PVC 1120
ASTM D1784 Cell Class 12454
PVC 1120 is the North American designation for rigid unplasticised PVC meeting ASTM D1784 cell class 12454, the base compound for potable water, DWV and conduit pipe.
Reference datasheet — PVC 1120 is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the 12454 condition
PVC 1120 grades and fills
PVC 1120 is supplied in 6 conditions, soft to hard. 12454 is the default FabDigit quotes; the values on this page are for it.
Compare all 6 grades and fillsHide
| Grade · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
ASTM F891 cellular core | Use only for the cellular core of non-pressure DWV pipe to ASTM F891, where 0.85 g/cm³ cuts weight and cost; at 26 MPa and 1.5 GPa, stiffness must be taken over the full wall. | 25 | 26 | 25 | 72 Shore D |
/CPE | Pick the acrylic- or CPE-toughened impact-modified compound for injection-moulded fittings, profiles and cold-climate installation, where 120% elongation offsets the 2.4 GPa modulus. | 42 | 44 | 120 | 78 Shore D |
12334 | Use the 12334 DWV compound for non-pressure drain, waste and vent pipe and fittings, trading modulus down to 2.5 GPa for higher impact toughness and easier processing. | 43 | 45 | 90 | 80 Shore D |
flame-retardant compound optimized for electrical use and smoke density | Choose for cable trunking, distribution enclosures and riser fittings: the low-smoke flame-retardant compound reaches UL 94 5VA in thick walls, with tensile trimmed to 48 MPa. | 46 | 48 | 40 | 83 Shore D |
12454Default ASTM D1784 | Pick the ASTM D1784 cell class 12454 compound for Schedule 40/80 and SDR pressure pipe and fittings: 52 MPa tensile, 2.9 GPa modulus, HDB 13.8 MPa and 60 °C maximum service. | 50 | 52 | 60 | 82 Shore D |
20% PVC | Specify for injection-molded valve bodies and structural parts needing 6 GPa stiffness, low creep and 75 MPa tensile; the 20% glass fiber cuts elongation to 3% and impact toughness sharply. | 75 | 3 |
Supply forms, finishes and certifications
Ways PVC 1120 is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
NSF61 | NSF/ANSI 61 & 14 | Certification |
Clear | PVC TiO₂ | Grade option |
UV | UV-stabilized / weatherable PETG sheet | Grade option |
What is PVC 1120?
PVC 1120 is the North American designation for rigid unplasticised PVC meeting ASTM D1784 cell class 12454, the base compound for potable water, DWV and conduit pipe. Engineers use it for 52 MPa tensile strength, a 2.9 GPa modulus, low cost, fast solvent-cement jointing and NSF 61 potable-water listings; forms include extruded pipe and sheet, injection-moulded fittings, clear, cellular, 20 % glass-filled and V-0/5VA compounds. The ceiling is a 60 °C maximum service temperature, HCl release if overheated, and no compatibility with PE or PP fusion joining. Step up to CPVC 4120 for hot water. PVC 1120 has a density of 1.41 g/cm³ (0.0509 lb/in³), heavier than 81% of polymer grades. Its glass-transition temperature is 80°C (176 °F). PVC 1120 has a yield strength of 50 MPa (7.25 ksi) and a tensile strength of 52 MPa (7.54 ksi) — stronger than 52% of polymer grades. Elongation at break is 60% and the elastic modulus is 2.9 GPa (0.421 Msi).
What is PVC 1120 used for?
- potable water pipe
- DWV drain pipe
- electrical conduit
- irrigation pipe
Advantages
- Low, predictable mold shrinkage — 0.3%, better than 90% of polymer grades
- Low embodied carbon — 2.6 kg CO₂/kg, better than 89% of polymer grades
- Low moisture uptake — 0.05%, better than 84% of polymer grades
- Good corrosion resistance — 90/100, better than 82% of polymer grades
- Easy to machine — 75/100, better than 78% of polymer grades
Limitations
- Limited service temperature — 60°C (140 °F), worse than 87% of polymer grades
- Heavy — 1.41 g/cm³ (0.0509 lb/in³), worse than 81% of polymer grades
- Poor heat conductor — 0.15 W/m·K (0.0867 BTU/hr·ft·°F), worse than 80% of polymer grades
PVC 1120 properties
Typical room-temperature values for PVC 1120-12454; bars are the position among polymer grades.
Physical4
PVC 1120 has a density of 1.41 g/cm³ (0.0509 lb/in³), heavier than 81% of polymer grades. Its glass-transition temperature is 80°C (176 °F).
Mechanical16
PVC 1120 has a yield strength of 50 MPa (7.25 ksi) and a tensile strength of 52 MPa (7.54 ksi) — stronger than 52% of polymer grades. Elongation at break is 60% and the elastic modulus is 2.9 GPa (0.421 Msi).
Thermal11
PVC 1120 is rated for continuous service to 60°C (140 °F). It conducts heat at 0.15 W/m·K (0.0867 BTU/hr·ft·°F), worse than 80% of polymer grades. Thermal expansion is 66 µm/m·K (36.7 µin/in·°F).
Electrical7
PVC 1120 is an electrical insulator with a dielectric strength of 30 kV/mm (762 V/mil) and a resistivity of 1×10¹³ Ω·m.
Chemical & Environmental3
Corrosion resistance is excellent (90/100), better than 82% of polymer grades. UV resistance is fair.
Sustainability4
Producing a kilogram of PVC 1120 takes about 62 MJ of energy and emits 2.6 kg of CO₂ — less than 96% of polymer grades. Typical recycled content is 3%.
Manufacturability7
PVC 1120's machinability is very good (75/100, better than 78% of polymer grades); weldability good (60/100); formability good (55/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the polymer family
Yield strength against density for every polymer grade FabDigit runs. PVC 1120 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with PVC 1120
Is PVC 1120 easy to machine?
Turns, mills and drills very easily with sharp high-rake non-ferrous tooling at high speed and moderate feed with free chip evacuation. Avoid frictional heat, which scorches and discolours the cut surface.
Can PVC 1120 be welded?
Solvent cementing is the primary method (ASTM D2564 cement with F656 primer); hot-gas and extrusion welding with PVC rod at 240–300 °C hot air also work. Apart from ultrasonic welding, high-temperature fusion processes are not usable.
Can PVC 1120 be formed, bent or molded?
Hold extrusion and injection melt temperature at 175–205 °C with short residence time, and use chrome-plated barrels, screws and tooling to resist HCl attack. Sheet hot-bends or vacuum-forms at 100–140 °C.
PVC 1120 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 |
|---|---|---|
| 0.5 – 4 | 1.5 | |
| potable-water pressure pipe usually limited to 5 phr | 0 – 5 | 3 |
| North American pressure pipe mostly uses methyltin mercaptide | 0.4 – 2 | 0.8 |
| 0.8 – 2.5 | 1.5 | |
| 0.3 – 2 | 1 | |
| none or trace in 12454 pressure pipe; added in DWV/IM grades | 0 – 6 | 0 |
| PVC (SG-5 / K 65-67)suspension PVC, degree of polymerization 1000±50 | ≥ 82 (balance) |
What surface finishes work on PVC 1120?
Sands, screen prints, UV prints and accepts solvent-based paints. Degrease first and use low-temperature plasma or flame treatment to improve adhesion; it cannot be plated directly without chemical roughening and a base coat.
Equivalent designations
Standards and trade names that resolve to PVC 1120 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- ASTM
- D1784 Cell Class 12454
- Other
- NSF 61
How much does PVC 1120 cost?
PVC 1120 is a budget-cost polymer ($), cheaper than about 90% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
PVC 1120 — frequently asked
What is PVC 1120 used for?
PVC 1120 is typically used for potable water pipe, DWV drain pipe, electrical conduit and irrigation pipe. In short: standard North American PVC-U; lowest-cost pressure pipe compound; 60 °C service ceiling.
What is the yield strength of PVC 1120?
PVC 1120 has a typical yield strength of 50 MPa (7.25 ksi) and a tensile strength of 52 MPa (7.54 ksi) — stronger than 52% of polymer grades. Strength varies by condition: see the 6 listed tempers.
Is PVC 1120 easy to machine?
Yes — machinability is rated very good (75/100, better than 78% of polymer grades). Turns, mills and drills very easily with sharp high-rake non-ferrous tooling at high speed and moderate feed with free chip evacuation. Avoid frictional heat, which scorches and discolours the cut surface.
Can PVC 1120 be welded?
Yes — weldability is rated good (60/100). Solvent cementing is the primary method (ASTM D2564 cement with F656 primer); hot-gas and extrusion welding with PVC rod at 240–300 °C hot air also work. Apart from ultrasonic welding, high-temperature fusion processes are not usable.
What surface finishes work on PVC 1120?
Sands, screen prints, UV prints and accepts solvent-based paints. Degrease first and use low-temperature plasma or flame treatment to improve adhesion; it cannot be plated directly without chemical roughening and a base coat.
Can PVC 1120 be formed, bent or molded?
Hold extrusion and injection melt temperature at 175–205 °C with short residence time, and use chrome-plated barrels, screws and tooling to resist HCl attack. Sheet hot-bends or vacuum-forms at 100–140 °C.
What is the maximum service temperature of PVC 1120?
PVC 1120 is rated for continuous use to about 60°C (140 °F), and briefly to 70°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between PVC 1120 12454 and PVC 1120 CELL?
12454 is the default condition — pick the ASTM D1784 cell class 12454 compound for Schedule 40/80 and SDR pressure pipe and fittings: 52 MPa tensile, 2.9 GPa modulus, HDB 13.8 MPa and 60 °C maximum service. CELL: use only for the cellular core of non-pressure DWV pipe to ASTM F891, where 0.85 g/cm³ cuts weight and cost; at 26 MPa and 1.5 GPa, stiffness must be taken over the full wall. Yield strength is 50 MPa in 12454 versus 25 MPa in CELL.
How much does PVC 1120 cost?
PVC 1120 is a budget-cost polymer ($), cheaper than about 90% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- ASTM D1784 — Rigid PVC and CPVC Compounds (Cell Classification) — ASTM International (2020)
- ASTM D1785 — PVC Plastic Pipe, Schedules 40, 80, and 120 — ASTM International (2021)
- ASTM D2241 — PVC Pressure-Rated Pipe (SDR Series) — ASTM International (2020)
- NSF/ANSI 61 & 14 — Drinking Water System Components / Plastic Piping — NSF International (2023)
- Handbook of PVC Pipe: Design and Construction (5th ed.) — Uni-Bell PVC Pipe Association (2013)
- Engineered Materials Handbook Vol.2: Engineering Plastics — ASM International (1988)
- Rigid PVC pipe & fitting compound technical data — Westlake/Georgia Gulf, Sylvin, Teknor Apex (2023)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.