--- title: "321S32 58B — Heat resistant steels" description: "321S32 58B in BS: material number 1.4878, also listed as X12CrNiTi18-9. Category: Heat resistant steels. Designations recorded for this grade: 63." canonical: https://steelequivalents.com/materials/bs/321s32-58b language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/bs/321s32-58b.md cs: https://steelequivalents.com/cs/materiály/bs/321s32-58b.md de: https://steelequivalents.com/de/werkstoffe/bs/321s32-58b.md es: https://steelequivalents.com/es/materiales/bs/321s32-58b.md fr: https://steelequivalents.com/fr/matériaux/bs/321s32-58b.md hu: https://steelequivalents.com/hu/anyagok/bs/321s32-58b.md it: https://steelequivalents.com/it/materiali/bs/321s32-58b.md nl: https://steelequivalents.com/nl/materialen/bs/321s32-58b.md pl: https://steelequivalents.com/pl/materiały/bs/321s32-58b.md pt: https://steelequivalents.com/pt/materiais/bs/321s32-58b.md ru: https://steelequivalents.com/ru/материалы/bs/321s32-58b.md tr: https://steelequivalents.com/tr/malzemeler/bs/321s32-58b.md zh: https://steelequivalents.com/zh/材料/bs/321s32-58b.md ja: https://steelequivalents.com/ja/材料/bs/321s32-58b.md ar: https://steelequivalents.com/ar/المواد/bs/321s32-58b.md ko: https://steelequivalents.com/ko/재료/bs/321s32-58b.md pt-br: https://steelequivalents.com/pt-br/materiais/bs/321s32-58b.md hi: https://steelequivalents.com/hi/सामग्री/bs/321s32-58b.md content_hash: sha256:96acacd18525cf4b83edac76de006a47e790a35bea9351076677c8a7676a670a 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/bs/321s32-58b > Canonical URL: https://steelequivalents.com/materials/bs/321s32-58b > 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. BS · United Kingdom · 63 designations # 321S32 58B 321S32 58B is a designation in BS for the material held under material number 1.4878, also listed as X12CrNiTi18-9. It is a material in the category Heat resistant steels. We list 63 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, BS, AFNOR, UNE, ISO, JIS, GB, GOST, UNI, SS, ČSN, PN and STN. - [*Material no.* **1.4878**](/materials/material-no/1.4878 "Material no.: 1.4878") - [*Category* **Heat resistant steels · 64 grades**](/categories/heat-resistant-steels "Category: Heat resistant steels · 64 grades") - *Designations* **63** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=3c30d1ea-34da-4dbd-942e-d8fa3d462437&designation=4afeb2bd-fcc8-46c3-8a78-be5acefde908 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/bs/321s32-58b.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN X8CrNiTi18-10 This grade’s own name · 2 grades on that route](/materials/din-en/x8crniti18-10 "DIN / EN X8CrNiTi18-10") - [UNS S32109 This grade’s own name · 5 grades on that route](/materials/uns/s32109 "UNS S32109") - [AISI / SAE 321H This grade’s own name · 4 grades on that route](/materials/aisi-sae/321h "AISI / SAE 321H") ## 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 63 designations · 15 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 · 4 - [1.4878 Indicative](/materials/material-no/1.4878 "DIN / EN 1.4878") - [X10CrNiTi189 Indicative](/materials/din-en/x10crniti18-9 "DIN / EN X10CrNiTi189") - [X12CrNiTi18-9 This grade’s own name Withdrawn](/materials/din-en/x12crniti18-9 "DIN / EN X12CrNiTi18-9") - [X8CrNiTi18-10 This grade’s own name](/materials/din-en/x8crniti18-10 "DIN / EN X8CrNiTi18-10") UNS United States · 2 - [S32100 Indicative](/materials/uns/s32100 "UNS S32100") - [S32109 This grade’s own name](/materials/uns/s32109 "UNS S32109") AISI / SAE United States · 5 - [321 Indicative](/materials/aisi-sae/321 "AISI / SAE 321") - [321H This grade’s own name](/materials/aisi-sae/321h "AISI / SAE 321H") - [321Н Indicative](/materials/aisi-sae/321n "AISI / SAE 321Н") - [S31254 Indicative](/materials/uns/s31254 "AISI / SAE S31254") - [S32109 Indicative](/materials/uns/s32109 "AISI / SAE S32109") BS United Kingdom · 9 - [321 S 31 Indicative](/materials/bs/321s31 "BS 321 S 31") - [321 S 51 Indicative](/materials/bs/321s51 "BS 321 S 51") - [321S12 Indicative](/materials/bs/321s12 "BS 321S12") - [321S20 Indicative](/materials/bs/321s20 "BS 321S20") - [321S32 Indicative](/materials/bs/321s32 "BS 321S32") - **321S32 58B Indicative** - [58B Indicative](/materials/bs/58b "BS 58B") - [58C Indicative](/materials/msz/58c "BS 58C") - [EN58C Indicative](/materials/bs/en58c "BS EN58C") AFNOR France · 5 - [T6CNT18.12(B) Indicative](/materials/afnor/t6cnt18-12-b "AFNOR T6CNT18.12(B)") - [Z1CNDU20-18-06AZ Indicative](/materials/afnor/z1cndu20-18-06az "AFNOR Z1CNDU20-18-06AZ") - [Z6CNT18-10 Indicative](/materials/afnor/z6cnt18-10 "AFNOR Z6CNT18-10") - [Z6CNT18.12 Indicative](/materials/afnor/z6cnt18-12 "AFNOR Z6CNT18.12") - [Z6CNT18.12B Indicative](/materials/afnor/z6cnt18-12b "AFNOR Z6CNT18.12B") UNE Spain · 2 - [F.3523 Indicative](/materials/une/f-3523 "UNE F.3523") - [F.3523-X 6CrNiTi 18 11 Indicative](/materials/une/f-3523-x-6crniti-18-11 "UNE F.3523-X 6CrNiTi 18 11") ISO International · 1 - [X7CrNiTi18-10 Indicative](/materials/din-en/x7crniti18-10 "ISO X7CrNiTi18-10") JIS Japan · 9 - [SUS 321HFB Indicative](/materials/jis/sus321hfb "JIS SUS 321HFB") - [SUS 321HTB Indicative](/materials/jis/sus321htb "JIS SUS 321HTB") - [SUS 321HTP Indicative](/materials/jis/sus321htp "JIS SUS 321HTP") - [SUS 321TKA Indicative](/materials/jis/sus321tka "JIS SUS 321TKA") - [SUS 321TP Indicative](/materials/jis/sus321tp "JIS SUS 321TP") - [SUS F 321 Indicative](/materials/jis/susf321 "JIS SUS F 321") - [SUS Y 321 Indicative](/materials/jis/susy321 "JIS SUS Y 321") - [SUS321 Indicative](/materials/jis/sus321 "JIS SUS321") - [SUS321H Indicative](/materials/jis/sus321h "JIS SUS321H") GB China · 1 - [1Cr18Ni9Ti Indicative](/materials/gb/1cr18ni9ti "GB 1Cr18Ni9Ti") GOST Russia / CIS · 14 - [06Ch18N10T Indicative](/materials/gost/06ch18n10t "GOST 06Ch18N10T") - [06Х18Н10Т Indicative](/materials/gost/06kh18n10t "GOST 06Х18Н10Т") - [08Ch18N10T Indicative](/materials/gost/08ch18n10t "GOST 08Ch18N10T") - [08Х18Н10Т Indicative](/materials/gost/08kh18n10t "GOST 08Х18Н10Т") - [10Ch18N10T Indicative](/materials/gost/10ch18n10t "GOST 10Ch18N10T") - [10Х18Н10Т Indicative](/materials/gost/10kh18n10t "GOST 10Х18Н10Т") - [12Ch18N10T Indicative](/materials/gost/12ch18n10t "GOST 12Ch18N10T") - [12KH18N10E Indicative](/materials/gost/12kh18n10e "GOST 12KH18N10E") - [12KH18N10T Indicative](/materials/gost/12kh18n10t "GOST 12KH18N10T") - [12X18H10T Indicative](/materials/gost/12x18h10t "GOST 12X18H10T") - [12Х18Н10Т Indicative](/materials/gost/12kh18n10t "GOST 12Х18Н10Т") - [18X18H9T Indicative](/materials/gost/18x18h9t "GOST 18X18H9T") - [X18H10E Indicative](/materials/gost/x18h10e "GOST X18H10E") - [ЭП47 Indicative](/materials/gost/ep47 "GOST ЭП47") UNI Italy · 2 - [X6CrNiTi18 11 Indicative](/materials/uni/x6crniti1811 "UNI X6CrNiTi18 11") - [X8CrNiTi18-11 Indicative](/materials/uni/x8crniti18-11 "UNI X8CrNiTi18-11") SS Sweden · 2 - [2337 Indicative](/materials/ss/2337 "SS 2337") - [2378 Indicative](/materials/ss/2378 "SS 2378") ČSN Czechia · 2 - [17 246 Indicative](/materials/csn/17246 "ČSN 17 246") - [17248 Indicative](/materials/csn/17248 "ČSN 17248") PN Poland · 4 - [0H18N10T Indicative](/materials/pn/0h18n10t "PN 0H18N10T") - [1H18N10T Indicative](/materials/pn/1h18n10t "PN 1H18N10T") - [1H18N12T Indicative](/materials/pn/1h18n12t "PN 1H18N12T") - [1H18N9T Indicative](/materials/pn/1h18n9t "PN 1H18N9T") STN Slovakia · 1 - [17 248 Indicative](/materials/csn/17248 "STN 17 248") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 7 elements on file · weight % What this alloy is Fe Cr Ni Mn Iron — the balance, never listed by a standard — 68.3 % Cr — 18 % Ni — 10.5 % Mn — 2 % Traces & impurities · 1.2 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.1 | | Si | ≤ 1 | | Mn | ≤ 2 | | P | 0.045 | | S | 0.015 | | Cr | 17–19 | | Ni | 9–12 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Nickel 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 | ≤0,10 | — | 0.100 | Max | | Si | ≤1,00 | — | 1.000 | Max | | P | 0,045 | 0.045 | 0.045 | Exact | | S | 0,015 | 0.015 | 0.015 | Exact | | Cr | 17,0-19,0 | 17.000 | 19.000 | Range | | Mn | ≤2,00 | — | 2.000 | Max | | Ni | 9,00-12,0 | 9.000 | 12.000 | Range | - ≥5xC≤0,80 - ≥5xC≤0,80 - ≥5xC≤0,80 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 7,9 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 2 conditions · 5 values By heat-treated condition**no delivery state stated** source `splav` | Heat-treated condition | Rm N/mm² | A5% | |---|---|---| | Sheet thin, GOST 5582-75 | 740 | 35 | | Sheet thin, GOST 4986-79 | 740 | 18 – 35 | By delivery state**Solution annealed** source `steelnumber` | Delivery state | HB | |---|---| | Solution annealed | 215 | 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 Cr / Ni 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. [1.4828 1.4828 Cr 19,0-21,0 · Ni 11,0-13,0 - ΔCr 2.00 - ΔNi 1.50 - 77 designations](/materials/material-no/1.4828 "1.4828") ## 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=3c30d1ea-34da-4dbd-942e-d8fa3d462437&designation=4afeb2bd-fcc8-46c3-8a78-be5acefde908 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/bs/321s32-58b.pdf "Datasheet as PDF")