Stainless Steel 347H Annealed vs 347H Solution Annealed
Stainless Steel · 347H temper comparison
347H Annealed and 347H Solution Annealed are two conditions of the same stainless steel grade, 347H: Annealed versus Solution Annealed. The chemistry is identical, so every difference below comes from the condition. 347H Solution Annealed is the stronger of the two: yield strength 275 MPa (39.9 ksi) against 255 MPa (37 ksi) for 347H Annealed, about 8% more. In exchange, 347H Annealed is the more ductile: elongation 50% versus 45% for 347H Solution Annealed, and 347H Solution Annealed is harder (160 HB vs 150 HB).
347H AnnealedChoose it when the part is bent, formed or impact-loaded.
347H Solution AnnealedChoose it when strength drives the design.
347H Annealed vs 347H Solution 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.
347H Annealed347H Solution Annealed
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)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Same in both: Elastic (Young's) Modulus 195 GPa28.3 Msi · Shear Modulus 77 GPa11.2 Msi · Bulk Modulus 158 GPa22.9 Msi · Poisson's Ratio 0.3 · Fracture Toughness (K_IC) 200 MPa·√m182 ksi·√in
Physical
Density and transition temperatures.
Same in both: Density 7.96 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.
Same in both: Thermal Conductivity 16.1 W/m·K9.3 BTU/hr·ft·°F · Specific Heat Capacity 500 J/kg·K0.12 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 16.6 µm/m·K9.2 µin/in·°F · Latent Heat of Fusion 285 J/g123 BTU/lb · Max Service Temperature (continuous) 815°C1,499 °F · 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 57 / 100
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 65 / 100 · Polishability 75 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 60 MJ/kg25,795 BTU/lb · Embodied Carbon (primary production) 5.3 kg CO₂/kg · Embodied Water 165 L/kg19.8 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.
347H Annealed vs 347H Solution Annealed — frequently asked
Is 347H Solution Annealed stronger than 347H Annealed?
Yes. 347H Solution Annealed has a typical yield strength of 275 MPa (39.9 ksi) against 255 MPa (37 ksi) for 347H Annealed — about 8% more. Tensile strength is 620 MPa (89.9 ksi) vs 600 MPa (87 ksi).
Which condition does FabDigit quote by default, Annealed or Solution Annealed?
Solution Annealed is the default 347H 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 347H Annealed over 347H Solution Annealed?
Pick 347H Annealed when the part is bent, formed or impact-loaded. Pick 347H Solution Annealed when strength drives the design.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 347H Annealed and 347H Solution 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.