Stainless Steel 1.4539-C700 vs 1.4539-CD
Stainless Steel · 1.4539 temper comparison
1.4539-C700 and 1.4539-CD are two conditions of the same stainless steel grade, 1.4539: C700 (cold worked to Rm ≥ 700 MPa) versus CD (cold drawn). The chemistry is identical, so every difference below comes from the condition. 1.4539-C700 is the stronger of the two: tensile strength 760 MPa (110 ksi) against 720 MPa (104 ksi) for 1.4539-CD, about 6% more. In exchange, 1.4539-CD is the more ductile: elongation 28% versus 25% for 1.4539-C700. 1.4539-CD runs hotter in service (350°C vs 300°C continuous).
1.4539-C700Choose it when strength drives the design.
1.4539-CDChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
1.4539-C700 vs 1.4539-CD: 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.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Tensile Strength (Ultimate)
Elongation at Break
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
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 · Yield Strength (0.2% offset) 480 MPa69.6 ksi · Fracture Toughness (K_IC) 150 MPa·√m137 ksi·√in
Physical
Density and transition temperatures.
Same in both: Density 7.95 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 450 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 15.8 µm/m·K8.8 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · 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).
Same in both: Galvanic Potential (seawater, vs SCE) -0.05 V · Corrosion Resistance 76 / 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: Brazeability / Solderability 55 / 100 · Polishability 80 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 88 MJ/kg37,833 BTU/lb · Embodied Carbon (primary production) 6.5 kg CO₂/kg · Embodied Water 220 L/kg26.4 gal/lb · Typical Recycled Content 60%
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.
1.4539-C700 vs 1.4539-CD — frequently asked
Is 1.4539-C700 stronger than 1.4539-CD?
Yes. 1.4539-C700 has a typical tensile strength of 760 MPa (110 ksi) against 720 MPa (104 ksi) for 1.4539-CD — about 6% more.
Which condition does FabDigit quote by default, C700 or CD?
AT is the default 1.4539 condition in the FabDigit quote flow (neither C700 nor 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.
When should I choose 1.4539-C700 over 1.4539-CD?
Pick 1.4539-C700 when strength drives the design. Pick 1.4539-CD when the part is bent, formed or impact-loaded, or when the part sees heat.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 1.4539-C700 and 1.4539-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.