FabDigitFabDigit

Stainless Steel PH 13-8 Mo-H1025 vs PH 13-8 Mo-H1100

Stainless Steel · PH 13-8 Mo temper comparison

PH 13-8 Mo-H1025 and PH 13-8 Mo-H1100 are two conditions of the same stainless steel grade, PH 13-8 Mo: H1025 (aged 552 °C (1025 °F) for 4 h) versus H1100 (aged 593 °C (1100 °F) for 4 h). 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 1,105 MPa (160 ksi) for PH 13-8 Mo-H1100, about 19% more; tensile strength follows at 1,410 MPa (205 ksi) vs 1,210 MPa (175 ksi). In exchange, PH 13-8 Mo-H1100 is the more ductile: elongation 16% versus 14% for PH 13-8 Mo-H1025, and PH 13-8 Mo-H1025 is harder (405 HB vs 345 HB). PH 13-8 Mo-H1100 runs hotter in service (480°C vs 440°C continuous).

PH 13-8 Mo-H1025Choose it when strength drives the design.

PH 13-8 Mo-H1100Choose 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-H1100: properties

PH 13-8 Mo-H1025PH 13-8 Mo-H1100

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

1,410 MPa205 ksi
1,210 MPa175 ksi

Yield Strength (0.2% offset)

1,310 MPa190 ksi
1,105 MPa160 ksi

Elongation at Break

14%
16%

Reduction in Area

57%
60%

Shear Strength

855 MPa124 ksi
745 MPa108 ksi

Fatigue Strength (Endurance Limit)

670 MPa97.2 ksi
590 MPa85.6 ksi

Charpy V-Notch Impact (RT)

38 J28 ft·lbf
60 J44.3 ft·lbf

Hardness, Brinell

405 HB
345 HB

Hardness, Rockwell C

43 HRC
37 HRC

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)

440°C824 °F
480°C896 °F

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

57 / 100
55 / 100

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

27 / 100
30 / 100

Machinability Rating (AISI 1212 = 100 %)

24%
28%

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.

3005007001,0001,5002,0007.27.47.67.888.2Density (g/cm³)Yield strength (MPa) — log scalePH 13-8 Mo

PH 13-8 Mo-H1025 vs PH 13-8 Mo-H1100 — frequently asked

Is PH 13-8 Mo-H1025 stronger than PH 13-8 Mo-H1100?

Yes. PH 13-8 Mo-H1025 has a typical yield strength of 1,310 MPa (190 ksi) against 1,105 MPa (160 ksi) for PH 13-8 Mo-H1100 — about 19% more. Tensile strength is 1,410 MPa (205 ksi) vs 1,210 MPa (175 ksi).

Which condition does FabDigit quote by default, H1025 or H1100?

Condition A is the default PH 13-8 Mo condition in the FabDigit quote flow (neither H1025 nor H1100). 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.

When should I choose PH 13-8 Mo-H1025 over PH 13-8 Mo-H1100?

Pick PH 13-8 Mo-H1025 when strength drives the design. Pick PH 13-8 Mo-H1100 when the part is bent, formed or impact-loaded, or when the part sees heat.

Ready to make it?

Upload a CAD file and FabDigit prices the part in PH 13-8 Mo-H1025 and PH 13-8 Mo-H1100 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.