Steel Maraging 300 Annealed vs Maraging 300 As Printed
Steel · Maraging 300 temper comparison
Maraging 300 Annealed and Maraging 300 As Printed are two conditions of the same steel grade, Maraging 300: Annealed versus As Printed (as built (as printed)). The chemistry is identical, so every difference below comes from the condition. Both yield at about 800 MPa — the mechanical properties are the same, and the difference is in how the stock is processed and what it is certified to (Annealed versus as built (as printed)). For most parts the choice follows the drawing's specified condition; ask for the one your standard calls out.
Maraging 300 Annealed vs Maraging 300 As Printed: 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.
Maraging 300 AnnealedMaraging 300 As Printed
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Same in both: Elastic (Young's) Modulus 180 GPa26.1 Msi · Shear Modulus 70 GPa10.2 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.3 · Tensile Strength (Ultimate) 1,010 MPa146 ksi · Yield Strength (0.2% offset) 800 MPa116 ksi · Elongation at Break 17% · Reduction in Area 72% · Compressive Strength 830 MPa120 ksi · Shear Strength 620 MPa89.9 ksi · Fatigue Strength (Endurance Limit) 450 MPa65.3 ksi · Charpy V-Notch Impact (RT) 100 J73.8 ft·lbf · Hardness, Brinell 300 HB · Hardness, Rockwell C 30 HRC · Hardness, Vickers 315 HV
Physical
Density and transition temperatures.
Same in both: Density 8 g/cm³0.29 lb/in³ · Melting Point (Solidus) 1,413°C2,575 °F · Liquidus Temperature 1,450°C2,642 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 20 W/m·K11.6 BTU/hr·ft·°F · Specific Heat Capacity 450 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 10.3 µm/m·K5.7 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Max Service Temperature (continuous) 400°C752 °F · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 2.9 % IACS · Electrical Resistivity 6×10⁻⁷ Ω·m23.6 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.58 V · Corrosion Resistance 25 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Same in both: Machinability 45 / 100 · Machinability Rating (AISI 1212 = 100 %) 50% · Weldability 80 / 100 · Formability (cold) 55 / 100 · Castability 40 / 100 · Brazeability / Solderability 45 / 100 · Polishability 85 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 100 MJ/kg42,992 BTU/lb · Embodied Carbon (primary production) 6.5 kg CO₂/kg · Embodied Water 250 L/kg30 gal/lb · Typical Recycled Content 20%
Common Calculations
Ratios derived from the values above.
Same in both: Specific Strength (UTS / density) 126 kN·m/kg · Specific Stiffness (E / density) 22.5 MN·m/kg · Modulus of Resilience 1,778 kJ/m³ · Thermal Diffusivity 5.6 mm²/s · Thermal Shock Resistance Index 11
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.
Maraging 300 Annealed vs Maraging 300 As Printed — frequently asked
What is the difference between Maraging 300 Annealed and Maraging 300 As Printed?
Maraging 300 Annealed and Maraging 300 As Printed are two conditions of the same steel grade, Maraging 300: Annealed versus As Printed (as built (as printed)). The chemistry is identical, so every difference below comes from the condition. Both yield at about 800 MPa — the mechanical properties are the same, and the difference is in how the stock is processed and what it is certified to (Annealed versus as built (as printed)).
Which condition does FabDigit quote by default, Annealed or As Printed?
Annealed is the default Maraging 300 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.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Maraging 300 Annealed and Maraging 300 As Printed 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.