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Nickel Alloy Monel K500-AT vs Monel K500 Cold Drawn

Nickel Alloy · Monel K500 temper comparison

Monel K500-AT and Monel K500 Cold Drawn are two conditions of the same nickel alloy grade, Monel K500: AT (annealed and age hardened) versus Cold Drawn. The chemistry is identical, so every difference below comes from the condition. Monel K500-AT is the stronger of the two: yield strength 790 MPa (115 ksi) against 585 MPa (84.8 ksi) for Monel K500 Cold Drawn, about 35% more; tensile strength follows at 1,100 MPa (160 ksi) vs 800 MPa (116 ksi). Monel K500-AT is harder — 300 HB against 215 HB for Monel K500 Cold Drawn — which matters for wear surfaces and threads. On the shop floor, Monel K500-AT welds better (good vs fair) and Monel K500 Cold Drawn forms better (fair vs poor).

Monel K500-ATChoose it when strength drives the design, or when surface hardness matters.

Monel K500-AT vs Monel K500 Cold Drawn: properties

Monel K500-ATMonel K500 Cold Drawn

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

180 GPa26.1 Msi
177 GPa25.7 Msi

Bulk Modulus

167 GPa24.2 Msi
155 GPa22.5 Msi

Tensile Strength (Ultimate)

1,100 MPa160 ksi
800 MPa116 ksi

Yield Strength (0.2% offset)

790 MPa115 ksi
585 MPa84.8 ksi

Elongation at Break

20%
22%

Reduction in Area

40%
42%

Shear Strength

690 MPa100 ksi
505 MPa73.2 ksi

Fatigue Strength (Endurance Limit)

345 MPa50 ksi
285 MPa41.3 ksi

Charpy V-Notch Impact (RT)

40 J29.5 ft·lbf
135 J99.6 ft·lbf

Hardness, Brinell

300 HB
215 HB

Hardness, Rockwell B

75 HRB
96 HRB

Hardness, Rockwell C

30 HRC
20 HRC

Same in both: Shear Modulus 66 GPa9.6 Msi · Poisson's Ratio 0.32 · Fracture Toughness (K_IC) 110 MPa·√m100 ksi·√in

Physical

Density and transition temperatures.

Same in both: Density 8.44 g/cm³0.3 lb/in³ · Melting Point (Solidus) 1,315°C2,399 °F · Liquidus Temperature 1,350°C2,462 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

17.5 W/m·K10.1 BTU/hr·ft·°F
17.4 W/m·K10.1 BTU/hr·ft·°F

Min Service Temperature

-200°C-328 °F
-250°C-418 °F

Same in both: Specific Heat Capacity 419 J/kg·K0.1 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 13.7 µm/m·K7.6 µin/in·°F · Latent Heat of Fusion 290 J/g125 BTU/lb · Max Service Temperature (continuous) 480°C896 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

2.9 % IACS
2.8 % IACS

Electrical Resistivity

5.85×10⁻⁷ Ω·m23 µΩ·in
6.15×10⁻⁷ Ω·m24.2 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.1 V
-0.15 V

Corrosion Resistance

78 / 100
82 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

22 / 100
30 / 100

Machinability Rating (AISI 1212 = 100 %)

15%
25%

Weldability

55 / 100
40 / 100

Formability (cold)

20 / 100
40 / 100

Brazeability / Solderability

45 / 100
60 / 100

Polishability

70 / 100
75 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

150 MJ/kg64,488 BTU/lb
140 MJ/kg60,189 BTU/lb

Embodied Carbon (primary production)

12 kg CO₂/kg
10.5 kg CO₂/kg

Same in both: Embodied Water 300 L/kg35.9 gal/lb · Typical Recycled Content 30%

Strength versus weight

Yield strength against density for every nickel alloy grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

2005001,0006.577.588.59Density (g/cm³)Yield strength (MPa) — log scaleMonel K500

Monel K500-AT vs Monel K500 Cold Drawn — frequently asked

Is Monel K500-AT stronger than Monel K500 Cold Drawn?

Yes. Monel K500-AT has a typical yield strength of 790 MPa (115 ksi) against 585 MPa (84.8 ksi) for Monel K500 Cold Drawn — about 35% more. Tensile strength is 1,100 MPa (160 ksi) vs 800 MPa (116 ksi).

Which condition does FabDigit quote by default, AT or Cold Drawn?

O is the default Monel K500 condition in the FabDigit quote flow (neither AT nor Cold Drawn). 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, Monel K500-AT or Monel K500 Cold Drawn?

Monel K500 Cold Drawn, by a small margin. Both rate poor for machinability — 30/100 against 22/100 for Monel K500-AT; for welding the order is Monel K500-AT first (good, 55/100) then Monel K500 Cold Drawn (fair, 40/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in Monel K500-AT and Monel K500 Cold Drawn 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.