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Steel GS200-A vs GS200 N+T

Steel · GS200 temper comparison

GS200-A and GS200 N+T are two conditions of the same steel grade, GS200: A (solution annealed) versus N+T (normalized and tempered). The chemistry is identical, so every difference below comes from the condition. GS200 N+T is the stronger of the two: yield strength 225 MPa (32.6 ksi) against 200 MPa (29 ksi) for GS200-A, about 13% more; tensile strength follows at 425 MPa (61.6 ksi) vs 400 MPa (58 ksi). GS200 N+T is harder — 122 HB against 112 HB for GS200-A — which matters for wear surfaces and threads.

GS200 N+TChoose it when strength drives the design, or when surface hardness matters.

GS200-A vs GS200 N+T: properties

GS200-AGS200 N+T

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

400 MPa58 ksi
425 MPa61.6 ksi

Yield Strength (0.2% offset)

200 MPa29 ksi
225 MPa32.6 ksi

Elongation at Break

27%
26%

Compressive Strength

200 MPa29 ksi
225 MPa32.6 ksi

Shear Strength

258 MPa37.4 ksi
275 MPa39.9 ksi

Fatigue Strength (Endurance Limit)

158 MPa22.9 ksi
180 MPa26.1 ksi

Fracture Toughness (K_IC)

105 MPa·√m95.6 ksi·√in
115 MPa·√m105 ksi·√in

Charpy V-Notch Impact (RT)

35 J25.8 ft·lbf
42 J31 ft·lbf

Hardness, Brinell

112 HB
122 HB

Hardness, Rockwell B

63 HRB
69 HRB

Hardness, Vickers

118 HV
128 HV

Same in both: Elastic (Young's) Modulus 205 GPa29.7 Msi · Shear Modulus 80 GPa11.6 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Reduction in Area 45%

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.

Thermal Conductivity

51 W/m·K29.5 BTU/hr·ft·°F
50 W/m·K28.9 BTU/hr·ft·°F

Min Service Temperature

-20°C-4 °F
-30°C-22 °F

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 270 J/g116 BTU/lb · Max Service Temperature (continuous) 425°C797 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

1.68×10⁻⁷ Ω·m6.61 µΩ·in
1.7×10⁻⁷ Ω·m6.69 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) -0.61 V · Corrosion Resistance 10 / 100

Manufacturability

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

Machinability

66 / 100
64 / 100

Machinability Rating (AISI 1212 = 100 %)

72%
70%

Weldability

90 / 100
88 / 100

Formability (cold)

32 / 100
28 / 100

Same in both: Castability 78 / 100 · Brazeability / Solderability 70 / 100 · Polishability 50 / 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 kg CO₂/kg · Embodied Water 45 L/kg5.4 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 scaleGS200

GS200-A vs GS200 N+T — frequently asked

Is GS200 N+T stronger than GS200-A?

Yes. GS200 N+T has a typical yield strength of 225 MPa (32.6 ksi) against 200 MPa (29 ksi) for GS200-A — about 13% more. Tensile strength is 425 MPa (61.6 ksi) vs 400 MPa (58 ksi).

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

N is the default GS200 condition in the FabDigit quote flow (neither A nor N+T). 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 GS200-A over GS200 N+T?

Pick GS200 N+T when strength drives the design, or when surface hardness matters.

Ready to make it?

Upload a CAD file and FabDigit prices the part in GS200-A and GS200 N+T 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.