Steel M10-ANN vs M10 HT-NIT
Steel · M10 temper comparison
M10-ANN and M10 HT-NIT are two conditions of the same steel grade, M10: ANN (annealed) versus HT-NIT (hardened + nitrided / oxynitrided surface). The chemistry is identical, so every difference below comes from the condition. M10 HT-NIT is the stronger of the two: yield strength 1,950 MPa (283 ksi) against 550 MPa (79.8 ksi) for M10-ANN, about 3.5 times as much; tensile strength follows at 2,150 MPa (312 ksi) vs 830 MPa (120 ksi). In exchange, M10-ANN is the more ductile: elongation 16% versus 0.5% for M10 HT-NIT, and M10 HT-NIT is harder (63 HRC vs 22 HRC). M10 HT-NIT runs hotter in service (560°C vs 250°C continuous) and M10-ANN conducts heat better (24 W/m·K vs 21 W/m·K). On the shop floor, M10-ANN machines more easily (fair vs not recommended) and M10-ANN welds better (poor vs not recommended).
M10-ANNChoose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.
M10 HT-NITChoose it when strength drives the design, or when the part sees heat.
M10-ANN vs M10 HT-NIT: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all 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 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
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Rockwell C
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 217 GPa31.5 Msi · Shear Modulus 84 GPa12.2 Msi · Bulk Modulus 165 GPa23.9 Msi · Poisson's Ratio 0.29 · Hardness, Brinell 235 HB · Hardness, Rockwell B 99 HRB
Physical
Density and transition temperatures.
Same in both: Density 7.88 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,290°C2,354 °F · Liquidus Temperature 1,430°C2,606 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Max Service Temperature (continuous)
Same in both: Specific Heat Capacity 420 J/kg·K0.1 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 10.4 µm/m·K5.8 µin/in·°F · Latent Heat of Fusion 250 J/g107 BTU/lb · Min Service Temperature -60°C-76 °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) -0.55 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Same in both: Castability 25 / 100 · Brazeability / Solderability 55 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 36 MJ/kg15,477 BTU/lb · Embodied Carbon (primary production) 2.9 kg CO₂/kg · Embodied Water 70 L/kg8.4 gal/lb · Typical Recycled Content 40%
Strength versus weight
Yield strength against density for every steel grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
M10-ANN vs M10 HT-NIT — frequently asked
Is M10 HT-NIT stronger than M10-ANN?
Yes. M10 HT-NIT has a typical yield strength of 1,950 MPa (283 ksi) against 550 MPa (79.8 ksi) for M10-ANN — about 3.5 times as much. Tensile strength is 2,150 MPa (312 ksi) vs 830 MPa (120 ksi).
Which condition does FabDigit quote by default, ANN or HT-NIT?
ANN is the default M10 condition in the FabDigit quote flow. 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, M10-ANN or M10 HT-NIT?
M10-ANN. Its machinability rates fair (42/100) against not recommended (5/100) for M10 HT-NIT; for welding the order is M10-ANN first (poor, 20/100) then M10 HT-NIT (not recommended, 5/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in M10-ANN and M10 HT-NIT 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.