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Steel 22MnB5-ANN vs 22MnB5-CR

Steel · 22MnB5 temper comparison

22MnB5-ANN and 22MnB5-CR are two conditions of the same steel grade, 22MnB5: ANN (annealed) versus CR (cold rolled). The chemistry is identical, so every difference below comes from the condition. 22MnB5-CR is the stronger of the two: yield strength 380 MPa (55.1 ksi) against 330 MPa (47.9 ksi) for 22MnB5-ANN, about 15% more; tensile strength follows at 560 MPa (81.2 ksi) vs 500 MPa (72.5 ksi). In exchange, 22MnB5-ANN is the more ductile: elongation 28% versus 22% for 22MnB5-CR, and 22MnB5-CR is harder (160 HB vs 145 HB).

22MnB5-ANNChoose it when the part is bent, formed or impact-loaded.

22MnB5-CRChoose it when strength drives the design.

22MnB5-ANN vs 22MnB5-CR: properties

22MnB5-ANN22MnB5-CR

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

500 MPa72.5 ksi
560 MPa81.2 ksi

Yield Strength (0.2% offset)

330 MPa47.9 ksi
380 MPa55.1 ksi

Elongation at Break

28%
22%

Reduction in Area

62%
55%

Shear Strength

340 MPa49.3 ksi
380 MPa55.1 ksi

Fatigue Strength (Endurance Limit)

230 MPa33.4 ksi
250 MPa36.3 ksi

Charpy V-Notch Impact (RT)

80 J59 ft·lbf
60 J44.3 ft·lbf

Hardness, Brinell

145 HB
160 HB

Hardness, Rockwell B

78 HRB
85 HRB

Hardness, Vickers

152 HV
170 HV

Same in both: Elastic (Young's) Modulus 210 GPa30.5 Msi · Shear Modulus 81 GPa11.7 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.3

Physical

Density and transition temperatures.

Same in both: Density 7.85 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,465°C2,669 °F · Liquidus Temperature 1,520°C2,768 °F

Thermal

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

Thermal Conductivity

34 W/m·K19.6 BTU/hr·ft·°F
32 W/m·K18.5 BTU/hr·ft·°F

Same in both: Specific Heat Capacity 480 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12.5 µm/m·K6.9 µin/in·°F · Latent Heat of Fusion 260 J/g112 BTU/lb · Max Service Temperature (continuous) 250°C482 °F · Min Service Temperature -40°C-40 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

8.5 % IACS
8 % IACS

Electrical Resistivity

2.05×10⁻⁷ Ω·m8.07 µΩ·in
2.2×10⁻⁷ Ω·m8.66 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.6 V · Corrosion Resistance 12 / 100

Manufacturability

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

Machinability

60 / 100
55 / 100

Machinability Rating (AISI 1212 = 100 %)

65%
60%

Weldability

70 / 100
65 / 100

Formability (cold)

70 / 100
60 / 100

Same in both: Brazeability / Solderability 50 / 100 · Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 25 MJ/kg10,748 BTU/lb · Embodied Carbon (primary production) 2.1 kg CO₂/kg · Embodied Water 40 L/kg4.8 gal/lb · Typical Recycled Content 20%

Strength versus weight

Yield strength against density for every steel grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

2005001,0002,0007.588.5Density (g/cm³)Yield strength (MPa) — log scale22MnB5

22MnB5-ANN vs 22MnB5-CR — frequently asked

Is 22MnB5-CR stronger than 22MnB5-ANN?

Yes. 22MnB5-CR has a typical yield strength of 380 MPa (55.1 ksi) against 330 MPa (47.9 ksi) for 22MnB5-ANN — about 15% more. Tensile strength is 560 MPa (81.2 ksi) vs 500 MPa (72.5 ksi).

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

CR is the default 22MnB5 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, 22MnB5-ANN or 22MnB5-CR?

22MnB5-ANN, by a small margin. Both rate good for machinability — 60/100 against 55/100 for 22MnB5-CR; for welding the order is 22MnB5-ANN first (very good, 70/100) then 22MnB5-CR (good, 65/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 22MnB5-ANN and 22MnB5-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.