Stainless Steel Alloy 465-H1025 vs Alloy 465-H900
Stainless Steel · Alloy 465 temper comparison
Alloy 465-H1025 and Alloy 465-H900 are two conditions of the same stainless steel grade, Alloy 465: H1025 (aged 552 °C (1025 °F) for 4 h) 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 1,480 MPa (215 ksi) for Alloy 465-H1025, about 14% more; tensile strength follows at 1,795 MPa (260 ksi) vs 1,550 MPa (225 ksi). In exchange, Alloy 465-H1025 is the more ductile: elongation 15% versus 12% for Alloy 465-H900, and Alloy 465-H900 is harder (495 HB vs 410 HB). Alloy 465-H1025 runs hotter in service (420°C vs 340°C continuous).
Alloy 465-H1025Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.
Alloy 465-H900Choose it when strength drives the design.
Alloy 465-H1025 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).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.25 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Formability (cold)
Same in both: Weldability 60 / 100 · 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-H1025 vs Alloy 465-H900 — frequently asked
Is Alloy 465-H900 stronger than Alloy 465-H1025?
Yes. Alloy 465-H900 has a typical yield strength of 1,690 MPa (245 ksi) against 1,480 MPa (215 ksi) for Alloy 465-H1025 — about 14% more. Tensile strength is 1,795 MPa (260 ksi) vs 1,550 MPa (225 ksi).
Which condition does FabDigit quote by default, H1025 or H900?
H1000 is the default Alloy 465 condition in the FabDigit quote flow (neither H1025 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-H1025 or Alloy 465-H900?
Alloy 465-H1025, by a small margin. Both rate poor for machinability — 30/100 against 22/100 for Alloy 465-H900.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Alloy 465-H1025 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.