Solder & Low-Melting Alloy Type 2 Sheet Pewter-CR vs Type 2 Sheet Pewter-O
Solder & Low-Melting Alloy · Type 2 Sheet Pewter temper comparison
Type 2 Sheet Pewter-CR and Type 2 Sheet Pewter-O are two conditions of the same solder & low-melting alloy grade, Type 2 Sheet Pewter: CR (cold rolled) versus O (annealed). The chemistry is identical, so every difference below comes from the condition. Type 2 Sheet Pewter-CR is the stronger of the two: yield strength 43 MPa (6.24 ksi) against 28 MPa (4.06 ksi) for Type 2 Sheet Pewter-O, about 54% more; tensile strength follows at 68 MPa (9.86 ksi) vs 58 MPa (8.41 ksi). In exchange, Type 2 Sheet Pewter-O is the more ductile: elongation 42% versus 25% for Type 2 Sheet Pewter-CR, and Type 2 Sheet Pewter-CR is harder (25 HB vs 19 HB).
Type 2 Sheet Pewter-CRChoose it when strength drives the design.
Type 2 Sheet Pewter-OChoose it when the part is bent, formed or impact-loaded.
Type 2 Sheet Pewter-CR vs Type 2 Sheet Pewter-O: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all solder & low-melting alloy grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all solder & low-melting alloy grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Type 2 Sheet Pewter-CRType 2 Sheet Pewter-O
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Brinell
Same in both: Elastic (Young's) Modulus 45 GPa6.5 Msi · Shear Modulus 17 GPa2.5 Msi · Bulk Modulus 55 GPa8 Msi · Poisson's Ratio 0.34
Physical
Density and transition temperatures.
Same in both: Density 7.28 g/cm³0.26 lb/in³ · Melting Point (Solidus) 244°C471 °F · Liquidus Temperature 295°C563 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 50 W/m·K28.9 BTU/hr·ft·°F · Specific Heat Capacity 230 J/kg·K0.05 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 22 µm/m·K12.2 µin/in·°F · Latent Heat of Fusion 55 J/g23.6 BTU/lb · Max Service Temperature (continuous) 90°C194 °F · Min Service Temperature -40°C-40 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 9 % IACS · Electrical Resistivity 1.9×10⁻⁷ Ω·m7.48 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.5 V · Corrosion Resistance 62 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Formability (cold)
Same in both: Weldability 20 / 100 · Castability 90 / 100 · Brazeability / Solderability 95 / 100 · Polishability 85 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 280 MJ/kg120,378 BTU/lb · Embodied Carbon (primary production) 16 kg CO₂/kg · Embodied Water 1,600 L/kg192 gal/lb · Typical Recycled Content 30%
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.
Type 2 Sheet Pewter-CR vs Type 2 Sheet Pewter-O — frequently asked
Is Type 2 Sheet Pewter-CR stronger than Type 2 Sheet Pewter-O?
Yes. Type 2 Sheet Pewter-CR has a typical yield strength of 43 MPa (6.24 ksi) against 28 MPa (4.06 ksi) for Type 2 Sheet Pewter-O — about 54% more. Tensile strength is 68 MPa (9.86 ksi) vs 58 MPa (8.41 ksi).
Which condition does FabDigit quote by default, CR or O?
CR is the default Type 2 Sheet Pewter condition in the FabDigit quote flow. The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.
Which is easier to machine, Type 2 Sheet Pewter-CR or Type 2 Sheet Pewter-O?
Type 2 Sheet Pewter-CR, by a small margin. Both rate good for machinability — 60/100 against 55/100 for Type 2 Sheet Pewter-O.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Type 2 Sheet Pewter-CR and Type 2 Sheet Pewter-O 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.