Steel CPM 3V Annealed vs CPM 3V HT 54-56 HRC
Steel · CPM 3V temper comparison
CPM 3V Annealed and CPM 3V HT 54-56 HRC are two conditions of the same steel grade, CPM 3V: Annealed versus HT 54-56 HRC (high-toughness temper). The chemistry is identical, so every difference below comes from the condition. CPM 3V HT 54-56 HRC is the stronger of the two: yield strength 1,550 MPa (225 ksi) against 600 MPa (87 ksi) for CPM 3V Annealed, about 158% more; tensile strength follows at 1,800 MPa (261 ksi) vs 900 MPa (131 ksi). In exchange, CPM 3V Annealed is the more ductile: elongation 12% versus 4% for CPM 3V HT 54-56 HRC, and CPM 3V HT 54-56 HRC is harder (560 HB vs 255 HB). CPM 3V HT 54-56 HRC runs hotter in service (500°C vs 400°C continuous). On the shop floor, CPM 3V Annealed machines more easily (poor vs not recommended) and CPM 3V Annealed welds better (poor vs not recommended).
CPM 3V AnnealedChoose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.
CPM 3V HT 54-56 HRCChoose it when strength drives the design, or when the part sees heat.
CPM 3V Annealed vs CPM 3V HT 54-56 HRC: 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.
CPM 3V AnnealedCPM 3V HT 54-56 HRC
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)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell C
Hardness, Vickers
Same in both: Shear Modulus 81 GPa11.7 Msi · Poisson's Ratio 0.3 · Hardness, Rockwell B 103 HRB
Physical
Density and transition temperatures.
Same in both: Density 7.46 g/cm³0.27 lb/in³ · Melting Point (Solidus) 1,420°C2,588 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Max Service Temperature (continuous)
Same in both: Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 10.8 µm/m·K6 µin/in·°F · Min Service Temperature -60°C-76 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Same in both: Electrical Conductivity 2.9 % IACS
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 40 / 100 · Polishability 80 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 45 MJ/kg19,347 BTU/lb · Embodied Carbon (primary production) 3.5 kg CO₂/kg · Typical Recycled Content 20%
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.
CPM 3V Annealed vs CPM 3V HT 54-56 HRC — frequently asked
Is CPM 3V HT 54-56 HRC stronger than CPM 3V Annealed?
Yes. CPM 3V HT 54-56 HRC has a typical yield strength of 1,550 MPa (225 ksi) against 600 MPa (87 ksi) for CPM 3V Annealed — about 158% more. Tensile strength is 1,800 MPa (261 ksi) vs 900 MPa (131 ksi).
Which condition does FabDigit quote by default, Annealed or HT 54-56 HRC?
Annealed is the default CPM 3V 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 is easier to machine, CPM 3V Annealed or CPM 3V HT 54-56 HRC?
CPM 3V Annealed. Its machinability rates poor (30/100) against not recommended (12/100) for CPM 3V HT 54-56 HRC; for welding the order is CPM 3V Annealed first (poor, 25/100) then CPM 3V HT 54-56 HRC (not recommended, 10/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in CPM 3V Annealed and CPM 3V HT 54-56 HRC 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.