Nickel Alloy Inconel 625 Cold Drawn vs Inconel 625 Stress Relieved
Nickel Alloy · Inconel 625 temper comparison
Inconel 625 Cold Drawn and Inconel 625 Stress Relieved are two conditions of the same nickel alloy grade, Inconel 625: Cold Drawn versus Stress Relieved. The chemistry is identical, so every difference below comes from the condition. Inconel 625 Cold Drawn is the stronger of the two: yield strength 900 MPa (131 ksi) against 680 MPa (98.6 ksi) for Inconel 625 Stress Relieved, about 32% more; tensile strength follows at 1,100 MPa (160 ksi) vs 960 MPa (139 ksi). In exchange, Inconel 625 Stress Relieved is the more ductile: elongation 35% versus 20% for Inconel 625 Cold Drawn, and Inconel 625 Cold Drawn is harder (300 HB vs 285 HB). Inconel 625 Stress Relieved runs hotter in service (650°C vs 480°C continuous).
Inconel 625 Cold DrawnChoose it when strength drives the design.
Inconel 625 Stress RelievedChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
Inconel 625 Cold Drawn vs Inconel 625 Stress Relieved: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all nickel alloy 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 nickel alloy 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.
Inconel 625 Cold DrawnInconel 625 Stress Relieved
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, Vickers
Same in both: Shear Modulus 79 GPa11.5 Msi · Bulk Modulus 155 GPa22.5 Msi · Poisson's Ratio 0.28 · Hardness, Rockwell B 92 HRB
Physical
Density and transition temperatures.
Same in both: Density 8.44 g/cm³0.3 lb/in³ · Melting Point (Solidus) 1,290°C2,354 °F · Liquidus Temperature 1,350°C2,462 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 9.8 W/m·K5.7 BTU/hr·ft·°F · Specific Heat Capacity 410 J/kg·K0.1 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12.8 µm/m·K7.1 µin/in·°F · Latent Heat of Fusion 290 J/g125 BTU/lb · Min Service Temperature -253°C-423 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 1.3 % IACS · Electrical Resistivity 1.29×10⁻⁶ Ω·m50.8 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.1 V
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 65 / 100 · Polishability 72 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 225 MJ/kg96,733 BTU/lb · Embodied Carbon (primary production) 14 kg CO₂/kg · Embodied Water 300 L/kg35.9 gal/lb · Typical Recycled Content 35%
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.
Inconel 625 Cold Drawn vs Inconel 625 Stress Relieved — frequently asked
Is Inconel 625 Cold Drawn stronger than Inconel 625 Stress Relieved?
Yes. Inconel 625 Cold Drawn has a typical yield strength of 900 MPa (131 ksi) against 680 MPa (98.6 ksi) for Inconel 625 Stress Relieved — about 32% more. Tensile strength is 1,100 MPa (160 ksi) vs 960 MPa (139 ksi).
Which condition does FabDigit quote by default, Cold Drawn or Stress Relieved?
O is the default Inconel 625 condition in the FabDigit quote flow (neither Cold Drawn nor Stress Relieved). 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, Inconel 625 Cold Drawn or Inconel 625 Stress Relieved?
Inconel 625 Cold Drawn, by a small margin. Both rate poor for machinability — 22/100 against 16/100 for Inconel 625 Stress Relieved; for welding the order is Inconel 625 Stress Relieved first (excellent, 85/100) then Inconel 625 Cold Drawn (very good, 80/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in Inconel 625 Cold Drawn and Inconel 625 Stress Relieved 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.