FabDigit

Steel GX5NiS36 vs GX3Ni36 vs K93050 vs K93500

Benchmark · 4 materials

Side-by-side benchmark of 4 steel grades.

GX5NiS36 vs GX3Ni36 and 2 more: properties

GX5NiS36GX3Ni36K93050K93500

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

140 GPa20.3 Msi
140 GPa20.3 Msi
141 GPa20.5 Msi
141 GPa20.5 Msi

Shear Modulus

55 GPa8 Msi
55 GPa8 Msi
55 GPa8 Msi
57 GPa8.3 Msi

Bulk Modulus

105 GPa15.2 Msi
105 GPa15.2 Msi
112 GPa16.2 Msi
100 GPa14.5 Msi

Tensile Strength (Ultimate)

420 MPa60.9 ksi
450 MPa65.3 ksi
490 MPa71.1 ksi
490 MPa71.1 ksi

Yield Strength (0.2% offset)

200 MPa29 ksi
240 MPa34.8 ksi
280 MPa40.6 ksi
280 MPa40.6 ksi

Elongation at Break

12%
25%
40%
40%

Reduction in Area

20%
33%
70%
68%

Compressive Strength

430 MPa62.4 ksi
245 MPa35.5 ksi
285 MPa41.3 ksi
280 MPa40.6 ksi

Shear Strength

300 MPa43.5 ksi
320 MPa46.4 ksi
340 MPa49.3 ksi
340 MPa49.3 ksi

Fatigue Strength (Endurance Limit)

160 MPa23.2 ksi
195 MPa28.3 ksi
260 MPa37.7 ksi
240 MPa34.8 ksi

Fracture Toughness (K_IC)

58 MPa·√m52.8 ksi·√in
75 MPa·√m68.3 ksi·√in

Charpy V-Notch Impact (RT)

20 J14.8 ft·lbf
60 J44.3 ft·lbf
180 J133 ft·lbf
180 J133 ft·lbf

Hardness, Brinell

135 HB
130 HB
135 HB
140 HB

Hardness, Rockwell B

75 HRB
73 HRB
75 HRB
78 HRB

Hardness, Vickers

142 HV
137 HV
140 HV
147 HV

Same in both: Poisson's Ratio 0.29

Physical

Density and transition temperatures.

Density

8.1 g/cm³0.29 lb/in³
8.1 g/cm³0.29 lb/in³
8.05 g/cm³0.29 lb/in³
8.05 g/cm³0.29 lb/in³

Melting Point (Solidus)

1,425°C2,597 °F
1,425°C2,597 °F
1,427°C2,601 °F
1,427°C2,601 °F

Same in both: Liquidus Temperature 1,450°C2,642 °F

Thermal

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

Thermal Conductivity

11.5 W/m·K6.6 BTU/hr·ft·°F
11 W/m·K6.4 BTU/hr·ft·°F
10.5 W/m·K6.1 BTU/hr·ft·°F
10.5 W/m·K6.1 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

3 µm/m·K1.7 µin/in·°F
2.2 µm/m·K1.2 µin/in·°F
1.3 µm/m·K0.72 µin/in·°F
1.3 µm/m·K0.72 µin/in·°F

Latent Heat of Fusion

275 J/g118 BTU/lb
275 J/g118 BTU/lb
270 J/g116 BTU/lb
275 J/g118 BTU/lb

Max Service Temperature (continuous)

200°C392 °F
200°C392 °F
230°C446 °F
200°C392 °F

Min Service Temperature

-150°C-238 °F
-196°C-321 °F
-269°C-452 °F
-269°C-452 °F

Same in both: Specific Heat Capacity 515 J/kg·K0.12 BTU/lb·°F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 2.1 % IACS · Electrical Resistivity 8.2×10⁻⁷ Ω·m32.3 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

30 / 100
25 / 100
28 / 100
22 / 100

Galvanic Potential (seawater, vs SCE)

-0.35 V
-0.4 V
-0.45 V

Manufacturability

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

Machinability

40 / 100
30 / 100
30 / 100
30 / 100

Machinability Rating (AISI 1212 = 100 %)

35%
25%
30%
30%

Weldability

25 / 100
58 / 100
75 / 100
70 / 100

Formability (cold)

10 / 100
20 / 100
85 / 100
85 / 100

Castability

60 / 100
50 / 100
45 / 100
40 / 100

Brazeability / Solderability

55 / 100
65 / 100
75 / 100
80 / 100

Polishability

45 / 100
70 / 100
70 / 100
65 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

110 MJ/kg47,292 BTU/lb
90 MJ/kg38,693 BTU/lb
66 MJ/kg28,375 BTU/lb
100 MJ/kg42,992 BTU/lb

Embodied Carbon (primary production)

8.5 kg CO₂/kg
7 kg CO₂/kg
5.2 kg CO₂/kg
7.5 kg CO₂/kg

Embodied Water

300 L/kg35.9 gal/lb
200 L/kg24 gal/lb
120 L/kg14.4 gal/lb
210 L/kg25.2 gal/lb

Typical Recycled Content

35%
45%
30%
30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

52 kN·m/kg
56 kN·m/kg
61 kN·m/kg
61 kN·m/kg

Specific Stiffness (E / density)

17.3 MN·m/kg
17.3 MN·m/kg
17.5 MN·m/kg
17.5 MN·m/kg

Modulus of Resilience

143 kJ/m³
206 kJ/m³
278 kJ/m³
278 kJ/m³

Thermal Diffusivity

2.8 mm²/s
2.6 mm²/s
2.5 mm²/s
2.5 mm²/s

Thermal Shock Resistance Index

12
16
28
28

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 scaleGX3Ni36GX5NiS36K93050K93500

Manufacturing and finishing

CapabilityGX5NiS36GX3Ni36K93050K93500
Default condition
Relative cost$$$$ High$$$$ High$$$$ High$$$$ High
Min. machined wall
Best machined surface

Both take the same 9 finishes: Copper Plating, Electroless Nickel (EN), Epoxy Coating, Gold Plating, Hard Chrome Plating, Manganese Phosphate, Plasma Spray, Silver Plating, Zinc Phosphate.

Ready to make it?

Upload a CAD file and FabDigit prices the part in GX5NiS36 and GX3Ni36 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.