--- title: "110Ch18M-SChD — Stainless steels" description: "110Ch18M-SChD in GOST: material number 1.4125, also listed as X105CrMo17. Category: Stainless steels. Designations recorded for this grade: 50." canonical: https://steelequivalents.com/materials/gost/110ch18m-schd language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/gost/110ch18m-schd.md cs: https://steelequivalents.com/cs/materiály/gost/110ch18m-schd.md de: https://steelequivalents.com/de/werkstoffe/gost/110ch18m-schd.md es: https://steelequivalents.com/es/materiales/gost/110ch18m-schd.md fr: https://steelequivalents.com/fr/matériaux/gost/110ch18m-schd.md hu: https://steelequivalents.com/hu/anyagok/gost/110ch18m-schd.md it: https://steelequivalents.com/it/materiali/gost/110ch18m-schd.md nl: https://steelequivalents.com/nl/materialen/gost/110ch18m-schd.md pl: https://steelequivalents.com/pl/materiały/gost/110ch18m-schd.md pt: https://steelequivalents.com/pt/materiais/gost/110ch18m-schd.md ru: https://steelequivalents.com/ru/материалы/gost/110ch18m-schd.md tr: https://steelequivalents.com/tr/malzemeler/gost/110ch18m-schd.md zh: https://steelequivalents.com/zh/材料/gost/110ch18m-schd.md ja: https://steelequivalents.com/ja/材料/gost/110ch18m-schd.md ar: https://steelequivalents.com/ar/المواد/gost/110ch18m-schd.md ko: https://steelequivalents.com/ko/재료/gost/110ch18m-schd.md pt-br: https://steelequivalents.com/pt-br/materiais/gost/110ch18m-schd.md hi: https://steelequivalents.com/hi/सामग्री/gost/110ch18m-schd.md content_hash: sha256:4009cde903fab6f8c8b4becc10457faefa239e4c4d83b1b7c35203431a1dc42a 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/gost/110ch18m-schd > Canonical URL: https://steelequivalents.com/materials/gost/110ch18m-schd > 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. GOST · Russia / CIS · 50 designations # 110Ch18M-SChD 110Ch18M-SChD is a designation in GOST for the material held under material number 1.4125, also listed as X105CrMo17. It is a material in the category Stainless steels. We list 50 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, ASTM, AFNOR, ISO, SAE AMS, JIS, GB, GOST, ČSN and PN. - [*Material no.* **1.4125**](/materials/material-no/1.4125 "Material no.: 1.4125") - [*Category* **Stainless steels · 468 grades**](/categories/stainless-steels "Category: Stainless steels · 468 grades") - *Designations* **50** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=abd7399f-d1c6-4e8a-bef6-93d8e15f055f&designation=d0f2d991-b0a2-4b2c-9540-bd5dac027812 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/gost/110ch18m-schd.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN X105CrMo17 This grade’s own name](/materials/din-en/x105crmo17 "DIN / EN X105CrMo17") - [UNS S44004 This grade’s own name · 7 grades on that route](/materials/uns/s44004 "UNS S44004") - [AISI / SAE 440C This grade’s own name · 7 grades on that route](/materials/aisi-sae/440c "AISI / SAE 440C") ## About Stainless steels Stainless steels are corrosion-resistant alloy steels whose chromium content promotes a protective passive surface film. They are used for equipment, structures and components exposed to moisture, chemicals or hygienic service, with different alloy compositions selected for corrosion resistance, strength, formability or weldability. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 50 designations · 12 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 · 1 - [X105CrMo17 This grade’s own name](/materials/din-en/x105crmo17 "DIN / EN X105CrMo17") UNS United States · 5 - [S44002 Indicative](/materials/uns/s44002 "UNS S44002") - [S44003 Indicative](/materials/uns/s44003 "UNS S44003") - [S44004 This grade’s own name](/materials/uns/s44004 "UNS S44004") - [S44020 Indicative](/materials/uns/s44020 "UNS S44020") - [S44025 This grade’s own name](/materials/uns/s44025 "UNS S44025") AISI / SAE United States · 11 - [400C Indicative](/materials/aisi-sae/400c "AISI / SAE 400C") - [440A Indicative](/materials/aisi-sae/440a "AISI / SAE 440A") - [440B Indicative](/materials/aisi-sae/440b "AISI / SAE 440B") - [440C This grade’s own name](/materials/aisi-sae/440c "AISI / SAE 440C") - [440F Indicative](/materials/aisi-sae/440f "AISI / SAE 440F") - [440FSe Indicative](/materials/aisi-sae/440fse "AISI / SAE 440FSe") - [51440C Indicative](/materials/aisi-sae/51440c "AISI / SAE 51440C") - [617 This grade’s own name](/materials/aisi-sae/617 "AISI / SAE 617") - [A756 Indicative](/materials/aisi-sae/a756 "AISI / SAE A756") - [S44004 Indicative](/materials/uns/s44004 "AISI / SAE S44004") - [S44025 Indicative](/materials/uns/s44025 "AISI / SAE S44025") ASTM United States · 11 - [A 480 Indicative](/materials/astm/a480 "ASTM A 480") - [A276 Indicative](/materials/astm/a276 "ASTM A276") - [A314 Indicative](/materials/astm/a314 "ASTM A314") - [A473 Indicative](/materials/astm/a473 "ASTM A473") - [A484 Indicative](/materials/astm/a484 "ASTM A484") - [A493 Indicative](/materials/astm/a493 "ASTM A493") - [A580 Indicative](/materials/astm/a580 "ASTM A580") - [F116 Indicative](/materials/astm/f116 "ASTM F116") - [F1613 Indicative](/materials/astm/f1613 "ASTM F1613") - [F2215 Indicative](/materials/astm/f2215 "ASTM F2215") - [F899 Indicative](/materials/astm/f899 "ASTM F899") AFNOR France · 2 - [X105CrMo17 Indicative](/materials/din-en/x105crmo17 "AFNOR X105CrMo17") - [Z100CD17 Indicative](/materials/afnor/z100cd17 "AFNOR Z100CD17") ISO International · 2 - [A-1b Indicative](/materials/iso/a-1b "ISO A-1b") - [X108CrMo17 Indicative](/materials/din-en/x108crmo17 "ISO X108CrMo17") SAE AMS United States / Aerospace · 7 - [5618 Indicative bar forging wire](/materials/ams/5618 "SAE AMS 5618") - [5630 Indicative bar forging wire](/materials/ams/5630 "SAE AMS 5630") - [5631 Indicative](/materials/ams/5631 "SAE AMS 5631") - [5632 Indicative](/materials/ams/5632 "SAE AMS 5632") - [5880 Indicative bar wire](/materials/ams/5880 "SAE AMS 5880") - [5899 Indicative](/materials/ams/5899 "SAE AMS 5899") - [7445 Indicative](/materials/ams/7445 "SAE AMS 7445") JIS Japan · 1 - [SUS 440C Indicative](/materials/jis/sus440c "JIS SUS 440C") GB China · 2 - [11Cr17 Indicative](/materials/gb/11cr17 "GB 11Cr17") - [9Cr18 Indicative](/materials/gb/9cr18 "GB 9Cr18") GOST Russia / CIS · 6 - **110Ch18M-SChD Indicative** - [95Ch18 Indicative](/materials/gost/95ch18 "GOST 95Ch18") - [95KH18 Indicative](/materials/gost/95kh18 "GOST 95KH18") - [95Х18 Indicative](/materials/gost/95kh18 "GOST 95Х18") - [9Х18 Indicative](/materials/gost/9kh18 "GOST 9Х18") - [ЭИ229 Indicative](/materials/gost/ei229 "GOST ЭИ229") ČSN Czechia · 1 - [17042 Indicative](/materials/csn/17042 "ČSN 17042") PN Poland · 1 - [H18 Indicative](/materials/pn/h18 "PN H18") 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 C Si Iron — the balance, never listed by a standard — 79.3 % Cr — 17 % C — 1.1 % Si — 1 % Traces & impurities · 1.7 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | 0.95–1.2 — Unusual | | Si | ≤ 1 | | Mn | ≤ 1 | | P | 0.04 | | S | 0.015 | | Cr | 16–18 | | Mo | 0.4–0.8 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum 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 | 0,95-1,20 | 0.950 | 1.200 | Range | | Si | ≤1,00 | — | 1.000 | Max | | P | 0,04 | 0.040 | 0.040 | Exact | | S | 0,015 | 0.015 | 0.015 | Exact | | Cr | 16,0-18,0 | 16.000 | 18.000 | Range | | Mn | ≤1,00 | — | 1.000 | Max | | Mo | 0,40-0,80 | 0.400 | 0.800 | 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: Ni. ## Physical & mechanical properties Density 7,7 g/cm³ Exact Transformation point Ac1 830 °C Exact Transformation point Ac3 1100 °C Exact · Ac3(Acm) Transformation point Ar3 810 °C Exact · Ar3(Arcm) 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 4 conditions · 16 values By delivery state**Soft annealed** source `steelnumber` | Delivery state | HB | |---|---| | Soft annealed | 285 | By heat-treated condition**no delivery state stated** source `splav` | Heat-treated condition | Rm N/mm² | Re N/mm² | A5% | Z% | |---|---|---|---|---| | Bar | 770 | 420 | 15 | 30 | By delivery state**no delivery state stated** source `splav` | Delivery state | HB | |---|---| | 95KH18 ( 95Х18 ) (annealing) , Bar GOST 5949-75 | 269 | 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) | |---|---|---|---|---|---| | 20 | 7.75 | 204 | — | 24 | — | | 100 | 7.73 | — | 11.8 | — | 483 | | 200 | — | — | 12.3 | — | — | | 300 | — | — | 12.7 | — | — | | 400 | — | — | 13.1 | — | — | | 500 | — | — | 13.4 | — | — | 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 / Mo 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. [X6CrMoS17 1.4105 Cr 16,0-18,0 · Mo 0,20-0,60 - ΔCr 0.00 - ΔMo 0.20 - 25 designations](/materials/din-en/x6crmos17 "X6CrMoS17")[X85Cr17 1.4041 Cr 16,0-18,0 · Mo ≤0,75 - ΔCr 0.00 - ΔMo 0.23 - 15 designations](/materials/din-en/x85cr17 "X85Cr17")[X2CrMoNbTi18-1 1.4513 Cr 16,0-18,0 · Mo 0,80-1,40 - ΔCr 0.00 - ΔMo 0.50 - 7 designations](/materials/din-en/x2crmonbti18-1 "X2CrMoNbTi18-1")[X6CrMoNb17-1 1.4526 Cr 16,0-18,0 · Mo 0,80-1,40 - ΔCr 0.00 - ΔMo 0.50 - 6 designations](/materials/din-en/x6crmonb17-1 "X6CrMoNb17-1")[X90CrCoMoV17 1.4535 Cr 15,5-17,5 · Mo 0,40-0,60 - ΔCr 0.50 - ΔMo 0.10 - 1 designations](/materials/din-en/x90crcomov17 "X90CrCoMoV17")[1.4104 1.4104 Cr 15,5-17,5 · Mo 0,20-0,60 - ΔCr 0.50 - ΔMo 0.20 - 32 designations](/materials/material-no/1.4104 "1.4104") ## 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=abd7399f-d1c6-4e8a-bef6-93d8e15f055f&designation=d0f2d991-b0a2-4b2c-9540-bd5dac027812 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/gost/110ch18m-schd.pdf "Datasheet as PDF")