Solder & Low-Melting Alloy Type 2 Sheet Pewter-O (Annealed)
Temper
UNS L13912 · ASTM B560 Type 2
Choose for the deepest draws and most severe spinning/raising, where maximum ductility matters more than sheet stiffness.
Values for the O condition
Other Type 2 Sheet Pewter tempers and conditions
Type 2 Sheet Pewter is listed in 3 conditions; see the grade overview at Type 2 Sheet Pewter.
Compare all 3 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
As fabricated | Pick when the Type 2 composition is poured into moulds (candlesticks, figurines, tankard parts) rather than rolled. | 26 | 50 | 35 | 20 HB | — |
OThis page Annealed | Choose for the deepest draws and most severe spinning/raising, where maximum ductility matters more than sheet stiffness. | 28 | 58 | 42 | 19 HB | — |
CRDefault Cold rolled | The normal stocked sheet condition: highest strength and best surface for spinning, stamping and hand-raising of tableware. | 43 | 68 | 25 | 25 HB | — |
What is Type 2 Sheet Pewter-O?
Type 2 Sheet Pewter-O is Type 2 Sheet Pewter in the O temper — choose for the deepest draws and most severe spinning/raising, where maximum ductility matters more than sheet stiffness. Type 2 Sheet Pewter-O has a yield strength of 28 MPa (4.06 ksi) and a tensile strength of 58 MPa (8.41 ksi) — stronger than 51% of solder & low-melting alloy grades. Elongation at break is 42% and the elastic modulus is 45 GPa (6.53 Msi). Type 2 Sheet Pewter-O has a density of 7.28 g/cm³ (0.263 lb/in³), lighter than 97% of solder & low-melting alloy grades. It melts at 244°C (471 °F). CR is the default condition FabDigit quotes; O is available on request or by drawing note.
Advantages
- Lightweight — 7.28 g/cm³ (0.263 lb/in³), better than 97% of solder & low-melting alloy grades
- Polishes to a fine finish — 85/100, better than 96% of solder & low-melting alloy grades
- Good corrosion resistance — 62/100, better than 93% of solder & low-melting alloy grades
- Ductile — tolerates forming and impact — 42%, better than 79% of solder & low-melting alloy grades
Type 2 Sheet Pewter-O properties
Typical room-temperature values for Type 2 Sheet Pewter-O; 11 are specific to this condition. Other listed values are Type 2 Sheet Pewter reference data and may not represent this condition. Bars are the position among solder & low-melting alloy grades.
Physical3
Type 2 Sheet Pewter-O has a density of 7.28 g/cm³ (0.263 lb/in³), lighter than 97% of solder & low-melting alloy grades. It melts at 244°C (471 °F).
Mechanical10
Type 2 Sheet Pewter-O has a yield strength of 28 MPa (4.06 ksi) and a tensile strength of 58 MPa (8.41 ksi) — stronger than 51% of solder & low-melting alloy grades. Elongation at break is 42% and the elastic modulus is 45 GPa (6.53 Msi).
Thermal6
Type 2 Sheet Pewter-O is rated for continuous service to 90°C (194 °F). It conducts heat at 50 W/m·K (28.9 BTU/hr·ft·°F), better than 63% of solder & low-melting alloy grades. Thermal expansion is 22 µm/m·K (12.2 µin/in·°F).
Electrical3
Type 2 Sheet Pewter-O conducts electricity at 9 % IACS, worse than 54% of solder & low-melting alloy grades.
Chemical & Environmental3
Corrosion resistance is good (62/100), better than 93% of solder & low-melting alloy grades.
Sustainability4
Producing a kilogram of Type 2 Sheet Pewter-O takes about 280 MJ of energy and emits 16 kg of CO₂ — more than 65% of solder & low-melting alloy grades. Typical recycled content is 30%.
Manufacturability8
Type 2 Sheet Pewter-O's machinability is good (55/100, better than 74% of solder & low-melting alloy grades); weldability poor (20/100); formability excellent (98/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with Type 2 Sheet Pewter-O
Is Type 2 Sheet Pewter easy to machine?
Very soft and gummy — use sharp high-rake HSS tools, high speed, light feeds and generous lubricant to prevent smearing and built-up edge; no heat-treat hardening available.
Can Type 2 Sheet Pewter be welded?
Fusion welding is impractical; joints are made by soft soldering or 'burning in' with pewter filler rod at low torch heat (base metal melts near 245 °C).
Can Type 2 Sheet Pewter be formed, bent or molded?
Outstanding cold formability — spins, deep-draws, presses and hand-raises at room temperature with little springback; interanneal is rarely needed since the alloy recovers near ambient.
What surface finishes work on Type 2 Sheet Pewter?
Buffs to a bright silvery lustre or is brushed/satin-finished; can be chemically darkened (oxidised) for antique effect; not suitable for anodizing and rarely plated.
Type 2 Sheet Pewter chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| Sbsolid-solution strengthener | 5 – 7.5 | 6 |
| Cuforms Cu6Sn5, refines structure | 1.5 – 3 | 2 |
| Pbimpurity limit — food-contact requirement | ≤ 0.05 | — |
| Snbalance tin | ≥ 90 (balance) | — |
Type 2 Sheet Pewter-O — frequently asked
What is Type 2 Sheet Pewter-O used for?
Type 2 Sheet Pewter-O is typically used for decorative tableware, ornamental spun hollowware, trophies and giftware and architectural trim. In short: most formable pewter sheet; room-temperature spinning alloy; solders, never welds.
What is the yield strength of Type 2 Sheet Pewter-O?
Type 2 Sheet Pewter-O has a typical yield strength of 28 MPa (4.06 ksi) and a tensile strength of 58 MPa (8.41 ksi) — stronger than 51% of solder & low-melting alloy grades. Strength varies by condition: see the 3 listed tempers.
Is Type 2 Sheet Pewter-O easy to machine?
Reasonably — machinability is rated good (55/100, better than 74% of solder & low-melting alloy grades). Very soft and gummy — use sharp high-rake HSS tools, high speed, light feeds and generous lubricant to prevent smearing and built-up edge; no heat-treat hardening available.
Can Type 2 Sheet Pewter-O be welded?
Not readily — weldability is rated poor (20/100). Fusion welding is impractical; joints are made by soft soldering or 'burning in' with pewter filler rod at low torch heat (base metal melts near 245 °C).
What surface finishes work on Type 2 Sheet Pewter-O?
Buffs to a bright silvery lustre or is brushed/satin-finished; can be chemically darkened (oxidised) for antique effect; not suitable for anodizing and rarely plated.
Can Type 2 Sheet Pewter-O be formed, bent or molded?
Outstanding cold formability — spins, deep-draws, presses and hand-raises at room temperature with little springback; interanneal is rarely needed since the alloy recovers near ambient.
What is the maximum service temperature of Type 2 Sheet Pewter-O?
Type 2 Sheet Pewter-O is rated for continuous use to about 90°C (194 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between Type 2 Sheet Pewter-CR and Type 2 Sheet Pewter-F?
CR is the default condition — the normal stocked sheet condition: highest strength and best surface for spinning, stamping and hand-raising of tableware. F: pick when the Type 2 composition is poured into moulds (candlesticks, figurines, tankard parts) rather than rolled. Yield strength is 43 MPa in CR versus 26 MPa in F.
Sources
- ASTM B560 Standard Specification for Modern Pewter Alloys — ASTM International (2019)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys (Tin and Tin Alloys) — ASM International (1990)
- UNS L13912 alloy record (Metals & Alloys in the Unified Numbering System) — SAE/ASTM (2017)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.