.6 µm | Ra 1.6 µm |
Both are offered for CNC machining. 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.
410S vs 430F — frequently asked
Is 430F stronger than 410S?
Yes. 430F has a typical yield strength of 380 MPa (55.1 ksi) against 265 MPa (38.4 ksi) for 410S — about 43% more. Tensile strength is 550 MPa (79.8 ksi) vs 460 MPa (66.7 ksi).
Which is cheaper, 410S or 430F?
430F is the lower-cost material: it sits in the standard tier ($$) while 410S is premium ($$$). 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, 410S or 430F?
430F. Its machinability rates very good (72/100) against fair (50/100) for 410S; for welding the order is 410S first (very good, 70/100) then 430F (poor, 20/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 410S and 430F 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.