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Steel A27 Grade 60-30-A vs A27 Grade 60-30-N

Steel · A27 Grade 60-30 temper comparison

A27 Grade 60-30-A and A27 Grade 60-30-N are two conditions of the same steel grade, A27 Grade 60-30: A (solution annealed) versus N (normalized). The chemistry is identical, so every difference below comes from the condition. A27 Grade 60-30-N is the stronger of the two: yield strength 260 MPa (37.7 ksi) against 240 MPa (34.8 ksi) for A27 Grade 60-30-A, about 8% more; tensile strength follows at 485 MPa (70.3 ksi) vs 450 MPa (65.3 ksi).

A27 Grade 60-30-NChoose it when strength drives the design.

A27 Grade 60-30-A vs A27 Grade 60-30-N: properties

A27 Grade 60-30-AA27 Grade 60-30-N

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

450 MPa65.3 ksi
485 MPa70.3 ksi

Yield Strength (0.2% offset)

240 MPa34.8 ksi
260 MPa37.7 ksi

Elongation at Break

31%
28%

Reduction in Area

50%
45%

Fatigue Strength (Endurance Limit)

195 MPa28.3 ksi
205 MPa29.7 ksi

Charpy V-Notch Impact (RT)

27 J19.9 ft·lbf
30 J22.1 ft·lbf

Hardness, Brinell

125 HB
131 HB

Hardness, Rockwell B

70 HRB
73 HRB

Same in both: Elastic (Young's) Modulus 203 GPa29.4 Msi · Shear Modulus 78 GPa11.3 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Compressive Strength 260 MPa37.7 ksi · Shear Strength 320 MPa46.4 ksi · Fracture Toughness (K_IC) 90 MPa·√m81.9 ksi·√in · Hardness, Vickers 138 HV

Physical

Density and transition temperatures.

Same in both: Density 7.85 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,425°C2,597 °F · Liquidus Temperature 1,510°C2,750 °F

Thermal

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

Same in both: Thermal Conductivity 50 W/m·K28.9 BTU/hr·ft·°F · Specific Heat Capacity 480 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.9 µm/m·K6.6 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Max Service Temperature (continuous) 425°C797 °F · Min Service Temperature -20°C-4 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 10 % IACS · Electrical Resistivity 1.7×10⁻⁷ Ω·m6.69 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.61 V · Corrosion Resistance 10 / 100

Manufacturability

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

Machinability

62 / 100
58 / 100

Machinability Rating (AISI 1212 = 100 %)

70%
65%

Same in both: Weldability 88 / 100 · Formability (cold) 25 / 100 · Castability 75 / 100 · Brazeability / Solderability 70 / 100 · Polishability 50 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 22 MJ/kg9,458 BTU/lb · Embodied Carbon (primary production) 1.9 kg CO₂/kg · Embodied Water 45 L/kg5.4 gal/lb · Typical Recycled Content 90%

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 scaleA27 Grade 60-30

A27 Grade 60-30-A vs A27 Grade 60-30-N — frequently asked

Is A27 Grade 60-30-N stronger than A27 Grade 60-30-A?

Yes. A27 Grade 60-30-N has a typical yield strength of 260 MPa (37.7 ksi) against 240 MPa (34.8 ksi) for A27 Grade 60-30-A — about 8% more. Tensile strength is 485 MPa (70.3 ksi) vs 450 MPa (65.3 ksi).

Which condition does FabDigit quote by default, A or N?

N is the default A27 Grade 60-30 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 A27 Grade 60-30-A over A27 Grade 60-30-N?

Pick A27 Grade 60-30-N when strength drives the design.

Ready to make it?

Upload a CAD file and FabDigit prices the part in A27 Grade 60-30-A and A27 Grade 60-30-N 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.