Stainless Steel Alloy 465-A vs Alloy 465-H900
Stainless Steel · Alloy 465 temper comparison
Alloy 465-A and Alloy 465-H900 are two conditions of the same stainless steel grade, Alloy 465: A (solution annealed) versus H900 (aged 482 °C (900 °F) for 1 h, peak hardness). The chemistry is identical, so every difference below comes from the condition. Alloy 465-H900 is the stronger of the two: yield strength 1,690 MPa (245 ksi) against 760 MPa (110 ksi) for Alloy 465-A, about 122% more; tensile strength follows at 1,795 MPa (260 ksi) vs 1,000 MPa (145 ksi). In exchange, Alloy 465-A is the more ductile: elongation 18% versus 12% for Alloy 465-H900, and Alloy 465-H900 is harder (495 HB vs 302 HB). Alloy 465-H900 runs hotter in service (340°C vs 300°C continuous). On the shop floor, Alloy 465-A machines more easily (fair vs poor).
Alloy 465-AChoose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.
Alloy 465-H900Choose it when strength drives the design, or when the part sees heat.
Alloy 465-A vs Alloy 465-H900: 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.
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell C
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 200 GPa29 Msi · Shear Modulus 77 GPa11.2 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Compressive Strength 1,620 MPa235 ksi
Physical
Density and transition temperatures.
Same in both: Density 7.78 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,400°C2,552 °F · Liquidus Temperature 1,440°C2,624 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 16 W/m·K9.2 BTU/hr·ft·°F · Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 10.4 µm/m·K5.8 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 2.2 % IACS · Electrical Resistivity 8×10⁻⁷ Ω·m31.5 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.25 V · Corrosion Resistance 52 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Same in both: Castability 25 / 100 · Brazeability / Solderability 40 / 100 · Polishability 85 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 80 MJ/kg34,394 BTU/lb · Embodied Carbon (primary production) 6.5 kg CO₂/kg · Embodied Water 250 L/kg30 gal/lb · Typical Recycled Content 25%
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.
Alloy 465-A vs Alloy 465-H900 — frequently asked
Is Alloy 465-H900 stronger than Alloy 465-A?
Yes. Alloy 465-H900 has a typical yield strength of 1,690 MPa (245 ksi) against 760 MPa (110 ksi) for Alloy 465-A — about 122% more. Tensile strength is 1,795 MPa (260 ksi) vs 1,000 MPa (145 ksi).
Which condition does FabDigit quote by default, A or H900?
H1000 is the default Alloy 465 condition in the FabDigit quote flow (neither A nor H900). The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.
Which is easier to machine, Alloy 465-A or Alloy 465-H900?
Alloy 465-A. Its machinability rates fair (40/100) against poor (22/100) for Alloy 465-H900; for welding the order is Alloy 465-A first (good, 65/100) then Alloy 465-H900 (good, 60/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in Alloy 465-A and Alloy 465-H900 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.