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Stainless Steel CA6N-F vs CA6N N+T

Stainless Steel · CA6N temper comparison

CA6N-F and CA6N N+T are two conditions of the same stainless steel grade, CA6N: F (as fabricated) versus N+T (normalized and tempered). The chemistry is identical, so every difference below comes from the condition. CA6N-F is the stronger of the two: tensile strength 1,100 MPa (160 ksi) against 1,020 MPa (148 ksi) for CA6N N+T, about 8% more. In exchange, CA6N N+T is the more ductile: elongation 19% versus 9% for CA6N-F, and CA6N-F is harder (350 HB vs 300 HB). CA6N N+T runs hotter in service (400°C vs 250°C continuous). On the shop floor, CA6N N+T machines more easily (32 vs 22 out of 100) and CA6N N+T welds better (good vs fair).

CA6N-FChoose it when strength drives the design.

CA6N N+TChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.

CA6N-F vs CA6N N+T: properties

CA6N-FCA6N N+T

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

1,100 MPa160 ksi
1,020 MPa148 ksi

Yield Strength (0.2% offset)

900 MPa131 ksi
930 MPa135 ksi

Elongation at Break

9%
19%

Reduction in Area

25%
55%

Compressive Strength

950 MPa138 ksi
930 MPa135 ksi

Shear Strength

670 MPa97.2 ksi
620 MPa89.9 ksi

Fatigue Strength (Endurance Limit)

400 MPa58 ksi
420 MPa60.9 ksi

Fracture Toughness (K_IC)

55 MPa·√m50.1 ksi·√in
95 MPa·√m86.5 ksi·√in

Charpy V-Notch Impact (RT)

25 J18.4 ft·lbf
95 J70.1 ft·lbf

Hardness, Brinell

350 HB
300 HB

Hardness, Rockwell C

37 HRC
31 HRC

Hardness, Vickers

365 HV
315 HV

Same in both: Elastic (Young's) Modulus 200 GPa29 Msi · Shear Modulus 77 GPa11.2 Msi · Bulk Modulus 165 GPa23.9 Msi · Poisson's Ratio 0.3

Physical

Density and transition temperatures.

Same in both: Density 7.75 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,400°C2,552 °F · Liquidus Temperature 1,465°C2,669 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

24 W/m·K13.9 BTU/hr·ft·°F
25 W/m·K14.4 BTU/hr·ft·°F

Max Service Temperature (continuous)

250°C482 °F
400°C752 °F

Same in both: Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 10.6 µm/m·K5.9 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Min Service Temperature -100°C-148 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

2.1 % IACS
2.2 % IACS

Electrical Resistivity

8.2×10⁻⁷ Ω·m32.3 µΩ·in
7.8×10⁻⁷ Ω·m30.7 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

46 / 100
55 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.3 V

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

22 / 100
32 / 100

Machinability Rating (AISI 1212 = 100 %)

20%
30%

Weldability

40 / 100
62 / 100

Formability (cold)

6 / 100
15 / 100

Same in both: Castability 68 / 100 · Brazeability / Solderability 35 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 53 MJ/kg22,786 BTU/lb · Embodied Carbon (primary production) 3.6 kg CO₂/kg · Embodied Water 200 L/kg24 gal/lb · Typical Recycled Content 75%

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.

3005007001,0001,5002,0007.27.47.67.888.2Density (g/cm³)Yield strength (MPa) — log scaleCA6N

CA6N-F vs CA6N N+T — frequently asked

Is CA6N-F stronger than CA6N N+T?

Yes. CA6N-F has a typical tensile strength of 1,100 MPa (160 ksi) against 1,020 MPa (148 ksi) for CA6N N+T — about 8% more.

Which condition does FabDigit quote by default, F or N+T?

N+T is the default CA6N 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, CA6N-F or CA6N N+T?

CA6N N+T, by a small margin. Both rate poor for machinability — 32/100 against 22/100 for CA6N-F; for welding the order is CA6N N+T first (good, 62/100) then CA6N-F (fair, 40/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in CA6N-F and CA6N N+T 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.