Stainless Steel PH 13-8 Mo-H1025 vs PH 13-8 Mo-H1150
Stainless Steel · PH 13-8 Mo temper comparison
PH 13-8 Mo-H1025 and PH 13-8 Mo-H1150 are two conditions of the same stainless steel grade, PH 13-8 Mo: H1025 (aged 552 °C (1025 °F) for 4 h) versus H1150 (overaged 621 °C (1150 °F) for 4 h, maximum toughness). The chemistry is identical, so every difference below comes from the condition. PH 13-8 Mo-H1025 is the stronger of the two: yield strength 1,310 MPa (190 ksi) against 965 MPa (140 ksi) for PH 13-8 Mo-H1150, about 36% more; tensile strength follows at 1,410 MPa (205 ksi) vs 1,070 MPa (155 ksi). In exchange, PH 13-8 Mo-H1150 is the more ductile: elongation 18% versus 14% for PH 13-8 Mo-H1025, and PH 13-8 Mo-H1025 is harder (405 HB vs 310 HB). PH 13-8 Mo-H1150 runs hotter in service (510°C vs 440°C continuous).
PH 13-8 Mo-H1025Choose it when strength drives the design.
PH 13-8 Mo-H1150Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.
PH 13-8 Mo-H1025 vs PH 13-8 Mo-H1150: 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.
PH 13-8 Mo-H1025PH 13-8 Mo-H1150
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)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell C
Same in both: Elastic (Young's) Modulus 203 GPa29.4 Msi · Shear Modulus 78 GPa11.3 Msi · Bulk Modulus 155 GPa22.5 Msi · Poisson's Ratio 0.28 · Compressive Strength 830 MPa120 ksi
Physical
Density and transition temperatures.
Same in both: Density 7.76 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 14 W/m·K8.1 BTU/hr·ft·°F · Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 10.6 µm/m·K5.9 µin/in·°F · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 1.7 % IACS · Electrical Resistivity 1.02×10⁻⁶ Ω·m40.2 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 %)
Same in both: Weldability 60 / 100 · Formability (cold) 40 / 100 · Brazeability / Solderability 50 / 100 · Polishability 80 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 62 MJ/kg26,655 BTU/lb · Embodied Carbon (primary production) 4.8 kg CO₂/kg · Embodied Water 110 L/kg13.2 gal/lb · Typical Recycled Content 30%
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.
PH 13-8 Mo-H1025 vs PH 13-8 Mo-H1150 — frequently asked
Is PH 13-8 Mo-H1025 stronger than PH 13-8 Mo-H1150?
Yes. PH 13-8 Mo-H1025 has a typical yield strength of 1,310 MPa (190 ksi) against 965 MPa (140 ksi) for PH 13-8 Mo-H1150 — about 36% more. Tensile strength is 1,410 MPa (205 ksi) vs 1,070 MPa (155 ksi).
Which condition does FabDigit quote by default, H1025 or H1150?
Condition A is the default PH 13-8 Mo condition in the FabDigit quote flow (neither H1025 nor H1150). 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, PH 13-8 Mo-H1025 or PH 13-8 Mo-H1150?
PH 13-8 Mo-H1150, by a small margin. Both rate poor for machinability — 32/100 against 27/100 for PH 13-8 Mo-H1025.
Ready to make it?
Upload a CAD file and FabDigit prices the part in PH 13-8 Mo-H1025 and PH 13-8 Mo-H1150 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.