Stainless Steel 1.4319 1/4H vs 1.4319 Annealed
Stainless Steel · 1.4319 temper comparison
1.4319 1/4H and 1.4319 Annealed are two conditions of the same stainless steel grade, 1.4319: 1/4H (quarter hard) versus Annealed. The chemistry is identical, so every difference below comes from the condition. 1.4319 1/4H is the stronger of the two: yield strength 600 MPa (87 ksi) against 290 MPa (42.1 ksi) for 1.4319 Annealed, about 107% more; tensile strength follows at 900 MPa (131 ksi) vs 700 MPa (102 ksi). In exchange, 1.4319 Annealed is the more ductile: elongation 55% versus 25% for 1.4319 1/4H, and 1.4319 1/4H is harder (280 HV vs 180 HV). 1.4319 Annealed runs hotter in service (800°C vs 300°C continuous).
1.4319 1/4HChoose it when strength drives the design.
1.4319 AnnealedChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
1.4319 1/4H vs 1.4319 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
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 195 GPa28.3 Msi · Shear Modulus 77 GPa11.2 Msi · Bulk Modulus 152 GPa22 Msi · Poisson's Ratio 0.3 · Reduction in Area 68% · Compressive Strength 290 MPa42.1 ksi · Shear Strength 450 MPa65.3 ksi · Fracture Toughness (K_IC) 150 MPa·√m137 ksi·√in · Hardness, Brinell 170 HB · Hardness, Rockwell B 88 HRB
Physical
Density and transition temperatures.
Same in both: Density 7.9 g/cm³0.29 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 15.5 W/m·K9 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 280 J/g120 BTU/lb · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 2.4 % IACS · Electrical Resistivity 7.3×10⁻⁷ Ω·m28.7 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.1 V · Corrosion Resistance 55 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability Rating (AISI 1212 = 100 %)
Formability (cold)
Same in both: Machinability 40 / 100 · Weldability 70 / 100 · Brazeability / Solderability 60 / 100 · Polishability 75 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 53 MJ/kg22,786 BTU/lb · Embodied Carbon (primary production) 5 kg CO₂/kg · Embodied Water 250 L/kg30 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.
1.4319 1/4H vs 1.4319 Annealed — frequently asked
Is 1.4319 1/4H stronger than 1.4319 Annealed?
Yes. 1.4319 1/4H has a typical yield strength of 600 MPa (87 ksi) against 290 MPa (42.1 ksi) for 1.4319 Annealed — about 107% more. Tensile strength is 900 MPa (131 ksi) vs 700 MPa (102 ksi).
Which condition does FabDigit quote by default, 1/4H or Annealed?
Annealed is the default 1.4319 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.
When should I choose 1.4319 1/4H over 1.4319 Annealed?
Pick 1.4319 1/4H when strength drives the design. Pick 1.4319 Annealed 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 1.4319 1/4H and 1.4319 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.