Steel M52-ANN vs M52 ANN-CD
Steel · M52 temper comparison
M52-ANN and M52 ANN-CD are two conditions of the same steel grade, M52: ANN (annealed) versus ANN-CD (annealed, cold drawn / ground bar). The chemistry is identical, so every difference below comes from the condition. M52 ANN-CD is the stronger of the two: yield strength 650 MPa (94.3 ksi) against 520 MPa (75.4 ksi) for M52-ANN, about 25% more; tensile strength follows at 950 MPa (138 ksi) vs 860 MPa (125 ksi). In exchange, M52-ANN is the more ductile: elongation 15% versus 10% for M52 ANN-CD, and M52 ANN-CD is harder (265 HB vs 248 HB).
M52-ANNChoose it when the part is bent, formed or impact-loaded.
M52 ANN-CDChoose it when strength drives the design.
M52-ANN vs M52 ANN-CD: 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.
Elastic (Young's) Modulus
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, Brinell
Hardness, Rockwell B
Hardness, Rockwell C
Hardness, Vickers
Same in both: Shear Modulus 83 GPa12 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.28
Physical
Density and transition temperatures.
Same in both: Density 8.03 g/cm³0.29 lb/in³ · Melting Point (Solidus) 1,240°C2,264 °F · Liquidus Temperature 1,425°C2,597 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 24 W/m·K13.9 BTU/hr·ft·°F · Specific Heat Capacity 420 J/kg·K0.1 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.2 µm/m·K6.2 µin/in·°F · Latent Heat of Fusion 250 J/g107 BTU/lb · Max Service Temperature (continuous) 400°C752 °F · Min Service Temperature -60°C-76 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 3.1 % IACS · Electrical Resistivity 5.5×10⁻⁷ Ω·m21.7 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.55 V · Corrosion Resistance 20 / 100
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: Brazeability / Solderability 45 / 100 · Polishability 80 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 46 MJ/kg19,776 BTU/lb · Embodied Carbon (primary production) 3.3 kg CO₂/kg · Embodied Water 90 L/kg10.8 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.
M52-ANN vs M52 ANN-CD — frequently asked
Is M52 ANN-CD stronger than M52-ANN?
Yes. M52 ANN-CD has a typical yield strength of 650 MPa (94.3 ksi) against 520 MPa (75.4 ksi) for M52-ANN — about 25% more. Tensile strength is 950 MPa (138 ksi) vs 860 MPa (125 ksi).
Which condition does FabDigit quote by default, ANN or ANN-CD?
ANN is the default M52 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.
When should I choose M52-ANN over M52 ANN-CD?
Pick M52-ANN when the part is bent, formed or impact-loaded. Pick M52 ANN-CD when strength drives the design.
Ready to make it?
Upload a CAD file and FabDigit prices the part in M52-ANN and M52 ANN-CD 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.