Copper Alloy C19210
UNS C19210
C19210 is a high-conductivity iron-phosphorus copper from the wrought high-copper family (C10000-C19999), where small Fe and P additions raise strength without giving up much conductivity.
Reference datasheet — C19210 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 H04 condition
C19210 tempers and conditions
C19210 is supplied in 9 conditions, soft to hard. H04 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 | Pick for deep-formed or severely bent parts and for maximum conductivity. | 80 | 240 | 38 | 15 HRB | 92 % IACS |
Quarter hard | Pick when moderate strength must be combined with tight-radius forming. | 225 | 280 | 15 | 90 HB | 91 % IACS |
Half hard | The standard compromise temper for stamped terminals and lead frames needing 90° bends. | 285 | 320 | 9 | 104 HB | 90 % IACS |
Three-quarter hard | Intermediate step when H02 is too soft but H04 cracks on the bend line. | 315 | 345 | 7 | 112 HB | 90 % IACS |
Stress-relief / stabilizing anneal after cold rolling | Pick when flatness and dimensional stability of stamped lead frames through die-attach bakes are critical. | 340 | 360 | 6 | 112 HB | 91 % IACS |
H04Default Full hard | Default stocked lead-frame / terminal strip temper: best strength-to-formability balance at 90 % IACS. | 345 | 370 | 5 | 60 HRB | 90 % IACS |
Extra hard | Pick for flat stamped contacts needing higher yield with only gentle forming. | 380 | 400 | 4 | 126 HB | 89 % IACS |
Spring hard | Pick for flat springs and pressure contacts where conductivity matters more than relaxation life. | 410 | 430 | 3 | 134 HB | 88 % IACS |
Extra spring hard | Maximum cold-rolled strength for thin flat springs; essentially no forming capability across the grain. | 445 | 460 | 2 | 142 HB | 88 % IACS |
What is C19210?
C19210 is a high-conductivity iron-phosphorus copper from the wrought high-copper family (C10000-C19999), where small Fe and P additions raise strength without giving up much conductivity. It is a low-cost electronic lead-frame and terminal material, supplied as cold-rolled strip, coil and foil in tempers from O60 through H10 and TR, with 90 % IACS, 360 W/m·K and 345 MPa yield in the default condition. Elongation is only 5 % there and service is limited to about 200 °C, so severe forming calls for a softer temper. C19400 is the alternative when strength matters more than conductivity. C19210 has a density of 8.91 g/cm³ (0.322 lb/in³), heavier than 80% of copper alloy grades. It melts at 1,080°C (1,976 °F). C19210 has a yield strength of 345 MPa (50 ksi) and a tensile strength of 370 MPa (53.7 ksi) — stronger than 73% of copper alloy grades. Elongation at break is 5% and the elastic modulus is 121 GPa (17.5 Msi).
What is C19210 used for?
- semiconductor lead frames
- electrical terminals
- connectors
- relay parts
Advantages
- Conducts heat well — 360 W/m·K (208 BTU/hr·ft·°F), better than 90% of copper alloy grades
- High electrical conductivity — 90 % IACS, better than 87% of copper alloy grades
- Forms and bends easily — 70/100, better than 80% of copper alloy grades
Limitations
- Limited ductility — 5%, worse than 93% of copper alloy grades
- Difficult to machine — 25/100, worse than 86% of copper alloy grades
C19210 properties
Typical room-temperature values for C19210-H04; bars are the position among copper alloy grades.
Physical3
C19210 has a density of 8.91 g/cm³ (0.322 lb/in³), heavier than 80% of copper alloy grades. It melts at 1,080°C (1,976 °F).
Mechanical11
C19210 has a yield strength of 345 MPa (50 ksi) and a tensile strength of 370 MPa (53.7 ksi) — stronger than 73% of copper alloy grades. Elongation at break is 5% and the elastic modulus is 121 GPa (17.5 Msi).
Thermal6
C19210 is rated for continuous service to 200°C (392 °F). It conducts heat at 360 W/m·K (208 BTU/hr·ft·°F), better than 90% of copper alloy grades. Thermal expansion is 17.6 µm/m·K (9.78 µin/in·°F).
Electrical3
C19210 conducts electricity at 90 % IACS, better than 87% of copper alloy grades.
Chemical & Environmental3
Corrosion resistance is good (55/100), worse than 86% of copper alloy grades.
Sustainability4
Producing a kilogram of C19210 takes about 58 MJ of energy and emits 3.6 kg of CO₂ — more than 61% of copper alloy grades. Typical recycled content is 25%.
Manufacturability7
C19210's machinability is poor (25/100, worse than 86% of copper alloy grades); weldability fair (45/100); formability very good (70/100).
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. C19210 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with C19210
Is C19210 easy to machine?
Gummy like pure copper (≈20 % of AISI 1212): use sharp positive-rake tools, high speed, light feed and flood coolant; hard tempers machine and blank cleaner than annealed.
Can C19210 be welded?
Resistance, laser and ultrasonic joining work well on thin strip; fusion welding is difficult because of the very high thermal conductivity, and phosphorus-bearing filler is preferred.
Can C19210 be formed, bent or molded?
Excellent progressive-die stamping and bending; bend H04 with the fold across the rolling direction and anneal (350–500 °C) between severe forming steps.
C19210 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 |
|---|---|---|
| Fe | 0.05 – 0.15 | 0.1 |
| P | 0.03 – 0.04 | 0.03 |
| Pbimpurity limit | ≤ 0.03 | |
| Znimpurity limit | ≤ 0.05 | |
| other (each)residual elements | ≤ 0.03 | |
| Cu99.8 % min including Ag | balance |
What surface finishes work on C19210?
Solders and silver/tin/nickel-plates readily after acid pickling; no anodizing — apply an antitarnish or plated layer since bare surfaces oxidize during bake cycles.
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 C19210 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- Also called
- CDA 192
How much does C19210 cost?
C19210 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.
C19210 — frequently asked
What is C19210 used for?
C19210 is typically used for semiconductor lead frames, electrical terminals, connectors and relay parts. In short: 90 % IACS lead-frame copper; low-cost stamping strip; conductivity before strength.
What is the yield strength of C19210?
C19210 has a typical yield strength of 345 MPa (50 ksi) and a tensile strength of 370 MPa (53.7 ksi) — stronger than 73% of copper alloy grades. Strength varies by condition: see the 9 listed tempers.
Is C19210 easy to machine?
Not especially — machinability is rated poor (25/100, worse than 86% of copper alloy grades). Gummy like pure copper (≈20 % of AISI 1212): use sharp positive-rake tools, high speed, light feed and flood coolant; hard tempers machine and blank cleaner than annealed.
Can C19210 be welded?
With care — weldability is rated fair (45/100). Resistance, laser and ultrasonic joining work well on thin strip; fusion welding is difficult because of the very high thermal conductivity, and phosphorus-bearing filler is preferred.
What surface finishes work on C19210?
Solders and silver/tin/nickel-plates readily after acid pickling; no anodizing — apply an antitarnish or plated layer since bare surfaces oxidize during bake cycles.
Can C19210 be formed, bent or molded?
Excellent progressive-die stamping and bending; bend H04 with the fold across the rolling direction and anneal (350–500 °C) between severe forming steps.
What is the maximum service temperature of C19210?
C19210 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 C19210-H04 and C19210-O60?
H04 is the default condition — default stocked lead-frame / terminal strip temper: best strength-to-formability balance at 90 % IACS. O60: pick for deep-formed or severely bent parts and for maximum conductivity. Yield strength is 345 MPa in H04 versus 80 MPa in O60.
How much does C19210 cost?
C19210 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
- CDA Alloy Datasheet C19210 (Cu-Fe-P) — Copper Development Association (2023)
- ASTM B888 / B888M — Copper Alloy Strip for Use in Manufacture of Electrical Connectors or Lead Frames — ASTM International (2020)
- ASTM B601 — Temper Designations for Copper and Copper Alloys — ASTM International (2019)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys — ASM International (1990)
- GB/T 2059 / GB/T 2040 — SAC (2017)
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.