Stainless Steel A286 vs Custom 465
Stainless Steel · grade comparison
Stainless Steel A286 and Custom 465 are both stainless steel grades. Custom 465 is the stronger of the two: yield strength 795 MPa (115 ksi) against 310 MPa (45 ksi) for A286, about 156% more; tensile strength follows at 1,000 MPa (145 ksi) vs 690 MPa (100 ksi). In exchange, A286 is the more ductile: elongation 40% versus 15% for Custom 465. A286 runs hotter in service (650°C vs 400°C continuous) and Custom 465 conducts heat better (16.5 W/m·K vs 12.6 W/m·K). On the shop floor, Custom 465 machines more easily (fair vs poor) and Custom 465 sits in a lower cost tier (premium, $$$) than A286 (specialty, $$$$$).
A286Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.
Custom 465Choose it when strength drives the design, or when the part is machined in volume.
A286 vs Custom 465: 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.
Elastic (Young's) Modulus
Bulk Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Compressive Strength
Fracture Toughness (K_IC)
Hardness, Rockwell C
Hardness, Vickers
Same in both: Shear Modulus 77 GPa11.2 Msi · Reduction in Area 55%
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Liquidus Temperature
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Thermal Expansion (CTE, 20–100 °C)
Latent Heat of Fusion
Max Service Temperature (continuous)
Min Service Temperature
Same in both: Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F
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 %)
Formability (cold)
Castability
Brazeability / Solderability
Polishability
Same in both: Weldability 55 / 100
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)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
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 | A286 | Custom 465 |
|---|---|---|
| Default condition | Solution Annealed | Condition A |
| Relative cost | $$$$$ Specialty | $$$ Premium |
| 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 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.
A286 vs Custom 465 — frequently asked
Is Custom 465 stronger than A286?
Yes. Custom 465 has a typical yield strength of 795 MPa (115 ksi) against 310 MPa (45 ksi) for A286 — about 156% more. Tensile strength is 1,000 MPa (145 ksi) vs 690 MPa (100 ksi).
Which is cheaper, A286 or Custom 465?
Custom 465 is the lower-cost material: it sits in the premium tier ($$$) while A286 is specialty ($$$$$). 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, A286 or Custom 465?
Custom 465. Its machinability rates fair (38/100) against poor (25/100) for A286.
Ready to make it?
Upload a CAD file and FabDigit prices the part in A286 and Custom 465 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.