FabDigit

S1100QL vs Hardox 500 and 2 more: properties

S1100QLHardox 500NM400Hardox 600

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Shear Modulus

81 GPa11.7 Msi
80 GPa11.6 Msi
80 GPa11.6 Msi
81 GPa11.7 Msi

Bulk Modulus

160 GPa23.2 Msi
160 GPa23.2 Msi
165 GPa23.9 Msi
160 GPa23.2 Msi

Poisson's Ratio

0.3
0.3
0.29
0.3

Tensile Strength (Ultimate)

1,350 MPa196 ksi
1,600 MPa232 ksi
1,250 MPa181 ksi
2,000 MPa290 ksi

Yield Strength (0.2% offset)

1,150 MPa167 ksi
1,300 MPa189 ksi
1,050 MPa152 ksi
1,650 MPa239 ksi

Elongation at Break

10%
8%
12%
7%

Reduction in Area

45%
40%
30%

Compressive Strength

1,150 MPa167 ksi
1,300 MPa189 ksi
1,100 MPa160 ksi
1,700 MPa247 ksi

Shear Strength

800 MPa116 ksi
960 MPa139 ksi
750 MPa109 ksi
1,200 MPa174 ksi

Fatigue Strength (Endurance Limit)

560 MPa81.2 ksi
650 MPa94.3 ksi
550 MPa79.8 ksi
750 MPa109 ksi

Fracture Toughness (K_IC)

75 MPa·√m68.3 ksi·√in
60 MPa·√m54.6 ksi·√in
70 MPa·√m63.7 ksi·√in
45 MPa·√m41 ksi·√in

Charpy V-Notch Impact (RT)

60 J44.3 ft·lbf
40 J29.5 ft·lbf
45 J33.2 ft·lbf
20 J14.8 ft·lbf

Hardness, Brinell

400 HB
500 HB
400 HB
600 HB

Hardness, Rockwell C

42 HRC
50 HRC
42 HRC
57 HRC

Hardness, Vickers

420 HV
530 HV
420 HV
635 HV

Same in both: Elastic (Young's) Modulus 210 GPa30.5 Msi

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,420°C2,588 °F
1,420°C2,588 °F
1,425°C2,597 °F
1,450°C2,642 °F

Same in both: Density 7.85 g/cm³0.28 lb/in³ · Liquidus Temperature 1,500°C2,732 °F

Thermal

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

Thermal Conductivity

32 W/m·K18.5 BTU/hr·ft·°F
30 W/m·K17.3 BTU/hr·ft·°F
40 W/m·K23.1 BTU/hr·ft·°F
30 W/m·K17.3 BTU/hr·ft·°F

Latent Heat of Fusion

270 J/g116 BTU/lb
250 J/g107 BTU/lb
270 J/g116 BTU/lb
250 J/g107 BTU/lb

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 · Max Service Temperature (continuous) 250°C482 °F · Min Service Temperature -40°C-40 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

7.5 % IACS
6 % IACS
8 % IACS

Electrical Resistivity

2.3×10⁻⁷ Ω·m9.06 µΩ·in
3×10⁻⁷ Ω·m11.8 µΩ·in
2.2×10⁻⁷ Ω·m8.66 µΩ·in
2.7×10⁻⁷ Ω·m10.6 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.6 V
-0.62 V
-0.62 V
-0.6 V

Corrosion Resistance

12 / 100
12 / 100
12 / 100
15 / 100

Manufacturability

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

Machinability

30 / 100
22 / 100
25 / 100
8 / 100

Machinability Rating (AISI 1212 = 100 %)

35%
18%
25%
7%

Weldability

55 / 100
55 / 100
55 / 100
30 / 100

Formability (cold)

30 / 100
25 / 100
30 / 100
12 / 100

Polishability

55 / 100
60 / 100
55 / 100
55 / 100

Brazeability / Solderability

30 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Carbon (primary production)

2.3 kg CO₂/kg
2.2 kg CO₂/kg
2.3 kg CO₂/kg
2.3 kg CO₂/kg

Embodied Water

60 L/kg7.2 gal/lb
40 L/kg4.8 gal/lb
60 L/kg7.2 gal/lb
50 L/kg6 gal/lb

Typical Recycled Content

20%
25%
20%
25%

Same in both: Embodied Energy (primary production) 30 MJ/kg12,898 BTU/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

172 kN·m/kg
204 kN·m/kg
159 kN·m/kg
255 kN·m/kg

Modulus of Resilience

3,149 kJ/m³
4,024 kJ/m³
2,625 kJ/m³
6,482 kJ/m³

Thermal Diffusivity

8.7 mm²/s
8.1 mm²/s
10.8 mm²/s
8.1 mm²/s

Thermal Shock Resistance Index

17
19
20
24

Same in both: Specific Stiffness (E / density) 26.8 MN·m/kg

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 scaleHardox 500NM400Hardox 600S1100QL

Manufacturing and finishing

CapabilityS1100QLHardox 500NM400Hardox 600
CNC machiningYesYes
Sheet metalYesYes
Default conditionQ&TQ&T
Relative cost$$ Standard$$ Standard$$ Standard$$ Standard
Min. machined wall0.8 mm0.8 mm
Best machined surfaceRa 1.6 µmRa 1.6 µm
AlCrNYesYes
AlTiNYesYes
Black OxideYesYes
CVD Al2O3YesYes
CVD TiCNYesYes
CVD TiNYesYes
CerakoteYesYes
Chrome PlatingYesYes
CrNYesYes
DLCYesYes
E-CoatingYesYes
HVOF CoatingYesYes
Hot-Dip GalvanizingYesYes
MoS2YesYes
Multilayer CVDYesYes
Nickel PlatingYesYes
PTFE CoatingYesYes
PaintingYesYes

They share 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 S1100QL and Hardox 500 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.