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Steel GX5NiS36-A vs GX5NiS36-F

Steel · GX5NiS36 temper comparison

GX5NiS36-A and GX5NiS36-F are two conditions of the same steel grade, GX5NiS36: A (solution annealed) versus F (as fabricated). The chemistry is identical, so every difference below comes from the condition. GX5NiS36-F is the stronger of the two: yield strength 215 MPa (31.2 ksi) against 180 MPa (26.1 ksi) for GX5NiS36-A, about 19% more; tensile strength follows at 430 MPa (62.4 ksi) vs 400 MPa (58 ksi). In exchange, GX5NiS36-A is the more ductile: elongation 15% versus 10% for GX5NiS36-F, and GX5NiS36-F is harder (145 HB vs 125 HB).

GX5NiS36-AChoose it when the part is bent, formed or impact-loaded.

GX5NiS36-FChoose it when strength drives the design.

GX5NiS36-A vs GX5NiS36-F: properties

GX5NiS36-AGX5NiS36-F

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

141 GPa20.5 Msi
138 GPa20 Msi

Tensile Strength (Ultimate)

400 MPa58 ksi
430 MPa62.4 ksi

Yield Strength (0.2% offset)

180 MPa26.1 ksi
215 MPa31.2 ksi

Elongation at Break

15%
10%

Reduction in Area

25%
15%

Compressive Strength

410 MPa59.5 ksi
440 MPa63.8 ksi

Shear Strength

285 MPa41.3 ksi
310 MPa45 ksi

Fracture Toughness (K_IC)

65 MPa·√m59.2 ksi·√in
50 MPa·√m45.5 ksi·√in

Charpy V-Notch Impact (RT)

25 J18.4 ft·lbf
16 J11.8 ft·lbf

Hardness, Brinell

125 HB
145 HB

Hardness, Rockwell B

70 HRB
78 HRB

Hardness, Vickers

131 HV
152 HV

Same in both: Shear Modulus 55 GPa8 Msi · Bulk Modulus 105 GPa15.2 Msi · Poisson's Ratio 0.29 · Fatigue Strength (Endurance Limit) 150 MPa21.8 ksi

Physical

Density and transition temperatures.

Same in both: Density 8.1 g/cm³0.29 lb/in³ · Melting Point (Solidus) 1,425°C2,597 °F · Liquidus Temperature 1,450°C2,642 °F

Thermal

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

Thermal Conductivity

11.8 W/m·K6.8 BTU/hr·ft·°F
11.2 W/m·K6.5 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

2.6 µm/m·K1.4 µin/in·°F
3.4 µm/m·K1.9 µin/in·°F

Same in both: Specific Heat Capacity 515 J/kg·K0.12 BTU/lb·°F · Latent Heat of Fusion 275 J/g118 BTU/lb · Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -150°C-238 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

2.2 % IACS
2.1 % IACS

Electrical Resistivity

7.9×10⁻⁷ Ω·m31.1 µΩ·in
8.4×10⁻⁷ Ω·m33.1 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

32 / 100
28 / 100

Manufacturability

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

Machinability

42 / 100
38 / 100

Machinability Rating (AISI 1212 = 100 %)

37%
33%

Weldability

28 / 100
22 / 100

Formability (cold)

15 / 100
8 / 100

Same in both: Castability 60 / 100 · Brazeability / Solderability 55 / 100 · Polishability 45 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 110 MJ/kg47,292 BTU/lb · Embodied Carbon (primary production) 8.5 kg CO₂/kg · Embodied Water 300 L/kg35.9 gal/lb · Typical Recycled Content 35%

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 scaleGX5NiS36

GX5NiS36-A vs GX5NiS36-F — frequently asked

Is GX5NiS36-F stronger than GX5NiS36-A?

Yes. GX5NiS36-F has a typical yield strength of 215 MPa (31.2 ksi) against 180 MPa (26.1 ksi) for GX5NiS36-A — about 19% more. Tensile strength is 430 MPa (62.4 ksi) vs 400 MPa (58 ksi).

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

SR is the default GX5NiS36 condition in the FabDigit quote flow (neither A nor F). 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 welds better, GX5NiS36-A or GX5NiS36-F?

GX5NiS36-A. Its weldability rates poor (28/100) against poor (22/100) for GX5NiS36-F.

Ready to make it?

Upload a CAD file and FabDigit prices the part in GX5NiS36-A and GX5NiS36-F 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.