Steel GE200 +A vs GE200 +NT
Steel · GE200 temper comparison
GE200 +A and GE200 +NT are two conditions of the same steel grade, GE200: +A (annealed) versus +NT (normalized and tempered). The chemistry is identical, so every difference below comes from the condition. GE200 +NT is the stronger of the two: yield strength 235 MPa (34.1 ksi) against 210 MPa (30.5 ksi) for GE200 +A, about 12% more; tensile strength follows at 430 MPa (62.4 ksi) vs 400 MPa (58 ksi). GE200 +NT is harder — 122 HB against 115 HB for GE200 +A — which matters for wear surfaces and threads.
GE200 +NTChoose it when strength drives the design, or when surface hardness matters.
GE200 +A vs GE200 +NT: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all steel grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all steel grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Reduction in Area
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 208 GPa30.2 Msi · Shear Modulus 80 GPa11.6 Msi · Bulk Modulus 165 GPa23.9 Msi · Poisson's Ratio 0.29 · Elongation at Break 29%
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 1,515°C2,759 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Same in both: Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12 µm/m·K6.7 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
Same in both: Electrical Conductivity 10 % IACS
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.62 V · Corrosion Resistance 12 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Same in both: Castability 78 / 100 · Brazeability / Solderability 60 / 100 · Polishability 50 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 26 MJ/kg11,178 BTU/lb · Embodied Carbon (primary production) 2 kg CO₂/kg · Embodied Water 45 L/kg5.4 gal/lb · Typical Recycled Content 80%
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.
GE200 +A vs GE200 +NT — frequently asked
Is GE200 +NT stronger than GE200 +A?
Yes. GE200 +NT has a typical yield strength of 235 MPa (34.1 ksi) against 210 MPa (30.5 ksi) for GE200 +A — about 12% more. Tensile strength is 430 MPa (62.4 ksi) vs 400 MPa (58 ksi).
Which condition does FabDigit quote by default, +A or +NT?
+N is the default GE200 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.
When should I choose GE200 +A over GE200 +NT?
Pick GE200 +NT when strength drives the design, or when surface hardness matters.
Ready to make it?
Upload a CAD file and FabDigit prices the part in GE200 +A and GE200 +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.