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Steel ZG310-570-A vs ZG310-570-N

Steel · ZG310-570 temper comparison

ZG310-570-A and ZG310-570-N are two conditions of the same steel grade, ZG310-570: A (solution annealed) versus N (normalized). The chemistry is identical, so every difference below comes from the condition. ZG310-570-N is the stronger of the two: yield strength 350 MPa (50.8 ksi) against 305 MPa (44.2 ksi) for ZG310-570-A, about 15% more; tensile strength follows at 620 MPa (89.9 ksi) vs 570 MPa (82.7 ksi). In exchange, ZG310-570-A is the more ductile: elongation 20% versus 18% for ZG310-570-N, and ZG310-570-N is harder (195 HB vs 165 HB).

ZG310-570-AChoose it when the part is bent, formed or impact-loaded.

ZG310-570-NChoose it when strength drives the design.

ZG310-570-A vs ZG310-570-N: properties

ZG310-570-AZG310-570-N

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

570 MPa82.7 ksi
620 MPa89.9 ksi

Yield Strength (0.2% offset)

305 MPa44.2 ksi
350 MPa50.8 ksi

Elongation at Break

20%
18%

Reduction in Area

30%
28%

Compressive Strength

305 MPa44.2 ksi
340 MPa49.3 ksi

Shear Strength

400 MPa58 ksi
420 MPa60.9 ksi

Fatigue Strength (Endurance Limit)

235 MPa34.1 ksi
265 MPa38.4 ksi

Hardness, Brinell

165 HB
195 HB

Hardness, Rockwell B

84 HRB
93 HRB

Hardness, Vickers

173 HV
195 HV

Same in both: Elastic (Young's) Modulus 205 GPa29.7 Msi · Shear Modulus 79 GPa11.5 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Fracture Toughness (K_IC) 60 MPa·√m54.6 ksi·√in · Charpy V-Notch Impact (RT) 26 J19.2 ft·lbf

Physical

Density and transition temperatures.

Same in both: Density 7.8 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,420°C2,588 °F · Liquidus Temperature 1,490°C2,714 °F

Thermal

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

Thermal Conductivity

48 W/m·K27.7 BTU/hr·ft·°F
47 W/m·K27.2 BTU/hr·ft·°F

Same in both: 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 250 J/g107 BTU/lb · Max Service Temperature (continuous) 400°C752 °F · Min Service Temperature -20°C-4 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

1.75×10⁻⁷ Ω·m6.89 µΩ·in
1.8×10⁻⁷ Ω·m7.09 µΩ·in

Same in both: Electrical Conductivity 10 % IACS

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.65 V · Corrosion Resistance 10 / 100

Manufacturability

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

Machinability

56 / 100
48 / 100

Machinability Rating (AISI 1212 = 100 %)

60%
52%

Weldability

48 / 100
45 / 100

Formability (cold)

18 / 100
15 / 100

Same in both: Castability 62 / 100 · Brazeability / Solderability 55 / 100 · Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 27 MJ/kg11,608 BTU/lb · Embodied Carbon (primary production) 2 kg CO₂/kg · Embodied Water 55 L/kg6.6 gal/lb · Typical Recycled Content 85%

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 scaleZG310-570

ZG310-570-A vs ZG310-570-N — frequently asked

Is ZG310-570-N stronger than ZG310-570-A?

Yes. ZG310-570-N has a typical yield strength of 350 MPa (50.8 ksi) against 305 MPa (44.2 ksi) for ZG310-570-A — about 15% more. Tensile strength is 620 MPa (89.9 ksi) vs 570 MPa (82.7 ksi).

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

N+T is the default ZG310-570 condition in the FabDigit quote flow (neither A nor N). 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, ZG310-570-A or ZG310-570-N?

ZG310-570-A. Its machinability rates good (56/100) against fair (48/100) for ZG310-570-N.

Ready to make it?

Upload a CAD file and FabDigit prices the part in ZG310-570-A and ZG310-570-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.