--- title: "OOCr19Ni13Mo — Stainless steels" description: "OOCr19Ni13Mo in GB: material number 1.4438, also listed as X2CrNiMo 19-14-4. Category: Stainless steels. Designations recorded for this grade: 49." canonical: https://steelequivalents.com/materials/gb/oocr19ni13mo language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/gb/oocr19ni13mo.md cs: https://steelequivalents.com/cs/materiály/gb/oocr19ni13mo.md de: https://steelequivalents.com/de/werkstoffe/gb/oocr19ni13mo.md es: https://steelequivalents.com/es/materiales/gb/oocr19ni13mo.md fr: https://steelequivalents.com/fr/matériaux/gb/oocr19ni13mo.md hu: https://steelequivalents.com/hu/anyagok/gb/oocr19ni13mo.md it: https://steelequivalents.com/it/materiali/gb/oocr19ni13mo.md nl: https://steelequivalents.com/nl/materialen/gb/oocr19ni13mo.md pl: https://steelequivalents.com/pl/materiały/gb/oocr19ni13mo.md pt: https://steelequivalents.com/pt/materiais/gb/oocr19ni13mo.md ru: https://steelequivalents.com/ru/материалы/gb/oocr19ni13mo.md tr: https://steelequivalents.com/tr/malzemeler/gb/oocr19ni13mo.md zh: https://steelequivalents.com/zh/材料/gb/oocr19ni13mo.md ja: https://steelequivalents.com/ja/材料/gb/oocr19ni13mo.md ar: https://steelequivalents.com/ar/المواد/gb/oocr19ni13mo.md ko: https://steelequivalents.com/ko/재료/gb/oocr19ni13mo.md pt-br: https://steelequivalents.com/pt-br/materiais/gb/oocr19ni13mo.md hi: https://steelequivalents.com/hi/सामग्री/gb/oocr19ni13mo.md content_hash: sha256:e8ef56d2469b438145719cf359823631cae45b6180d16857ce8de3912c1c27bd 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/gb/oocr19ni13mo > Canonical URL: https://steelequivalents.com/materials/gb/oocr19ni13mo > 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. GB · China · 49 designations # OOCr19Ni13Mo OOCr19Ni13Mo is a designation in GB for the material held under material number 1.4438, also listed as X2CrNiMo 19-14-4. It is a material in the category Stainless steels. We list 49 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, ASTM, BS, AFNOR, UNE, JIS, GB, UNI, SS, PN, JUS and SFS. - [*Material no.* **1.4438**](/materials/material-no/1.4438 "Material no.: 1.4438") - [*Category* **Stainless steels · 468 grades**](/categories/stainless-steels "Category: Stainless steels · 468 grades") - *Designations* **49** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=9320c5ce-f130-423a-989e-e89867b6bf75&designation=9fca74e9-70ca-4dfc-8b51-d92d8226f5fc "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/gb/oocr19ni13mo.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN X2CrNiMo 19-14-4 This grade’s own name](/materials/din-en/x2crnimo-19-14-4 "DIN / EN X2CrNiMo 19-14-4") - [UNS S31703 This grade’s own name](/materials/uns/s31703 "UNS S31703") - [AISI / SAE 317L This grade’s own name](/materials/aisi-sae/317l "AISI / SAE 317L") ## 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 49 designations · 14 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 - [1.4438 Indicative](/materials/material-no/1.4438 "DIN / EN 1.4438") - [X 2 CrNiMo 18 16 4 This grade’s own name Withdrawn](/materials/din-en/x-2-crnimo-18-16-4 "DIN / EN X 2 CrNiMo 18 16 4") - [X2CrNiMo 19-14-4 This grade’s own name](/materials/din-en/x2crnimo-19-14-4 "DIN / EN X2CrNiMo 19-14-4") - [X2CrNiMo18-15-4 This grade’s own name](/materials/din-en/x2crnimo18-15-4 "DIN / EN X2CrNiMo18-15-4") UNS United States · 2 - [S31700 Indicative](/materials/uns/s31700 "UNS S31700") - [S31703 This grade’s own name](/materials/uns/s31703 "UNS S31703") AISI / SAE United States · 2 - [317L This grade’s own name](/materials/aisi-sae/317l "AISI / SAE 317L") - [S31703 Indicative](/materials/uns/s31703 "AISI / SAE S31703") ASTM United States · 21 - [A1012 Indicative](/materials/astm/a1012 "ASTM A1012") - [A1049 Indicative](/materials/astm/a1049 "ASTM A1049") - [A182 Indicative](/materials/aisi-sae/a182 "ASTM A182") - [A213 Indicative](/materials/astm/a213 "ASTM A213") - [A240 Indicative](/materials/astm/a240 "ASTM A240") - [A249 Indicative](/materials/astm/a249 "ASTM A249") - [A276 Indicative](/materials/astm/a276 "ASTM A276") - [A312 Indicative](/materials/astm/a312 "ASTM A312") - [A314 Indicative](/materials/astm/a314 "ASTM A314") - [A403 Indicative](/materials/astm/a403 "ASTM A403") - [A409 Indicative](/materials/astm/a409 "ASTM A409") - [A473 Indicative](/materials/astm/a473 "ASTM A473") - [A478 Indicative](/materials/astm/a478 "ASTM A478") - [A479 Indicative](/materials/astm/a479 "ASTM A479") - [A774 Indicative](/materials/astm/a774 "ASTM A774") - [A778 Indicative](/materials/astm/a778 "ASTM A778") - [A813 Indicative](/materials/astm/a813 "ASTM A813") - [A814 Indicative](/materials/astm/a814 "ASTM A814") - [A903 Indicative](/materials/astm/a903 "ASTM A903") - [A943 Indicative](/materials/astm/a943 "ASTM A943") - [A988 Indicative](/materials/astm/a988 "ASTM A988") BS United Kingdom · 1 - [317S12 Indicative](/materials/bs/317s12 "BS 317S12") AFNOR France · 4 - [Z2CND19-15-04 Indicative](/materials/afnor/z2cnd19-15-04 "AFNOR Z2CND19-15-04") - [Z2CND19.15 Indicative](/materials/afnor/z2cnd19-15 "AFNOR Z2CND19.15") - [Z3CND19-15-04 Indicative](/materials/afnor/z3cnd19-15-04 "AFNOR Z3CND19-15-04") - [Z8CND19-15 Indicative](/materials/afnor/z8cnd19-15 "AFNOR Z8CND19-15") UNE Spain · 1 - [F.3539 Indicative](/materials/une/f-3539 "UNE F.3539") JIS Japan · 6 - [SUS 317LFB Indicative](/materials/jis/sus317lfb "JIS SUS 317LFB") - [SUS 317LTB Indicative](/materials/jis/sus317ltb "JIS SUS 317LTB") - [SUS 317LTP Indicative](/materials/jis/sus317ltp "JIS SUS 317LTP") - [SUS F 317L Indicative](/materials/jis/susf317l "JIS SUS F 317L") - [SUS Y 317L Indicative](/materials/jis/susy317l "JIS SUS Y 317L") - [SUS317L Indicative](/materials/jis/sus317l "JIS SUS317L") GB China · 2 - [00Cr19Ni13Mo3 Indicative](/materials/gb/00cr19ni13mo3 "GB 00Cr19Ni13Mo3") - **OOCr19Ni13Mo Indicative** UNI Italy · 2 - [X2CrNiMo 18 15 Indicative](/materials/din-en/x2crnimo18-15 "UNI X2CrNiMo 18 15") - [X2CrNiMo1816 Indicative](/materials/uni/x2crnimo1816 "UNI X2CrNiMo1816") SS Sweden · 1 - [2367 Indicative](/materials/ss/2367 "SS 2367") PN Poland · 1 - [00H17N14M2 Indicative](/materials/pn/00h17n14m2 "PN 00H17N14M2") JUS former Yugoslavia · 1 - [Č.45705 Indicative](/materials/jus/c-45705 "JUS Č.45705") SFS Finland · 1 - [770 Indicative](/materials/sfs/770 "SFS 770") 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 Cr Ni Mo Iron — the balance, never listed by a standard — 60.3 % Cr — 18.5 % Ni — 14.5 % Mo — 3.5 % Traces & impurities · 3.2 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.03 | | Si | ≤ 1 | | Mn | ≤ 2 | | P | 0.045 | | S | 0.015 | | Cr | 17.5–19.5 | | Mo | 3–4 | | Ni | 13–16 | | N | 0.11 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum Nickel Nitrogen 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 | ≤0,030 | — | 0.030 | Max | | N | 0,11 | 0.110 | 0.110 | Exact | | Si | ≤1,00 | — | 1.000 | Max | | P | 0,045 | 0.045 | 0.045 | Exact | | S | 0,015 | 0.015 | 0.015 | Exact | | Cr | 17,5-19,5 | 17.500 | 19.500 | Range | | Mn | ≤2,00 | — | 2.000 | Max | | Ni | 13,0-16,0 | 13.000 | 16.000 | Range | | Mo | 3,00-4,00 | 3.000 | 4.000 | 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 This grade's composition falls outside the published model's validated range (a low-alloy composition window), so no transformation temperature is predicted here. ## Physical & mechanical properties Density 8 g/cm³ Exact Elastic modulus 200 GPa Exact Thermal expansion coefficient 16.5 10^-6/K Exact Thermal conductivity 15 W/(m·K) Exact Specific heat capacity 0.5 J/(kg·K) Exact Electrical resistivity 0.79 nΩ·m 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 3 conditions · 8 values By delivery state**no delivery state stated** source `steeljis` | Delivery state | Rm N/mm² | Re N/mm² | A% | HB | HRB | HV | |---|---|---|---|---|---|---| | Plate/Sheet Hot-rolled | 480 | 175 | 40 | — | — | — | | Hot-rolled | — | — | — | 187 | 90 | 200 | By delivery state**Soft annealed** source `steelnumber` | Delivery state | HB | |---|---| | Soft annealed | 215 | By delivery state**Solution annealed** source `steelnumber` | Delivery state | HB | |---|---| | Solution annealed | 200 | 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 Supply condition - Solution annealing and Quenching All product forms - Annealing - Solution annealing d≤180 Conditions the standard permits on delivery. No temperature or medium is published for these, so no order and no alternation is implied. Source: [www.caishuku.com](https://www.caishuku.com/detail/azhlNWIxMjgyNQ__ "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. [X2CrNiMo18-15-3 1.4441 Cr 17,0-19,0 · Ni 13,0-15,5 - ΔCr 0.50 - ΔNi 0.25 - 1 designations](/materials/din-en/x2crnimo18-15-3 "X2CrNiMo18-15-3")[X2CrNiMoN18-15-5 1.4483 Cr 17,0-20,0 · Ni 13,5-17,5 - ΔCr 0.00 - ΔNi 1.00 - 3 designations](/materials/din-en/x2crnimon18-15-5 "X2CrNiMoN18-15-5")[1.4435 1.4435 Cr 17,0-19,0 · Ni 12,5-15,0 - ΔCr 0.50 - ΔNi 0.75 - 99 designations](/materials/material-no/1.4435 "1.4435")[X2CrNiMoN18-15-4 1.4442 Cr 17,0-18,5 · Ni 14,0-16,0 - ΔCr 0.75 - ΔNi 0.50 - 3 designations](/materials/din-en/x2crnimon18-15-4 "X2CrNiMoN18-15-4")[X1CrNiSi18-15-4 1.4361 Cr 16,5-18,5 · Ni 14,0-16,0 - ΔCr 1.00 - ΔNi 0.50 - 11 designations](/materials/din-en/x1crnisi18-15-4 "X1CrNiSi18-15-4")[X2CrNiMoN18-13-3 1.4428 Cr 17,0-18,5 · Ni 13,0-14,5 - ΔCr 0.75 - ΔNi 0.75 - 1 designations](/materials/din-en/x2crnimon18-13-3 "X2CrNiMoN18-13-3") ## 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=9320c5ce-f130-423a-989e-e89867b6bf75&designation=9fca74e9-70ca-4dfc-8b51-d92d8226f5fc "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/gb/oocr19ni13mo.pdf "Datasheet as PDF")