--- title: "Č.45702 — Stainless steels" description: "Č.45702 in JUS: material number 1.4303, also listed as X4CrNi18-12. Category: Stainless steels. Designations recorded for this grade: 84." canonical: https://steelequivalents.com/materials/jus/c-45702 language: en robots: index, follow og_type: website type: material-detail language_alternates: en: https://steelequivalents.com/materials/jus/c-45702.md cs: https://steelequivalents.com/cs/materiály/jus/c-45702.md de: https://steelequivalents.com/de/werkstoffe/jus/c-45702.md es: https://steelequivalents.com/es/materiales/jus/c-45702.md fr: https://steelequivalents.com/fr/matériaux/jus/c-45702.md hu: https://steelequivalents.com/hu/anyagok/jus/c-45702.md it: https://steelequivalents.com/it/materiali/jus/c-45702.md nl: https://steelequivalents.com/nl/materialen/jus/c-45702.md pl: https://steelequivalents.com/pl/materiały/jus/c-45702.md pt: https://steelequivalents.com/pt/materiais/jus/c-45702.md ru: https://steelequivalents.com/ru/материалы/jus/c-45702.md tr: https://steelequivalents.com/tr/malzemeler/jus/c-45702.md zh: https://steelequivalents.com/zh/材料/jus/c-45702.md ja: https://steelequivalents.com/ja/材料/jus/c-45702.md ar: https://steelequivalents.com/ar/المواد/jus/c-45702.md ko: https://steelequivalents.com/ko/재료/jus/c-45702.md pt-br: https://steelequivalents.com/pt-br/materiais/jus/c-45702.md hi: https://steelequivalents.com/hi/सामग्री/jus/c-45702.md content_hash: sha256:10173e2c7a9a86c6ed1219ee46860feef77bd9a9eb7271e43a3ed8d2e921bd07 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/jus/c-45702 > Canonical URL: https://steelequivalents.com/materials/jus/c-45702 > 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. JUS · former Yugoslavia · 84 designations # Č.45702 Č.45702 is a designation in JUS for the material held under material number 1.4303, also listed as X4CrNi18-12. It is a material in the category Stainless steels. We list 84 designations recorded for this grade, in the standards DIN / EN, UNS, AISI / SAE, ASTM, BS, AFNOR, UNE, SAE AMS, JIS, GB, GOST, UNI, SS, PN and JUS. - [*Material no.* **1.4303**](/materials/material-no/1.4303 "Material no.: 1.4303") - [*Category* **Stainless steels · 468 grades**](/categories/stainless-steels "Category: Stainless steels · 468 grades") - *Designations* **84** [Search](/search "Steel grade search")[Inquiry](/inquiry?material=d0baa2da-e983-4d62-aa8d-eeab3e5e6554&designation=e9212483-471c-4602-89c9-22125fbfd8b8 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/jus/c-45702.pdf "Datasheet as PDF") ## If you came for one of these The most-used names for this grade. - [DIN / EN X4CrNi18-12 This grade’s own name](/materials/din-en/x4crni18-12 "DIN / EN X4CrNi18-12") - [UNS S30800 This grade’s own name](/materials/uns/s30800 "UNS S30800") - [AISI / SAE 308 This grade’s own name · 2 grades on that route](/materials/aisi-sae/308 "AISI / SAE 308") - [JIS SUS305J1 This grade’s own name](/materials/jis/sus305j1 "JIS SUS305J1") ## 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 84 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 · 3 - [X 5 CrNi 18 12 This grade’s own name Withdrawn](/materials/din-en/x-5-crni-18-12 "DIN / EN X 5 CrNi 18 12") - [X4CrNi18-12 This grade’s own name](/materials/din-en/x4crni18-12 "DIN / EN X4CrNi18-12") - [X6CrNi18-12 This grade’s own name](/materials/din-en/x6crni18-12 "DIN / EN X6CrNi18-12") UNS United States · 6 - [S30300 Indicative](/materials/uns/s30300 "UNS S30300") - [S30400 Indicative](/materials/uns/s30400 "UNS S30400") - [S30403 Indicative](/materials/uns/s30403 "UNS S30403") - [S30453 Indicative](/materials/uns/s30453 "UNS S30453") - [S30500 Indicative](/materials/uns/s30500 "UNS S30500") - [S30800 This grade’s own name](/materials/uns/s30800 "UNS S30800") AISI / SAE United States · 11 - [303 Indicative](/materials/aisi-sae/303 "AISI / SAE 303") - [30305 Indicative](/materials/aisi-sae/30305 "AISI / SAE 30305") - [30308 Indicative](/materials/aisi-sae/30308 "AISI / SAE 30308") - [304 Indicative](/materials/aisi-sae/304 "AISI / SAE 304") - [304L Indicative](/materials/aisi-sae/304l "AISI / SAE 304L") - [304LN Indicative](/materials/aisi-sae/304ln "AISI / SAE 304LN") - [305 Indicative](/materials/aisi-sae/305 "AISI / SAE 305") - [305L Indicative](/materials/aisi-sae/305l "AISI / SAE 305L") - [308 This grade’s own name](/materials/aisi-sae/308 "AISI / SAE 308") - [S30500 Indicative](/materials/uns/s30500 "AISI / SAE S30500") - [S30800 Indicative](/materials/uns/s30800 "AISI / SAE S30800") ASTM United States · 31 - [305 3008 Indicative](/materials/astm/305-3008 "ASTM 305 3008") - [A1012 Indicative](/materials/astm/a1012 "ASTM A1012") - [A167 Indicative](/materials/astm/a167 "ASTM A167") - [A193 Indicative](/materials/astm/a193 "ASTM A193") - [A194 Indicative](/materials/astm/a194 "ASTM A194") - [A240 Indicative](/materials/astm/a240 "ASTM A240") - [A249 Indicative](/materials/astm/a249 "ASTM A249") - [A276 Indicative](/materials/astm/a276 "ASTM A276") - [A313 Indicative](/materials/astm/a313 "ASTM A313") - [A314 Indicative](/materials/astm/a314 "ASTM A314") - [A320 Indicative](/materials/nbn/a320 "ASTM A320") - [A368 Indicative](/materials/astm/a368 "ASTM A368") - [A473 Indicative](/materials/astm/a473 "ASTM A473") - [A478 Indicative](/materials/astm/a478 "ASTM A478") - [A480 Indicative](/materials/astm/a480 "ASTM A480") - [A492 Indicative](/materials/astm/a492 "ASTM A492") - [A493 Indicative](/materials/astm/a493 "ASTM A493") - [A511 Indicative](/materials/astm/a511 "ASTM A511") - [A554 Indicative](/materials/astm/a554 "ASTM A554") - [A580 Indicative](/materials/astm/a580 "ASTM A580") - [F1667 Indicative](/materials/astm/f1667 "ASTM F1667") - [F2215 Indicative](/materials/astm/f2215 "ASTM F2215") - [F593 Indicative](/materials/astm/f593 "ASTM F593") - [F594 Indicative](/materials/astm/f594 "ASTM F594") - [F738 Indicative](/materials/astm/f738 "ASTM F738") - [F836 Indicative](/materials/astm/f836 "ASTM F836") - [F837 Indicative](/materials/astm/f837 "ASTM F837") - [F879 Indicative](/materials/astm/f879 "ASTM F879") - [F880 Indicative](/materials/astm/f880 "ASTM F880") - [TP304 Indicative](/materials/astm/tp304 "ASTM TP304") - [TP304L Indicative](/materials/astm/tp304l "ASTM TP304L") BS United Kingdom · 2 - [305S17 Indicative](/materials/bs/305s17 "BS 305S17") - [305S19 Indicative](/materials/bs/305s19 "BS 305S19") AFNOR France · 3 - [Z1CN18-12 Indicative](/materials/afnor/z1cn18-12 "AFNOR Z1CN18-12") - [Z5CN18-11FF Indicative](/materials/afnor/z5cn18-11ff "AFNOR Z5CN18-11FF") - [Z8CN18-12 Indicative](/materials/afnor/z8cn18-12 "AFNOR Z8CN18-12") UNE Spain · 3 - [F.3513 Indicative](/materials/une/f-3513 "UNE F.3513") - [F.3513-X8CrNi.18-12 Indicative](/materials/une/f-3513-x8crni-18-12 "UNE F.3513-X8CrNi.18-12") - [X8CrNi18-12 Indicative](/materials/une/x8crni18-12 "UNE X8CrNi18-12") SAE AMS United States / Aerospace · 3 - [5514 Indicative](/materials/ams/5514 "SAE AMS 5514") - [5685 Indicative](/materials/ams/5685 "SAE AMS 5685") - [5686 Indicative](/materials/ams/5686 "SAE AMS 5686") JIS Japan · 3 - [SUS 305 SUS 305J1 Indicative](/materials/jis/sus-305-sus-305j1 "JIS SUS 305 SUS 305J1") - [SUS305 Indicative](/materials/jis/sus305 "JIS SUS305") - [SUS305J1 This grade’s own name](/materials/jis/sus305j1 "JIS SUS305J1") GB China · 1 - [1Cr18Ni12 Indicative](/materials/gb/1cr18ni12 "GB 1Cr18Ni12") GOST Russia / CIS · 11 - [06Ch18N11 Indicative](/materials/gost/06ch18n11 "GOST 06Ch18N11") - [06KH18N11 Indicative](/materials/gost/06kh18n11 "GOST 06KH18N11") - [06X18H11 Indicative](/materials/gost/06x18h11 "GOST 06X18H11") - [06Х18Н11 Indicative](/materials/gost/06kh18n11 "GOST 06Х18Н11") - [0Х18Н11 Indicative](/materials/gost/0kh18n11 "GOST 0Х18Н11") - [12KH18N12BL Indicative](/materials/gost/12kh18n12bl "GOST 12KH18N12BL") - [12KH18N12T Indicative](/materials/gost/12kh18n12t "GOST 12KH18N12T") - [12Х18Н12 Indicative](/materials/gost/12kh18n12 "GOST 12Х18Н12") - [ст.06X18H11 Indicative](/materials/gost/st-06x18h11 "GOST ст.06X18H11") - [Х18Н12Т Indicative](/materials/gost/kh18n12t "GOST Х18Н12Т") - [ЭИ684 Indicative](/materials/gost/ei684 "GOST ЭИ684") UNI Italy · 3 - [X7CrNi18-10 Indicative](/materials/uni/x7crni18-10 "UNI X7CrNi18-10") - [X8CrNi1812 Indicative](/materials/une/x8crni18-12 "UNI X8CrNi1812") - [X8CrNi19-10 Indicative](/materials/uni/x8crni19-10 "UNI X8CrNi19-10") SS Sweden · 1 - [23 33 Indicative](/materials/ss/2333 "SS 23 33") PN Poland · 2 - [00H18N10 Indicative](/materials/pn/00h18n10 "PN 00H18N10") - [0H18N9 Indicative](/materials/pn/0h18n9 "PN 0H18N9") JUS former Yugoslavia · 1 - **Č.45702 Indicative** Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here. ## Chemical composition 8 elements on file · weight % What this alloy is Fe Cr Ni Mn Iron — the balance, never listed by a standard — 66.8 % Cr — 18 % Ni — 12 % Mn — 2 % Traces & impurities · 1.2 % Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade. | Element | % by weight | |---|---| | C | ≤ 0.06 | | Si | ≤ 1 | | Mn | ≤ 2 | | P | 0.045 | | S | 0.015 | | Cr | 17–19 | | Ni | 11–13 | | N | 0.11 | Carbon Silicon Manganese Phosphorus Sulfur Chromium 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 | ≤0,06 | — | 0.060 | 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 | 17,0-19,0 | 17.000 | 19.000 | Range | | Mn | ≤2,00 | — | 2.000 | Max | | Ni | 11,0-13,0 | 11.000 | 13.000 | 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 Not enough recorded composition to predict a transformation temperature for this grade — missing: Mo. ## Physical & mechanical properties Density 7,9 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 7 conditions · 87 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**no delivery state stated** source `splav` | Delivery state | Rm N/mm² | A5% | |---|---|---| | Pipe hot strain, GOST 9940-81 | 529 | 40 | | Pipe cooling strain, GOST 9941-81 | 549 | 35 | By delivery state**Soft annealed** source `steelnumber` | Delivery state | HB | |---|---| | Soft annealed | 215 | By heat-treated condition**no delivery state stated** source `splav` | Heat-treated condition | Rm N/mm² | Re N/mm² | A5% | Z% | |---|---|---|---|---| | Pipe | 540 | 220 | 35 | 55 | By heat-treated condition**no delivery state stated** source `splav` | Heat-treated condition | Rm N/mm² | Re N/mm² | A5% | Z% | |---|---|---|---|---| | Bar, GOST 5949-75 | 540 | 196 | 40 | 55 | By heat-treated condition**no delivery state stated** source `splav` | Heat-treated condition | Rm N/mm² | Re N/mm² | A5% | |---|---|---|---| | Sheet trick, GOST 7350-77 | 530 | 235 | 38 | 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 | 7.9 | 205 | — | 15.1 | — | 761 | | 100 | 7.86 | 202 | 16.6 | 16.3 | 460 | 800 | | 200 | 7.82 | 197 | 17 | 17.6 | 482 | 865 | | 300 | 7.78 | 190 | 17.2 | 18.7 | 507 | 930 | | 400 | 7.74 | 181 | 17.5 | 20.4 | 525 | 982 | | 500 | 7.69 | 173 | 17.9 | 22.2 | 545 | 1038 | | 600 | 7.65 | 160 | 18.2 | 24.1 | 563 | 1070 | | 700 | 7.6 | 150 | 18.6 | 25.9 | 579 | 1120 | | 800 | 7.56 | — | 18.9 | 27.4 | 590 | 1155 | | 900 | 7.51 | — | 19.3 | 29.1 | 603 | 1210 | | 1000 | — | — | — | 30.8 | 616 | 1245 | | 1100 | — | — | — | 32.3 | 625 | 1275 | | 1200 | — | — | — | 34.1 | 637 | 1315 | 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. [X2CrNiMoN18-12-4 1.4434 Cr 16,5-19,5 · Ni 10,5-14,0 - ΔCr 0.00 - ΔNi 0.25 - 8 designations](/materials/din-en/x2crnimon18-12-4 "X2CrNiMoN18-12-4")[X3CrNiMo18-12-3 1.4449 Cr 17,0-18,2 · Ni 11,5-12,5 - ΔCr 0.40 - ΔNi 0.00 - 35 designations](/materials/din-en/x3crnimo18-12-3 "X3CrNiMo18-12-3")[X2CrNiMo19-12 1.4430 Cr 17,2-19,8 · Ni 10,7-13,3 - ΔCr 0.50 - ΔNi 0.00 - 2 designations](/materials/din-en/x2crnimo19-12 "X2CrNiMo19-12")[1.4571 1.4571 Cr 16,5-18,5 · Ni 10,5-13,5 - ΔCr 0.50 - ΔNi 0.00 - 72 designations](/materials/material-no/1.4571 "1.4571")[X6CrNiMoNb17-12-2 1.4580 Cr 16,5-18,5 · Ni 10,5-13,5 - ΔCr 0.50 - ΔNi 0.00 - 16 designations](/materials/din-en/x6crnimonb17-12-2 "X6CrNiMoNb17-12-2")[1.4436 1.4436 Cr 16,5-18,5 · Ni 10,5-13,0 - ΔCr 0.50 - ΔNi 0.25 - 118 designations](/materials/material-no/1.4436 "1.4436") ## 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=d0baa2da-e983-4d62-aa8d-eeab3e5e6554&designation=e9212483-471c-4602-89c9-22125fbfd8b8 "Inquiry")[**Datasheet as PDF** Print-ready A4 document **Generating …** **Download started** **Try again**](/materials/jus/c-45702.pdf "Datasheet as PDF")