{"id":4284,"date":"2026-07-15T08:05:35","date_gmt":"2026-07-15T06:05:35","guid":{"rendered":"https:\/\/deltar.it\/nichelatura-chimica-alto-fosforo\/"},"modified":"2026-09-02T15:43:56","modified_gmt":"2026-09-02T13:43:56","slug":"high-phosphorus-electroless-nickel-plating","status":"publish","type":"page","link":"https:\/\/deltar.it\/en\/high-phosphorus-electroless-nickel-plating\/","title":{"rendered":"High-phosphorus electroless nickel plating (ENP 1012)"},"content":{"rendered":"
[vc_row full_width=”stretch_row_content” content_placement=”bottom” full_height=”yes” columns_placement=”bottom” equal_height=”yes” wpex_bg_color=”accent-alt” el_class=”dt-container dt-inner-banner” css=”.vc_custom_1784095726074{background-image: url(https:\/\/deltar.it\/wp-content\/uploads\/2026\/07\/nichelatura-fosforo-banner.jpg?id=2510) !important;background-position: center !important;background-repeat: no-repeat !important;background-size: cover !important;}” wpex_bg_overlay=”color” wpex_bg_overlay_color=”#00000080″ wpex_bg_overlay_opacity=”1″][vc_column][vc_row_inner content_placement=”bottom” el_class=”pbd100″][vc_column_inner el_class=”fade-up”][vc_column_text css=”” el_class=”dt-label dt-big-label dt-inner-h1″ color=”on-accent” letter_spacing=”10%” font_weight=”700″ text_transform=”uppercase”]\n

High-phosphorus electroless nickel plating (ENP 1012)<\/h1>\n[\/vc_column_text][vc_column_text css=”” el_class=”mtd30 mbd20 mtm20 mbm20 dt-remove-br-md dt-inner-h2″ color=”on-accent”]\n

Maximum anti-corrosion
\nprotection for critical
\nenvironments<\/h2>\n[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row full_width=”stretch_row_content” el_class=”dt-container-w”][vc_column][vc_row_inner content_placement=”top” el_class=”ptd100 pbd100 ptm60 pbm60 dt-about dt-nichelatura-about dt-m-reverse”][vc_column_inner el_class=”fade-up mtm30″ width=”1\/2″]
\"\"<\/div><\/figure>[\/vc_column_inner][vc_column_inner el_class=”fade-up” width=”1\/2″][vc_column_text css=”” color=”#222222″ text_transform=”none” el_class=”dt-h2 dt-remove-br-md ptd20″]\n

High-phosphorus
\nelectroless nickel plating<\/h2>\n[\/vc_column_text][vc_column_text css=”” color=”#353639″ font_size=”d:17px|tp:16px” el_class=”ptd20 ptm15 dt-remove-br-md”]The high-phosphorus electroless nickel plating treatment, indicated as ENP 1012 (compliant with ASTM B733 Type V), is Deltar’s historic specialty: an autocatalytic nickel-phosphorus alloy with a P content \u2265 10.5% by weight.
\nThe ENP process at Deltar has been active since 1974, the year of the first Italian installation carried out in collaboration with IBM and Enthone. The proprietary ENP 1012 formulation, completely non-toxic, was developed in the 1980s and introduced Deltar into the sector of machinery for the food and pharmaceutical industry.
\nIt is the maximum anti-corrosion performance solution: the standard choice when the component must work in aggressive environments (marine, chemical, humid, petroleum) and resist over time without surface degradation.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row full_width=”stretch_row_content” el_class=”dt-sm-container-w” wpex_bg_overlay=”color” wpex_bg_overlay_color=”palette-290″ wpex_bg_overlay_opacity=”80%” css=”.vc_custom_1784096762831{background-image: url(https:\/\/deltar.it\/wp-content\/uploads\/2026\/07\/lalto-fosforo-bg.jpg?id=2520) !important;background-position: center !important;background-repeat: no-repeat !important;background-size: cover !important;}” wpex_bg_position=”left center”][vc_column][vc_row_inner el_class=”ptd100 pbd100 ptm60 pbm60″][vc_column_inner el_class=”fade-up mbm30″ width=”1\/2″][vc_column_text css=”” color=”palette-295″ font_size=”clamp(22px, 2vw, 32px);” font_family=”Barlow” font_weight=”700″ el_class=”mbd10 mbm10 dt-title-min-h dt-inner-section-h2″ line_height=”1.15″]\n

Characteristics of the
\nENP 1012 deposit<\/h2>\n[\/vc_column_text][vc_column_text css=”” color=”palette-295″ font_size=”16px”]The high-phosphorus deposit has an amorphous (non-crystalline)
\nstructure, which is the key to its anti-corrosion performance:<\/p>\n
    \n
  • Amorphous structure free of grain boundaries, which eliminates
    \nthe micrometric porosity typical of crystalline coatings<\/li>\n
  • Documented corrosion resistance >1,000 hours in salt spray
    \n(ASTM B117 test, thickness 30 \u00b5m)<\/li>\n
  • Thickness uniformity guaranteed on all geometries, holes,
    \ncavities and undercuts (absence of the \u201cedge build-up\u201d effect
    \ntypical of electrolytic processes)<\/li>\n
  • \u201cAs deposited\u201d hardness: 500-600 HV<\/li>\n
  • Hardness that can be increased up to about 1000 HV with
    \npost-deposition heat treatment, values comparable to thick
    \nhard chrome plating<\/li>\n
  • Non-toxic deposit, suitable for contact with food<\/li>\n<\/ul>\n[\/vc_column_text][\/vc_column_inner][vc_column_inner el_class=”fade-up mbm30″ width=”1\/2″][vc_column_text css=”” color=”palette-295″ font_size=”clamp(22px, 2vw, 32px);” font_family=”Barlow” font_weight=”700″ el_class=”mbd10 mbm10 dt-title-min-h dt-inner-section-h2″ line_height=”1.15″]\n

    When to choose high phosphorus<\/h2>\n[\/vc_column_text][vc_column_text css=”” color=”palette-295″ font_size=”16px”]High phosphorus is the correct choice when the component must:<\/p>\n
      \n
    • Resist in marine, chemical, petroleum or high-humidity environments<\/li>\n
    • Operate in the presence of acids, saline solutions,
      \natmospheres with H2S<\/li>\n
    • Guarantee long-term anti-corrosion protection, even on limited thicknesses<\/li>\n
    • Comply with international standards for Oil & Gas applications<\/li>\n
    • Be intended for contact with food (food-grade applications)<\/li>\n
    • Work in subsea, offshore, nuclear components where traceability
      \nand reliability are critical<\/li>\n<\/ul>\n

      It is not the first choice when the dominant requirement is pure
      \nmechanical hardness: in that case low-phosphorus ENP 23
      \n\u201cas deposited\u201d offers superior performance.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row full_width=”stretch_row_content”][vc_column][vc_row_inner equal_height=”yes” el_class=”dt-x-full-w”][vc_column_inner el_class=”ptd75 pbd75 ptm60 pbm60″ width=”1\/2″][vc_column_text css=”” el_class=”mbd25 mbm25 fade-up” color=”#171717″]\n

      Typical applications<\/h2>\n[\/vc_column_text][vc_column_text css=”” font_size=”16px” color=”#353639″ el_class=”fade-up” font_weight=”600″]\n
        \n
      • Oil & Gas: valves, actuators, pump bodies, subsea components, valve trim<\/li>\n
      • Chemical and petrochemical: reactors, exchangers, tanks, fittings<\/li>\n
      • Nuclear: components with uniformity and traceability requirements<\/li>\n
      • Aerospace: structural and precision components<\/li>\n
      • Marine and offshore<\/li>\n
      • Pharmaceutical and food: surfaces in contact with products<\/li>\n
      • Defence<\/li>\n<\/ul>\n[\/vc_column_text][\/vc_column_inner][vc_column_inner el_class=”ptd75 pbd75 ptm60 pbm60″ width=”1\/2″][vc_column_text css=”” color=”palette-295″ el_class=”mbd45 mbm45 dt-remove-br-md fade-up”]\n

        Technical reference data<\/h2>\n[\/vc_column_text][vc_column_text css=”” font_size=”16px” color=”palette-295″ el_class=”fade-up” font_weight=”600″]\n
          \n
        • Phosphorus content: \u2265 10.5% by weight<\/li>\n
        • \u201cAs deposited\u201d hardness: 500-600 HV<\/li>\n
        • Hardness after heat treatment: up to about 1000 HV<\/li>\n
        • Deposit structure: amorphous<\/li>\n
        • Salt spray resistance (ASTM B117, 30 \u00b5m): >1,000 hours<\/li>\n
        • Non-toxicity: compliant with NSF Standard 51 (food contact)<\/li>\n
        • Reference standards: ASTM B733 (Type V), ASTM B117, ISO 4527,
          \nNSF Standard 51, NACE<\/li>\n<\/ul>\n[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row full_width=”stretch_row_content” el_class=”dt-sm-container-w” wpex_bg_color=”#f4f5f8″][vc_column][vc_row_inner el_class=”ptd85 pbd85 ptm60 pbm60″][vc_column_inner el_class=”mbm30 fade-up” width=”1\/2″][vc_column_text css=”” el_class=”dt-remove-br-md mbd35 mbm20″ color=”palette-290″]\n

          Reference standards<\/h2>\n[\/vc_column_text][vc_column_text css=”” font_size=”16px” color=”#353639″ el_class=”dt-remove-br-md” font_weight=”600″]The Deltar ENP 1012 process is qualified according to the main international standards:<\/p>\n
            \n
          • ASTM B733 – Standard specification for autocatalytic nickel-phosphorus deposits<\/li>\n
          • ASTM B117 – Salt spray corrosion resistance test<\/li>\n
          • ASTM B656 – Surface preparation for autocatalytic deposition<\/li>\n
          • ASTM B571 – Adhesion test<\/li>\n
          • ISO 4527 – Autocatalytic nickel-phosphorus deposits,
            \nspecifications and test methods<\/li>\n
          • MIL-C-26074 – Military specification for autocatalytic
            \nnickel coatings<\/li>\n
          • NSF Standard 51 – Materials in contact with food<\/li>\n<\/ul>\n[\/vc_column_text][\/vc_column_inner][vc_column_inner el_class=”fade-up dt-cosa-serve” width=”1\/2″][vc_column_text css=”” el_class=”dt-remove-br-md mbd35 mbm20″ color=”palette-290″]\n

            What is needed for a quick assessment<\/h2>\n[\/vc_column_text][vc_column_text css=”” font_size=”16px” color=”#353639″ el_class=”dt-remove-br-md” font_weight=”600″]\n
              \n
            • Technical drawing with areas to be treated and to be protected<\/li>\n
            • Type of base material (steel, stainless, aluminium, duplex, superalloy)<\/li>\n
            • Operating environment (chemical, corrosive, marine, food)<\/li>\n
            • Required thickness<\/li>\n
            • Applicable specifications (ASTM, ISO, NACE, customer)<\/li>\n
            • Any required post-deposition heat treatment<\/li>\n<\/ul>\n[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row full_width=”stretch_row_content” wpex_bg_color=”#171717″ el_class=”pbd90 pbm60 dt-sm-container-w”][vc_column][vc_row_inner content_placement=”middle” css=”.vc_custom_1782891909194{background-color: #EF7D00 !important;}” el_class=”dt-info-callout”][vc_column_inner el_class=”fade-up” width=”2\/3″][vc_column_text css=”” color=”#171717″]\n

              Do you need a quotation?
              \nContact us for more information<\/h2>\n[\/vc_column_text][\/vc_column_inner][vc_column_inner el_class=”fade-up” width=”1\/3″]