FabDigitFabDigit

Nickel Alloy IN-713C-SR vs IN-713C-STA

Nickel Alloy · IN-713C temper comparison

IN-713C-SR and IN-713C-STA are two conditions of the same nickel alloy grade, IN-713C: SR (stress relieved) versus STA (solution treated and aged). The chemistry is identical, so every difference below comes from the condition. Both yield at about 745 MPa — the mechanical properties are the same, and the difference is in how the stock is processed and what it is certified to (stress relieved versus solution treated and aged). IN-713C-SR is the more ductile: elongation 8% versus 6% for IN-713C-STA, and IN-713C-STA is harder (345 HB vs 325 HB).

IN-713C-SRChoose it when the part is bent, formed or impact-loaded.

IN-713C-SR vs IN-713C-STA: properties

IN-713C-SRIN-713C-STA

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

860 MPa125 ksi
900 MPa131 ksi

Yield Strength (0.2% offset)

745 MPa108 ksi
780 MPa113 ksi

Elongation at Break

8%
6%

Reduction in Area

9%
7%

Shear Strength

600 MPa87 ksi
630 MPa91.4 ksi

Fatigue Strength (Endurance Limit)

310 MPa45 ksi
330 MPa47.9 ksi

Fracture Toughness (K_IC)

60 MPa·√m54.6 ksi·√in
55 MPa·√m50.1 ksi·√in

Hardness, Brinell

325 HB
345 HB

Hardness, Rockwell C

33 HRC
36 HRC

Hardness, Vickers

345 HV
363 HV

Same in both: Elastic (Young's) Modulus 205 GPa29.7 Msi · Shear Modulus 78 GPa11.3 Msi · Bulk Modulus 180 GPa26.1 Msi · Poisson's Ratio 0.31

Physical

Density and transition temperatures.

Same in both: Density 7.91 g/cm³0.29 lb/in³ · Melting Point (Solidus) 1,260°C2,300 °F · Liquidus Temperature 1,345°C2,453 °F

Thermal

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

Thermal Conductivity

10.9 W/m·K6.3 BTU/hr·ft·°F
11 W/m·K6.4 BTU/hr·ft·°F

Max Service Temperature (continuous)

950°C1,742 °F
980°C1,796 °F

Same in both: Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 10.6 µm/m·K5.9 µin/in·°F · Latent Heat of Fusion 290 J/g125 BTU/lb · Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 1.3 % IACS · Electrical Resistivity 1.32×10⁻⁶ Ω·m52 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.15 V · Corrosion Resistance 68 / 100

Manufacturability

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

Machinability

10 / 100
8 / 100

Machinability Rating (AISI 1212 = 100 %)

8%
6%

Weldability

10 / 100
8 / 100

Formability (cold)

3 / 100
2 / 100

Same in both: Castability 88 / 100 · Brazeability / Solderability 45 / 100 · Polishability 60 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 190 MJ/kg81,685 BTU/lb · Embodied Carbon (primary production) 13.5 kg CO₂/kg · Embodied Water 400 L/kg47.9 gal/lb · Typical Recycled Content 35%

Strength versus weight

Yield strength against density for every nickel alloy grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

2005001,0006.577.588.59Density (g/cm³)Yield strength (MPa) — log scaleIN-713C

IN-713C-SR vs IN-713C-STA — frequently asked

What is the difference between IN-713C-SR and IN-713C-STA?

IN-713C-SR and IN-713C-STA are two conditions of the same nickel alloy grade, IN-713C: SR (stress relieved) versus STA (solution treated and aged). The chemistry is identical, so every difference below comes from the condition. Both yield at about 745 MPa — the mechanical properties are the same, and the difference is in how the stock is processed and what it is certified to (stress relieved versus solution treated and aged).

Which condition does FabDigit quote by default, SR or STA?

F is the default IN-713C condition in the FabDigit quote flow (neither SR nor STA). 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 IN-713C-SR over IN-713C-STA?

Pick IN-713C-SR when the part is bent, formed or impact-loaded.

Ready to make it?

Upload a CAD file and FabDigit prices the part in IN-713C-SR and IN-713C-STA 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.