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Steel HC260LA vs SPHD

Steel · grade comparison

Steel HC260LA and SPHD are both steel grades. HC260LA is the stronger of the two: yield strength 295 MPa (42.8 ksi) against 230 MPa (33.4 ksi) for SPHD, about 28% more; tensile strength follows at 390 MPa (56.6 ksi) vs 320 MPa (46.4 ksi). In exchange, SPHD is the more ductile: elongation 37% versus 30% for HC260LA, and HC260LA is harder (115 HB vs 100 HB).

HC260LAChoose it when strength drives the design.

SPHDChoose it when the part is bent, formed or impact-loaded.

HC260LA vs SPHD: properties

HC260LASPHD

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

210 GPa30.5 Msi
205 GPa29.7 Msi

Shear Modulus

81 GPa11.7 Msi
80 GPa11.6 Msi

Poisson's Ratio

0.3
0.29

Tensile Strength (Ultimate)

390 MPa56.6 ksi
320 MPa46.4 ksi

Yield Strength (0.2% offset)

295 MPa42.8 ksi
230 MPa33.4 ksi

Elongation at Break

30%
37%

Reduction in Area

60%
65%

Compressive Strength

295 MPa42.8 ksi
230 MPa33.4 ksi

Shear Strength

250 MPa36.3 ksi
205 MPa29.7 ksi

Fatigue Strength (Endurance Limit)

190 MPa27.6 ksi
155 MPa22.5 ksi

Charpy V-Notch Impact (RT)

40 J29.5 ft·lbf
55 J40.6 ft·lbf

Hardness, Brinell

115 HB
100 HB

Hardness, Rockwell B

70 HRB
55 HRB

Hardness, Vickers

122 HV
105 HV

Same in both: Bulk Modulus 160 GPa23.2 Msi · Fracture Toughness (K_IC) 100 MPa·√m91 ksi·√in

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,500°C2,732 °F
1,495°C2,723 °F

Same in both: Density 7.85 g/cm³0.28 lb/in³ · Liquidus Temperature 1,530°C2,786 °F

Thermal

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

Thermal Conductivity

48 W/m·K27.7 BTU/hr·ft·°F
51 W/m·K29.5 BTU/hr·ft·°F

Specific Heat Capacity

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

Latent Heat of Fusion

270 J/g116 BTU/lb
247 J/g106 BTU/lb

Min Service Temperature

-40°C-40 °F
-20°C-4 °F

Same in both: Thermal Expansion (CTE, 20–100 °C) 12 µm/m·K6.7 µin/in·°F · Max Service Temperature (continuous) 350°C662 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

10 % IACS
10.8 % IACS

Electrical Resistivity

1.7×10⁻⁷ Ω·m6.69 µΩ·in
1.6×10⁻⁷ Ω·m6.3 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

12 / 100
10 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.61 V

Manufacturability

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

Machinability Rating (AISI 1212 = 100 %)

60%
55%

Weldability

90 / 100
92 / 100

Formability (cold)

70 / 100
90 / 100

Brazeability / Solderability

65 / 100
70 / 100

Polishability

50 / 100
40 / 100

Same in both: Machinability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

30 MJ/kg12,898 BTU/lb
25 MJ/kg10,748 BTU/lb

Embodied Carbon (primary production)

2.4 kg CO₂/kg
2.2 kg CO₂/kg

Same in both: Embodied Water 40 L/kg4.8 gal/lb · Typical Recycled Content 25%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

50 kN·m/kg
41 kN·m/kg

Specific Stiffness (E / density)

26.8 MN·m/kg
26.1 MN·m/kg

Modulus of Resilience

207 kJ/m³
129 kJ/m³

Thermal Diffusivity

13 mm²/s
13.5 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 scaleSPHDHC260LA

Manufacturing and finishing

CapabilityHC260LASPHD
Sheet metal—Yes
Default condition—HR
Relative cost$ Budget$ Budget
Min. machined wall——
Best machined surface——
Black Oxide—Yes
Cerakote—Yes
Chrome Plating—Yes
E-Coating—Yes
Hot-Dip Galvanizing—Yes
Nickel Plating—Yes
PTFE Coating—Yes
Painting—Yes
Powder Coating—Yes
Tin Plating—Yes
Zinc Plating—Yes
Zinc-Flake (Dip-Spin) Coating—Yes
Zinc-Nickel Plating—Yes

They share 9 finishes: Copper Plating, Electroless Nickel (EN), Epoxy Coating, Gold Plating, Hard Chrome Plating, Manganese Phosphate, Plasma Spray, Silver Plating, Zinc Phosphate.

HC260LA vs SPHD — frequently asked

Is HC260LA stronger than SPHD?

Yes. HC260LA has a typical yield strength of 295 MPa (42.8 ksi) against 230 MPa (33.4 ksi) for SPHD — about 28% more. Tensile strength is 390 MPa (56.6 ksi) vs 320 MPa (46.4 ksi).

Which is cheaper, HC260LA or SPHD?

Both sit in the same relative cost tier ($, budget); the part price will be decided by machining time, tolerance and quantity rather than by the material.

When should I choose HC260LA over SPHD?

Pick HC260LA when strength drives the design. Pick SPHD when the part is bent, formed or impact-loaded.

Ready to make it?

Upload a CAD file and FabDigit prices the part in HC260LA and SPHD 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.