Stainless Steel 310HCb-CD vs 310HCb CW-1/4H
Stainless Steel · 310HCb temper comparison
310HCb-CD and 310HCb CW-1/4H are two conditions of the same stainless steel grade, 310HCb: CD (cold drawn) 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 450 MPa (65.3 ksi) for 310HCb-CD, about 14% more; tensile strength follows at 760 MPa (110 ksi) vs 690 MPa (100 ksi). In exchange, 310HCb-CD is the more ductile: elongation 30% versus 20% for 310HCb CW-1/4H, and 310HCb CW-1/4H is harder (240 HB vs 210 HB). 310HCb-CD runs hotter in service (1,100°C vs 550°C continuous).
310HCb-CDChoose 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-CD 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
Compressive Strength
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 200 GPa29 Msi · Shear Modulus 77 GPa11.2 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Reduction in Area 45% · Fracture Toughness (K_IC) 150 MPa·√m137 ksi·√in
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).
Same in both: Galvanic Potential (seawater, vs SCE) -0.05 V · Corrosion Resistance 70 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Weldability
Formability (cold)
Same in both: Machinability 35 / 100 · Machinability Rating (AISI 1212 = 100 %) 45% · 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-CD vs 310HCb CW-1/4H — frequently asked
Is 310HCb CW-1/4H stronger than 310HCb-CD?
Yes. 310HCb CW-1/4H has a typical yield strength of 515 MPa (74.7 ksi) against 450 MPa (65.3 ksi) for 310HCb-CD — about 14% more. Tensile strength is 760 MPa (110 ksi) vs 690 MPa (100 ksi).
Which condition does FabDigit quote by default, CD or CW-1/4H?
Annealed is the default 310HCb condition in the FabDigit quote flow (neither CD nor CW-1/4H). 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-CD or 310HCb CW-1/4H?
310HCb-CD. Its weldability rates good (65/100) against good (60/100) for 310HCb CW-1/4H.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 310HCb-CD 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.