Stainless Steel SUS316J1L 1/2H vs SUS316J1L 3/4H
Stainless Steel · SUS316J1L temper comparison
SUS316J1L 1/2H and SUS316J1L 3/4H are two conditions of the same stainless steel grade, SUS316J1L: 1/2H (half hard) versus 3/4H (three-quarter hard). The chemistry is identical, so every difference below comes from the condition. SUS316J1L 3/4H is the stronger of the two: yield strength 680 MPa (98.6 ksi) against 520 MPa (75.4 ksi) for SUS316J1L 1/2H, about 31% more; tensile strength follows at 900 MPa (131 ksi) vs 780 MPa (113 ksi). In exchange, SUS316J1L 1/2H is the more ductile: elongation 18% versus 12% for SUS316J1L 3/4H, and SUS316J1L 3/4H is harder (285 HB vs 245 HB). SUS316J1L 1/2H runs hotter in service (350°C vs 300°C continuous).
SUS316J1L 1/2HChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
SUS316J1L 3/4HChoose it when strength drives the design.
SUS316J1L 1/2H vs SUS316J1L 3/4H: 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.
Elastic (Young's) Modulus
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: Shear Modulus 77 GPa11.2 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) 1,375°C2,507 °F · Liquidus Temperature 1,400°C2,552 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 15 W/m·K8.7 BTU/hr·ft·°F · Specific Heat Capacity 500 J/kg·K0.12 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 16 µm/m·K8.9 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 2.3 % IACS · Electrical Resistivity 7.5×10⁻⁷ Ω·m29.5 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.08 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 40 / 100 · Brazeability / Solderability 65 / 100 · Polishability 80 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 55 MJ/kg23,646 BTU/lb · Embodied Carbon (primary production) 5.5 kg CO₂/kg · Embodied Water 110 L/kg13.2 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.
SUS316J1L 1/2H vs SUS316J1L 3/4H — frequently asked
Is SUS316J1L 3/4H stronger than SUS316J1L 1/2H?
Yes. SUS316J1L 3/4H has a typical yield strength of 680 MPa (98.6 ksi) against 520 MPa (75.4 ksi) for SUS316J1L 1/2H — about 31% more. Tensile strength is 900 MPa (131 ksi) vs 780 MPa (113 ksi).
Which condition does FabDigit quote by default, 1/2H or 3/4H?
Annealed is the default SUS316J1L condition in the FabDigit quote flow (neither 1/2H nor 3/4H). 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, SUS316J1L 1/2H or SUS316J1L 3/4H?
SUS316J1L 1/2H. Its weldability rates very good (80/100) against very good (75/100) for SUS316J1L 3/4H.
Ready to make it?
Upload a CAD file and FabDigit prices the part in SUS316J1L 1/2H and SUS316J1L 3/4H 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.