Stainless Steel 1.4547-CD vs 1.4547 FORG-SA
Stainless Steel · 1.4547 temper comparison
1.4547-CD and 1.4547 FORG-SA are two conditions of the same stainless steel grade, 1.4547: CD (cold drawn) versus FORG-SA (forged + solution annealed). The chemistry is identical, so every difference below comes from the condition. 1.4547-CD is the stronger of the two: yield strength 550 MPa (79.8 ksi) against 340 MPa (49.3 ksi) for 1.4547 FORG-SA, about 62% more; tensile strength follows at 800 MPa (116 ksi) vs 690 MPa (100 ksi). In exchange, 1.4547 FORG-SA is the more ductile: elongation 40% versus 30% for 1.4547-CD, and 1.4547-CD is harder (260 HB vs 215 HB).
1.4547-CDChoose it when strength drives the design.
1.4547 FORG-SAChoose it when the part is bent, formed or impact-loaded.
1.4547-CD vs 1.4547 FORG-SA: 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, Rockwell C
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 195 GPa28.3 Msi · Shear Modulus 75 GPa10.9 Msi · Bulk Modulus 162 GPa23.5 Msi · Poisson's Ratio 0.3
Physical
Density and transition temperatures.
Same in both: Density 8 g/cm³0.29 lb/in³ · Melting Point (Solidus) 1,325°C2,417 °F · Liquidus Temperature 1,390°C2,534 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 14 W/m·K8.1 BTU/hr·ft·°F · Specific Heat Capacity 500 J/kg·K0.12 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 16.5 µm/m·K9.2 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Max Service Temperature (continuous) 400°C752 °F · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 2 % IACS · Electrical Resistivity 8.5×10⁻⁷ Ω·m33.5 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) 0.15 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 55 / 100 · Polishability 72 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 80 MJ/kg34,394 BTU/lb · Embodied Carbon (primary production) 5.5 kg CO₂/kg · Embodied Water 120 L/kg14.4 gal/lb · Typical Recycled Content 50%
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.
1.4547-CD vs 1.4547 FORG-SA — frequently asked
Is 1.4547-CD stronger than 1.4547 FORG-SA?
Yes. 1.4547-CD has a typical yield strength of 550 MPa (79.8 ksi) against 340 MPa (49.3 ksi) for 1.4547 FORG-SA — about 62% more. Tensile strength is 800 MPa (116 ksi) vs 690 MPa (100 ksi).
Which condition does FabDigit quote by default, CD or FORG-SA?
SA is the default 1.4547 condition in the FabDigit quote flow (neither CD nor FORG-SA). 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, 1.4547-CD or 1.4547 FORG-SA?
1.4547 FORG-SA. Its weldability rates very good (75/100) against very good (70/100) for 1.4547-CD.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 1.4547-CD and 1.4547 FORG-SA 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.