Solder & Low-Melting Alloy Type 1 Casting Pewter-CF (Centrifugally cast)
Reinforced grade
ASTM B560 Type 1
Pick for thin, highly detailed multi-cavity parts; centrifugal filling gives finer grain and slightly higher strength than static pouring.
Values for the CF condition
Other Type 1 Casting Pewter tempers and conditions
Type 1 Casting Pewter is listed in 2 conditions; see the grade overview at Type 1 Casting Pewter.
- F
- CF
Compare all 2 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
FDefault As fabricated | Standard condition for pewter castings poured into rubber, plaster or steel moulds; no heat treatment applied. | 34 | 58 | 30 | 23 HB | 8.5 % IACS |
CFThis page Centrifugally cast | Pick for thin, highly detailed multi-cavity parts; centrifugal filling gives finer grain and slightly higher strength than static pouring. | 38 | 64 | 28 | 25 HB | 8.5 % IACS |
What is Type 1 Casting Pewter-CF?
Type 1 Casting Pewter-CF is Type 1 Casting Pewter in the CF grade — pick for thin, highly detailed multi-cavity parts; centrifugal filling gives finer grain and slightly higher strength than static pouring. Type 1 Casting Pewter-CF has a yield strength of 38 MPa (5.51 ksi) and a tensile strength of 64 MPa (9.28 ksi) — stronger than 85% of solder & low-melting alloy grades. Elongation at break is 28% and the elastic modulus is 47 GPa (6.82 Msi). Type 1 Casting Pewter-CF has a density of 7.3 g/cm³ (0.264 lb/in³), lighter than 93% of solder & low-melting alloy grades. It melts at 240°C (464 °F). F is the default condition FabDigit quotes; CF is available on request or by drawing note.
Advantages
- Polishes to a fine finish — 88/100, better than 98% of solder & low-melting alloy grades
- Good corrosion resistance — 64/100, better than 95% of solder & low-melting alloy grades
- Lightweight — 7.3 g/cm³ (0.264 lb/in³), better than 93% of solder & low-melting alloy grades
- High strength — 38 MPa (5.51 ksi), better than 85% of solder & low-melting alloy grades
- Easy to machine — 70/100, better than 79% of solder & low-melting alloy grades
Limitations
- Limited formability — 50/100, worse than 81% of solder & low-melting alloy grades
- High embodied carbon — 18 kg CO₂/kg, worse than 76% of solder & low-melting alloy grades
Type 1 Casting Pewter-CF properties
Typical room-temperature values for Type 1 Casting Pewter-CF; 20 are specific to this condition. Other listed values are Type 1 Casting Pewter reference data and may not represent this condition. Bars are the position among solder & low-melting alloy grades.
Physical3
Type 1 Casting Pewter-CF has a density of 7.3 g/cm³ (0.264 lb/in³), lighter than 93% of solder & low-melting alloy grades. It melts at 240°C (464 °F).
Mechanical14
Type 1 Casting Pewter-CF has a yield strength of 38 MPa (5.51 ksi) and a tensile strength of 64 MPa (9.28 ksi) — stronger than 85% of solder & low-melting alloy grades. Elongation at break is 28% and the elastic modulus is 47 GPa (6.82 Msi).
Thermal6
Type 1 Casting Pewter-CF is rated for continuous service to 95°C (203 °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 21.5 µm/m·K (11.9 µin/in·°F).
Electrical3
Type 1 Casting Pewter-CF conducts electricity at 8.5 % IACS, worse than 64% of solder & low-melting alloy grades.
Chemical & Environmental3
Corrosion resistance is good (64/100), better than 95% of solder & low-melting alloy grades.
Sustainability4
Producing a kilogram of Type 1 Casting Pewter-CF takes about 310 MJ of energy and emits 18 kg of CO₂ — more than 77% of solder & low-melting alloy grades. Typical recycled content is 35%.
Manufacturability8
Type 1 Casting Pewter-CF's machinability is very good (70/100, better than 79% of solder & low-melting alloy grades); weldability poor (20/100); formability fair (50/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with Type 1 Casting Pewter-CF
Is Type 1 Casting Pewter easy to machine?
Turns and drills effortlessly at high speed with sharp, high-rake HSS tools and kerosene/soluble-oil lubricant; avoid dull tooling that smears the soft matrix.
Can Type 1 Casting Pewter be welded?
Not arc-welded — repair and assembly are done by soft soldering or torch fusion with matching pewter rod and rosin/organic flux at 250–300 °C.
Can Type 1 Casting Pewter be formed, bent or molded?
Pour at roughly 280–320 °C into vulcanised-rubber, silicone, plaster or steel moulds; excellent fluidity for 1 mm detail, but allow ~1 % shrinkage and vent thin sections well.
What surface finishes work on Type 1 Casting Pewter?
Files, tumbles and buffs to a bright silvery lustre; antique/oxide patinas, lacquer or electroplated Ni/Ag/Au are common — anodising is not applicable.
Type 1 Casting 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 |
|---|---|---|
| Sb | 6 – 8 | 7 |
| Cu | 0.25 – 2 | 1.5 |
| Pblead-free limit for food-contact pewter | ≤ 0.05 | — |
| Bi | ≤ 0.08 | — |
| As | ≤ 0.05 | — |
| Fe | ≤ 0.02 | — |
| Zn | ≤ 0.01 | — |
| Cd | ≤ 0.01 | — |
| Snbalance tin | ≥ 90 (balance) | — |
Type 1 Casting Pewter-CF — frequently asked
What is Type 1 Casting Pewter-CF used for?
Type 1 Casting Pewter-CF is typically used for figurines and statuettes, jewelry and buckles, decorative hardware castings and award and trophy castings. In short: fine-detail pewter casting alloy; rubber and silicone mould friendly; low-temperature pour, 280–320 °C.
What is the yield strength of Type 1 Casting Pewter-CF?
Type 1 Casting Pewter-CF has a typical yield strength of 38 MPa (5.51 ksi) and a tensile strength of 64 MPa (9.28 ksi) — stronger than 85% of solder & low-melting alloy grades. Strength varies by condition: see the 2 listed tempers.
Is Type 1 Casting Pewter-CF easy to machine?
Yes — machinability is rated very good (70/100, better than 79% of solder & low-melting alloy grades). Turns and drills effortlessly at high speed with sharp, high-rake HSS tools and kerosene/soluble-oil lubricant; avoid dull tooling that smears the soft matrix.
Can Type 1 Casting Pewter-CF be welded?
Not readily — weldability is rated poor (20/100). Not arc-welded — repair and assembly are done by soft soldering or torch fusion with matching pewter rod and rosin/organic flux at 250–300 °C.
What surface finishes work on Type 1 Casting Pewter-CF?
Files, tumbles and buffs to a bright silvery lustre; antique/oxide patinas, lacquer or electroplated Ni/Ag/Au are common — anodising is not applicable.
Can Type 1 Casting Pewter-CF be formed, bent or molded?
Pour at roughly 280–320 °C into vulcanised-rubber, silicone, plaster or steel moulds; excellent fluidity for 1 mm detail, but allow ~1 % shrinkage and vent thin sections well.
What is the maximum service temperature of Type 1 Casting Pewter-CF?
Type 1 Casting Pewter-CF is rated for continuous use to about 95°C (203 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between Type 1 Casting Pewter-F and Type 1 Casting Pewter-CF?
F is the default condition — standard condition for pewter castings poured into rubber, plaster or steel moulds; no heat treatment applied. CF: pick for thin, highly detailed multi-cavity parts; centrifugal filling gives finer grain and slightly higher strength than static pouring. Yield strength is 34 MPa in F versus 38 MPa in CF.
Sources
- ASTM B560 — Standard Specification for Modern Pewter Alloys — ASTM International (2019)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys and Special-Purpose Materials (Tin and Tin Alloys) — ASM International (1990)
- ASM Specialty Handbook: Tin and Tin Alloys / ITRI technical data — ASM International / International Tin Association (2001)
- Casting pewter ingot datasheets (foundry/craft alloy suppliers) — various (2024)
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.