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Solder & Low-Melting Alloy B23 Grade 14 vs Corroding Lead

Solder & Low-Melting Alloy · grade comparison

Solder & Low-Melting Alloy B23 Grade 14 and Corroding Lead are both solder & low-melting alloy grades. B23 Grade 14 is the stronger of the two: yield strength 30 MPa (4.35 ksi) against 6 MPa (0.87 ksi) for Corroding Lead, about 5.0 times as much; tensile strength follows at 65 MPa (9.43 ksi) vs 13 MPa (1.89 ksi). In exchange, Corroding Lead is the more ductile: elongation 35% versus 3% for B23 Grade 14, and B23 Grade 14 is harder (21 HB vs 5 HB). B23 Grade 14 is lighter (9.73 g/cm³ vs 11.34 g/cm³ for Corroding Lead) and B23 Grade 14 is stiffer (29 GPa vs 14 GPa). On the shop floor, B23 Grade 14 machines more easily (excellent vs good), Corroding Lead welds better (good vs not recommended), and Corroding Lead sits in a lower cost tier (standard, $$) than B23 Grade 14 (high, $$$$).

B23 Grade 14Choose it when strength drives the design, or when weight is the constraint.

Corroding LeadChoose it when the part is bent, formed or impact-loaded, or when it will be welded.

B23 Grade 14 vs Corroding Lead: properties

B23 Grade 14Corroding Lead

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

29 GPa4.2 Msi
14 GPa2 Msi

Shear Modulus

10.3 GPa1.5 Msi
5.6 GPa0.81 Msi

Bulk Modulus

42 GPa6.1 Msi
46 GPa6.7 Msi

Poisson's Ratio

0.42
0.43

Tensile Strength (Ultimate)

65 MPa9.4 ksi
13 MPa1.9 ksi

Yield Strength (0.2% offset)

30 MPa4.4 ksi
6 MPa0.87 ksi

Elongation at Break

3%
35%

Compressive Strength

105 MPa15.2 ksi
—

Shear Strength

32 MPa4.6 ksi
13 MPa1.9 ksi

Fatigue Strength (Endurance Limit)

22 MPa3.2 ksi
3 MPa0.44 ksi

Charpy V-Notch Impact (RT)

2 J1.5 ft·lbf
—

Hardness, Brinell

21 HB
5 HB

Hardness, Vickers

22 HV
—

Physical

Density and transition temperatures.

Density

9.73 g/cm³0.35 lb/in³
11.34 g/cm³0.41 lb/in³

Melting Point (Solidus)

237°C459 °F
327°C621 °F

Liquidus Temperature

270°C518 °F
328°C622 °F

Thermal

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

Thermal Conductivity

24 W/m·K13.9 BTU/hr·ft·°F
35 W/m·K20.2 BTU/hr·ft·°F

Specific Heat Capacity

150 J/kg·K0.04 BTU/lb·°F
129 J/kg·K0.03 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

25 µm/m·K13.9 µin/in·°F
29.3 µm/m·K16.3 µin/in·°F

Latent Heat of Fusion

42 J/g18.1 BTU/lb
23 J/g10 BTU/lb

Max Service Temperature (continuous)

120°C248 °F
100°C212 °F

Min Service Temperature

-50°C-58 °F
-100°C-148 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

6 % IACS
8.4 % IACS

Electrical Resistivity

2.9×10⁻⁷ Ω·m11.4 µΩ·in
2.06×10⁻⁷ Ω·m8.11 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

45 / 100
68 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.55 V

Manufacturability

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

Machinability

92 / 100
55 / 100

Machinability Rating (AISI 1212 = 100 %)

160%
—

Weldability

10 / 100
60 / 100

Formability (cold)

20 / 100
95 / 100

Brazeability / Solderability

90 / 100
95 / 100

Polishability

60 / 100
20 / 100

Same in both: Castability 90 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

30 MJ/kg12,898 BTU/lb
22 MJ/kg9,458 BTU/lb

Embodied Carbon (primary production)

2.1 kg CO₂/kg
1.8 kg CO₂/kg

Typical Recycled Content

60%
55%

Same in both: Embodied Water 80 L/kg9.6 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

7 kN·m/kg
1 kN·m/kg

Specific Stiffness (E / density)

3 MN·m/kg
1.2 MN·m/kg

Modulus of Resilience

16 kJ/m³
1 kJ/m³

Thermal Diffusivity

16.4 mm²/s
23.9 mm²/s

Thermal Shock Resistance Index

2
1

Strength versus weight

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

125102050891011Density (g/cm³)Yield strength (MPa) — log scaleB23 Grade 14Corroding Lead

Manufacturing and finishing

CapabilityB23 Grade 14Corroding Lead
Default condition——
Relative cost$$$$ High$$ Standard
Min. machined wall——
Best machined surface——

B23 Grade 14 vs Corroding Lead — frequently asked

Is B23 Grade 14 stronger than Corroding Lead?

Yes. B23 Grade 14 has a typical yield strength of 30 MPa (4.35 ksi) against 6 MPa (0.87 ksi) for Corroding Lead — about 5.0 times as much. Tensile strength is 65 MPa (9.43 ksi) vs 13 MPa (1.89 ksi).

Which is cheaper, B23 Grade 14 or Corroding Lead?

Corroding Lead is the lower-cost material: it sits in the standard tier ($$) while B23 Grade 14 is high ($$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which is easier to machine, B23 Grade 14 or Corroding Lead?

B23 Grade 14. Its machinability rates excellent (92/100) against good (55/100) for Corroding Lead; for welding the order is Corroding Lead first (good, 60/100) then B23 Grade 14 (not recommended, 10/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in B23 Grade 14 and Corroding Lead 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.