Stainless steel
15-5 PH
Manufacturer or standards-body identification; product values do not apply to every form or condition.
Identity / state reference
What distinguishes this material
N701 identifies 15-5PH as EN 1.4545; it must not inherit the EN designation of a different PH stainless alloy.
- Designation in this reference
- 15-5 PH / UNS S15500
- Forms covered by the sources
- N701 bars, wire and forgings.
- States to distinguish or confirm
- Solution-annealed product; record the required subsequent age-hardening condition.
- Temperature and exposure
- No universal service-temperature limit or room-temperature property set is assigned. Use the cited product document and the purchase certificate.
Other search names in these sources
UNS S15500 · 1.4545
Read the scope above: a source’s related product name is not a blanket interchangeability statement.
Property evidence for a stated condition
No condition-specific numerical table is reproduced here
The linked sources establish the identity and the stated product/state scope. Obtain the row for your actual form, section, treatment and test conditions before adopting strength, hardness or a thermal limit.
Resolve these conditions next
- What product standard, edition and complete grade are on the material certificate?
- What product form, section size and delivery/heat-treatment condition will be machined?
For machining, take the exact grade, supplied condition and measured hardness where applicable into the tool maker’s application data. A generic material-family speed is not a substitute for an operation and tool-specific recommendation.
Sources and what they establish
Reviewed 23 October 2026. A source’s publication date and the review date are different. The scope below identifies the fields checked.
BÖHLER N701
15-5 PH, S15500, 1.4545; solution-annealed products and supplier VAR route.
BÖHLER N701 ↗Source identity, a named product example and a supplied-batch certificate are different evidence. Cross-standard similarity does not approve substitution.
Corrections from the previous article
- Correct the legacy 1.4540/X5CrNiCuNb16-4 mapping: the cited 15-5PH product is 1.4545/X5CrNiCu15-5.
- Withdraw the legacy generic hardness (277–363 HB (H900)) and tensile-strength (1,310 MPa (190 ksi)) pair: the old page does not establish a matching product, heat treatment, section and test source.
- Remove the unsupported cutting-speed table and machinability percentage; select tooling only after the actual material condition is known.
Other references in Stainless steel
Related references, not equivalent substitutes.