Stainless Steel 1.4749-CD vs 1.4749 CR-Annealed
Stainless Steel · 1.4749 temper comparison
1.4749-CD and 1.4749 CR-Annealed are two conditions of the same stainless steel grade, 1.4749: CD (cold drawn) versus CR-Annealed (cold Rolled + Annealed sheet/strip). The chemistry is identical, so every difference below comes from the condition. 1.4749-CD is the stronger of the two: yield strength 500 MPa (72.5 ksi) against 320 MPa (46.4 ksi) for 1.4749 CR-Annealed, about 56% more; tensile strength follows at 660 MPa (95.7 ksi) vs 540 MPa (78.3 ksi). In exchange, 1.4749 CR-Annealed is the more ductile: elongation 25% versus 14% for 1.4749-CD, and 1.4749-CD is harder (210 HB vs 165 HB).
1.4749-CDChoose it when strength drives the design.
1.4749 CR-AnnealedChoose it when the part is bent, formed or impact-loaded.
1.4749-CD vs 1.4749 CR-Annealed: 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)
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, Rockwell B
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 200 GPa29 Msi · Shear Modulus 77 GPa11.2 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29
Physical
Density and transition temperatures.
Same in both: Density 7.6 g/cm³0.27 lb/in³ · Melting Point (Solidus) 1,425°C2,597 °F · Liquidus Temperature 1,510°C2,750 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 20 W/m·K11.6 BTU/hr·ft·°F · Specific Heat Capacity 500 J/kg·K0.12 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 10.4 µm/m·K5.8 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Max Service Temperature (continuous) 1,100°C2,012 °F · Min Service Temperature 0°C32 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 2.6 % IACS · Electrical Resistivity 6.7×10⁻⁷ Ω·m26.4 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.2 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 50 / 100 · Polishability 60 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 48 MJ/kg20,636 BTU/lb · Embodied Carbon (primary production) 3.6 kg CO₂/kg · Embodied Water 150 L/kg18 gal/lb · Typical Recycled Content 65%
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.
1.4749-CD vs 1.4749 CR-Annealed — frequently asked
Is 1.4749-CD stronger than 1.4749 CR-Annealed?
Yes. 1.4749-CD has a typical yield strength of 500 MPa (72.5 ksi) against 320 MPa (46.4 ksi) for 1.4749 CR-Annealed — about 56% more. Tensile strength is 660 MPa (95.7 ksi) vs 540 MPa (78.3 ksi).
Which condition does FabDigit quote by default, CD or CR-Annealed?
Annealed is the default 1.4749 condition in the FabDigit quote flow (neither CD nor CR-Annealed). 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, 1.4749-CD or 1.4749 CR-Annealed?
1.4749-CD, by a small margin. Both rate fair for machinability — 46/100 against 40/100 for 1.4749 CR-Annealed; for welding the order is 1.4749 CR-Annealed first (poor, 30/100) then 1.4749-CD (poor, 25/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 1.4749-CD and 1.4749 CR-Annealed 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.