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Steel 18Ni(200) Maraging Steel-ANN vs 18Ni(200) Maraging Steel ANN-CD

Steel · 18Ni(200) Maraging Steel temper comparison

18Ni(200) Maraging Steel-ANN and 18Ni(200) Maraging Steel ANN-CD are two conditions of the same steel grade, 18Ni(200) Maraging Steel: ANN (annealed) versus ANN-CD (annealed + cold drawn bar). The chemistry is identical, so every difference below comes from the condition. 18Ni(200) Maraging Steel ANN-CD is the stronger of the two: yield strength 980 MPa (142 ksi) against 830 MPa (120 ksi) for 18Ni(200) Maraging Steel-ANN, about 18% more; tensile strength follows at 1,120 MPa (162 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 ANN-CD, and 18Ni(200) Maraging Steel ANN-CD is harder (320 HB vs 290 HB). 18Ni(200) Maraging Steel-ANN conducts heat better (25 W/m·K vs 19.5 W/m·K).

18Ni(200) Maraging Steel-ANNChoose it when the part is bent, formed or impact-loaded.

18Ni(200) Maraging Steel ANN-CDChoose it when strength drives the design.

18Ni(200) Maraging Steel-ANN vs 18Ni(200) Maraging Steel ANN-CD: properties

18Ni(200) Maraging Steel-ANN18Ni(200) Maraging Steel ANN-CD

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

179 GPa26 Msi
183 GPa26.5 Msi

Tensile Strength (Ultimate)

1,000 MPa145 ksi
1,120 MPa162 ksi

Yield Strength (0.2% offset)

830 MPa120 ksi
980 MPa142 ksi

Elongation at Break

18%
12%

Reduction in Area

72%
60%

Compressive Strength

1,420 MPa206 ksi
1,000 MPa145 ksi

Shear Strength

620 MPa89.9 ksi
670 MPa97.2 ksi

Fatigue Strength (Endurance Limit)

430 MPa62.4 ksi
470 MPa68.2 ksi

Fracture Toughness (K_IC)

155 MPa·√m141 ksi·√in
200 MPa·√m182 ksi·√in

Charpy V-Notch Impact (RT)

130 J95.9 ft·lbf
150 J111 ft·lbf

Hardness, Brinell

290 HB
320 HB

Hardness, Rockwell C

30 HRC
34 HRC

Hardness, Vickers

300 HV
335 HV

Same in both: Shear Modulus 71 GPa10.3 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.3

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

25 W/m·K14.4 BTU/hr·ft·°F
19.5 W/m·K11.3 BTU/hr·ft·°F

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 Conductivity

3.8 % IACS
3.4 % IACS

Electrical Resistivity

6×10⁻⁷ Ω·m23.6 µΩ·in
5×10⁻⁷ Ω·m19.7 µΩ·in

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

45 / 100
40 / 100

Machinability Rating (AISI 1212 = 100 %)

50%
40%

Weldability

85 / 100
80 / 100

Formability (cold)

60 / 100
40 / 100

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.

2005001,0002,0007.588.5Density (g/cm³)Yield strength (MPa) — log scale18Ni(200) Maraging Steel

18Ni(200) Maraging Steel-ANN vs 18Ni(200) Maraging Steel ANN-CD — frequently asked

Is 18Ni(200) Maraging Steel ANN-CD stronger than 18Ni(200) Maraging Steel-ANN?

Yes. 18Ni(200) Maraging Steel ANN-CD has a typical yield strength of 980 MPa (142 ksi) against 830 MPa (120 ksi) for 18Ni(200) Maraging Steel-ANN — about 18% more. Tensile strength is 1,120 MPa (162 ksi) vs 1,000 MPa (145 ksi).

Which condition does FabDigit quote by default, ANN or ANN-CD?

Aged is the default 18Ni(200) Maraging Steel condition in the FabDigit quote flow (neither ANN nor ANN-CD). 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-ANN or 18Ni(200) Maraging Steel ANN-CD?

18Ni(200) Maraging Steel-ANN, by a small margin. Both rate fair for machinability — 45/100 against 40/100 for 18Ni(200) Maraging Steel ANN-CD; for welding the order is 18Ni(200) Maraging Steel-ANN first (excellent, 85/100) then 18Ni(200) Maraging Steel ANN-CD (very good, 80/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 18Ni(200) Maraging Steel-ANN and 18Ni(200) Maraging Steel 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.