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Stainless Steel XM-32-H1100 vs XM-32-H900

Stainless Steel · XM-32 temper comparison

XM-32-H1100 and XM-32-H900 are two conditions of the same stainless steel grade, XM-32: H1100 (aged 593 °C (1100 °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. XM-32-H900 is the stronger of the two: yield strength 1,205 MPa (175 ksi) against 930 MPa (135 ksi) for XM-32-H1100, about 30% more; tensile strength follows at 1,275 MPa (185 ksi) vs 1,035 MPa (150 ksi). In exchange, XM-32-H1100 is the more ductile: elongation 19% versus 14% for XM-32-H900, and XM-32-H1100 is harder (302 HB vs 285 HB). XM-32-H1100 runs hotter in service (500°C vs 400°C continuous).

XM-32-H1100Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

XM-32-H900Choose it when strength drives the design.

XM-32-H1100 vs XM-32-H900: properties

XM-32-H1100XM-32-H900

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

1,035 MPa150 ksi
1,275 MPa185 ksi

Yield Strength (0.2% offset)

930 MPa135 ksi
1,205 MPa175 ksi

Elongation at Break

19%
14%

Reduction in Area

60%
48%

Compressive Strength

950 MPa138 ksi
760 MPa110 ksi

Shear Strength

640 MPa92.8 ksi
780 MPa113 ksi

Fatigue Strength (Endurance Limit)

470 MPa68.2 ksi
560 MPa81.2 ksi

Fracture Toughness (K_IC)

95 MPa·√m86.5 ksi·√in
70 MPa·√m63.7 ksi·√in

Charpy V-Notch Impact (RT)

75 J55.3 ft·lbf
35 J25.8 ft·lbf

Hardness, Brinell

302 HB
285 HB

Hardness, Rockwell C

32 HRC
41 HRC

Hardness, Vickers

320 HV
405 HV

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 0.28

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 1,450°C2,642 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

18.5 W/m·K10.7 BTU/hr·ft·°F
18 W/m·K10.4 BTU/hr·ft·°F

Max Service Temperature (continuous)

500°C932 °F
400°C752 °F

Same in both: Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 10.8 µm/m·K6 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Min Service Temperature -75°C-103 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

2.3 % IACS
2.2 % IACS

Electrical Resistivity

7.7×10⁻⁷ Ω·m30.3 µΩ·in
8×10⁻⁷ Ω·m31.5 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

58 / 100
52 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.28 V

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

40 / 100
45 / 100

Machinability Rating (AISI 1212 = 100 %)

40%
30%

Weldability

50 / 100
55 / 100

Formability (cold)

45 / 100
60 / 100

Same in both: Castability 45 / 100 · Brazeability / Solderability 50 / 100 · Polishability 70 / 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 90 L/kg10.8 gal/lb · Typical Recycled Content 45%

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 scaleXM-32

XM-32-H1100 vs XM-32-H900 — frequently asked

Is XM-32-H900 stronger than XM-32-H1100?

Yes. XM-32-H900 has a typical yield strength of 1,205 MPa (175 ksi) against 930 MPa (135 ksi) for XM-32-H1100 — about 30% more. Tensile strength is 1,275 MPa (185 ksi) vs 1,035 MPa (150 ksi).

Which condition does FabDigit quote by default, H1100 or H900?

A is the default XM-32 condition in the FabDigit quote flow (neither H1100 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, XM-32-H1100 or XM-32-H900?

XM-32-H900, by a small margin. Both rate fair for machinability — 45/100 against 40/100 for XM-32-H1100; for welding the order is XM-32-H900 first (good, 55/100) then XM-32-H1100 (fair, 50/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in XM-32-H1100 and XM-32-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.