Copper Alloy TP2-H06
Supply condition
GB TP2 · UNS C12200, C12000 · EN CR023A, Cu-DLP · JIS C1220, C1201
H06 = extra hard
Extra-hard strip for flat springs, clips and shim stock where formability is no longer required.
Values for the H06 condition
Other TP2 tempers and conditions
TP2 is listed in 12 conditions; see the grade overview at TP2.
Compare all 12 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Soft annealed | Fully annealed coil tube and sheet for maximum ductility — ACR coils, flare fittings, deep drawing and spinning. | 70 | 225 | 45 | 42 HB | 85 % IACS |
As hot rolled | Mill-finish hot-worked plate, bar and busbar-size sections supplied without a final cold pass or anneal. | 75 | 220 | 40 | 45 HB | 85 % IACS |
Light annealed | Soft but fine-grained tube/strip for tight bending with a better surface and slightly higher strength than full anneal. | 90 | 235 | 42 | 48 HB | 85 % IACS |
1/8 hard | Barely work-hardened flat product for deep forming that still needs some spring and flatness. | 170 | 250 | 30 | 65 HB | 85 % IACS |
Light drawn | Lightly cold-drawn tube that still bends on a machine but is stiffer and straighter than annealed coil. | 190 | 255 | 28 | 70 HB | 85 % IACS |
Quarter hard | Quarter-hard strip for moderate bending and stamping of gaskets, washers and roofing sheet. | 205 | 265 | 25 | 75 HB | 85 % IACS |
H58Default Drawn general purpose | The default stocked condition: cold-drawn straight lengths of TP2 water/gas/medical-gas tube — rigid, pressure-rated, brazed rather than bent. | 250 | 290 | 18 | 85 HB | 84 % IACS |
Half hard | Half-hard plate and strip: the usual choice for flat gaskets, busbar and fabricated panels needing stiffness plus some bendability. | 250 | 295 | 14 | 88 HB | 84 % IACS |
Full hard | Hard-rolled flat and drawn rod product for flat springs, contacts and parts needing stiffness and wear resistance. | 280 | 320 | 7 | 95 HB | 84 % IACS |
Hard drawn | Maximum-strength drawn tube for high-pressure lines and structural/handrail use where no further bending is required. | 310 | 350 | 8 | 100 HB | 84 % IACS |
H06This page Extra hard | Extra-hard strip for flat springs, clips and shim stock where formability is no longer required. | 315 | 350 | 5 | 102 HB | 83 % IACS |
Spring hard | Maximum cold-worked strip/wire temper for spring contacts and formed clips; brittle to bend, softens if brazed. | 335 | 370 | 4 | 108 HB | 83 % IACS |
What is TP2-H06?
TP2-H06 is TP2 supplied in the H06 condition — extra-hard strip for flat springs, clips and shim stock where formability is no longer required. TP2-H06 has a yield strength of 315 MPa (45.7 ksi) and a tensile strength of 350 MPa (50.8 ksi) — stronger than 67% of copper alloy grades. Elongation at break is 5% and the elastic modulus is 117 GPa (17 Msi). TP2-H06 has a density of 8.94 g/cm³ (0.323 lb/in³), heavier than 90% of copper alloy grades. It melts at 1,083°C (1,981 °F). H58 is the default condition FabDigit quotes; H06 is available on request or by drawing note.
Advantages
- Readily welded — 75/100, better than 89% of copper alloy grades
- Conducts heat well — 330 W/m·K (190.7 BTU/hr·ft·°F), better than 85% of copper alloy grades
- High electrical conductivity — 83 % IACS, better than 85% of copper alloy grades
Limitations
- Limited service temperature — 150°C (302 °F), worse than 96% of copper alloy grades
- Limited ductility — 5%, worse than 93% of copper alloy grades
TP2-H06 properties
Typical room-temperature values for TP2-H06; 19 are specific to this condition. Other listed values are TP2 reference data and may not represent this condition. Bars are the position among copper alloy grades.
Physical3
TP2-H06 has a density of 8.94 g/cm³ (0.323 lb/in³), heavier than 90% of copper alloy grades. It melts at 1,083°C (1,981 °F).
Mechanical13
TP2-H06 has a yield strength of 315 MPa (45.7 ksi) and a tensile strength of 350 MPa (50.8 ksi) — stronger than 67% of copper alloy grades. Elongation at break is 5% and the elastic modulus is 117 GPa (17 Msi).
Thermal6
TP2-H06 is rated for continuous service to 150°C (302 °F). It conducts heat at 330 W/m·K (190.7 BTU/hr·ft·°F), better than 85% of copper alloy grades. Thermal expansion is 17.6 µm/m·K (9.78 µin/in·°F).
Electrical3
TP2-H06 conducts electricity at 83 % IACS, better than 85% of copper alloy grades.
Chemical & Environmental3
Corrosion resistance is good (68/100), better than 69% of copper alloy grades.
Sustainability4
Producing a kilogram of TP2-H06 takes about 55 MJ of energy and emits 3.8 kg of CO₂ — less than 72% of copper alloy grades. Typical recycled content is 40%.
Manufacturability8
TP2-H06's machinability is poor (30/100, worse than 67% of copper alloy grades); weldability very good (75/100); formability poor (30/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with TP2-H06
Is TP2 easy to machine?
Gummy and low-rated (~20 % of AISI 1212): use sharp positive-rake tools, high speed, generous cutting fluid and chip breaking; choose C14500 or free-cutting brass for screw-machine work.
Can TP2 be welded?
Phosphorus deoxidation means no hydrogen embrittlement — GTAW/GMAW with ERCu filler, preheat 200–400 °C for sections above ~3 mm; brazing with BCuP filler needs no flux on copper-to-copper joints.
Can TP2 be formed, bent or molded?
Excellent cold formability in O60 (bend, flare, expand, deep draw); intermediate anneals at 400–600 °C restore ductility after ~50 % reduction; hot working 750–950 °C.
What surface finishes work on TP2?
Polishes to a bright finish and takes tin, nickel or silver plating well; not anodizable — protect with lacquer or accept natural patina, and avoid ammonia-based cleaners.
TP2 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 deoxidizer — sets the 80–90 % IACS conductivity | 0.02 – 0.04 | 0.03 |
| BiGB/T 5231 impurity limit | ≤ 0 | — |
| PbGB/T 5231 impurity limit | ≤ 0.01 | — |
| SbGB/T 5231 impurity limit | ≤ 0 | — |
| FeGB/T 5231 impurity limit | ≤ 0.01 | — |
| SGB/T 5231 impurity limit | ≤ 0.01 | — |
| CuCu + Ag, phosphorus not counted as impurity | ≥ 99.9 (balance) | — |
TP2-H06 — frequently asked
What is TP2-H06 used for?
TP2-H06 is typically used for air-conditioning tube, plumbing tube, heat exchangers and brazed fittings. In short: standard brazeable copper tube; no hydrogen embrittlement; lower conductivity than ETP.
What is the yield strength of TP2-H06?
TP2-H06 has a typical yield strength of 315 MPa (45.7 ksi) and a tensile strength of 350 MPa (50.8 ksi) — stronger than 67% of copper alloy grades. Strength varies by condition: see the 12 listed tempers.
Is TP2-H06 easy to machine?
Not especially — machinability is rated poor (30/100, worse than 67% of copper alloy grades). Gummy and low-rated (~20 % of AISI 1212): use sharp positive-rake tools, high speed, generous cutting fluid and chip breaking; choose C14500 or free-cutting brass for screw-machine work.
Can TP2-H06 be welded?
Yes — weldability is rated very good (75/100). Phosphorus deoxidation means no hydrogen embrittlement — GTAW/GMAW with ERCu filler, preheat 200–400 °C for sections above ~3 mm; brazing with BCuP filler needs no flux on copper-to-copper joints.
What surface finishes work on TP2-H06?
Polishes to a bright finish and takes tin, nickel or silver plating well; not anodizable — protect with lacquer or accept natural patina, and avoid ammonia-based cleaners.
Can TP2-H06 be formed, bent or molded?
Excellent cold formability in O60 (bend, flare, expand, deep draw); intermediate anneals at 400–600 °C restore ductility after ~50 % reduction; hot working 750–950 °C.
What is the maximum service temperature of TP2-H06?
TP2-H06 is rated for continuous use to about 150°C (302 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between TP2-H58 and TP2-O60?
H58 is the default condition — the default stocked condition: cold-drawn straight lengths of TP2 water/gas/medical-gas tube — rigid, pressure-rated, brazed rather than bent. O60: fully annealed coil tube and sheet for maximum ductility — ACR coils, flare fittings, deep drawing and spinning. Yield strength is 250 MPa in H58 versus 70 MPa in O60.
Sources
- ASTM B88 / B75 / B280 — seamless copper water, general and ACR tube — ASTM International (2022)
- JIS H3300 C1220 copper tube — JSA (2018)
- C12200 alloy datasheet (DHP copper) — Copper Development Association (2023)
- ASM Handbook Vol.2 — Properties of Copper and Copper Alloys — ASM International (1990)
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.