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Solder & Low-Melting Alloy B23 Grade 13 vs B23 Grade 16

Solder & Low-Melting Alloy · grade comparison

Solder & Low-Melting Alloy B23 Grade 13 and B23 Grade 16 are both solder & low-melting alloy grades. B23 Grade 13 is the stronger of the two: tensile strength 65 MPa (9.43 ksi) against 45 MPa (6.53 ksi) for B23 Grade 16, about 44% more. B23 Grade 13 is the more ductile: elongation 6% versus 2% for B23 Grade 16. B23 Grade 13 is stiffer (29 GPa vs 24 GPa). On the shop floor, B23 Grade 16 sits in a lower cost tier (premium, $$$) than B23 Grade 13 (high, $$$$).

B23 Grade 13Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

B23 Grade 16Choose it when cost is the deciding factor.

B23 Grade 13 vs B23 Grade 16: properties

B23 Grade 13B23 Grade 16

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

29 GPa4.2 Msi
24 GPa3.5 Msi

Shear Modulus

10.5 GPa1.5 Msi
8.5 GPa1.2 Msi

Bulk Modulus

44 GPa6.4 Msi
42 GPa6.1 Msi

Tensile Strength (Ultimate)

65 MPa9.4 ksi
45 MPa6.5 ksi

Elongation at Break

6%
2%

Compressive Strength

108 MPa15.7 ksi
80 MPa11.6 ksi

Shear Strength

40 MPa5.8 ksi
30 MPa4.4 ksi

Fatigue Strength (Endurance Limit)

20 MPa2.9 ksi
14 MPa2 ksi

Hardness, Brinell

22 HB
21 HB

Charpy V-Notch Impact (RT)

—
2 J1.5 ft·lbf

Hardness, Vickers

—
22 HV

Same in both: Poisson's Ratio 0.42 · Yield Strength (0.2% offset) 30 MPa4.4 ksi

Physical

Density and transition temperatures.

Density

10.24 g/cm³0.37 lb/in³
10.1 g/cm³0.36 lb/in³

Melting Point (Solidus)

240°C464 °F
245°C473 °F

Liquidus Temperature

258°C496 °F
285°C545 °F

Thermal

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

Specific Heat Capacity

145 J/kg·K0.03 BTU/lb·°F
140 J/kg·K0.03 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

24 µm/m·K13.3 µin/in·°F
26 µm/m·K14.4 µin/in·°F

Latent Heat of Fusion

36 J/g15.5 BTU/lb
33 J/g14.2 BTU/lb

Same in both: Thermal Conductivity 24 W/m·K13.9 BTU/hr·ft·°F · Max Service Temperature (continuous) 120°C248 °F · Min Service Temperature -50°C-58 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

6.6 % IACS
6 % IACS

Electrical Resistivity

2.6×10⁻⁷ Ω·m10.2 µΩ·in
2.9×10⁻⁷ Ω·m11.4 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.53 V
-0.55 V

Corrosion Resistance

45 / 100
42 / 100

Manufacturability

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

Machinability

80 / 100
85 / 100

Weldability

15 / 100
12 / 100

Formability (cold)

25 / 100
20 / 100

Brazeability / Solderability

90 / 100
85 / 100

Polishability

60 / 100
55 / 100

Machinability Rating (AISI 1212 = 100 %)

—
75%

Same in both: Castability 92 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

25 MJ/kg10,748 BTU/lb
28 MJ/kg12,038 BTU/lb

Embodied Carbon (primary production)

1.9 kg CO₂/kg
2.3 kg CO₂/kg

Embodied Water

180 L/kg21.6 gal/lb
110 L/kg13.2 gal/lb

Typical Recycled Content

65%
60%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

6 kN·m/kg
4 kN·m/kg

Specific Stiffness (E / density)

2.8 MN·m/kg
2.4 MN·m/kg

Modulus of Resilience

16 kJ/m³
19 kJ/m³

Thermal Diffusivity

16.2 mm²/s
17 mm²/s

Same in both: Thermal Shock Resistance Index 2

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 13B23 Grade 16

Manufacturing and finishing

CapabilityB23 Grade 13B23 Grade 16
Default condition——
Relative cost$$$$ High$$$ Premium
Min. machined wall——
Best machined surface——

B23 Grade 13 vs B23 Grade 16 — frequently asked

Is B23 Grade 13 stronger than B23 Grade 16?

Yes. B23 Grade 13 has a typical tensile strength of 65 MPa (9.43 ksi) against 45 MPa (6.53 ksi) for B23 Grade 16 — about 44% more.

Which is cheaper, B23 Grade 13 or B23 Grade 16?

B23 Grade 16 is the lower-cost material: it sits in the premium tier ($$$) while B23 Grade 13 is high ($$$$). 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 13 or B23 Grade 16?

B23 Grade 16. Its machinability rates excellent (85/100) against very good (80/100) for B23 Grade 13.

Ready to make it?

Upload a CAD file and FabDigit prices the part in B23 Grade 13 and B23 Grade 16 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.