Stainless Steel 310HCb Annealed vs 310HCb CW-1/4H
Stainless Steel · 310HCb temper comparison
310HCb Annealed and 310HCb CW-1/4H are two conditions of the same stainless steel grade, 310HCb: Annealed versus CW-1/4H (1/4 Hard). The chemistry is identical, so every difference below comes from the condition. 310HCb CW-1/4H is the stronger of the two: yield strength 515 MPa (74.7 ksi) against 260 MPa (37.7 ksi) for 310HCb Annealed, about 98% more; tensile strength follows at 760 MPa (110 ksi) vs 590 MPa (85.6 ksi). In exchange, 310HCb Annealed is the more ductile: elongation 45% versus 20% for 310HCb CW-1/4H, and 310HCb CW-1/4H is harder (240 HB vs 170 HB). 310HCb Annealed runs hotter in service (1,100°C vs 550°C continuous). On the shop floor, 310HCb Annealed welds better (very good vs good).
310HCb AnnealedChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
310HCb CW-1/4HChoose it when strength drives the design.
310HCb Annealed vs 310HCb CW-1/4H: 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.
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: Elastic (Young's) Modulus 200 GPa29 Msi · Shear Modulus 77 GPa11.2 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29
Physical
Density and transition temperatures.
Same in both: Density 7.98 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.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 14.2 W/m·K8.2 BTU/hr·ft·°F · Specific Heat Capacity 500 J/kg·K0.12 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 15.9 µm/m·K8.8 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Same in both: Electrical Conductivity 2.2 % IACS
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.05 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: Brazeability / Solderability 60 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 68 MJ/kg29,235 BTU/lb · Embodied Carbon (primary production) 5.8 kg CO₂/kg · Embodied Water 200 L/kg24 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.
310HCb Annealed vs 310HCb CW-1/4H — frequently asked
Is 310HCb CW-1/4H stronger than 310HCb Annealed?
Yes. 310HCb CW-1/4H has a typical yield strength of 515 MPa (74.7 ksi) against 260 MPa (37.7 ksi) for 310HCb Annealed — about 98% more. Tensile strength is 760 MPa (110 ksi) vs 590 MPa (85.6 ksi).
Which condition does FabDigit quote by default, Annealed or CW-1/4H?
Annealed is the default 310HCb 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 welds better, 310HCb Annealed or 310HCb CW-1/4H?
310HCb Annealed. Its weldability rates very good (70/100) against good (60/100) for 310HCb CW-1/4H.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 310HCb Annealed and 310HCb CW-1/4H 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.