Stainless Steel CA28MWV-ANN vs CA28MWV-DT
Stainless Steel · CA28MWV temper comparison
CA28MWV-ANN and CA28MWV-DT are two conditions of the same stainless steel grade, CA28MWV: ANN (annealed) versus DT (double tempered (two tempers ≥ 690 °C) for long-term high-temperature…). The chemistry is identical, so every difference below comes from the condition. CA28MWV-DT is the stronger of the two: yield strength 740 MPa (107 ksi) against 500 MPa (72.5 ksi) for CA28MWV-ANN, about 48% more; tensile strength follows at 1,010 MPa (146 ksi) vs 760 MPa (110 ksi). In exchange, CA28MWV-ANN is the more ductile: elongation 18% versus 15% for CA28MWV-DT, and CA28MWV-DT is harder (293 HB vs 235 HB). CA28MWV-DT runs hotter in service (620°C vs 450°C continuous). On the shop floor, CA28MWV-ANN machines more easily (fair vs poor).
CA28MWV-ANNChoose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.
CA28MWV-DTChoose it when strength drives the design, or when the part sees heat.
CA28MWV-ANN vs CA28MWV-DT: 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
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell C
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 205 GPa29.7 Msi · Shear Modulus 79 GPa11.5 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) 1,420°C2,588 °F · Liquidus Temperature 1,480°C2,696 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 24 W/m·K13.9 BTU/hr·ft·°F · 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 · Latent Heat of Fusion 270 J/g116 BTU/lb · 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).
Same in both: Galvanic Potential (seawater, vs SCE) -0.3 V · Corrosion Resistance 42 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Same in both: Formability (cold) 10 / 100 · Castability 60 / 100 · Brazeability / Solderability 30 / 100 · Polishability 65 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 39 MJ/kg16,767 BTU/lb · Embodied Carbon (primary production) 3 kg CO₂/kg · Embodied Water 120 L/kg14.4 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.
CA28MWV-ANN vs CA28MWV-DT — frequently asked
Is CA28MWV-DT stronger than CA28MWV-ANN?
Yes. CA28MWV-DT has a typical yield strength of 740 MPa (107 ksi) against 500 MPa (72.5 ksi) for CA28MWV-ANN — about 48% more. Tensile strength is 1,010 MPa (146 ksi) vs 760 MPa (110 ksi).
Which condition does FabDigit quote by default, ANN or DT?
N+T is the default CA28MWV condition in the FabDigit quote flow (neither ANN nor DT). 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, CA28MWV-ANN or CA28MWV-DT?
CA28MWV-ANN. Its machinability rates fair (45/100) against poor (32/100) for CA28MWV-DT.
Ready to make it?
Upload a CAD file and FabDigit prices the part in CA28MWV-ANN and CA28MWV-DT 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.