--- title: "56B — Cast stainless steels" description: "56B in BS: material number 1.4027, also listed as GX20Cr14. It is a material in the category Cast stainless steels. Designations recorded for this grade: 28." canonical: https://steelequivalents.com/materials/bs/56b language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/bs/56b.md cs: https://steelequivalents.com/cs/materiály/bs/56b.md de: https://steelequivalents.com/de/werkstoffe/bs/56b.md es: https://steelequivalents.com/es/materiales/bs/56b.md fr: https://steelequivalents.com/fr/matériaux/bs/56b.md hu: https://steelequivalents.com/hu/anyagok/bs/56b.md it: https://steelequivalents.com/it/materiali/bs/56b.md nl: https://steelequivalents.com/nl/materialen/bs/56b.md pl: https://steelequivalents.com/pl/materiały/bs/56b.md pt: https://steelequivalents.com/pt/materiais/bs/56b.md ru: https://steelequivalents.com/ru/материалы/bs/56b.md tr: https://steelequivalents.com/tr/malzemeler/bs/56b.md zh: https://steelequivalents.com/zh/材料/bs/56b.md ja: https://steelequivalents.com/ja/材料/bs/56b.md ar: https://steelequivalents.com/ar/المواد/bs/56b.md ko: https://steelequivalents.com/ko/재료/bs/56b.md pt-br: https://steelequivalents.com/pt-br/materiais/bs/56b.md hi: https://steelequivalents.com/hi/सामग्री/bs/56b.md content_hash: sha256:268e70e45ae9c006e4c9ae95bd81c0505f01f016b42b9be65215547636a6c875 generated: 2026-09-22 --- > **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/56b > Canonical URL: https://steelequivalents.com/materials/bs/56b > 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 · 28 designations # 56B 56B is a designation in BS for the material held under material number 1.4027, also listed as GX20Cr14. It is a material in the category Cast stainless steels. We list 28 designations recorded for this grade, in the standards DIN / EN, AISI / SAE, BS, AFNOR, UNE, JIS, GB, GOST, UNI, ČSN, PN, MSZ, STAS, BDS and KS. - [*Material no.* **1.4027**](/materials/material-no/1.4027 "Material no.: 1.4027") - [*Category* **Cast stainless steels · 87 grades**](/categories/cast-stainless-steels "Category: Cast stainless steels · 87 grades") - *Designations* **28** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=83af113d-3133-4ff1-9895-6cc0d0e42abd&designation=c44cdc55-d7f0-4a4e-aa0a-291e1ab7d5e3 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/bs/56b.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN GX20Cr14 This grade’s own name](/materials/din-en/gx20cr14 "DIN / EN GX20Cr14") ## About Cast stainless steels Cast stainless steels are stainless-steel materials produced by casting, combining corrosion resistance with the ability to form complex component shapes. Their composition and mechanical behaviour vary by grade, and they are used for corrosion-resistant cast components such as pumps, valves and process equipment. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 28 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 · 2 - [1.4027 Indicative](/materials/material-no/1.4027 "DIN / EN 1.4027") - [GX20Cr14 This grade’s own name](/materials/din-en/gx20cr14 "DIN / EN GX20Cr14") AISI / SAE United States · 2 - [Gr.CA16 Indicative](/materials/aisi-sae/gr-ca16 "AISI / SAE Gr.CA16") - [J91153 Indicative](/materials/uns/j91153 "AISI / SAE J91153") BS United Kingdom · 8 - [420C24 Indicative](/materials/bs/420c24 "BS 420C24") - [420C29 Indicative](/materials/bs/420c29 "BS 420C29") - **56B Indicative** - [ANC 1 grade B Indicative](/materials/bs/anc-1-grade-b "BS ANC 1 grade B") - [ANC 1 grade C Indicative](/materials/bs/anc-1-grade-c "BS ANC 1 grade C") - [ANC1B Indicative](/materials/bs/anc1b "BS ANC1B") - [ANC1C Indicative](/materials/bs/anc1c "BS ANC1C") - [EN56B Indicative](/materials/bs/en56b "BS EN56B") AFNOR France · 1 - [Z20C13M Indicative](/materials/afnor/z20c13m "AFNOR Z20C13M") UNE Spain · 1 - [AMX20Cr13 Indicative](/materials/une/amx20cr13 "UNE AMX20Cr13") JIS Japan · 1 - [SCS2 Indicative](/materials/jis/scs2 "JIS SCS2") GB China · 2 - [ZG20Cr13 Indicative](/materials/gb/zg20cr13 "GB ZG20Cr13") - [ZG2Cr13 Indicative](/materials/gb/zg2cr13 "GB ZG2Cr13") GOST Russia / CIS · 3 - [20Ch13L Indicative](/materials/gost/20ch13l "GOST 20Ch13L") - [20KH13L Indicative](/materials/gost/20kh13l "GOST 20KH13L") - [20Х13Л Indicative](/materials/gost/20kh13l "GOST 20Х13Л") UNI Italy · 1 - [GX30Cr13 Indicative](/materials/uni/gx30cr13 "UNI GX30Cr13") ČSN Czechia · 1 - [422 906 Indicative](/materials/csn/422-906 "ČSN 422 906") PN Poland · 1 - [LH14 Indicative](/materials/pn/lh14 "PN LH14") MSZ Hungary · 2 - [AoX12Cr13 Indicative](/materials/msz/aox12cr13 "MSZ AoX12Cr13") - [AoX20CrNi14 Indicative](/materials/msz/aox20crni14 "MSZ AoX20CrNi14") STAS Romania · 1 - [T20Cr130 Indicative](/materials/stas/t20cr130 "STAS T20Cr130") BDS Bulgaria · 1 - [2Ch13L Indicative](/materials/bds/2ch13l "BDS 2Ch13L") KS South Korea · 1 - [SSC2 Indicative](/materials/ks/ssc2 "KS SSC2") 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 Si Mn Iron — the balance, never listed by a standard — 83.2 % Cr — 13.5 % Si — 1 % Mn — 1 % Traces & impurities · 1.3 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.16–0.23 | | Si | ≤ 1 | | Mn | ≤ 1 | | P | 0.045 | | S | 0.03 | | Cr | 12.5–14.5 | | Ni | 1 | 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 | 0,16-0,23 | 0.160 | 0.230 | Range | | Si | ≤1,00 | — | 1.000 | Max | | P | 0,045 | 0.045 | 0.045 | Exact | | S | 0,03 | 0.030 | 0.030 | Exact | | Cr | 12,5-14,5 | 12.500 | 14.500 | Range | | Mn | ≤1,00 | — | 1.000 | Max | | Ni | 1 | 1.000 | 1.000 | Exact | 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 7,85 g/cm³ Exact Weldability weldable with restrictions As published: limited weldability. 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 3 conditions · 58 values By delivery state**no delivery state stated** source `steeljis` | Delivery state | Rm N/mm² | Re N/mm² | A% | Z% | HB | |---|---|---|---|---|---| | Casting | 590 | 390 | 16 | 35 | — | | Quenched and tempered | — | — | — | — | 170 – 235 | By dimension**no delivery state stated** source `splav` | Dimension mm | Rm N/mm² | Re N/mm² | A5% | Z% | KCU kJ/m² | |---|---|---|---|---|---| | to 100 | 589 | 441 | 16 | 40 | 392 | At temperature**no delivery state stated** source `splav` | Temperature °C | Density g/cm³ | Elastic modulus GPa | Thermal expansion coefficient 10^-6/K | Thermal conductivity W/(m·K) | Specific heat capacity J/(kg·K) | Electrical resistivity nΩ·m | |---|---|---|---|---|---|---| | 20 | 7.74 | 222 | — | 21 | — | 645 | | 100 | — | 216 | 10 | 23 | 470 | 695 | | 200 | — | 211 | 10.8 | 24 | 491 | 775 | | 300 | — | 203 | 11.3 | 25 | 512 | 859 | | 400 | — | 195 | 11.7 | 26 | 533 | 931 | | 500 | — | 184 | 12.1 | 27 | 563 | 985 | | 600 | — | 167 | 12.4 | 27 | 596 | 1055 | | 700 | — | 149 | 12.6 | 27 | 643 | 1115 | | 800 | — | 140 | 12.8 | 28 | 680 | 1125 | | 900 | — | — | 10.8 | 28 | 693 | 1160 | 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. ## Heat treatment **GB 2100-1980** Choose one - A · Annealing 950 °C - B · Quenching 1050 °C Quenchant Oil or Air Source: [www.caishuku.com](https://www.caishuku.com/detail/azhlNWIxMTQ2NzM_ "Source: www.caishuku.com") ## 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. [GX8CrNi12 1.4107 Cr 11,5-12,5 · Ni 0,80-1,50 - ΔCr 1.50 - ΔNi 0.15 - 6 designations](/materials/din-en/gx8crni12 "GX8CrNi12") ## 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=83af113d-3133-4ff1-9895-6cc0d0e42abd&designation=c44cdc55-d7f0-4a4e-aa0a-291e1ab7d5e3 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/bs/56b.pdf "Datasheet as PDF")