Steel 17CrNiMo6 Annealed vs 17CrNiMo6 +S
Steel · 17CrNiMo6 temper comparison
17CrNiMo6 Annealed and 17CrNiMo6 +S are two conditions of the same steel grade, 17CrNiMo6: Annealed versus +S (treated for shearability). The chemistry is identical, so every difference below comes from the condition. 17CrNiMo6 +S is the stronger of the two: yield strength 480 MPa (69.6 ksi) against 430 MPa (62.4 ksi) for 17CrNiMo6 Annealed, about 12% more; tensile strength follows at 780 MPa (113 ksi) vs 700 MPa (102 ksi). In exchange, 17CrNiMo6 Annealed is the more ductile: elongation 20% versus 16% for 17CrNiMo6 +S, and 17CrNiMo6 +S is harder (225 HB vs 200 HB). 17CrNiMo6 Annealed runs hotter in service (300°C vs 200°C continuous).
17CrNiMo6 AnnealedChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
17CrNiMo6 +SChoose it when strength drives the design.
17CrNiMo6 Annealed vs 17CrNiMo6 +S: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all 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 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.
17CrNiMo6 Annealed17CrNiMo6 +S
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 210 GPa30.5 Msi · Shear Modulus 80 GPa11.6 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29
Physical
Density and transition temperatures.
Same in both: Density 7.85 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,420°C2,588 °F · Liquidus Temperature 1,490°C2,714 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 38 W/m·K22 BTU/hr·ft·°F · Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.5 µm/m·K6.4 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Min Service Temperature -40°C-40 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 8 % IACS · Electrical Resistivity 2.2×10⁻⁷ Ω·m8.66 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.6 V · Corrosion Resistance 12 / 100
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 30 / 100 · Castability 25 / 100 · Brazeability / Solderability 45 / 100 · Polishability 65 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 32 MJ/kg13,758 BTU/lb · Embodied Carbon (primary production) 2.3 kg CO₂/kg · Embodied Water 55 L/kg6.6 gal/lb · Typical Recycled Content 30%
Strength versus weight
Yield strength against density for every steel grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
17CrNiMo6 Annealed vs 17CrNiMo6 +S — frequently asked
Is 17CrNiMo6 +S stronger than 17CrNiMo6 Annealed?
Yes. 17CrNiMo6 +S has a typical yield strength of 480 MPa (69.6 ksi) against 430 MPa (62.4 ksi) for 17CrNiMo6 Annealed — about 12% more. Tensile strength is 780 MPa (113 ksi) vs 700 MPa (102 ksi).
Which condition does FabDigit quote by default, Annealed or +S?
Annealed is the default 17CrNiMo6 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 17CrNiMo6 Annealed over 17CrNiMo6 +S?
Pick 17CrNiMo6 Annealed when the part is bent, formed or impact-loaded, or when the part sees heat. Pick 17CrNiMo6 +S when strength drives the design.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 17CrNiMo6 Annealed and 17CrNiMo6 +S 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.