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Stainless Steel CX Solution Annealed vs CX Stress Relieved

Stainless Steel · CX temper comparison

CX Solution Annealed and CX Stress Relieved are two conditions of the same stainless steel grade, CX: Solution Annealed versus Stress Relieved. The chemistry is identical, so every difference below comes from the condition. CX Stress Relieved is the stronger of the two: yield strength 1,300 MPa (189 ksi) against 800 MPa (116 ksi) for CX Solution Annealed, about 63% more; tensile strength follows at 1,450 MPa (210 ksi) vs 1,050 MPa (152 ksi). In exchange, CX Solution Annealed is the more ductile: elongation 14% versus 8% for CX Stress Relieved, and CX Stress Relieved is harder (425 HB vs 320 HB). CX Stress Relieved runs hotter in service (400°C vs 350°C continuous). On the shop floor, CX Solution Annealed machines more easily (fair vs poor) and CX Solution Annealed welds better (very good vs good).

CX Solution AnnealedChoose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

CX Stress RelievedChoose it when strength drives the design, or when the part sees heat.

CX Solution Annealed vs CX Stress Relieved: properties

CX Solution AnnealedCX Stress Relieved

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

188 GPa27.3 Msi
190 GPa27.6 Msi

Tensile Strength (Ultimate)

1,050 MPa152 ksi
1,450 MPa210 ksi

Yield Strength (0.2% offset)

800 MPa116 ksi
1,300 MPa189 ksi

Elongation at Break

14%
8%

Reduction in Area

45%
25%

Compressive Strength

870 MPa126 ksi
1,350 MPa196 ksi

Shear Strength

630 MPa91.4 ksi
870 MPa126 ksi

Fatigue Strength (Endurance Limit)

450 MPa65.3 ksi
520 MPa75.4 ksi

Fracture Toughness (K_IC)

90 MPa·√m81.9 ksi·√in
55 MPa·√m50.1 ksi·√in

Charpy V-Notch Impact (RT)

28 J20.7 ft·lbf
16 J11.8 ft·lbf

Hardness, Brinell

320 HB
425 HB

Hardness, Rockwell C

34 HRC
45 HRC

Hardness, Vickers

340 HV
450 HV

Same in both: Shear Modulus 72 GPa10.4 Msi · Bulk Modulus 155 GPa22.5 Msi · Poisson's Ratio 0.29

Physical

Density and transition temperatures.

Same in both: Density 7.7 g/cm³0.28 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.

Thermal Conductivity

18 W/m·K10.4 BTU/hr·ft·°F
19 W/m·K11 BTU/hr·ft·°F

Max Service Temperature (continuous)

350°C662 °F
400°C752 °F

Same in both: Specific Heat Capacity 430 J/kg·K0.1 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 -60°C-76 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

2.2 % IACS
2.3 % IACS

Electrical Resistivity

8×10⁻⁷ Ω·m31.5 µΩ·in
7.8×10⁻⁷ Ω·m30.7 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.25 V · Corrosion Resistance 58 / 100

Manufacturability

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

Machinability

42 / 100
30 / 100

Machinability Rating (AISI 1212 = 100 %)

45%
32%

Weldability

72 / 100
55 / 100

Formability (cold)

30 / 100
12 / 100

Same in both: Castability 45 / 100 · Brazeability / Solderability 55 / 100 · Polishability 85 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 78 MJ/kg33,534 BTU/lb · Embodied Carbon (primary production) 6.8 kg CO₂/kg · Embodied Water 110 L/kg13.2 gal/lb · Typical Recycled Content 25%

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 scaleCX

CX Solution Annealed vs CX Stress Relieved — frequently asked

Is CX Stress Relieved stronger than CX Solution Annealed?

Yes. CX Stress Relieved has a typical yield strength of 1,300 MPa (189 ksi) against 800 MPa (116 ksi) for CX Solution Annealed — about 63% more. Tensile strength is 1,450 MPa (210 ksi) vs 1,050 MPa (152 ksi).

Which condition does FabDigit quote by default, Solution Annealed or Stress Relieved?

As Printed is the default CX condition in the FabDigit quote flow (neither Solution Annealed nor Stress Relieved). 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, CX Solution Annealed or CX Stress Relieved?

CX Solution Annealed. Its machinability rates fair (42/100) against poor (30/100) for CX Stress Relieved; for welding the order is CX Solution Annealed first (very good, 72/100) then CX Stress Relieved (good, 55/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in CX Solution Annealed and CX Stress Relieved 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.