--- title: "Z5 NC 35-20 — Heat resistant steels" description: "Z5 NC 35-20 in AFNOR: material number 1.4876, also listed as X10NiCrAlTi32-20. It is a material in the category Heat resistant steels." canonical: https://steelequivalents.com/materials/afnor/z5-nc-35-20 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/afnor/z5-nc-35-20.md cs: https://steelequivalents.com/cs/materiály/afnor/z5-nc-35-20.md de: https://steelequivalents.com/de/werkstoffe/afnor/z5-nc-35-20.md es: https://steelequivalents.com/es/materiales/afnor/z5-nc-35-20.md fr: https://steelequivalents.com/fr/matériaux/afnor/z5-nc-35-20.md hu: https://steelequivalents.com/hu/anyagok/afnor/z5-nc-35-20.md it: https://steelequivalents.com/it/materiali/afnor/z5-nc-35-20.md nl: https://steelequivalents.com/nl/materialen/afnor/z5-nc-35-20.md pl: https://steelequivalents.com/pl/materiały/afnor/z5-nc-35-20.md pt: https://steelequivalents.com/pt/materiais/afnor/z5-nc-35-20.md ru: https://steelequivalents.com/ru/материалы/afnor/z5-nc-35-20.md tr: https://steelequivalents.com/tr/malzemeler/afnor/z5-nc-35-20.md zh: https://steelequivalents.com/zh/材料/afnor/z5-nc-35-20.md ja: https://steelequivalents.com/ja/材料/afnor/z5-nc-35-20.md ar: https://steelequivalents.com/ar/المواد/afnor/z5-nc-35-20.md ko: https://steelequivalents.com/ko/재료/afnor/z5-nc-35-20.md pt-br: https://steelequivalents.com/pt-br/materiais/afnor/z5-nc-35-20.md hi: https://steelequivalents.com/hi/सामग्री/afnor/z5-nc-35-20.md content_hash: sha256:aed77249dd8177b0c5df2ce59ecc0697295e0a39ff66eded474f1ba6b43d1553 generated: 2026-09-24 --- > **Machine-readable Markdown rendering.** This is a Markdown representation of a web page, > served for AI agents and crawlers as a token-efficient alternative to the full HTML. > Full interactive HTML version: https://steelequivalents.com/materials/afnor/z5-nc-35-20 > Canonical URL: https://steelequivalents.com/materials/afnor/z5-nc-35-20 > Available languages: en, cs, de, es, fr, hu, it, nl, pl, pt, ru, tr, zh, ja, ar, ko, pt-br, hi > Change detection: `content_hash` is the SHA-256 of this document's Markdown body — everything > below this block, whitespace-trimmed, excluding the front-matter. Compare it to detect a real > content change; `generated` moves on every render and is not a change signal. AFNOR · France · 46 designations # Z5 NC 35-20 Z5 NC 35-20 is a designation in AFNOR for the material held under material number 1.4876, also listed as X10NiCrAlTi32-20. It is a material in the category Heat resistant steels. We list 46 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, ASTM, BS, AFNOR, UNE, ISO, SAE AMS, JIS, GOST, ČSN and STN. - [*Material no.* **1.4876**](/materials/material-no/1.4876 "Material no.: 1.4876") - [*Category* **Heat resistant steels · 64 grades**](/categories/heat-resistant-steels "Category: Heat resistant steels · 64 grades") - *Designations* **46** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=d0273d39-c60f-4b5d-b6dc-1db6ee238018&designation=2daacde9-04fa-4d7e-b6bd-c36bcf5dcb65 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/afnor/z5-nc-35-20.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN X10NiCrAlTi32-21 This grade’s own name](/materials/din-en/x10nicralti32-21 "DIN / EN X10NiCrAlTi32-21") - [UNS N08332 This grade’s own name](/materials/uns/n08332 "UNS N08332") ## About Heat resistant steels Heat resistant steels are alloyed materials designed to retain useful mechanical properties and resist oxidation or scaling during service at elevated temperatures. They are used for components in furnaces, boilers, heat exchangers and power-generation equipment exposed to hot gases or sustained heat. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 46 designations · 13 standards · nothing hidden This grade’s own name recorded in our sources as this grade’s own designation under that standard. Indicative taken from a published cross-reference table; a close match, not a guarantee of interchangeability. Verify against the mill certificate before ordering. Withdrawn designation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once. DIN / EN Europe · 3 - [X10NiCrAlTi32-20 This grade’s own name Withdrawn](/materials/din-en/x10nicralti32-20 "DIN / EN X10NiCrAlTi32-20") - [X10NiCrAlTi32-21 This grade’s own name](/materials/din-en/x10nicralti32-21 "DIN / EN X10NiCrAlTi32-21") - [X8NiCrAlTi32-21 This grade’s own name](/materials/din-en/x8nicralti32-21 "DIN / EN X8NiCrAlTi32-21") UNS United States · 7 - [Incoloy 800 Indicative](/materials/ks/incoloy800 "UNS Incoloy 800") - [Incoloy 800H Indicative](/materials/uns/incoloy-800h "UNS Incoloy 800H") - [Incoloy 800HT Indicative](/materials/uns/incoloy-800ht "UNS Incoloy 800HT") - [N08332 This grade’s own name](/materials/uns/n08332 "UNS N08332") - [N08800 This grade’s own name](/materials/uns/n08800 "UNS N08800") - [N08810 This grade’s own name](/materials/uns/n08810 "UNS N08810") - [N08811 Indicative](/materials/uns/n08811 "UNS N08811") AISI / SAE United States · 6 - [800 Indicative](/materials/aisi-sae/800 "AISI / SAE 800") - [B 163 Indicative](/materials/astm/b163 "AISI / SAE B 163") - [N08332 Indicative](/materials/uns/n08332 "AISI / SAE N08332") - [N08800 Indicative](/materials/uns/n08800 "AISI / SAE N08800") - [N08810 Indicative](/materials/uns/n08810 "AISI / SAE N08810") - [N08811 Indicative](/materials/uns/n08811 "AISI / SAE N08811") ASTM United States · 7 - [A 240 Indicative](/materials/astm/a240 "ASTM A 240") - [B 366 Indicative](/materials/astm/b366 "ASTM B 366") - [B 407 Indicative](/materials/astm/b407 "ASTM B 407") - [B 408 Indicative](/materials/astm/b408 "ASTM B 408") - [B 409 Indicative](/materials/astm/b409 "ASTM B 409") - [B 515 Indicative](/materials/astm/b-515 "ASTM B 515") - [B564 Indicative](/materials/astm/b564 "ASTM B564") BS United Kingdom · 3 - [3076 NA 15 H Indicative](/materials/bs/3076-na-15-h "BS 3076 NA 15 H") - [NA 15 Indicative](/materials/bs/na-15 "BS NA 15") - [NA15(H) Indicative](/materials/bs/na15-h "BS NA15(H)") AFNOR France · 4 - [Z10NC32-21 Indicative](/materials/afnor/z10nc32-21 "AFNOR Z10NC32-21") - **Z5 NC 35-20 Indicative** - [Z8NC32.21 Indicative](/materials/afnor/z8nc32-21 "AFNOR Z8NC32.21") - [Z8NC33-21 Indicative](/materials/afnor/z8nc33-21 "AFNOR Z8NC33-21") UNE Spain · 4 - [33-21 Indicative](/materials/une/33-21 "UNE 33-21") - [F.3314 Indicative](/materials/une/f-3314 "UNE F.3314") - [F.3545 Indicative](/materials/une/f-3545 "UNE F.3545") - [F.3545-X9NiCr Indicative](/materials/une/f-3545-x9nicr "UNE F.3545-X9NiCr") ISO International · 3 - [FeNi32Cr21AlTi Indicative](/materials/iso/feni32cr21alti "ISO FeNi32Cr21AlTi") - [NW8800 Indicative](/materials/iso/nw8800 "ISO NW8800") - [X8NiCrAlTi32-21 Indicative](/materials/din-en/x8nicralti32-21 "ISO X8NiCrAlTi32-21") SAE AMS United States / Aerospace · 2 - [5766 Indicative bar forging](/materials/ams/5766 "SAE AMS 5766") - [5871 Indicative plate sheet strip](/materials/ams/5871 "SAE AMS 5871") JIS Japan · 3 - [NCF 800 Indicative](/materials/jis/ncf800 "JIS NCF 800") - [NCF 800 TB Indicative](/materials/jis/ncf800tb "JIS NCF 800 TB") - [NCF 800 TP Indicative](/materials/jis/ncf800tp "JIS NCF 800 TP") GOST Russia / CIS · 2 - [Ch20N32T Indicative](/materials/gost/ch20n32t "GOST Ch20N32T") - [EP670 /ChN32T Indicative](/materials/gost/ep670-chn32t "GOST EP670 /ChN32T") ČSN Czechia · 1 - [17358 Indicative](/materials/csn/17358 "ČSN 17358") STN Slovakia · 1 - [17 358 Indicative](/materials/csn/17358 "STN 17 358") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 9 elements on file · weight % What this alloy is Fe Ni Cr Mn Iron — the balance, never listed by a standard — 43.1 % Ni — 32 % Cr — 21 % Mn — 2 % Traces & impurities · 1.9 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.12 | | Si | ≤ 1 | | Mn | ≤ 2 | | P | 0.03 | | S | 0.015 | | Cr | 19–23 | | Ni | 30–34 | | Al | 0.15–0.6 | | Ti | 0.15–0.6 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Nickel Aluminium Titanium 0.01 % 0.1 % 1 % 10 % 100 % The scale is logarithmic, not the element’s raw share of the alloy — the only honest way to fit 0.01 % and 100 % in one picture, and it means every value here can be compared with every other. | Element | As published source text, verbatim | Min% by weight | Max% by weight | Bound | |---|---|---|---|---| | C | ≤0,12 | — | 0.120 | Max | | Al | 0,15-0,60 | 0.150 | 0.600 | Range | | Si | ≤1,00 | — | 1.000 | Max | | P | 0,03 | 0.030 | 0.030 | Exact | | S | 0,015 | 0.015 | 0.015 | Exact | | Ti | 0,15-0,60 | 0.150 | 0.600 | Range | | Cr | 19,0-23,0 | 19.000 | 23.000 | Range | | Mn | ≤2,00 | — | 2.000 | Max | | Ni | 30,0-34,0 | 30.000 | 34.000 | Range | The published column is the source string byte-for-byte, decimal comma and all; Min and Max are the parsed bounds. Elements not listed have no value on file — they are omitted, never inferred. ## Predicted transformation temperatures Not enough recorded composition to predict a transformation temperature for this grade — missing: Mo. ## Physical & mechanical properties Density 8 g/cm³ Exact An absent property means we hold no value for it — it is left out rather than estimated, interpolated from a neighbouring grade, or filled from a handbook. It does not mean the property is undefined for the material. ## Properties by condition 1 conditions · 1 values By delivery state**Solution annealed** source `steelnumber` | Delivery state | HB | |---|---| | Solution annealed | 192 | Every figure holds only for the condition on its own row. Values are never merged across conditions or across sources, never averaged, and never interpolated between two rows. An em dash means no value on file — never zero. Figures are converted to the unit in the column header; the source’s own wording is kept and shown where the two differ. ## Similar grades — and why Selection rule, stated so you can disagree with it: same number class 1.4, a shared category, and a published range for Ni / Cr that overlaps this grade’s. These are neighbours in composition space — they are not equivalents, and none is claimed to be interchangeable with this grade. [X10NiCr32-20 1.4861 Ni 30,0-34,0 · Cr 19,0-22,0 - ΔNi 0.00 - ΔCr 0.50 - 1 designations](/materials/din-en/x10nicr32-20 "X10NiCr32-20") ## Looking for this grade under another name? Search the catalogue by designation, material number or composition — every name on this page is itself a way in. [Search](/search "Steel grade search")[Inquiry](/inquiry?material=d0273d39-c60f-4b5d-b6dc-1db6ee238018&designation=2daacde9-04fa-4d7e-b6bd-c36bcf5dcb65 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/afnor/z5-nc-35-20.pdf "Datasheet as PDF")