Stainless Steel 13-8 PH vs Custom 465
Stainless Steel · grade comparison
Stainless Steel 13-8 PH and Custom 465 are both stainless steel grades, both high strength ss. Both yield at about 827 MPa — strength does not separate them. Custom 465 is the more ductile: elongation 15% versus 13% for 13-8 PH, and 13-8 PH is harder (33 HRC vs 30 HRC). Custom 465 conducts heat better (16.5 W/m·K vs 14 W/m·K). On the shop floor, Custom 465 sits in a lower cost tier (premium, $$$) than 13-8 PH (specialty, $$$$$).
Custom 465Choose it when the part is bent, formed or impact-loaded, or when cost is the deciding factor.
13-8 PH 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.
Shear Modulus
Bulk Modulus
Poisson's Ratio
Yield Strength (0.2% offset)
Elongation at Break
Compressive Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell C
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 200 GPa29 Msi · Tensile Strength (Ultimate) 1,000 MPa145 ksi · Reduction in Area 55% · Shear Strength 620 MPa89.9 ksi · Fracture Toughness (K_IC) 130 MPa·√m118 ksi·√in
Physical
Density and transition temperatures.
Density
Same in both: 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.
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).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.15 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Castability
Brazeability / Solderability
Same in both: Polishability 80 / 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 Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
Same in both: Specific Strength (UTS / density) 129 kN·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 | 13-8 PH | Custom 465 |
|---|---|---|
| Default condition | Condition A | 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.
13-8 PH vs Custom 465 — frequently asked
What is the difference between 13-8 PH and Custom 465?
Stainless Steel 13-8 PH and Custom 465 are both stainless steel grades, both high strength ss. Both yield at about 827 MPa — strength does not separate them. Custom 465 is the more ductile: elongation 15% versus 13% for 13-8 PH, and 13-8 PH is harder (33 HRC vs 30 HRC).
Which is cheaper, 13-8 PH or Custom 465?
Custom 465 is the lower-cost material: it sits in the premium tier ($$$) while 13-8 PH is specialty ($$$$$). 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, 13-8 PH or Custom 465?
Custom 465. Its machinability rates fair (38/100) against poor (32/100) for 13-8 PH; for welding the order is 13-8 PH first (good, 62/100) then Custom 465 (good, 55/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 13-8 PH 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.