Stainless Steel 1.4424-CD vs 1.4424 SA-HR
Stainless Steel · 1.4424 temper comparison
1.4424-CD and 1.4424 SA-HR are two conditions of the same stainless steel grade, 1.4424: CD (cold drawn) versus SA-HR (solution annealed, hot rolled). The chemistry is identical, so every difference below comes from the condition. 1.4424-CD is the stronger of the two: yield strength 650 MPa (94.3 ksi) against 465 MPa (67.4 ksi) for 1.4424 SA-HR, about 40% more; tensile strength follows at 820 MPa (119 ksi) vs 690 MPa (100 ksi). In exchange, 1.4424 SA-HR is the more ductile: elongation 32% versus 20% for 1.4424-CD, and 1.4424-CD is harder (275 HB vs 220 HB). 1.4424 SA-HR runs hotter in service (280°C vs 250°C continuous).
1.4424-CDChoose it when strength drives the design.
1.4424 SA-HRChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
1.4424-CD vs 1.4424 SA-HR: 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
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell C
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 0.3 · Compressive Strength 500 MPa72.5 ksi · Shear Strength 450 MPa65.3 ksi · Fracture Toughness (K_IC) 130 MPa·√m118 ksi·√in · Hardness, Rockwell B 98 HRB
Physical
Density and transition temperatures.
Same in both: Density 7.75 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,400°C2,552 °F · Liquidus Temperature 1,450°C2,642 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 16 W/m·K9.2 BTU/hr·ft·°F · Specific Heat Capacity 480 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 13 µm/m·K7.2 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Min Service Temperature -50°C-58 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 2.2 % IACS · Electrical Resistivity 8×10⁻⁷ Ω·m31.5 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: Castability 45 / 100 · Brazeability / Solderability 40 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 52 MJ/kg22,356 BTU/lb · Embodied Carbon (primary production) 4.2 kg CO₂/kg · Embodied Water 140 L/kg16.8 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.
1.4424-CD vs 1.4424 SA-HR — frequently asked
Is 1.4424-CD stronger than 1.4424 SA-HR?
Yes. 1.4424-CD has a typical yield strength of 650 MPa (94.3 ksi) against 465 MPa (67.4 ksi) for 1.4424 SA-HR — about 40% more. Tensile strength is 820 MPa (119 ksi) vs 690 MPa (100 ksi).
Which condition does FabDigit quote by default, CD or SA-HR?
SA-CR is the default 1.4424 condition in the FabDigit quote flow (neither CD nor SA-HR). 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, 1.4424-CD or 1.4424 SA-HR?
1.4424 SA-HR. Its weldability rates very good (70/100) against good (65/100) for 1.4424-CD.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 1.4424-CD and 1.4424 SA-HR 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.