Steel 18Ni(200) Maraging Steel Aged vs 18Ni(200) Maraging Steel-ANN
Steel · 18Ni(200) Maraging Steel temper comparison
18Ni(200) Maraging Steel Aged and 18Ni(200) Maraging Steel-ANN are two conditions of the same steel grade, 18Ni(200) Maraging Steel: Aged (solution annealed + 480 °C/3 h age) versus ANN (annealed). The chemistry is identical, so every difference below comes from the condition. 18Ni(200) Maraging Steel Aged is the stronger of the two: yield strength 1,400 MPa (203 ksi) against 830 MPa (120 ksi) for 18Ni(200) Maraging Steel-ANN, about 69% more; tensile strength follows at 1,450 MPa (210 ksi) vs 1,000 MPa (145 ksi). In exchange, 18Ni(200) Maraging Steel-ANN is the more ductile: elongation 18% versus 12% for 18Ni(200) Maraging Steel Aged, and 18Ni(200) Maraging Steel Aged is harder (400 HB vs 290 HB). 18Ni(200) Maraging Steel-ANN conducts heat better (25 W/m·K vs 20.5 W/m·K). On the shop floor, 18Ni(200) Maraging Steel-ANN machines more easily (fair vs poor) and 18Ni(200) Maraging Steel-ANN welds better (excellent vs very good).
18Ni(200) Maraging Steel AgedChoose it when strength drives the design.
18Ni(200) Maraging Steel-ANNChoose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.
18Ni(200) Maraging Steel Aged vs 18Ni(200) Maraging Steel-ANN: 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.
18Ni(200) Maraging Steel Aged18Ni(200) Maraging Steel-ANN
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
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell C
Hardness, Vickers
Same in both: Shear Modulus 71 GPa10.3 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.3 · Compressive Strength 1,420 MPa206 ksi · Fracture Toughness (K_IC) 155 MPa·√m141 ksi·√in
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.
Thermal Conductivity
Same in both: Specific Heat Capacity 452 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 10.1 µm/m·K5.6 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.
Electrical Resistivity
Same in both: Electrical Conductivity 3.8 % IACS
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.52 V · Corrosion Resistance 25 / 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: Castability 45 / 100 · Brazeability / Solderability 50 / 100 · Polishability 80 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 110 MJ/kg47,292 BTU/lb · Embodied Carbon (primary production) 7.5 kg CO₂/kg · Embodied Water 200 L/kg24 gal/lb · Typical Recycled Content 30%
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.
18Ni(200) Maraging Steel Aged vs 18Ni(200) Maraging Steel-ANN — frequently asked
Is 18Ni(200) Maraging Steel Aged stronger than 18Ni(200) Maraging Steel-ANN?
Yes. 18Ni(200) Maraging Steel Aged has a typical yield strength of 1,400 MPa (203 ksi) against 830 MPa (120 ksi) for 18Ni(200) Maraging Steel-ANN — about 69% more. Tensile strength is 1,450 MPa (210 ksi) vs 1,000 MPa (145 ksi).
Which condition does FabDigit quote by default, Aged or ANN?
Aged is the default 18Ni(200) Maraging Steel 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, 18Ni(200) Maraging Steel Aged or 18Ni(200) Maraging Steel-ANN?
18Ni(200) Maraging Steel-ANN. Its machinability rates fair (45/100) against poor (30/100) for 18Ni(200) Maraging Steel Aged; for welding the order is 18Ni(200) Maraging Steel-ANN first (excellent, 85/100) then 18Ni(200) Maraging Steel Aged (very good, 70/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 18Ni(200) Maraging Steel Aged and 18Ni(200) Maraging Steel-ANN 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.