--- title: "1.8881 — P690QL1, 10 equivalent designations" description: "1.8881 is the material number of the grade also listed as P690QL1. It is a material in the category Others. Designations recorded for this grade: 10." canonical: https://steelequivalents.com/materials/material-no/1.8881 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/material-no/1.8881.md cs: https://steelequivalents.com/cs/materiály/číslo-materiálu/1.8881.md de: https://steelequivalents.com/de/werkstoffe/werkstoff-nr/1.8881.md es: https://steelequivalents.com/es/materiales/número-de-material/1.8881.md fr: https://steelequivalents.com/fr/matériaux/numéro-de-matériau/1.8881.md hu: https://steelequivalents.com/hu/anyagok/anyagszám/1.8881.md it: https://steelequivalents.com/it/materiali/numero-materiale/1.8881.md nl: https://steelequivalents.com/nl/materialen/materiaalnummer/1.8881.md pl: https://steelequivalents.com/pl/materiały/numer-materiału/1.8881.md pt: https://steelequivalents.com/pt/materiais/número-do-material/1.8881.md ru: https://steelequivalents.com/ru/материалы/номер-материала/1.8881.md tr: https://steelequivalents.com/tr/malzemeler/malzeme-numarası/1.8881.md zh: https://steelequivalents.com/zh/材料/材料编号/1.8881.md ja: https://steelequivalents.com/ja/材料/材料番号/1.8881.md ar: https://steelequivalents.com/ar/المواد/رقم-المادة/1.8881.md ko: https://steelequivalents.com/ko/재료/재료번호/1.8881.md pt-br: https://steelequivalents.com/pt-br/materiais/número-do-material/1.8881.md hi: https://steelequivalents.com/hi/सामग्री/सामग्री-संख्या/1.8881.md content_hash: sha256:f5124e82be04ab9d9d9fda3c92db17ebc54ab2860ce5693d232e6be1cde10c1b 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/material-no/1.8881 > Canonical URL: https://steelequivalents.com/materials/material-no/1.8881 > 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. Material number · Europe · 10 designations # 1.8881 1.8881 is the material number of the grade also listed as P690QL1. It is a material in the category Others. We list 10 designations recorded for this grade, in the standards DIN / EN and UNS. - ***Material no.* **1.8881**** - [*Category* **Others · 1754 grades**](/categories/others "Category: Others · 1754 grades") - *Designations* **10** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=20c0a0cf-6028-4fcb-b815-763f18ca3abf "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/material-no/1.8881.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN P690QL1 This grade’s own name](/materials/din-en/p690ql1 "DIN / EN P690QL1") ## About Others These are miscellaneous metallic alloys that do not fit a more specific material family and may be based on iron, nickel, cobalt, copper or other alloy systems. They are selected for applications requiring particular combinations of strength, hardness, toughness, wear resistance or resistance to demanding service conditions. This describes the material class as a whole. Always confirm the individual grade against the standard before ordering. ## Also known as 10 designations · 2 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 - [P690QL1 This grade’s own name](/materials/din-en/p690ql1 "DIN / EN P690QL1") UNS United States · 9 - [K11511 Indicative](/materials/uns/k11511 "UNS K11511") - [K11576 Indicative](/materials/uns/k11576 "UNS K11576") - [K11625 Indicative](/materials/uns/k11625 "UNS K11625") - [K11630 Indicative](/materials/uns/k11630 "UNS K11630") - [K11646 Indicative](/materials/uns/k11646 "UNS K11646") - [K11683 Indicative](/materials/uns/k11683 "UNS K11683") - [K11856 Indicative](/materials/uns/k11856 "UNS K11856") - [K21604 Indicative](/materials/uns/k21604 "UNS K21604") - [K21650 Indicative](/materials/uns/k21650 "UNS K21650") Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 15 elements on file · weight % What this alloy is Fe Ni Mn Cr Iron — the balance, never listed by a standard — 91.9 % Ni — 2.5 % Mn — 1.7 % Cr — 1.5 % Traces & impurities · 2.4 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.2 | | Si | ≤ 0.8 | | Mn | ≤ 1.7 | | P | 0.02 | | S | 0.01 | | Cr | ≤ 1.5 | | Mo | ≤ 0.7 | | Ni | 2.5 | | V | ≤ 0.12 | | Cu | ≤ 0.3 | | Ti | ≤ 0.05 | | Nb | ≤ 0.06 | | N | 0.015 | | B | ≤ 0.005 | | Zr | ≤ 0.15 | Carbon Silicon Manganese Phosphorus Sulfur Chromium Molybdenum Nickel Vanadium Copper Titanium Niobium Nitrogen Boron Zirconium 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 | |---|---|---|---|---| | B | ≤0,0050 | — | 0.005 | Max | | C | ≤0,20 | — | 0.200 | Max | | N | 0,015 | 0.015 | 0.015 | Exact | | Si | ≤0,80 | — | 0.800 | Max | | P | 0,02 | 0.020 | 0.020 | Exact | | S | 0,01 | 0.010 | 0.010 | Exact | | Ti | ≤0,05 | — | 0.050 | Max | | V | ≤0,12 | — | 0.120 | Max | | Cr | ≤1,50 | — | 1.500 | Max | | Mn | ≤1,70 | — | 1.700 | Max | | Ni | 2,5 | 2.500 | 2.500 | Exact | | Cu | ≤0,30 | — | 0.300 | Max | | Zr | ≤0,15 | — | 0.150 | Max | | Nb | ≤0,06 | — | 0.060 | Max | | Mo | ≤0,70 | — | 0.700 | Max | 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 7,85 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 · 5 values By thickness**Quenched and tempered** source `steelnumber` | Thickness mm | ReH N/mm² | Rm N/mm² | |---|---|---| | ≤ 50 | 690 | — | | 50 – 100 | 670 | — | | ≤ 100 | — | 770 – 940 | | 100 – 150 | 630 | 720 – 900 | 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 1.8, a shared category, and a published range for Ni / Mn 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. [P690Q 1.8879 Ni 2,5 · Mn ≤1,70 - ΔNi 0.00 - ΔMn 0.00 - 1 designations](/materials/din-en/p690q "P690Q")[P690QH 1.8880 Ni 2,5 · Mn ≤1,70 - ΔNi 0.00 - ΔMn 0.00 - 1 designations](/materials/din-en/p690qh "P690QH")[P690QL2 1.8888 Ni 2,5 · Mn ≤1,70 - ΔNi 0.00 - ΔMn 0.00 - 1 designations](/materials/din-en/p690ql2 "P690QL2")[S1100QL 1.8942 Ni 2,5 · Mn ≤1,70 - ΔNi 0.00 - ΔMn 0.00 - 1 designations](/materials/din-en/s1100ql "S1100QL") ## 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=20c0a0cf-6028-4fcb-b815-763f18ca3abf "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/material-no/1.8881.pdf "Datasheet as PDF")