Copper Alloy C14200-H55
Temper
UNS C14200 · ASTM B111
H55 = light drawn
Lightly cold-drawn tube: higher strength and better handling stiffness while still bendable and expandable.
Values for the H55 condition
Other C14200 tempers and conditions
C14200 is listed in 9 conditions; see the grade overview at C14200.
Compare all 9 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
OS050Default Annealed to 0.050 mm grain size | Standard soft condenser/heat-exchanger tube temper — maximum ductility for tube rolling and U-bending. | 69 | 225 | 47 | 40 HB | 40 % IACS |
Annealed | General soft-annealed condition for tube bending, expanding into tubesheets and deep forming. | 70 | 225 | 45 | 42 HB | 40 % IACS |
Annealed to 0.025 mm grain size | Fine-grain annealed temper for condenser tube needing soft forming with a smooth, non-orange-peel surface. | 76 | 230 | 45 | 45 HB | 40 % IACS |
Quarter hard | Lightly rolled strip/sheet where some springiness is wanted but forming is still required. | 200 | 260 | 25 | 70 HB | 40 % IACS |
H55This page Light drawn | Lightly cold-drawn tube: higher strength and better handling stiffness while still bendable and expandable. | 220 | 275 | 25 | 75 HB | 40 % IACS |
Drawn, general purpose | Mid cold-work drawn tube supplied where neither soft nor fully hard tube is specified. | 250 | 305 | 15 | 85 HB | 40 % IACS |
Half hard | Half-hard strip/plate balancing strength and moderate bend formability. | 250 | 295 | 14 | 85 HB | 40 % IACS |
Full hard | Maximum cold-worked strength and stiffness for flat products; minimal bending capability. | 310 | 350 | 6 | 95 HB | 39 % IACS |
Hard drawn | Fully hard-drawn tube for maximum pressure rating and rigidity where no severe bending is required. | 345 | 380 | 8 | 100 HB | 39 % IACS |
What is C14200-H55?
C14200-H55 is C14200 in the H55 temper — lightly cold-drawn tube: higher strength and better handling stiffness while still bendable and expandable. C14200-H55 has a yield strength of 220 MPa (31.9 ksi) and a tensile strength of 275 MPa (39.9 ksi) — weaker than 51% of copper alloy grades. Elongation at break is 25% and the elastic modulus is 117 GPa (17 Msi). C14200-H55 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). OS050 is the default condition FabDigit quotes; H55 is available on request or by drawing note.
Advantages
- Readily welded — 70/100, better than 85% of copper alloy grades
- Forms and bends easily — 75/100, better than 82% of copper alloy grades
- Conducts heat well — 190 W/m·K (109.8 BTU/hr·ft·°F), better than 77% of copper alloy grades
- High service temperature — 260°C (500 °F), better than 75% of copper alloy grades
C14200-H55 properties
Typical room-temperature values for C14200-H55; 11 are specific to this condition. Other listed values are C14200 reference data and may not represent this condition. Bars are the position among copper alloy grades.
Physical3
C14200-H55 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
C14200-H55 has a yield strength of 220 MPa (31.9 ksi) and a tensile strength of 275 MPa (39.9 ksi) — weaker than 51% of copper alloy grades. Elongation at break is 25% and the elastic modulus is 117 GPa (17 Msi).
Thermal6
C14200-H55 is rated for continuous service to 260°C (500 °F). It conducts heat at 190 W/m·K (109.8 BTU/hr·ft·°F), better than 77% of copper alloy grades. Thermal expansion is 17.7 µm/m·K (9.83 µin/in·°F).
Electrical3
C14200-H55 conducts electricity at 40 % IACS, better than 74% of copper alloy grades.
Chemical & Environmental3
Corrosion resistance is good (68/100), better than 69% of copper alloy grades.
Sustainability4
Producing a kilogram of C14200-H55 takes about 58 MJ of energy and emits 3.8 kg of CO₂ — more than 61% of copper alloy grades. Typical recycled content is 35%.
Manufacturability7
C14200-H55's machinability is poor (30/100, worse than 67% of copper alloy grades); weldability very good (70/100); formability very good (75/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with C14200-H55
Is C14200 easy to machine?
Gummy like all high-purity copper (≈20% of AISI 1212) — use sharp positive-rake tools, high speed, generous coolant; cold-worked tempers chip better than annealed.
Can C14200 be welded?
P-deoxidized and oxygen-free of hydrogen embrittlement risk; GTAW/GMAW with ERCu or Si-bronze filler and preheat on heavy sections; brazing and soldering are excellent, and As does not impair joints.
Can C14200 be formed, bent or molded?
Excellent cold formability in OS tempers (U-bending, tube expansion, roll-in to tubesheets); interanneal at 400–600 °C after ~50% reduction — arsenic raises the recrystallisation temperature versus DHP copper.
What surface finishes work on C14200?
Not anodizable; specify pickling/bright dip, mechanical polishing, tin or nickel plating, or benzotriazole passivation to slow tarnishing.
C14200 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 |
|---|---|---|
| Asarsenic addition for corrosion & elevated-temperature strength | 0.15 – 0.5 | 0.3 |
| Presidual deoxidizing phosphorus | 0.02 – 0.04 | 0.03 |
| CuCu + Ag, remainder; per UNS C14200 / ASTM B111 | ≥ 99.4 (balance) | — |
C14200-H55 — frequently asked
What is C14200-H55 used for?
C14200-H55 is typically used for condenser and heat exchanger tube, boiler tube and marine tubing. In short: arsenical condenser-tube copper; strength retained to 300 °C; excellent tube formability.
What is the yield strength of C14200-H55?
C14200-H55 has a typical yield strength of 220 MPa (31.9 ksi) and a tensile strength of 275 MPa (39.9 ksi) — weaker than 51% of copper alloy grades. Strength varies by condition: see the 9 listed tempers.
Is C14200-H55 easy to machine?
Not especially — machinability is rated poor (30/100, worse than 67% of copper alloy grades). Gummy like all high-purity copper (≈20% of AISI 1212) — use sharp positive-rake tools, high speed, generous coolant; cold-worked tempers chip better than annealed.
Can C14200-H55 be welded?
Yes — weldability is rated very good (70/100). P-deoxidized and oxygen-free of hydrogen embrittlement risk; GTAW/GMAW with ERCu or Si-bronze filler and preheat on heavy sections; brazing and soldering are excellent, and As does not impair joints.
What surface finishes work on C14200-H55?
Not anodizable; specify pickling/bright dip, mechanical polishing, tin or nickel plating, or benzotriazole passivation to slow tarnishing.
Can C14200-H55 be formed, bent or molded?
Excellent cold formability in OS tempers (U-bending, tube expansion, roll-in to tubesheets); interanneal at 400–600 °C after ~50% reduction — arsenic raises the recrystallisation temperature versus DHP copper.
What is the maximum service temperature of C14200-H55?
C14200-H55 is rated for continuous use to about 260°C (500 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between C14200-OS050 and C14200-H80?
OS050 is the default condition — standard soft condenser/heat-exchanger tube temper — maximum ductility for tube rolling and U-bending. H80: fully hard-drawn tube for maximum pressure rating and rigidity where no severe bending is required. Yield strength is 69 MPa in OS050 versus 345 MPa in H80.
Sources
- ASTM B111/B111M — Copper and Copper-Alloy Seamless Condenser Tubes and Ferrule Stock — ASTM International (2021)
- CDA/UNS Alloy Data Sheet C14200 (Phosphorized Arsenical Copper, DPA) — Copper Development Association (2023)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys and Special-Purpose Materials — ASM International (1990)
- ASM Handbook Vol. 13B — Corrosion: Materials (copper alloys in water/steam) — ASM International (2005)
- GB/T 17791 / GB/T 1527 (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.