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Steel G17NiCrMo13-6 +A vs G17NiCrMo13-6 +N

Steel · G17NiCrMo13-6 temper comparison

G17NiCrMo13-6 +A and G17NiCrMo13-6 +N are two conditions of the same steel grade, G17NiCrMo13-6: +A (annealed) versus +N (normalized). The chemistry is identical, so every difference below comes from the condition. G17NiCrMo13-6 +N is the stronger of the two: yield strength 540 MPa (78.3 ksi) against 430 MPa (62.4 ksi) for G17NiCrMo13-6 +A, about 26% more; tensile strength follows at 780 MPa (113 ksi) vs 660 MPa (95.7 ksi). In exchange, G17NiCrMo13-6 +A is the more ductile: elongation 20% versus 14% for G17NiCrMo13-6 +N, and G17NiCrMo13-6 +N is harder (240 HB vs 195 HB).

G17NiCrMo13-6 +AChoose it when the part is bent, formed or impact-loaded.

G17NiCrMo13-6 +NChoose it when strength drives the design.

G17NiCrMo13-6 +A vs G17NiCrMo13-6 +N: properties

G17NiCrMo13-6 +AG17NiCrMo13-6 +N

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

660 MPa95.7 ksi
780 MPa113 ksi

Yield Strength (0.2% offset)

430 MPa62.4 ksi
540 MPa78.3 ksi

Elongation at Break

20%
14%

Reduction in Area

50%
40%

Compressive Strength

430 MPa62.4 ksi
540 MPa78.3 ksi

Shear Strength

400 MPa58 ksi
470 MPa68.2 ksi

Fatigue Strength (Endurance Limit)

300 MPa43.5 ksi
350 MPa50.8 ksi

Fracture Toughness (K_IC)

110 MPa·√m100 ksi·√in
85 MPa·√m77.4 ksi·√in

Charpy V-Notch Impact (RT)

55 J40.6 ft·lbf
40 J29.5 ft·lbf

Hardness, Brinell

195 HB
240 HB

Hardness, Rockwell C

13 HRC
22 HRC

Hardness, Vickers

205 HV
252 HV

Same in both: Elastic (Young's) Modulus 205 GPa29.7 Msi · Shear Modulus 80 GPa11.6 Msi · Bulk Modulus 163 GPa23.6 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 1,500°C2,732 °F

Thermal

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

Thermal Conductivity

35 W/m·K20.2 BTU/hr·ft·°F
34 W/m·K19.6 BTU/hr·ft·°F

Max Service Temperature (continuous)

400°C752 °F
380°C716 °F

Same in both: Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.8 µm/m·K6.6 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Min Service Temperature -60°C-76 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

6.5 % IACS
6 % IACS

Electrical Resistivity

2.8×10⁻⁷ Ω·m11 µΩ·in
3×10⁻⁷ Ω·m11.8 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.6 V · Corrosion Resistance 18 / 100

Manufacturability

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

Machinability

52 / 100
44 / 100

Machinability Rating (AISI 1212 = 100 %)

58%
45%

Weldability

48 / 100
40 / 100

Formability (cold)

26 / 100
18 / 100

Same in both: Castability 65 / 100 · Brazeability / Solderability 50 / 100 · Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 30 MJ/kg12,898 BTU/lb · Embodied Carbon (primary production) 2.4 kg CO₂/kg · Embodied Water 60 L/kg7.2 gal/lb · Typical Recycled Content 75%

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 scaleG17NiCrMo13-6

G17NiCrMo13-6 +A vs G17NiCrMo13-6 +N — frequently asked

Is G17NiCrMo13-6 +N stronger than G17NiCrMo13-6 +A?

Yes. G17NiCrMo13-6 +N has a typical yield strength of 540 MPa (78.3 ksi) against 430 MPa (62.4 ksi) for G17NiCrMo13-6 +A — about 26% more. Tensile strength is 780 MPa (113 ksi) vs 660 MPa (95.7 ksi).

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

+QT is the default G17NiCrMo13-6 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, G17NiCrMo13-6 +A or G17NiCrMo13-6 +N?

G17NiCrMo13-6 +A, by a small margin. Both rate fair for machinability — 52/100 against 44/100 for G17NiCrMo13-6 +N; for welding the order is G17NiCrMo13-6 +A first (fair, 48/100) then G17NiCrMo13-6 +N (fair, 40/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in G17NiCrMo13-6 +A and G17NiCrMo13-6 +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.