Stainless Steel 27-7Mo Annealed vs 27-7Mo Cold Drawn
Stainless Steel · 27-7Mo temper comparison
27-7Mo Annealed and 27-7Mo Cold Drawn are two conditions of the same stainless steel grade, 27-7Mo: Annealed versus Cold Drawn. The chemistry is identical, so every difference below comes from the condition. 27-7Mo Cold Drawn is the stronger of the two: yield strength 730 MPa (106 ksi) against 405 MPa (58.7 ksi) for 27-7Mo Annealed, about 80% more; tensile strength follows at 950 MPa (138 ksi) vs 800 MPa (116 ksi). In exchange, 27-7Mo Annealed is the more ductile: elongation 50% versus 25% for 27-7Mo Cold Drawn, and 27-7Mo Cold Drawn is harder (290 HB vs 200 HB). 27-7Mo Annealed runs hotter in service (400°C vs 300°C continuous).
27-7Mo AnnealedChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
27-7Mo Cold DrawnChoose it when strength drives the design.
27-7Mo Annealed vs 27-7Mo Cold Drawn: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all stainless 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 stainless 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.
27-7Mo Annealed27-7Mo Cold Drawn
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Same in both: Elastic (Young's) Modulus 195 GPa28.3 Msi · Shear Modulus 75 GPa10.9 Msi · Bulk Modulus 163 GPa23.6 Msi · Poisson's Ratio 0.3 · Hardness, Rockwell B 92 HRB
Physical
Density and transition temperatures.
Same in both: Density 8 g/cm³0.29 lb/in³ · Melting Point (Solidus) 1,320°C2,408 °F · Liquidus Temperature 1,390°C2,534 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 11.5 W/m·K6.6 BTU/hr·ft·°F · Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 14.5 µm/m·K8.1 µin/in·°F · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 1.7 % IACS · Electrical Resistivity 1×10⁻⁶ Ω·m39.4 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: Brazeability / Solderability 45 / 100 · Polishability 75 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 85 MJ/kg36,543 BTU/lb · Embodied Carbon (primary production) 6.8 kg CO₂/kg · Embodied Water 110 L/kg13.2 gal/lb · Typical Recycled Content 40%
Strength versus weight
Yield strength against density for every stainless steel grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
27-7Mo Annealed vs 27-7Mo Cold Drawn — frequently asked
Is 27-7Mo Cold Drawn stronger than 27-7Mo Annealed?
Yes. 27-7Mo Cold Drawn has a typical yield strength of 730 MPa (106 ksi) against 405 MPa (58.7 ksi) for 27-7Mo Annealed — about 80% more. Tensile strength is 950 MPa (138 ksi) vs 800 MPa (116 ksi).
Which condition does FabDigit quote by default, Annealed or Cold Drawn?
Annealed is the default 27-7Mo 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 welds better, 27-7Mo Annealed or 27-7Mo Cold Drawn?
27-7Mo Annealed. Its weldability rates good (65/100) against good (60/100) for 27-7Mo Cold Drawn.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 27-7Mo Annealed and 27-7Mo 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.