Stainless Steel 302HQ Annealed vs 302HQ Cold Drawn
Stainless Steel · 302HQ temper comparison
302HQ Annealed and 302HQ Cold Drawn are two conditions of the same stainless steel grade, 302HQ: Annealed versus Cold Drawn. The chemistry is identical, so every difference below comes from the condition. 302HQ Cold Drawn is the stronger of the two: yield strength 400 MPa (58 ksi) against 230 MPa (33.4 ksi) for 302HQ Annealed, about 74% more; tensile strength follows at 620 MPa (89.9 ksi) vs 520 MPa (75.4 ksi). In exchange, 302HQ Annealed is the more ductile: elongation 55% versus 28% for 302HQ Cold Drawn, and 302HQ Cold Drawn is harder (185 HB vs 140 HB).
302HQ AnnealedChoose it when the part is bent, formed or impact-loaded.
302HQ Cold DrawnChoose it when strength drives the design.
302HQ Annealed vs 302HQ Cold Drawn: 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.
302HQ Annealed302HQ Cold Drawn
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
Same in both: Elastic (Young's) Modulus 193 GPa28 Msi · Shear Modulus 77 GPa11.2 Msi · Bulk Modulus 152 GPa22 Msi · Poisson's Ratio 0.29 · Hardness, Vickers 195 HV
Physical
Density and transition temperatures.
Same in both: Density 7.9 g/cm³0.29 lb/in³ · Melting Point (Solidus) 1,398°C2,548 °F · Liquidus Temperature 1,450°C2,642 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 16.2 W/m·K9.4 BTU/hr·ft·°F · Specific Heat Capacity 500 J/kg·K0.12 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 17.3 µm/m·K9.6 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Max Service Temperature (continuous) 500°C932 °F · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 2.4 % IACS · Electrical Resistivity 7.2×10⁻⁷ Ω·m28.3 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.1 V
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 65 / 100 · Brazeability / Solderability 70 / 100 · Polishability 80 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 53 MJ/kg22,786 BTU/lb · Embodied Carbon (primary production) 4.9 kg CO₂/kg · Embodied Water 250 L/kg30 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.
302HQ Annealed vs 302HQ Cold Drawn — frequently asked
Is 302HQ Cold Drawn stronger than 302HQ Annealed?
Yes. 302HQ Cold Drawn has a typical yield strength of 400 MPa (58 ksi) against 230 MPa (33.4 ksi) for 302HQ Annealed — about 74% more. Tensile strength is 620 MPa (89.9 ksi) vs 520 MPa (75.4 ksi).
Which condition does FabDigit quote by default, Annealed or Cold Drawn?
Cold Drawn is the default 302HQ 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 302HQ Annealed over 302HQ Cold Drawn?
Pick 302HQ Annealed when the part is bent, formed or impact-loaded. Pick 302HQ Cold Drawn when strength drives the design.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 302HQ Annealed and 302HQ Cold Drawn 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.