Stainless Steel S40930 Annealed vs S40930-TR
Stainless Steel · S40930 temper comparison
S40930 Annealed and S40930-TR are two conditions of the same stainless steel grade, S40930: Annealed versus TR (temper Rolled). The chemistry is identical, so every difference below comes from the condition. S40930-TR is the stronger of the two: yield strength 310 MPa (45 ksi) against 250 MPa (36.3 ksi) for S40930 Annealed, about 24% more; tensile strength follows at 470 MPa (68.2 ksi) vs 440 MPa (63.8 ksi). In exchange, S40930 Annealed is the more ductile: elongation 32% versus 25% for S40930-TR, and S40930-TR is harder (163 HB vs 145 HB).
S40930 AnnealedChoose it when the part is bent, formed or impact-loaded.
S40930-TRChoose it when strength drives the design.
S40930 Annealed vs S40930-TR: 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
Shear Strength
Fatigue Strength (Endurance Limit)
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 7.75 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,450°C2,642 °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 25 W/m·K14.4 BTU/hr·ft·°F · Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.7 µm/m·K6.5 µin/in·°F · Latent Heat of Fusion 260 J/g112 BTU/lb · Max Service Temperature (continuous) 675°C1,247 °F · Min Service Temperature -20°C-4 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 2.9 % IACS · Electrical Resistivity 6×10⁻⁷ Ω·m23.6 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.35 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Formability (cold)
Same in both: Weldability 85 / 100 · Brazeability / Solderability 60 / 100 · Polishability 50 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 45 MJ/kg19,347 BTU/lb · Embodied Carbon (primary production) 3.4 kg CO₂/kg · Embodied Water 220 L/kg26.4 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.
S40930 Annealed vs S40930-TR — frequently asked
Is S40930-TR stronger than S40930 Annealed?
Yes. S40930-TR has a typical yield strength of 310 MPa (45 ksi) against 250 MPa (36.3 ksi) for S40930 Annealed — about 24% more. Tensile strength is 470 MPa (68.2 ksi) vs 440 MPa (63.8 ksi).
Which condition does FabDigit quote by default, Annealed or TR?
Annealed is the default S40930 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 S40930 Annealed over S40930-TR?
Pick S40930 Annealed when the part is bent, formed or impact-loaded. Pick S40930-TR when strength drives the design.
Ready to make it?
Upload a CAD file and FabDigit prices the part in S40930 Annealed and S40930-TR 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.