Copper Alloy TP1
GB TP1 · UNS C12000, C12200 · EN CR024A, Cu-DHP · JIS C1220
TP1 is a low-residual-phosphorus deoxidized copper equivalent to C12000 (DLP type), used mainly for pipe and tube that must be brazed or formed.
Reference datasheet — TP1 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 H58 condition
TP1 tempers and conditions
TP1 is supplied in 9 conditions, soft to hard. H58 is the default FabDigit quotes; the values on this page are for it.
Compare all 9 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Soft annealed | Choose for coiled ACR/refrigeration tube, severe bending, flaring, expansion and deep-drawn parts. | 70 | 220 | 48 | 45 HB | 93 % IACS |
Light anneal | Use when soft-temper formability is needed but with a little more stiffness for handling and straightness. | 105 | 240 | 40 | 55 HB | 93 % IACS |
Quarter hard | Sheet/strip for moderate forming with better handling stiffness than annealed. | 175 | 250 | 30 | 70 HB | 92 % IACS |
Light drawn tube | Straight-length tube that still needs moderate bending or expansion on site. | 205 | 255 | 25 | 72 HB | 92 % IACS |
H58Default Drawn general purpose | Default stocked condition for straight water/gas/ACR tube: good strength with enough ductility for cold bending on a former. | 235 | 285 | 18 | 85 HB | 92 % IACS |
Half hard | General-purpose strip temper for stamped and bent components needing moderate strength. | 245 | 285 | 14 | 87 HB | 92 % IACS |
Hard drawn | Pick for maximum pressure rating / rigidity in straight runs where no site bending is required. | 300 | 330 | 10 | 100 HB | 91 % IACS |
Full hard | Flat product where strength and flatness matter more than bendability (busbar covers, gaskets, roofing strip). | 300 | 325 | 6 | 100 HB | 91 % IACS |
Spring hard | Maximum cold-worked strength strip for springy clips and shims; essentially no formability left. | 330 | 360 | 4 | 110 HB | 91 % IACS |
What is TP1?
TP1 is a low-residual-phosphorus deoxidized copper equivalent to C12000 (DLP type), used mainly for pipe and tube that must be brazed or formed. The default drawn condition gives 235 MPa yield, 285 MPa tensile, 18 % elongation, 85 HB and 125 GPa modulus, with 92 % IACS and 350 W/m·K, and stock covers annealed O60/OL50 through H80 tempers. Phosphorus deoxidation eliminates hydrogen embrittlement and makes the grade easy to weld and braze, but conductivity is below tough-pitch copper, machinability is only about 30, and drawn tempers soften above roughly 150 °C. For maximum conductivity use T2; for heavy machining use a free-cutting grade such as C14500 or C36000. TP1 has a density of 8.94 g/cm³ (0.323 lb/in³), heavier than 90% of copper alloy grades. It melts at 1,065°C (1,949 °F). TP1 has a yield strength of 235 MPa (34.1 ksi) and a tensile strength of 285 MPa (41.3 ksi) — stronger than 52% of copper alloy grades. Elongation at break is 18% and the elastic modulus is 125 GPa (18.1 Msi).
What is TP1 used for?
- water tube
- refrigeration tube
- brazed assemblies
Advantages
- Readily welded — 95/100, better than 100% of copper alloy grades
- High electrical conductivity — 92 % IACS, better than 89% of copper alloy grades
- Conducts heat well — 350 W/m·K (202.2 BTU/hr·ft·°F), better than 88% of copper alloy grades
TP1 properties
Typical room-temperature values for TP1-H58; bars are the position among copper alloy grades.
Physical3
TP1 has a density of 8.94 g/cm³ (0.323 lb/in³), heavier than 90% of copper alloy grades. It melts at 1,065°C (1,949 °F).
Mechanical11
TP1 has a yield strength of 235 MPa (34.1 ksi) and a tensile strength of 285 MPa (41.3 ksi) — stronger than 52% of copper alloy grades. Elongation at break is 18% and the elastic modulus is 125 GPa (18.1 Msi).
Thermal6
TP1 is rated for continuous service to 200°C (392 °F). It conducts heat at 350 W/m·K (202.2 BTU/hr·ft·°F), better than 88% of copper alloy grades. Thermal expansion is 17.6 µm/m·K (9.78 µin/in·°F).
Electrical3
TP1 conducts electricity at 92 % IACS, better than 89% of copper alloy grades.
Chemical & Environmental3
Corrosion resistance is very good (70/100), better than 76% of copper alloy grades.
Sustainability4
Producing a kilogram of TP1 takes about 57 MJ of energy and emits 3.4 kg of CO₂ — less than 52% of copper alloy grades. Typical recycled content is 30%.
Manufacturability7
TP1's machinability is poor (30/100, worse than 67% of copper alloy grades); weldability excellent (95/100); formability good (60/100).
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 copper alloy family
Yield strength against density for every copper alloy grade FabDigit runs. TP1 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with TP1
Is TP1 easy to machine?
Gummy with long stringy chips — use sharp, high-rake, polished-flute tools, high speed with generous coolant; rating ~20 % of AISI 1212, choose C14500/C36000 if heavy machining is required.
Can TP1 be welded?
Phosphorus deoxidation gives freedom from hydrogen embrittlement, so GTAW/GMAW, oxy-fuel, capillary brazing (BCuP/BAg) and soft soldering are all straightforward; preheat 200–500 °C on thick sections due to high heat conduction.
Can TP1 be formed, bent or molded?
Excellent cold formability in O60 (bending, flaring, expansion, deep drawing); interanneal at 400–600 °C when cold work exceeds ~60 %, and remember drawn tempers soften above ~150 °C.
TP1 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 |
|---|---|---|
| Presidual deoxidiser — low-P (DLP) level | 0 – 0.01 | 0.01 |
| Biimpurity limit, GB/T 5231 | ≤ 0 | |
| Pbimpurity limit | ≤ 0.01 | |
| Sbimpurity limit | ≤ 0 | |
| Asimpurity limit | ≤ 0 | |
| Feimpurity limit | ≤ 0.01 | |
| Niimpurity limit | ≤ 0.01 | |
| Simpurity limit | ≤ 0.01 | |
| Znimpurity limit | ≤ 0.01 | |
| Snimpurity limit | ≤ 0 | |
| CuCu + Ag, including phosphorus | ≥ 99.9 (balance) |
What surface finishes work on TP1?
Not anodisable — bright-dip/pickle, mechanical polish for a bright finish, or tin/nickel plate and lacquer to stop tarnish; natural patina is acceptable outdoors.
Surface treatments FabDigit runs on copper alloy parts — pick them in the quote configurator or call them out on the drawing. Each links to its datasheet in the surface-finish library (thickness, specs, call-out, material verdicts).
Equivalent designations
Standards and trade names that resolve to Copper Alloy TP1 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
How much does TP1 cost?
TP1 is a high-cost copper alloy ($$$$), pricier than about 78% 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.
TP1 — frequently asked
What is TP1 used for?
TP1 is typically used for water tube, refrigeration tube and brazed assemblies. In short: best brazing copper tube; no hydrogen embrittlement; lower conductivity than ETP.
What is the yield strength of TP1?
TP1 has a typical yield strength of 235 MPa (34.1 ksi) and a tensile strength of 285 MPa (41.3 ksi) — stronger than 52% of copper alloy grades. Strength varies by condition: see the 9 listed tempers.
Is TP1 easy to machine?
Not especially — machinability is rated poor (30/100, worse than 67% of copper alloy grades). Gummy with long stringy chips — use sharp, high-rake, polished-flute tools, high speed with generous coolant; rating ~20 % of AISI 1212, choose C14500/C36000 if heavy machining is required.
Can TP1 be welded?
Yes — weldability is rated excellent (95/100). Phosphorus deoxidation gives freedom from hydrogen embrittlement, so GTAW/GMAW, oxy-fuel, capillary brazing (BCuP/BAg) and soft soldering are all straightforward; preheat 200–500 °C on thick sections due to high heat conduction.
What surface finishes work on TP1?
Not anodisable — bright-dip/pickle, mechanical polish for a bright finish, or tin/nickel plate and lacquer to stop tarnish; natural patina is acceptable outdoors.
Can TP1 be formed, bent or molded?
Excellent cold formability in O60 (bending, flaring, expansion, deep drawing); interanneal at 400–600 °C when cold work exceeds ~60 %, and remember drawn tempers soften above ~150 °C.
What is the maximum service temperature of TP1?
TP1 is rated for continuous use to about 200°C (392 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between TP1-H58 and TP1-O60?
H58 is the default condition — default stocked condition for straight water/gas/ACR tube: good strength with enough ductility for cold bending on a former. O60: choose for coiled ACR/refrigeration tube, severe bending, flaring, expansion and deep-drawn parts. Yield strength is 235 MPa in H58 versus 70 MPa in O60.
How much does TP1 cost?
TP1 is a high-cost copper alloy ($$$$), pricier than about 78% 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 B88 / B280 Seamless Copper Tube (C12000, C12200) — ASTM (2020)
- CDA Alloy Datasheet C12000 (DLP) — Copper Development Association (2023)
- ASM Handbook Vol. 2 — Properties of Nonferrous Alloys — ASM International (1990)
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.