Chemical composition
Nominal: mid-range where both limits are given, the cap where only a maximum is, balance takes the remainder. Exact specified ranges below.
| Element | Name | Content % | |
|---|---|---|---|
| Main elements3 elements | |||
| Cu | Copper (incl. silver) | Bal. | |
| Ni | Nickel (incl. cobalt) | 9 – 11% | |
| Fe | Iron | 1 – 1.8% | |
| Element | Name | Content % | |
|---|---|---|---|
| Minor & residual3 elements | |||
| Mn | Manganese | ≤ 1% | |
| Zn | Zinc | ≤ 1% | |
| Pb | Lead | ≤ 0.05% | |
Mechanical minima by form
Guaranteed values differ by form, size and delivery condition; quotations confirm the specification, form, size and condition.
| Form | Condition | Rm MPa | Rp0.2 MPa | A ≥ % | Other requirements and notes |
|---|---|---|---|---|---|
| Bar and forgings | |||||
| Bar and rod | O60 or M30 | ≥ 260 (38 ksi) | ≥ 105 (15 ksi) | ≥ 30 | |
| Bar and rod | H04 hard (rounds, polygons and squares ≤9.5 mm) | ≥ 415 (60 ksi) | ≥ 260 (38 ksi) | ≥ 10 | |
| Plate, sheet and strip | |||||
| Pressure-vessel plate and tubesheet | M20/M10/O20/O25 | ≥ 275 (40 ksi) | ≥ 105 (15 ksi) | ≥ 30 | |
| Tube and pipe | |||||
| Straight seamless tube | O60, soft annealed | ≥ 260 (38 ksi) | ≥ 90 (13 ksi) | — | |
| Straight seamless tube | H55, light drawn | ≥ 310 (45 ksi) | ≥ 240 (35 ksi) | — | |
| Straight seamless tube | H80, hard drawn | ≥ 345 (50 ksi) | ≥ 275 (40 ksi) | — | |
| Straight condenser and heat-exchanger tube | Annealed at O61 | ≥ 275 (40 ksi) | ≥ 105 (15 ksi) | — | |
| Straight condenser and heat-exchanger tube | H55, light drawn | ≥ 310 (45 ksi) | ≥ 240 (35 ksi) | — | |
| U-bend condenser and heat-exchanger tube | Annealed at O61 | ≥ 275 (40 ksi) | ≥ 105 (15 ksi) | — | |
| U-bend condenser and heat-exchanger tube | H55, light drawn | ≥ 310 (45 ksi) | ≥ 240 (35 ksi) | — | |
| Seamless heat-exchanger tubes (EN 12451) | R290 (annealed) | ≥ 290 | ≥ 90 | ≥ 30 | Drift expansion ≥ 30 %; may also be ordered by hardness: H075, 75–105 HV. |
| Seamless heat-exchanger tubes (EN 12451) | R310 | ≥ 310 | ≥ 220 | ≥ 12 | Drift expansion ≥ 20 %; may also be ordered by hardness: H105, 105–150 HV. |
| Seamless heat-exchanger tubes (EN 12451) | R480 | ≥ 480 | ≥ 400 | ≥ 8 | Drift expansion ≥ 8 %; may also be ordered by hardness: H150, ≥ 150 HV. |
| Several forms | |||||
| Plate, sheet, strip and rolled rod | M20, hot-rolled | 275 – 425 | — | — | |
Where this grade is recommended
Matched in 6 service conditions; ranks and scores computed from the condition-scoring matrix.
| Service condition | Industry | Temperature | Rank | Score |
|---|---|---|---|---|
| Seawater piping & HX | Marine & Offshore | ≤ 40 °C | 1 / 11 | 94 |
| Ballast & tank systems | Marine & Offshore | ≤ 40 °C | 1 / 10 | 90 |
| Firewater & deluge | Marine & Offshore | ≤ 40 °C | 1 / 7 | 90 |
| Aquaculture & harbour works | Marine & Offshore | Seawater ≤ 40 °C | 2 / 8 | 90 |
| Seawater cooling | Oil & Gas | ≤ 50 °C | 3 / 6 | 90 |
| Condensers & cooling water | Power & Nuclear | ≤ 50 °C | 3 / 5 | 88 |
Designations & equivalents
| UNS | C70600 |
| W.Nr. (Germany) | 2.0872 |
| EN material number (copper) | CW352H |
| EN designation | CuNi10Fe1Mn |
| Trade name(s) | 90/10 CuNi / CuNi10Fe |
| ASTM / AISI | B111 / B122 / B151 / B171 / B395 / B466 |
| JIS (Japan) | C7060 |
Cross-references are common near-equivalents for search and shortlisting; substitution across standards requires clause-by-clause verification. All grades in one cross-reference table →
Applicable standards
11 specifications. Name the standard and its edition on the order.
Guaranteed values and required tests differ between specifications — see Mechanical minima by form for the figures per form.
Frequently asked questions
What is B10 (BFe10-1-1)?
B10 (BFe10-1-1) — Copper. 90/10 copper-nickel — mainstay of seawater piping
What is the maximum service temperature of B10?
Typically about 250 °C; the practical limit depends on media, stress and design life — acceptance per the governing standard.
What is the tensile strength of B10?
The specified minimum tensile strength is 310 MPa for the main product form. Minima for other forms and sizes are listed under "Mechanical minima by form" on this page.
Which standards cover B10?
ASTM B466/B466M, ASTM B111/B111M, ASTM B395/B395M, ASTM B122/B122M, ASTM B151/B151M, ASTM B171/B171M, EN 12163 (copper alloy rod), EN 12449 (seamless copper tubes), EN 12451 (seamless copper tubes for heat exchangers), EN 1652 (copper plate, sheet and strip), EN 1653 (copper plate for boilers and pressure vessels)
Where is B10 typically used?
Seawater piping & HX (Marine & Offshore); Ballast & tank systems (Marine & Offshore); Firewater & deluge (Marine & Offshore); Aquaculture & harbour works (Marine & Offshore)
In which forms is B10 available?
Tube, plate, strip, bar, forgings, wire and other forms — sizes and delivery condition confirmed per order, with EN 10204 3.1 / 3.2 certification.
Same series
Download PDF datasheet
This grade’s datasheet as an A4 PDF — for filing, printing or forwarding to colleagues.
Download PDF datasheetSupply & enquiry
Tube & pipeφ1 – 219 × 0.25 – 25 mm
Plate4.76 – 80 mm
Barφ8 – 300 mm
Wire & filler metalsφ0.01 – 8 mmFor this grade we can supply, against your service conditions:
- Tube, plate, strip, bar, forgings, wire and more — with size range and lead time
- Chemistry and mechanical test report (EN 10204 3.1 / 3.2)
- Like-for-like alternatives and selection advice
- Applicable standards and inspection scope
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