FabDigit

Steel SPHD vs DC03 vs DC05 vs DC06

Benchmark · 4 materials

Side-by-side benchmark of 4 steel grades.

SPHD vs DC03 and 2 more: properties

SPHDDC03DC05DC06

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

205 GPa29.7 Msi
210 GPa30.5 Msi
210 GPa30.5 Msi
210 GPa30.5 Msi

Shear Modulus

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

Tensile Strength (Ultimate)

320 MPa46.4 ksi
310 MPa45 ksi
300 MPa43.5 ksi
300 MPa43.5 ksi

Yield Strength (0.2% offset)

230 MPa33.4 ksi
195 MPa28.3 ksi
160 MPa23.2 ksi
150 MPa21.8 ksi

Elongation at Break

37%
38%
42%
42%

Reduction in Area

65%
65%
70%
70%

Compressive Strength

230 MPa33.4 ksi
150 MPa21.8 ksi

Shear Strength

205 MPa29.7 ksi
230 MPa33.4 ksi
225 MPa32.6 ksi
200 MPa29 ksi

Fatigue Strength (Endurance Limit)

155 MPa22.5 ksi
145 MPa21 ksi
150 MPa21.8 ksi
145 MPa21 ksi

Fracture Toughness (K_IC)

100 MPa·√m91 ksi·√in
140 MPa·√m127 ksi·√in
140 MPa·√m127 ksi·√in

Charpy V-Notch Impact (RT)

55 J40.6 ft·lbf
80 J59 ft·lbf
55 J40.6 ft·lbf

Hardness, Brinell

100 HB
95 HB
85 HB
88 HB

Hardness, Rockwell B

55 HRB
55 HRB
42 HRB
42 HRB

Hardness, Vickers

105 HV
100 HV
90 HV
92 HV

Same in both: Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,495°C2,723 °F
1,490°C2,714 °F
1,480°C2,696 °F
1,500°C2,732 °F

Liquidus Temperature

1,530°C2,786 °F
1,525°C2,777 °F
1,525°C2,777 °F
1,535°C2,795 °F

Same in both: Density 7.85 g/cm³0.28 lb/in³

Thermal

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

Thermal Conductivity

51 W/m·K29.5 BTU/hr·ft·°F
54 W/m·K31.2 BTU/hr·ft·°F
55 W/m·K31.8 BTU/hr·ft·°F
58 W/m·K33.5 BTU/hr·ft·°F

Specific Heat Capacity

480 J/kg·K0.11 BTU/lb·°F
470 J/kg·K0.11 BTU/lb·°F
470 J/kg·K0.11 BTU/lb·°F
470 J/kg·K0.11 BTU/lb·°F

Max Service Temperature (continuous)

350°C662 °F
350°C662 °F
300°C572 °F
250°C482 °F

Min Service Temperature

-20°C-4 °F
-30°C-22 °F
-40°C-40 °F
-40°C-40 °F

Same in both: Thermal Expansion (CTE, 20–100 °C) 12 µm/m·K6.7 µin/in·°F · Latent Heat of Fusion 247 J/g106 BTU/lb

Electrical

Conductivity and insulation.

Electrical Conductivity

10.8 % IACS
11 % IACS
11.5 % IACS
13 % IACS

Electrical Resistivity

1.6×10⁻⁷ Ω·m6.3 µΩ·in
1.6×10⁻⁷ Ω·m6.3 µΩ·in
1.5×10⁻⁷ Ω·m5.91 µΩ·in
1.4×10⁻⁷ Ω·m5.51 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.61 V
-0.61 V
-0.62 V
-0.6 V

Same in both: Corrosion Resistance 10 / 100

Manufacturability

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

Machinability

55 / 100
50 / 100
55 / 100
45 / 100

Machinability Rating (AISI 1212 = 100 %)

55%
55%
55%
50%

Weldability

92 / 100
95 / 100
95 / 100
95 / 100

Formability (cold)

90 / 100
88 / 100
97 / 100
99 / 100

Brazeability / Solderability

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

Polishability

40 / 100
50 / 100
60 / 100
55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

25 MJ/kg10,748 BTU/lb
28 MJ/kg12,038 BTU/lb
29 MJ/kg12,468 BTU/lb
26 MJ/kg11,178 BTU/lb

Embodied Carbon (primary production)

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

Embodied Water

40 L/kg4.8 gal/lb
40 L/kg4.8 gal/lb
35 L/kg4.2 gal/lb
35 L/kg4.2 gal/lb

Typical Recycled Content

25%
25%
25%
20%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

41 kN·m/kg
39 kN·m/kg
38 kN·m/kg
38 kN·m/kg

Specific Stiffness (E / density)

26.1 MN·m/kg
26.8 MN·m/kg
26.8 MN·m/kg
26.8 MN·m/kg

Modulus of Resilience

129 kJ/m³
91 kJ/m³
61 kJ/m³
54 kJ/m³

Thermal Diffusivity

13.5 mm²/s
14.6 mm²/s
14.9 mm²/s
15.7 mm²/s

Same in both: Thermal Shock Resistance Index 7

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 scaleSPHDDC03DC05DC06

Manufacturing and finishing

CapabilitySPHDDC03DC05DC06
Sheet metalYes
Default conditionHR
Relative cost$ Budget$ Budget$ Budget$ Budget
Min. machined wall
Best machined surface
Black OxideYes
CerakoteYes
Chrome PlatingYes
E-CoatingYes
Hot-Dip GalvanizingYes
Nickel PlatingYes
PTFE CoatingYes
PaintingYes
Powder CoatingYes
Tin PlatingYes
Zinc PlatingYes
Zinc-Flake (Dip-Spin) CoatingYes
Zinc-Nickel PlatingYes

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 SPHD and DC03 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.