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Steel GE360 +A vs GE360 +NT

Steel · GE360 temper comparison

GE360 +A and GE360 +NT are two conditions of the same steel grade, GE360: +A (annealed) versus +NT (normalized and tempered). The chemistry is identical, so every difference below comes from the condition. GE360 +NT is the stronger of the two: yield strength 395 MPa (57.3 ksi) against 300 MPa (43.5 ksi) for GE360 +A, about 32% more; tensile strength follows at 670 MPa (97.2 ksi) vs 570 MPa (82.7 ksi). In exchange, GE360 +A is the more ductile: elongation 16% versus 14% for GE360 +NT, and GE360 +NT is harder (190 HB vs 160 HB).

GE360 +AChoose it when the part is bent, formed or impact-loaded.

GE360 +NTChoose it when strength drives the design.

GE360 +A vs GE360 +NT: properties

GE360 +AGE360 +NT

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

570 MPa82.7 ksi
670 MPa97.2 ksi

Yield Strength (0.2% offset)

300 MPa43.5 ksi
395 MPa57.3 ksi

Elongation at Break

16%
14%

Reduction in Area

35%
30%

Compressive Strength

300 MPa43.5 ksi
395 MPa57.3 ksi

Shear Strength

345 MPa50 ksi
410 MPa59.5 ksi

Fatigue Strength (Endurance Limit)

240 MPa34.8 ksi
290 MPa42.1 ksi

Fracture Toughness (K_IC)

75 MPa·√m68.3 ksi·√in
70 MPa·√m63.7 ksi·√in

Charpy V-Notch Impact (RT)

28 J20.7 ft·lbf
30 J22.1 ft·lbf

Hardness, Brinell

160 HB
190 HB

Hardness, Rockwell B

84 HRB
91 HRB

Hardness, Vickers

168 HV
200 HV

Same in both: Elastic (Young's) Modulus 210 GPa30.5 Msi · Shear Modulus 80 GPa11.6 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29

Physical

Density and transition temperatures.

Same in both: Density 7.85 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

49 W/m·K28.3 BTU/hr·ft·°F
48 W/m·K27.7 BTU/hr·ft·°F

Same in both: Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12.3 µm/m·K6.8 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 Conductivity

9.8 % IACS
9.5 % IACS

Electrical Resistivity

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

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.62 V · Corrosion Resistance 12 / 100

Manufacturability

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

Machinability

55 / 100
47 / 100

Machinability Rating (AISI 1212 = 100 %)

62%
57%

Weldability

55 / 100
52 / 100

Formability (cold)

25 / 100
18 / 100

Same in both: Castability 65 / 100 · Brazeability / Solderability 55 / 100 · Polishability 55 / 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 40 L/kg4.8 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 scaleGE360

GE360 +A vs GE360 +NT — frequently asked

Is GE360 +NT stronger than GE360 +A?

Yes. GE360 +NT has a typical yield strength of 395 MPa (57.3 ksi) against 300 MPa (43.5 ksi) for GE360 +A — about 32% more. Tensile strength is 670 MPa (97.2 ksi) vs 570 MPa (82.7 ksi).

Which condition does FabDigit quote by default, +A or +NT?

+N is the default GE360 condition in the FabDigit quote flow (neither +A nor +NT). 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, GE360 +A or GE360 +NT?

GE360 +A. Its machinability rates good (55/100) against fair (47/100) for GE360 +NT.

Ready to make it?

Upload a CAD file and FabDigit prices the part in GE360 +A and GE360 +NT 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.