Stainless Steel S35115 1/4H vs S35115 Annealed
Stainless Steel · S35115 temper comparison
S35115 1/4H and S35115 Annealed are two conditions of the same stainless steel grade, S35115: 1/4H (quarter hard) versus Annealed. The chemistry is identical, so every difference below comes from the condition. S35115 1/4H is the stronger of the two: yield strength 520 MPa (75.4 ksi) against 265 MPa (38.4 ksi) for S35115 Annealed, about 96% more; tensile strength follows at 780 MPa (113 ksi) vs 600 MPa (87 ksi). In exchange, S35115 Annealed is the more ductile: elongation 45% versus 20% for S35115 1/4H, and S35115 1/4H is harder (235 HB vs 165 HB). S35115 Annealed runs hotter in service (500°C vs 400°C continuous). On the shop floor, S35115 Annealed welds better (very good vs good).
S35115 1/4HChoose it when strength drives the design.
S35115 AnnealedChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
S35115 1/4H vs S35115 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 195 GPa28.3 Msi · Shear Modulus 75 GPa10.9 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.3
Physical
Density and transition temperatures.
Same in both: Density 8 g/cm³0.29 lb/in³ · Melting Point (Solidus) 1,340°C2,444 °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 12 W/m·K6.9 BTU/hr·ft·°F · Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 15 µm/m·K8.3 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).
Corrosion Resistance
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 75 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 65 MJ/kg27,945 BTU/lb · Embodied Carbon (primary production) 5.5 kg CO₂/kg · Embodied Water 180 L/kg21.6 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.
S35115 1/4H vs S35115 Annealed — frequently asked
Is S35115 1/4H stronger than S35115 Annealed?
Yes. S35115 1/4H has a typical yield strength of 520 MPa (75.4 ksi) against 265 MPa (38.4 ksi) for S35115 Annealed — about 96% more. Tensile strength is 780 MPa (113 ksi) vs 600 MPa (87 ksi).
Which condition does FabDigit quote by default, 1/4H or Annealed?
Annealed is the default S35115 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.
Which welds better, S35115 1/4H or S35115 Annealed?
S35115 Annealed. Its weldability rates very good (70/100) against good (60/100) for S35115 1/4H.
Ready to make it?
Upload a CAD file and FabDigit prices the part in S35115 1/4H and S35115 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.