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Stainless Steel AUS-10 Annealed vs AUS-10-CR

Stainless Steel · AUS-10 temper comparison

AUS-10 Annealed and AUS-10-CR are two conditions of the same stainless steel grade, AUS-10: Annealed versus CR (cold rolled). The chemistry is identical, so every difference below comes from the condition. AUS-10-CR is the stronger of the two: yield strength 780 MPa (113 ksi) against 450 MPa (65.3 ksi) for AUS-10 Annealed, about 73% more; tensile strength follows at 950 MPa (138 ksi) vs 760 MPa (110 ksi). In exchange, AUS-10 Annealed is the more ductile: elongation 13% versus 6% for AUS-10-CR, and AUS-10-CR is harder (285 HB vs 240 HB). AUS-10 Annealed runs hotter in service (500°C vs 300°C continuous). On the shop floor, AUS-10 Annealed machines more easily (fair vs poor).

AUS-10 AnnealedChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.

AUS-10-CRChoose it when strength drives the design.

AUS-10 Annealed vs AUS-10-CR: properties

AUS-10 AnnealedAUS-10-CR

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

760 MPa110 ksi
950 MPa138 ksi

Yield Strength (0.2% offset)

450 MPa65.3 ksi
780 MPa113 ksi

Elongation at Break

13%
6%

Reduction in Area

25%
15%

Compressive Strength

470 MPa68.2 ksi
800 MPa116 ksi

Shear Strength

480 MPa69.6 ksi
580 MPa84.1 ksi

Fatigue Strength (Endurance Limit)

340 MPa49.3 ksi
410 MPa59.5 ksi

Fracture Toughness (K_IC)

45 MPa·√m41 ksi·√in
38 MPa·√m34.6 ksi·√in

Charpy V-Notch Impact (RT)

25 J18.4 ft·lbf
12 J8.9 ft·lbf

Hardness, Brinell

240 HB
285 HB

Hardness, Rockwell B

99 HRB
104 HRB

Hardness, Rockwell C

22 HRC
30 HRC

Hardness, Vickers

250 HV
300 HV

Same in both: Elastic (Young's) Modulus 200 GPa29 Msi · Shear Modulus 78 GPa11.3 Msi · Bulk Modulus 165 GPa23.9 Msi · Poisson's Ratio 0.28

Physical

Density and transition temperatures.

Same in both: Density 7.7 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,370°C2,498 °F · Liquidus Temperature 1,480°C2,696 °F

Thermal

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

Max Service Temperature (continuous)

500°C932 °F
300°C572 °F

Same in both: Thermal Conductivity 24 W/m·K13.9 BTU/hr·ft·°F · Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 10.2 µm/m·K5.7 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Min Service Temperature -40°C-40 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 2.9 % IACS · Electrical Resistivity 6×10⁻⁷ Ω·m23.6 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

45 / 100
48 / 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

40 / 100
30 / 100

Machinability Rating (AISI 1212 = 100 %)

40%
30%

Weldability

25 / 100
20 / 100

Formability (cold)

35 / 100
20 / 100

Same in both: Castability 30 / 100 · Brazeability / Solderability 45 / 100 · Polishability 80 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 45 MJ/kg19,347 BTU/lb · Embodied Carbon (primary production) 3.3 kg CO₂/kg · Embodied Water 130 L/kg15.6 gal/lb · Typical Recycled Content 50%

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 scaleAUS-10

AUS-10 Annealed vs AUS-10-CR — frequently asked

Is AUS-10-CR stronger than AUS-10 Annealed?

Yes. AUS-10-CR has a typical yield strength of 780 MPa (113 ksi) against 450 MPa (65.3 ksi) for AUS-10 Annealed — about 73% more. Tensile strength is 950 MPa (138 ksi) vs 760 MPa (110 ksi).

Which condition does FabDigit quote by default, Annealed or CR?

Annealed is the default AUS-10 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, AUS-10 Annealed or AUS-10-CR?

AUS-10 Annealed. Its machinability rates fair (40/100) against poor (30/100) for AUS-10-CR; for welding the order is AUS-10 Annealed first (poor, 25/100) then AUS-10-CR (poor, 20/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in AUS-10 Annealed and AUS-10-CR 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.