Precious Metal Pure Pd-H01
Supply condition
H01 = quarter hard
Choose when formed contact springs need slightly higher yield strength but still substantial bend ductility.
Values for the H01 condition
Other Pure Pd tempers and conditions
Pure Pd is listed in 4 conditions; see the grade overview at Pure Pd.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
ODefault Annealed | Choose for deep drawing, bending, wire bonding and clad/bimetal contact rivets where maximum ductility is needed. | 55 | 180 | 32 | 38 HB | 16 % IACS |
H01This page Quarter hard | Choose when formed contact springs need slightly higher yield strength but still substantial bend ductility. | 150 | 235 | 15 | 62 HB | 15.8 % IACS |
Half hard | The usual stocked temper for stamped relay contacts and contact springs needing a balance of strength and formability. | 215 | 285 | 8 | 84 HB | 15.6 % IACS |
Full hard | Choose for maximum hardness, wear resistance and spring force in sliding contacts, brushes and probe wire; very limited bending. | 300 | 340 | 3 | 106 HB | 15.4 % IACS |
What is Pure Pd-H01?
Pure Pd-H01 is Pure Pd supplied in the H01 condition — choose when formed contact springs need slightly higher yield strength but still substantial bend ductility. Pure Pd-H01 has a yield strength of 150 MPa (21.8 ksi) and a tensile strength of 235 MPa (34.1 ksi) — weaker than 68% of precious metal grades. Elongation at break is 15% and the elastic modulus is 121 GPa (17.5 Msi). Pure Pd-H01 has a density of 12.02 g/cm³ (0.434 lb/in³), heavier than 67% of precious metal grades. It melts at 1,554°C (2,829 °F). O is the default condition FabDigit quotes; H01 is available on request or by drawing note.
Advantages
- Readily welded — 82/100, better than 89% of precious metal grades
- Good corrosion resistance — 95/100, better than 82% of precious metal grades
- Stiff — 121 GPa (17.5 Msi), better than 80% of precious metal grades
Limitations
- Limited ductility — 15%, worse than 86% of precious metal grades
- High embodied carbon — 12,000 kg CO₂/kg, worse than 76% of precious metal grades
Pure Pd-H01 properties
Typical room-temperature values for Pure Pd-H01; 12 are specific to this condition. Other listed values are Pure Pd reference data and may not represent this condition. Bars are the position among precious metal grades.
Physical3
Pure Pd-H01 has a density of 12.02 g/cm³ (0.434 lb/in³), heavier than 67% of precious metal grades. It melts at 1,554°C (2,829 °F).
Mechanical11
Pure Pd-H01 has a yield strength of 150 MPa (21.8 ksi) and a tensile strength of 235 MPa (34.1 ksi) — weaker than 68% of precious metal grades. Elongation at break is 15% and the elastic modulus is 121 GPa (17.5 Msi).
Thermal6
Pure Pd-H01 is rated for continuous service to 250°C (482 °F). It conducts heat at 71.8 W/m·K (41.5 BTU/hr·ft·°F), worse than 60% of precious metal grades. Thermal expansion is 11.8 µm/m·K (6.56 µin/in·°F).
Electrical3
Pure Pd-H01 conducts electricity at 15.8 % IACS, worse than 62% of precious metal grades.
Chemical & Environmental3
Corrosion resistance is excellent (95/100), better than 82% of precious metal grades.
Sustainability3
Producing a kilogram of Pure Pd-H01 takes about 120,000 MJ of energy and emits 12,000 kg of CO₂ — more than 70% of precious metal grades. Typical recycled content is 28%.
Manufacturability8
Pure Pd-H01's machinability is fair (42/100, worse than 53% of precious metal grades); weldability very good (82/100); formability very good (80/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with Pure Pd-H01
Is Pure Pd easy to machine?
Soft and gummy — use sharp, high-rake carbide or diamond tools, light depths, high speed and copious lubrication; collect all swarf for refining.
Can Pure Pd be welded?
Resistance, laser and micro-TIG weld readily in inert gas; strictly avoid hydrogen-bearing atmospheres and sulphur/lead contamination which embrittle the metal.
Can Pure Pd be formed, bent or molded?
Excellent cold formability in the annealed temper (deep drawing, coining, fine wire drawing); anneal at 800–1000 °C in inert or slightly oxidising atmosphere between heavy reductions.
What surface finishes work on Pure Pd?
Takes a bright mirror polish that does not tarnish; often used as a plated or clad contact layer itself, and can be electroplated with Au flash to suppress frictional polymer film formation.
Pure Pd 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.
| Element | Spec limit (wt %) |
|---|---|
| Pttypical single-impurity limit | ≤ 0.05 |
| Rh+Ir+Ruother PGM total | ≤ 0.05 |
| Ag | ≤ 0.02 |
| Cu | ≤ 0.02 |
| Fe | ≤ 0.02 |
| Pb | ≤ 0.01 |
| Total impuritiessum of all non-Pd elements | ≤ 0.1 |
| Pdrefined palladium, ASTM B589 grade 99.9 min | ≥ 99.9 (balance) |
Pure Pd-H01 — frequently asked
What is Pure Pd-H01 used for?
Pure Pd-H01 is typically used for reed relay contacts, precision telecom switch contacts and electroplating anodes. In short: tarnish-free noble contact; highest formability in family; soft, hydrogen-sensitive metal.
What is the yield strength of Pure Pd-H01?
Pure Pd-H01 has a typical yield strength of 150 MPa (21.8 ksi) and a tensile strength of 235 MPa (34.1 ksi) — weaker than 68% of precious metal grades. Strength varies by condition: see the 4 listed tempers.
Is Pure Pd-H01 easy to machine?
Not especially — machinability is rated fair (42/100, worse than 53% of precious metal grades). Soft and gummy — use sharp, high-rake carbide or diamond tools, light depths, high speed and copious lubrication; collect all swarf for refining.
Can Pure Pd-H01 be welded?
Yes — weldability is rated very good (82/100). Resistance, laser and micro-TIG weld readily in inert gas; strictly avoid hydrogen-bearing atmospheres and sulphur/lead contamination which embrittle the metal.
What surface finishes work on Pure Pd-H01?
Takes a bright mirror polish that does not tarnish; often used as a plated or clad contact layer itself, and can be electroplated with Au flash to suppress frictional polymer film formation.
Can Pure Pd-H01 be formed, bent or molded?
Excellent cold formability in the annealed temper (deep drawing, coining, fine wire drawing); anneal at 800–1000 °C in inert or slightly oxidising atmosphere between heavy reductions.
What is the maximum service temperature of Pure Pd-H01?
Pure Pd-H01 is rated for continuous use to about 250°C (482 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between Pure Pd-O and Pure Pd-H04?
O is the default condition — choose for deep drawing, bending, wire bonding and clad/bimetal contact rivets where maximum ductility is needed. H04: choose for maximum hardness, wear resistance and spring force in sliding contacts, brushes and probe wire; very limited bending. Yield strength is 55 MPa in O versus 300 MPa in H04.
Sources
- ASTM B589 — Standard Specification for Refined Palladium — ASTM International (2020)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys and Special-Purpose Materials (Precious Metals) — ASM International (1990)
- ASM Handbook Vol. 13B — Corrosion: Materials (Noble Metals) — ASM International (2005)
- CRC Handbook of Chemistry and Physics — physical properties of palladium — CRC Press (2023)
- Precious metal contact material data (Pd and Pd alloys) — Johnson Matthey / Heraeus (2022)
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.